/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 09:39:36,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 09:39:36,375 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 09:39:36,410 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 09:39:36,411 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 09:39:36,412 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 09:39:36,414 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 09:39:36,417 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 09:39:36,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 09:39:36,423 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 09:39:36,424 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 09:39:36,426 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 09:39:36,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 09:39:36,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 09:39:36,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 09:39:36,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 09:39:36,440 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 09:39:36,441 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 09:39:36,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 09:39:36,446 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 09:39:36,448 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 09:39:36,450 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 09:39:36,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 09:39:36,453 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 09:39:36,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 09:39:36,456 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 09:39:36,457 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 09:39:36,458 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 09:39:36,458 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 09:39:36,460 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 09:39:36,460 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 09:39:36,461 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 09:39:36,462 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 09:39:36,463 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 09:39:36,464 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 09:39:36,464 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 09:39:36,465 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 09:39:36,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 09:39:36,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 09:39:36,467 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 09:39:36,468 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 09:39:36,469 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 09:39:36,496 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 09:39:36,497 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 09:39:36,498 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 09:39:36,498 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 09:39:36,499 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 09:39:36,499 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 09:39:36,499 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 09:39:36,499 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 09:39:36,500 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 09:39:36,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 09:39:36,500 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 09:39:36,500 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 09:39:36,501 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 09:39:36,501 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 09:39:36,501 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 09:39:36,501 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 09:39:36,502 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 09:39:36,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 09:39:36,502 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 09:39:36,502 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 09:39:36,503 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 09:39:36,503 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 09:39:36,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 09:39:36,503 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 09:39:36,503 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 09:39:36,504 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 09:39:36,894 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 09:39:36,919 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 09:39:36,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 09:39:36,925 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 09:39:36,925 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 09:39:36,926 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.UNBOUNDED.pals.c [2020-12-23 09:39:37,001 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/2118c3e5f/b45dd84f61f248b080f3428b898b17f6/FLAGfd6584976 [2020-12-23 09:39:37,685 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 09:39:37,686 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.UNBOUNDED.pals.c [2020-12-23 09:39:37,700 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/2118c3e5f/b45dd84f61f248b080f3428b898b17f6/FLAGfd6584976 [2020-12-23 09:39:37,976 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/2118c3e5f/b45dd84f61f248b080f3428b898b17f6 [2020-12-23 09:39:37,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 09:39:37,988 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 09:39:37,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 09:39:37,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 09:39:37,997 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 09:39:37,998 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:39:37" (1/1) ... [2020-12-23 09:39:37,999 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38c30e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:39:37, skipping insertion in model container [2020-12-23 09:39:37,999 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:39:37" (1/1) ... [2020-12-23 09:39:38,008 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 09:39:38,079 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~ini_bool~0,] left hand side expression in assignment: lhs: VariableLHS[~ini_int~0,] left hand side expression in assignment: lhs: VariableLHS[~var~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~votedValue_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~votedValue_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~votedValue_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___3~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___4~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___5~0,] left hand side expression in assignment: lhs: VariableLHS[~temp_count~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___10~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___6~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___7~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___8~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___9~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___11~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___12~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___13~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___14~0,] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g1v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~next_state~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~3,] left hand side expression in assignment: lhs: VariableLHS[~g1v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g2v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~next_state~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~4,] left hand side expression in assignment: lhs: VariableLHS[~g2v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g3v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~5,] left hand side expression in assignment: lhs: VariableLHS[~next_state~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~5,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~5,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~5,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~5,] left hand side expression in assignment: lhs: VariableLHS[~g3v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~VALUE1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g1v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~VALUE2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g2v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~VALUE3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g3v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~c1~0,] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~VALUE1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~VALUE2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~VALUE3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~votedValue_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~votedValue_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~votedValue_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~i2~0,] left hand side expression in assignment: lhs: VariableLHS[~g1v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g1v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g2v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g2v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g3v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g3v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~i2~0,] left hand side expression in assignment: lhs: VariableLHS[~g1v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g1v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g2v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g2v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g3v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g3v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~c1~0,] [2020-12-23 09:39:38,350 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.UNBOUNDED.pals.c[12020,12033] [2020-12-23 09:39:38,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 09:39:38,369 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~ini_bool~0,] left hand side expression in assignment: lhs: VariableLHS[~ini_int~0,] left hand side expression in assignment: lhs: VariableLHS[~var~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~votedValue_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~votedValue_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~votedValue_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___3~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___4~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___5~0,] left hand side expression in assignment: lhs: VariableLHS[~temp_count~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___10~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___6~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___7~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___8~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___9~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___11~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___12~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___13~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___14~0,] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g1v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~next_state~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~3,] left hand side expression in assignment: lhs: VariableLHS[~g1v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g2v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~next_state~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~4,] left hand side expression in assignment: lhs: VariableLHS[~g2v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g3v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~5,] left hand side expression in assignment: lhs: VariableLHS[~next_state~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~5,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~5,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~5,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~5,] left hand side expression in assignment: lhs: VariableLHS[~g3v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~VALUE1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g1v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~VALUE2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g2v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~VALUE3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g3v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~voted_value~0,] left hand side expression in assignment: lhs: VariableLHS[~c1~0,] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~VALUE1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~VALUE2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~VALUE3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate1Failed_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate2Failed_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~gate3Failed_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~votedValue_History_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~votedValue_History_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~votedValue_History_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~i2~0,] left hand side expression in assignment: lhs: VariableLHS[~g1v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g1v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g2v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g2v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g3v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g3v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~i2~0,] left hand side expression in assignment: lhs: VariableLHS[~g1v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g1v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g2v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g2v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g3v_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~g3v_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~c1~0,] [2020-12-23 09:39:38,449 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.UNBOUNDED.pals.c[12020,12033] [2020-12-23 09:39:38,450 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 09:39:38,484 INFO L208 MainTranslator]: Completed translation [2020-12-23 09:39:38,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:39:38 WrapperNode [2020-12-23 09:39:38,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 09:39:38,486 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 09:39:38,486 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 09:39:38,486 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 09:39:38,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:39:38" (1/1) ... [2020-12-23 09:39:38,509 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:39:38" (1/1) ... [2020-12-23 09:39:38,592 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 09:39:38,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 09:39:38,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 09:39:38,594 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 09:39:38,607 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:39:38" (1/1) ... [2020-12-23 09:39:38,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:39:38" (1/1) ... [2020-12-23 09:39:38,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:39:38" (1/1) ... [2020-12-23 09:39:38,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:39:38" (1/1) ... [2020-12-23 09:39:38,677 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:39:38" (1/1) ... [2020-12-23 09:39:38,702 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:39:38" (1/1) ... [2020-12-23 09:39:38,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:39:38" (1/1) ... [2020-12-23 09:39:38,721 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 09:39:38,722 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 09:39:38,722 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 09:39:38,722 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 09:39:38,723 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:39:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/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 [2020-12-23 09:39:38,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 09:39:38,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 09:39:38,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 09:39:38,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 09:39:40,352 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 09:39:40,353 INFO L299 CfgBuilder]: Removed 183 assume(true) statements. [2020-12-23 09:39:40,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:39:40 BoogieIcfgContainer [2020-12-23 09:39:40,356 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 09:39:40,357 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 09:39:40,358 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 09:39:40,361 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 09:39:40,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 09:39:37" (1/3) ... [2020-12-23 09:39:40,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3429bba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:39:40, skipping insertion in model container [2020-12-23 09:39:40,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:39:38" (2/3) ... [2020-12-23 09:39:40,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3429bba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:39:40, skipping insertion in model container [2020-12-23 09:39:40,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:39:40" (3/3) ... [2020-12-23 09:39:40,365 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_Triplicated.1.ufo.UNBOUNDED.pals.c [2020-12-23 09:39:40,372 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 09:39:40,377 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 37 error locations. [2020-12-23 09:39:40,397 INFO L253 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2020-12-23 09:39:40,430 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 09:39:40,430 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 09:39:40,430 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 09:39:40,430 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 09:39:40,431 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 09:39:40,431 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 09:39:40,431 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 09:39:40,431 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 09:39:40,462 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states. [2020-12-23 09:39:40,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-23 09:39:40,470 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:40,471 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:40,471 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:40,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:40,478 INFO L82 PathProgramCache]: Analyzing trace with hash 595705480, now seen corresponding path program 1 times [2020-12-23 09:39:40,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:40,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839783721] [2020-12-23 09:39:40,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:40,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:40,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:39:40,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839783721] [2020-12-23 09:39:40,693 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:39:40,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:39:40,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107668494] [2020-12-23 09:39:40,698 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:39:40,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:40,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:39:40,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:39:40,716 INFO L87 Difference]: Start difference. First operand 521 states. Second operand 3 states. [2020-12-23 09:39:40,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:40,989 INFO L93 Difference]: Finished difference Result 1245 states and 2060 transitions. [2020-12-23 09:39:40,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:39:40,991 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-12-23 09:39:40,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:41,024 INFO L225 Difference]: With dead ends: 1245 [2020-12-23 09:39:41,024 INFO L226 Difference]: Without dead ends: 726 [2020-12-23 09:39:41,037 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 [2020-12-23 09:39:41,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2020-12-23 09:39:41,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 457. [2020-12-23 09:39:41,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2020-12-23 09:39:41,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 712 transitions. [2020-12-23 09:39:41,146 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 712 transitions. Word has length 9 [2020-12-23 09:39:41,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:41,147 INFO L481 AbstractCegarLoop]: Abstraction has 457 states and 712 transitions. [2020-12-23 09:39:41,147 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:39:41,147 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 712 transitions. [2020-12-23 09:39:41,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-23 09:39:41,148 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:41,149 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:41,149 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 09:39:41,149 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:41,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:41,150 INFO L82 PathProgramCache]: Analyzing trace with hash -503954138, now seen corresponding path program 1 times [2020-12-23 09:39:41,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:41,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548473271] [2020-12-23 09:39:41,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:41,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:41,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:39:41,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548473271] [2020-12-23 09:39:41,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:39:41,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:39:41,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608403116] [2020-12-23 09:39:41,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:39:41,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:41,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:39:41,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:39:41,203 INFO L87 Difference]: Start difference. First operand 457 states and 712 transitions. Second operand 3 states. [2020-12-23 09:39:41,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:41,279 INFO L93 Difference]: Finished difference Result 1131 states and 1746 transitions. [2020-12-23 09:39:41,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:39:41,280 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-23 09:39:41,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:41,285 INFO L225 Difference]: With dead ends: 1131 [2020-12-23 09:39:41,285 INFO L226 Difference]: Without dead ends: 676 [2020-12-23 09:39:41,287 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 [2020-12-23 09:39:41,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2020-12-23 09:39:41,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 424. [2020-12-23 09:39:41,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 424 states. [2020-12-23 09:39:41,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 654 transitions. [2020-12-23 09:39:41,309 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 654 transitions. Word has length 10 [2020-12-23 09:39:41,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:41,309 INFO L481 AbstractCegarLoop]: Abstraction has 424 states and 654 transitions. [2020-12-23 09:39:41,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:39:41,310 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 654 transitions. [2020-12-23 09:39:41,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-23 09:39:41,311 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:41,311 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:41,312 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 09:39:41,312 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:41,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:41,313 INFO L82 PathProgramCache]: Analyzing trace with hash -248055967, now seen corresponding path program 1 times [2020-12-23 09:39:41,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:41,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534837386] [2020-12-23 09:39:41,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:41,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:41,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:39:41,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534837386] [2020-12-23 09:39:41,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:39:41,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:39:41,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372799034] [2020-12-23 09:39:41,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:39:41,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:41,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:39:41,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:39:41,391 INFO L87 Difference]: Start difference. First operand 424 states and 654 transitions. Second operand 3 states. [2020-12-23 09:39:41,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:41,443 INFO L93 Difference]: Finished difference Result 1250 states and 1933 transitions. [2020-12-23 09:39:41,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:39:41,444 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-12-23 09:39:41,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:41,449 INFO L225 Difference]: With dead ends: 1250 [2020-12-23 09:39:41,449 INFO L226 Difference]: Without dead ends: 836 [2020-12-23 09:39:41,450 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 [2020-12-23 09:39:41,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2020-12-23 09:39:41,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 428. [2020-12-23 09:39:41,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 428 states. [2020-12-23 09:39:41,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 658 transitions. [2020-12-23 09:39:41,467 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 658 transitions. Word has length 14 [2020-12-23 09:39:41,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:41,467 INFO L481 AbstractCegarLoop]: Abstraction has 428 states and 658 transitions. [2020-12-23 09:39:41,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:39:41,468 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 658 transitions. [2020-12-23 09:39:41,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-23 09:39:41,469 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:41,469 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:41,469 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 09:39:41,470 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:41,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:41,470 INFO L82 PathProgramCache]: Analyzing trace with hash -35486156, now seen corresponding path program 1 times [2020-12-23 09:39:41,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:41,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3017983] [2020-12-23 09:39:41,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:41,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:41,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:39:41,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3017983] [2020-12-23 09:39:41,525 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:39:41,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 09:39:41,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948044794] [2020-12-23 09:39:41,526 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:39:41,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:41,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:39:41,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:39:41,527 INFO L87 Difference]: Start difference. First operand 428 states and 658 transitions. Second operand 4 states. [2020-12-23 09:39:41,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:41,606 INFO L93 Difference]: Finished difference Result 1579 states and 2407 transitions. [2020-12-23 09:39:41,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 09:39:41,606 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-12-23 09:39:41,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:41,613 INFO L225 Difference]: With dead ends: 1579 [2020-12-23 09:39:41,613 INFO L226 Difference]: Without dead ends: 1165 [2020-12-23 09:39:41,614 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:39:41,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1165 states. [2020-12-23 09:39:41,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1165 to 430. [2020-12-23 09:39:41,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2020-12-23 09:39:41,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 660 transitions. [2020-12-23 09:39:41,632 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 660 transitions. Word has length 18 [2020-12-23 09:39:41,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:41,633 INFO L481 AbstractCegarLoop]: Abstraction has 430 states and 660 transitions. [2020-12-23 09:39:41,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:39:41,633 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 660 transitions. [2020-12-23 09:39:41,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-23 09:39:41,634 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:41,634 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:41,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 09:39:41,635 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:41,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:41,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1707916525, now seen corresponding path program 1 times [2020-12-23 09:39:41,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:41,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953980109] [2020-12-23 09:39:41,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:41,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:41,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:39:41,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953980109] [2020-12-23 09:39:41,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:39:41,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 09:39:41,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555679426] [2020-12-23 09:39:41,684 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:39:41,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:41,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:39:41,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:39:41,685 INFO L87 Difference]: Start difference. First operand 430 states and 660 transitions. Second operand 4 states. [2020-12-23 09:39:41,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:41,726 INFO L93 Difference]: Finished difference Result 673 states and 1026 transitions. [2020-12-23 09:39:41,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:39:41,726 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-12-23 09:39:41,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:41,729 INFO L225 Difference]: With dead ends: 673 [2020-12-23 09:39:41,729 INFO L226 Difference]: Without dead ends: 428 [2020-12-23 09:39:41,730 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:39:41,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2020-12-23 09:39:41,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 428. [2020-12-23 09:39:41,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 428 states. [2020-12-23 09:39:41,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 653 transitions. [2020-12-23 09:39:41,742 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 653 transitions. Word has length 19 [2020-12-23 09:39:41,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:41,743 INFO L481 AbstractCegarLoop]: Abstraction has 428 states and 653 transitions. [2020-12-23 09:39:41,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:39:41,743 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 653 transitions. [2020-12-23 09:39:41,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-23 09:39:41,744 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:41,744 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:41,744 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 09:39:41,744 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:41,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:41,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1967275947, now seen corresponding path program 1 times [2020-12-23 09:39:41,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:41,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607348960] [2020-12-23 09:39:41,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:41,787 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:39:41,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607348960] [2020-12-23 09:39:41,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821592847] [2020-12-23 09:39:41,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 09:39:41,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:41,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 09:39:41,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 09:39:41,994 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:39:41,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 09:39:41,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-12-23 09:39:41,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221093405] [2020-12-23 09:39:41,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:39:41,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:41,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:39:41,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:39:41,997 INFO L87 Difference]: Start difference. First operand 428 states and 653 transitions. Second operand 5 states. [2020-12-23 09:39:42,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:42,112 INFO L93 Difference]: Finished difference Result 1667 states and 2557 transitions. [2020-12-23 09:39:42,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:39:42,112 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-12-23 09:39:42,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:42,119 INFO L225 Difference]: With dead ends: 1667 [2020-12-23 09:39:42,119 INFO L226 Difference]: Without dead ends: 1250 [2020-12-23 09:39:42,120 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:39:42,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-12-23 09:39:42,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 574. [2020-12-23 09:39:42,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 574 states. [2020-12-23 09:39:42,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 903 transitions. [2020-12-23 09:39:42,144 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 903 transitions. Word has length 21 [2020-12-23 09:39:42,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:42,145 INFO L481 AbstractCegarLoop]: Abstraction has 574 states and 903 transitions. [2020-12-23 09:39:42,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:39:42,145 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 903 transitions. [2020-12-23 09:39:42,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-23 09:39:42,146 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:42,146 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:42,360 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-12-23 09:39:42,362 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:42,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:42,363 INFO L82 PathProgramCache]: Analyzing trace with hash -1165168607, now seen corresponding path program 2 times [2020-12-23 09:39:42,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:42,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409717280] [2020-12-23 09:39:42,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:42,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:42,455 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-23 09:39:42,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409717280] [2020-12-23 09:39:42,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:39:42,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:39:42,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613539856] [2020-12-23 09:39:42,460 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:39:42,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:42,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:39:42,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:39:42,463 INFO L87 Difference]: Start difference. First operand 574 states and 903 transitions. Second operand 3 states. [2020-12-23 09:39:42,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:42,609 INFO L93 Difference]: Finished difference Result 1297 states and 2010 transitions. [2020-12-23 09:39:42,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:39:42,610 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2020-12-23 09:39:42,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:42,614 INFO L225 Difference]: With dead ends: 1297 [2020-12-23 09:39:42,614 INFO L226 Difference]: Without dead ends: 781 [2020-12-23 09:39:42,615 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 [2020-12-23 09:39:42,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2020-12-23 09:39:42,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 508. [2020-12-23 09:39:42,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2020-12-23 09:39:42,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 778 transitions. [2020-12-23 09:39:42,636 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 778 transitions. Word has length 28 [2020-12-23 09:39:42,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:42,636 INFO L481 AbstractCegarLoop]: Abstraction has 508 states and 778 transitions. [2020-12-23 09:39:42,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:39:42,636 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 778 transitions. [2020-12-23 09:39:42,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-23 09:39:42,638 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:42,638 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:42,639 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 09:39:42,639 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:42,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:42,640 INFO L82 PathProgramCache]: Analyzing trace with hash 777427029, now seen corresponding path program 1 times [2020-12-23 09:39:42,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:42,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601421665] [2020-12-23 09:39:42,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:42,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:42,734 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-23 09:39:42,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601421665] [2020-12-23 09:39:42,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:39:42,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:39:42,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909447977] [2020-12-23 09:39:42,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:39:42,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:42,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:39:42,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:39:42,736 INFO L87 Difference]: Start difference. First operand 508 states and 778 transitions. Second operand 3 states. [2020-12-23 09:39:42,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:42,799 INFO L93 Difference]: Finished difference Result 1165 states and 1769 transitions. [2020-12-23 09:39:42,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:39:42,800 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2020-12-23 09:39:42,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:42,803 INFO L225 Difference]: With dead ends: 1165 [2020-12-23 09:39:42,804 INFO L226 Difference]: Without dead ends: 688 [2020-12-23 09:39:42,806 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 [2020-12-23 09:39:42,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2020-12-23 09:39:42,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 457. [2020-12-23 09:39:42,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2020-12-23 09:39:42,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 684 transitions. [2020-12-23 09:39:42,821 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 684 transitions. Word has length 28 [2020-12-23 09:39:42,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:42,821 INFO L481 AbstractCegarLoop]: Abstraction has 457 states and 684 transitions. [2020-12-23 09:39:42,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:39:42,822 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 684 transitions. [2020-12-23 09:39:42,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-23 09:39:42,825 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:42,825 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:42,826 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 09:39:42,826 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:42,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:42,826 INFO L82 PathProgramCache]: Analyzing trace with hash 104948594, now seen corresponding path program 1 times [2020-12-23 09:39:42,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:42,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628850861] [2020-12-23 09:39:42,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:42,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:42,931 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-23 09:39:42,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628850861] [2020-12-23 09:39:42,932 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:39:42,932 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 09:39:42,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005630491] [2020-12-23 09:39:42,932 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:39:42,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:42,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:39:42,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:39:42,933 INFO L87 Difference]: Start difference. First operand 457 states and 684 transitions. Second operand 4 states. [2020-12-23 09:39:42,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:42,997 INFO L93 Difference]: Finished difference Result 1099 states and 1650 transitions. [2020-12-23 09:39:42,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:39:42,998 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2020-12-23 09:39:43,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:43,003 INFO L225 Difference]: With dead ends: 1099 [2020-12-23 09:39:43,004 INFO L226 Difference]: Without dead ends: 686 [2020-12-23 09:39:43,005 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:39:43,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2020-12-23 09:39:43,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 457. [2020-12-23 09:39:43,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2020-12-23 09:39:43,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 682 transitions. [2020-12-23 09:39:43,020 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 682 transitions. Word has length 38 [2020-12-23 09:39:43,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:43,020 INFO L481 AbstractCegarLoop]: Abstraction has 457 states and 682 transitions. [2020-12-23 09:39:43,020 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:39:43,020 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 682 transitions. [2020-12-23 09:39:43,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-23 09:39:43,021 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:43,021 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:43,021 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 09:39:43,021 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:43,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:43,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1338937392, now seen corresponding path program 1 times [2020-12-23 09:39:43,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:43,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294721637] [2020-12-23 09:39:43,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:43,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:43,126 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-12-23 09:39:43,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294721637] [2020-12-23 09:39:43,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:39:43,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:39:43,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191736915] [2020-12-23 09:39:43,129 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:39:43,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:43,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:39:43,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:39:43,131 INFO L87 Difference]: Start difference. First operand 457 states and 682 transitions. Second operand 3 states. [2020-12-23 09:39:43,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:43,183 INFO L93 Difference]: Finished difference Result 1035 states and 1549 transitions. [2020-12-23 09:39:43,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:39:43,184 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2020-12-23 09:39:43,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:43,189 INFO L225 Difference]: With dead ends: 1035 [2020-12-23 09:39:43,189 INFO L226 Difference]: Without dead ends: 641 [2020-12-23 09:39:43,192 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 [2020-12-23 09:39:43,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2020-12-23 09:39:43,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 413. [2020-12-23 09:39:43,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2020-12-23 09:39:43,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 608 transitions. [2020-12-23 09:39:43,206 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 608 transitions. Word has length 50 [2020-12-23 09:39:43,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:43,209 INFO L481 AbstractCegarLoop]: Abstraction has 413 states and 608 transitions. [2020-12-23 09:39:43,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:39:43,209 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 608 transitions. [2020-12-23 09:39:43,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-23 09:39:43,211 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:43,211 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:43,211 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 09:39:43,211 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:43,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:43,212 INFO L82 PathProgramCache]: Analyzing trace with hash 970476669, now seen corresponding path program 1 times [2020-12-23 09:39:43,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:43,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686499537] [2020-12-23 09:39:43,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:43,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:43,294 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-12-23 09:39:43,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686499537] [2020-12-23 09:39:43,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:39:43,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:39:43,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757648302] [2020-12-23 09:39:43,296 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:39:43,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:43,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:39:43,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:39:43,302 INFO L87 Difference]: Start difference. First operand 413 states and 608 transitions. Second operand 3 states. [2020-12-23 09:39:43,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:43,358 INFO L93 Difference]: Finished difference Result 869 states and 1278 transitions. [2020-12-23 09:39:43,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:39:43,358 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-12-23 09:39:43,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:43,362 INFO L225 Difference]: With dead ends: 869 [2020-12-23 09:39:43,362 INFO L226 Difference]: Without dead ends: 511 [2020-12-23 09:39:43,363 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 [2020-12-23 09:39:43,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2020-12-23 09:39:43,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 369. [2020-12-23 09:39:43,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2020-12-23 09:39:43,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 520 transitions. [2020-12-23 09:39:43,375 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 520 transitions. Word has length 51 [2020-12-23 09:39:43,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:43,375 INFO L481 AbstractCegarLoop]: Abstraction has 369 states and 520 transitions. [2020-12-23 09:39:43,375 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:39:43,376 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 520 transitions. [2020-12-23 09:39:43,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-12-23 09:39:43,377 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:43,377 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:43,377 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-23 09:39:43,377 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:43,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:43,378 INFO L82 PathProgramCache]: Analyzing trace with hash 216341264, now seen corresponding path program 1 times [2020-12-23 09:39:43,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:43,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880543112] [2020-12-23 09:39:43,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:43,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:43,460 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-12-23 09:39:43,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880543112] [2020-12-23 09:39:43,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:39:43,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 09:39:43,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523945151] [2020-12-23 09:39:43,462 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:39:43,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:43,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:39:43,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:39:43,463 INFO L87 Difference]: Start difference. First operand 369 states and 520 transitions. Second operand 4 states. [2020-12-23 09:39:43,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:43,525 INFO L93 Difference]: Finished difference Result 877 states and 1257 transitions. [2020-12-23 09:39:43,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:39:43,525 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2020-12-23 09:39:43,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:43,530 INFO L225 Difference]: With dead ends: 877 [2020-12-23 09:39:43,534 INFO L226 Difference]: Without dead ends: 580 [2020-12-23 09:39:43,536 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:39:43,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-12-23 09:39:43,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 369. [2020-12-23 09:39:43,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2020-12-23 09:39:43,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 518 transitions. [2020-12-23 09:39:43,550 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 518 transitions. Word has length 62 [2020-12-23 09:39:43,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:43,552 INFO L481 AbstractCegarLoop]: Abstraction has 369 states and 518 transitions. [2020-12-23 09:39:43,552 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:39:43,552 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 518 transitions. [2020-12-23 09:39:43,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-12-23 09:39:43,553 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:43,553 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:43,553 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-23 09:39:43,553 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:43,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:43,554 INFO L82 PathProgramCache]: Analyzing trace with hash 542276843, now seen corresponding path program 1 times [2020-12-23 09:39:43,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:43,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511316890] [2020-12-23 09:39:43,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:43,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:43,634 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-12-23 09:39:43,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511316890] [2020-12-23 09:39:43,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993224229] [2020-12-23 09:39:43,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 09:39:43,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:43,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-23 09:39:43,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 09:39:43,862 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-12-23 09:39:43,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 09:39:43,862 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-12-23 09:39:43,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007506537] [2020-12-23 09:39:43,865 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 09:39:43,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:43,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 09:39:43,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-23 09:39:43,867 INFO L87 Difference]: Start difference. First operand 369 states and 518 transitions. Second operand 6 states. [2020-12-23 09:39:43,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:43,953 INFO L93 Difference]: Finished difference Result 1429 states and 2036 transitions. [2020-12-23 09:39:43,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 09:39:43,954 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 76 [2020-12-23 09:39:43,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:43,959 INFO L225 Difference]: With dead ends: 1429 [2020-12-23 09:39:43,960 INFO L226 Difference]: Without dead ends: 1079 [2020-12-23 09:39:43,961 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-23 09:39:43,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2020-12-23 09:39:43,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 442. [2020-12-23 09:39:43,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-12-23 09:39:43,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 615 transitions. [2020-12-23 09:39:43,980 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 615 transitions. Word has length 76 [2020-12-23 09:39:43,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:43,980 INFO L481 AbstractCegarLoop]: Abstraction has 442 states and 615 transitions. [2020-12-23 09:39:43,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 09:39:43,980 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 615 transitions. [2020-12-23 09:39:43,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-12-23 09:39:43,981 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:43,981 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:44,195 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-12-23 09:39:44,196 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:44,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:44,197 INFO L82 PathProgramCache]: Analyzing trace with hash 1726325344, now seen corresponding path program 2 times [2020-12-23 09:39:44,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:44,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25067928] [2020-12-23 09:39:44,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:44,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:44,291 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-12-23 09:39:44,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25067928] [2020-12-23 09:39:44,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:39:44,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:39:44,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525279301] [2020-12-23 09:39:44,295 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:39:44,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:44,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:39:44,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:39:44,297 INFO L87 Difference]: Start difference. First operand 442 states and 615 transitions. Second operand 3 states. [2020-12-23 09:39:44,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:44,341 INFO L93 Difference]: Finished difference Result 866 states and 1248 transitions. [2020-12-23 09:39:44,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:39:44,341 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2020-12-23 09:39:44,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:44,344 INFO L225 Difference]: With dead ends: 866 [2020-12-23 09:39:44,344 INFO L226 Difference]: Without dead ends: 566 [2020-12-23 09:39:44,345 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 [2020-12-23 09:39:44,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2020-12-23 09:39:44,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 398. [2020-12-23 09:39:44,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2020-12-23 09:39:44,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 557 transitions. [2020-12-23 09:39:44,387 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 557 transitions. Word has length 103 [2020-12-23 09:39:44,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:44,389 INFO L481 AbstractCegarLoop]: Abstraction has 398 states and 557 transitions. [2020-12-23 09:39:44,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:39:44,389 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 557 transitions. [2020-12-23 09:39:44,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-12-23 09:39:44,396 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:44,397 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:44,397 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-23 09:39:44,397 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:44,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:44,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1846233333, now seen corresponding path program 1 times [2020-12-23 09:39:44,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:44,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330142677] [2020-12-23 09:39:44,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:44,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:44,479 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-12-23 09:39:44,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330142677] [2020-12-23 09:39:44,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:39:44,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:39:44,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329883146] [2020-12-23 09:39:44,481 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:39:44,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:44,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:39:44,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:39:44,482 INFO L87 Difference]: Start difference. First operand 398 states and 557 transitions. Second operand 3 states. [2020-12-23 09:39:44,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:44,512 INFO L93 Difference]: Finished difference Result 574 states and 819 transitions. [2020-12-23 09:39:44,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:39:44,512 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 112 [2020-12-23 09:39:44,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:44,514 INFO L225 Difference]: With dead ends: 574 [2020-12-23 09:39:44,514 INFO L226 Difference]: Without dead ends: 314 [2020-12-23 09:39:44,517 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 [2020-12-23 09:39:44,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-12-23 09:39:44,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2020-12-23 09:39:44,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states. [2020-12-23 09:39:44,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 434 transitions. [2020-12-23 09:39:44,530 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 434 transitions. Word has length 112 [2020-12-23 09:39:44,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:44,531 INFO L481 AbstractCegarLoop]: Abstraction has 314 states and 434 transitions. [2020-12-23 09:39:44,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:39:44,531 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 434 transitions. [2020-12-23 09:39:44,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-12-23 09:39:44,533 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:44,533 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:44,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-23 09:39:44,533 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:44,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:44,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1519105475, now seen corresponding path program 1 times [2020-12-23 09:39:44,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:44,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287049643] [2020-12-23 09:39:44,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:44,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:44,609 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-12-23 09:39:44,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287049643] [2020-12-23 09:39:44,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:39:44,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 09:39:44,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750373588] [2020-12-23 09:39:44,611 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:39:44,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:44,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:39:44,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:39:44,612 INFO L87 Difference]: Start difference. First operand 314 states and 434 transitions. Second operand 4 states. [2020-12-23 09:39:44,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:44,642 INFO L93 Difference]: Finished difference Result 489 states and 695 transitions. [2020-12-23 09:39:44,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:39:44,643 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 115 [2020-12-23 09:39:44,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:44,645 INFO L225 Difference]: With dead ends: 489 [2020-12-23 09:39:44,645 INFO L226 Difference]: Without dead ends: 314 [2020-12-23 09:39:44,646 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:39:44,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-12-23 09:39:44,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2020-12-23 09:39:44,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states. [2020-12-23 09:39:44,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 431 transitions. [2020-12-23 09:39:44,657 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 431 transitions. Word has length 115 [2020-12-23 09:39:44,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:44,658 INFO L481 AbstractCegarLoop]: Abstraction has 314 states and 431 transitions. [2020-12-23 09:39:44,658 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:39:44,658 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 431 transitions. [2020-12-23 09:39:44,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-12-23 09:39:44,659 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:44,660 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:44,660 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-23 09:39:44,660 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:44,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:44,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1299139450, now seen corresponding path program 1 times [2020-12-23 09:39:44,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:44,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228907266] [2020-12-23 09:39:44,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:44,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:44,726 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-12-23 09:39:44,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228907266] [2020-12-23 09:39:44,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:39:44,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:39:44,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121376433] [2020-12-23 09:39:44,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:39:44,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:44,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:39:44,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:39:44,729 INFO L87 Difference]: Start difference. First operand 314 states and 431 transitions. Second operand 3 states. [2020-12-23 09:39:44,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:44,762 INFO L93 Difference]: Finished difference Result 620 states and 893 transitions. [2020-12-23 09:39:44,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:39:44,763 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-12-23 09:39:44,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:44,766 INFO L225 Difference]: With dead ends: 620 [2020-12-23 09:39:44,766 INFO L226 Difference]: Without dead ends: 450 [2020-12-23 09:39:44,767 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 [2020-12-23 09:39:44,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2020-12-23 09:39:44,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 309. [2020-12-23 09:39:44,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2020-12-23 09:39:44,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 423 transitions. [2020-12-23 09:39:44,781 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 423 transitions. Word has length 126 [2020-12-23 09:39:44,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:44,782 INFO L481 AbstractCegarLoop]: Abstraction has 309 states and 423 transitions. [2020-12-23 09:39:44,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:39:44,782 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 423 transitions. [2020-12-23 09:39:44,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-12-23 09:39:44,784 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:44,784 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:44,784 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-23 09:39:44,784 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:44,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:44,785 INFO L82 PathProgramCache]: Analyzing trace with hash -1867178510, now seen corresponding path program 1 times [2020-12-23 09:39:44,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:44,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239853473] [2020-12-23 09:39:44,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:44,871 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-12-23 09:39:44,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239853473] [2020-12-23 09:39:44,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:39:44,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:39:44,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407759185] [2020-12-23 09:39:44,872 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:39:44,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:44,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:39:44,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:39:44,873 INFO L87 Difference]: Start difference. First operand 309 states and 423 transitions. Second operand 3 states. [2020-12-23 09:39:44,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:44,903 INFO L93 Difference]: Finished difference Result 600 states and 863 transitions. [2020-12-23 09:39:44,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:39:44,904 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2020-12-23 09:39:44,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:44,906 INFO L225 Difference]: With dead ends: 600 [2020-12-23 09:39:44,906 INFO L226 Difference]: Without dead ends: 435 [2020-12-23 09:39:44,907 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 [2020-12-23 09:39:44,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2020-12-23 09:39:44,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 305. [2020-12-23 09:39:44,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2020-12-23 09:39:44,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 416 transitions. [2020-12-23 09:39:44,920 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 416 transitions. Word has length 131 [2020-12-23 09:39:44,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:44,920 INFO L481 AbstractCegarLoop]: Abstraction has 305 states and 416 transitions. [2020-12-23 09:39:44,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:39:44,921 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 416 transitions. [2020-12-23 09:39:44,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-12-23 09:39:44,922 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:44,922 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:44,923 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-23 09:39:44,923 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:44,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:44,923 INFO L82 PathProgramCache]: Analyzing trace with hash -818573298, now seen corresponding path program 1 times [2020-12-23 09:39:44,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:44,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271909373] [2020-12-23 09:39:44,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:44,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:45,035 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-12-23 09:39:45,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271909373] [2020-12-23 09:39:45,036 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:39:45,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:39:45,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534341500] [2020-12-23 09:39:45,037 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:39:45,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:45,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:39:45,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:39:45,038 INFO L87 Difference]: Start difference. First operand 305 states and 416 transitions. Second operand 3 states. [2020-12-23 09:39:45,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:45,059 INFO L93 Difference]: Finished difference Result 464 states and 655 transitions. [2020-12-23 09:39:45,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:39:45,059 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2020-12-23 09:39:45,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:45,061 INFO L225 Difference]: With dead ends: 464 [2020-12-23 09:39:45,061 INFO L226 Difference]: Without dead ends: 303 [2020-12-23 09:39:45,062 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 [2020-12-23 09:39:45,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-12-23 09:39:45,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 302. [2020-12-23 09:39:45,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2020-12-23 09:39:45,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 410 transitions. [2020-12-23 09:39:45,074 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 410 transitions. Word has length 137 [2020-12-23 09:39:45,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:45,075 INFO L481 AbstractCegarLoop]: Abstraction has 302 states and 410 transitions. [2020-12-23 09:39:45,075 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:39:45,075 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 410 transitions. [2020-12-23 09:39:45,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-12-23 09:39:45,076 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:45,077 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:45,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-23 09:39:45,077 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:45,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:45,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1051221199, now seen corresponding path program 1 times [2020-12-23 09:39:45,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:45,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275588504] [2020-12-23 09:39:45,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:45,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:45,156 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-12-23 09:39:45,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275588504] [2020-12-23 09:39:45,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:39:45,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:39:45,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112198597] [2020-12-23 09:39:45,158 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:39:45,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:45,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:39:45,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:39:45,158 INFO L87 Difference]: Start difference. First operand 302 states and 410 transitions. Second operand 3 states. [2020-12-23 09:39:45,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:45,172 INFO L93 Difference]: Finished difference Result 509 states and 717 transitions. [2020-12-23 09:39:45,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:39:45,172 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2020-12-23 09:39:45,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:45,174 INFO L225 Difference]: With dead ends: 509 [2020-12-23 09:39:45,175 INFO L226 Difference]: Without dead ends: 351 [2020-12-23 09:39:45,175 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 [2020-12-23 09:39:45,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2020-12-23 09:39:45,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 299. [2020-12-23 09:39:45,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-12-23 09:39:45,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 406 transitions. [2020-12-23 09:39:45,188 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 406 transitions. Word has length 144 [2020-12-23 09:39:45,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:45,189 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 406 transitions. [2020-12-23 09:39:45,189 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:39:45,189 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 406 transitions. [2020-12-23 09:39:45,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-12-23 09:39:45,190 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:45,191 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:45,191 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-23 09:39:45,191 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:45,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:45,192 INFO L82 PathProgramCache]: Analyzing trace with hash 2123182376, now seen corresponding path program 1 times [2020-12-23 09:39:45,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:45,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008252428] [2020-12-23 09:39:45,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:45,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:45,295 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-12-23 09:39:45,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008252428] [2020-12-23 09:39:45,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:39:45,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:39:45,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938329935] [2020-12-23 09:39:45,297 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:39:45,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:45,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:39:45,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:39:45,298 INFO L87 Difference]: Start difference. First operand 299 states and 406 transitions. Second operand 3 states. [2020-12-23 09:39:45,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:45,324 INFO L93 Difference]: Finished difference Result 484 states and 674 transitions. [2020-12-23 09:39:45,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:39:45,325 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2020-12-23 09:39:45,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:45,327 INFO L225 Difference]: With dead ends: 484 [2020-12-23 09:39:45,327 INFO L226 Difference]: Without dead ends: 299 [2020-12-23 09:39:45,328 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:39:45,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2020-12-23 09:39:45,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 299. [2020-12-23 09:39:45,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-12-23 09:39:45,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 403 transitions. [2020-12-23 09:39:45,341 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 403 transitions. Word has length 147 [2020-12-23 09:39:45,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:45,342 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 403 transitions. [2020-12-23 09:39:45,342 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:39:45,342 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 403 transitions. [2020-12-23 09:39:45,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-12-23 09:39:45,344 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:45,344 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:45,344 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-23 09:39:45,344 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:45,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:45,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1291870858, now seen corresponding path program 1 times [2020-12-23 09:39:45,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:45,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985738007] [2020-12-23 09:39:45,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:45,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:45,509 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-23 09:39:45,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985738007] [2020-12-23 09:39:45,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:39:45,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 09:39:45,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214517846] [2020-12-23 09:39:45,511 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:39:45,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:45,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:39:45,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:39:45,512 INFO L87 Difference]: Start difference. First operand 299 states and 403 transitions. Second operand 4 states. [2020-12-23 09:39:45,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:45,606 INFO L93 Difference]: Finished difference Result 636 states and 897 transitions. [2020-12-23 09:39:45,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 09:39:45,606 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2020-12-23 09:39:45,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:45,609 INFO L225 Difference]: With dead ends: 636 [2020-12-23 09:39:45,609 INFO L226 Difference]: Without dead ends: 481 [2020-12-23 09:39:45,610 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:39:45,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2020-12-23 09:39:45,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 385. [2020-12-23 09:39:45,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-12-23 09:39:45,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 525 transitions. [2020-12-23 09:39:45,632 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 525 transitions. Word has length 159 [2020-12-23 09:39:45,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:45,632 INFO L481 AbstractCegarLoop]: Abstraction has 385 states and 525 transitions. [2020-12-23 09:39:45,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:39:45,633 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 525 transitions. [2020-12-23 09:39:45,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-12-23 09:39:45,635 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:45,635 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:45,635 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-23 09:39:45,636 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:45,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:45,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1937549472, now seen corresponding path program 1 times [2020-12-23 09:39:45,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:45,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131104975] [2020-12-23 09:39:45,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:45,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:45,746 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-23 09:39:45,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131104975] [2020-12-23 09:39:45,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:39:45,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:39:45,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109945939] [2020-12-23 09:39:45,748 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:39:45,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:45,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:39:45,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:39:45,749 INFO L87 Difference]: Start difference. First operand 385 states and 525 transitions. Second operand 3 states. [2020-12-23 09:39:45,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:45,795 INFO L93 Difference]: Finished difference Result 799 states and 1134 transitions. [2020-12-23 09:39:45,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:39:45,795 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2020-12-23 09:39:45,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:45,799 INFO L225 Difference]: With dead ends: 799 [2020-12-23 09:39:45,799 INFO L226 Difference]: Without dead ends: 599 [2020-12-23 09:39:45,800 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 [2020-12-23 09:39:45,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2020-12-23 09:39:45,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 459. [2020-12-23 09:39:45,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2020-12-23 09:39:45,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 628 transitions. [2020-12-23 09:39:45,827 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 628 transitions. Word has length 177 [2020-12-23 09:39:45,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:45,827 INFO L481 AbstractCegarLoop]: Abstraction has 459 states and 628 transitions. [2020-12-23 09:39:45,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:39:45,828 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 628 transitions. [2020-12-23 09:39:45,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-12-23 09:39:45,830 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:45,830 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:45,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-23 09:39:45,831 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:45,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:45,831 INFO L82 PathProgramCache]: Analyzing trace with hash -251982915, now seen corresponding path program 1 times [2020-12-23 09:39:45,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:45,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199198529] [2020-12-23 09:39:45,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:45,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:45,970 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-23 09:39:45,970 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199198529] [2020-12-23 09:39:45,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:39:45,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:39:45,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065574598] [2020-12-23 09:39:45,971 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:39:45,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:45,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:39:45,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:39:45,972 INFO L87 Difference]: Start difference. First operand 459 states and 628 transitions. Second operand 3 states. [2020-12-23 09:39:46,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:46,025 INFO L93 Difference]: Finished difference Result 955 states and 1354 transitions. [2020-12-23 09:39:46,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:39:46,026 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2020-12-23 09:39:46,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:46,030 INFO L225 Difference]: With dead ends: 955 [2020-12-23 09:39:46,030 INFO L226 Difference]: Without dead ends: 710 [2020-12-23 09:39:46,031 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 [2020-12-23 09:39:46,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2020-12-23 09:39:46,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 557. [2020-12-23 09:39:46,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 557 states. [2020-12-23 09:39:46,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 766 transitions. [2020-12-23 09:39:46,065 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 766 transitions. Word has length 178 [2020-12-23 09:39:46,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:46,065 INFO L481 AbstractCegarLoop]: Abstraction has 557 states and 766 transitions. [2020-12-23 09:39:46,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:39:46,066 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 766 transitions. [2020-12-23 09:39:46,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-12-23 09:39:46,068 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:46,068 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:46,068 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-23 09:39:46,069 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:46,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:46,069 INFO L82 PathProgramCache]: Analyzing trace with hash -1139374053, now seen corresponding path program 1 times [2020-12-23 09:39:46,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:46,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018822564] [2020-12-23 09:39:46,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:46,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:46,173 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-23 09:39:46,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018822564] [2020-12-23 09:39:46,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:39:46,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:39:46,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374085156] [2020-12-23 09:39:46,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:39:46,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:46,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:39:46,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:39:46,175 INFO L87 Difference]: Start difference. First operand 557 states and 766 transitions. Second operand 3 states. [2020-12-23 09:39:46,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:46,235 INFO L93 Difference]: Finished difference Result 1135 states and 1616 transitions. [2020-12-23 09:39:46,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:39:46,236 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2020-12-23 09:39:46,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:46,241 INFO L225 Difference]: With dead ends: 1135 [2020-12-23 09:39:46,241 INFO L226 Difference]: Without dead ends: 824 [2020-12-23 09:39:46,242 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 [2020-12-23 09:39:46,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2020-12-23 09:39:46,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 643. [2020-12-23 09:39:46,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2020-12-23 09:39:46,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 894 transitions. [2020-12-23 09:39:46,280 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 894 transitions. Word has length 179 [2020-12-23 09:39:46,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:46,280 INFO L481 AbstractCegarLoop]: Abstraction has 643 states and 894 transitions. [2020-12-23 09:39:46,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:39:46,281 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 894 transitions. [2020-12-23 09:39:46,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-12-23 09:39:46,283 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:46,283 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:46,283 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-23 09:39:46,283 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:46,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:46,284 INFO L82 PathProgramCache]: Analyzing trace with hash -920519335, now seen corresponding path program 1 times [2020-12-23 09:39:46,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:46,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221143960] [2020-12-23 09:39:46,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:46,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:46,411 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2020-12-23 09:39:46,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221143960] [2020-12-23 09:39:46,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826773578] [2020-12-23 09:39:46,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 09:39:46,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:46,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 738 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 09:39:46,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 09:39:46,849 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-23 09:39:46,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 09:39:46,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-12-23 09:39:46,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678121536] [2020-12-23 09:39:46,850 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:39:46,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:46,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:39:46,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:39:46,851 INFO L87 Difference]: Start difference. First operand 643 states and 894 transitions. Second operand 3 states. [2020-12-23 09:39:46,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:46,967 INFO L93 Difference]: Finished difference Result 1287 states and 1778 transitions. [2020-12-23 09:39:46,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:39:46,968 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2020-12-23 09:39:46,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:46,975 INFO L225 Difference]: With dead ends: 1287 [2020-12-23 09:39:46,975 INFO L226 Difference]: Without dead ends: 898 [2020-12-23 09:39:46,977 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:39:46,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2020-12-23 09:39:47,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 643. [2020-12-23 09:39:47,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2020-12-23 09:39:47,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 885 transitions. [2020-12-23 09:39:47,022 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 885 transitions. Word has length 179 [2020-12-23 09:39:47,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:47,023 INFO L481 AbstractCegarLoop]: Abstraction has 643 states and 885 transitions. [2020-12-23 09:39:47,023 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:39:47,023 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 885 transitions. [2020-12-23 09:39:47,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-12-23 09:39:47,025 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:47,026 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:47,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2020-12-23 09:39:47,239 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:47,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:47,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1340858399, now seen corresponding path program 1 times [2020-12-23 09:39:47,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:47,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788323030] [2020-12-23 09:39:47,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:47,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:47,375 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2020-12-23 09:39:47,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788323030] [2020-12-23 09:39:47,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629456237] [2020-12-23 09:39:47,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 09:39:47,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:47,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 739 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 09:39:47,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 09:39:47,680 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-23 09:39:47,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 09:39:47,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-12-23 09:39:47,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385595744] [2020-12-23 09:39:47,681 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:39:47,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:47,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:39:47,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:39:47,682 INFO L87 Difference]: Start difference. First operand 643 states and 885 transitions. Second operand 3 states. [2020-12-23 09:39:47,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:47,793 INFO L93 Difference]: Finished difference Result 1519 states and 2130 transitions. [2020-12-23 09:39:47,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:39:47,794 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2020-12-23 09:39:47,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:47,799 INFO L225 Difference]: With dead ends: 1519 [2020-12-23 09:39:47,799 INFO L226 Difference]: Without dead ends: 1130 [2020-12-23 09:39:47,800 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:39:47,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1130 states. [2020-12-23 09:39:47,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1130 to 643. [2020-12-23 09:39:47,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2020-12-23 09:39:47,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 884 transitions. [2020-12-23 09:39:47,845 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 884 transitions. Word has length 180 [2020-12-23 09:39:47,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:47,846 INFO L481 AbstractCegarLoop]: Abstraction has 643 states and 884 transitions. [2020-12-23 09:39:47,846 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:39:47,846 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 884 transitions. [2020-12-23 09:39:47,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-23 09:39:47,848 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:47,848 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:48,061 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 09:39:48,062 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:48,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:48,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1177602269, now seen corresponding path program 1 times [2020-12-23 09:39:48,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:48,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276865041] [2020-12-23 09:39:48,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:48,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:48,242 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2020-12-23 09:39:48,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276865041] [2020-12-23 09:39:48,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233632264] [2020-12-23 09:39:48,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 09:39:48,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:48,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 740 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-23 09:39:48,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 09:39:48,512 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 09:39:48,547 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-23 09:39:48,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 09:39:48,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2020-12-23 09:39:48,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111815420] [2020-12-23 09:39:48,548 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:39:48,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:48,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:39:48,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-12-23 09:39:48,549 INFO L87 Difference]: Start difference. First operand 643 states and 884 transitions. Second operand 4 states. [2020-12-23 09:39:48,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:48,648 INFO L93 Difference]: Finished difference Result 1058 states and 1477 transitions. [2020-12-23 09:39:48,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 09:39:48,649 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 181 [2020-12-23 09:39:48,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:48,655 INFO L225 Difference]: With dead ends: 1058 [2020-12-23 09:39:48,655 INFO L226 Difference]: Without dead ends: 1056 [2020-12-23 09:39:48,656 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-12-23 09:39:48,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2020-12-23 09:39:48,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 645. [2020-12-23 09:39:48,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 645 states. [2020-12-23 09:39:48,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 886 transitions. [2020-12-23 09:39:48,710 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 886 transitions. Word has length 181 [2020-12-23 09:39:48,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:48,710 INFO L481 AbstractCegarLoop]: Abstraction has 645 states and 886 transitions. [2020-12-23 09:39:48,710 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:39:48,710 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 886 transitions. [2020-12-23 09:39:48,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-12-23 09:39:48,713 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:48,713 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:48,926 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2020-12-23 09:39:48,927 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:48,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:48,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1249235817, now seen corresponding path program 1 times [2020-12-23 09:39:48,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:48,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034600310] [2020-12-23 09:39:48,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:48,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:49,185 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-12-23 09:39:49,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034600310] [2020-12-23 09:39:49,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293441224] [2020-12-23 09:39:49,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 09:39:49,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:49,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 759 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-23 09:39:49,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 09:39:49,534 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-12-23 09:39:49,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 09:39:49,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-12-23 09:39:49,535 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465337194] [2020-12-23 09:39:49,535 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-23 09:39:49,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:49,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-23 09:39:49,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-12-23 09:39:49,536 INFO L87 Difference]: Start difference. First operand 645 states and 886 transitions. Second operand 11 states. [2020-12-23 09:39:50,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:50,365 INFO L93 Difference]: Finished difference Result 3897 states and 5558 transitions. [2020-12-23 09:39:50,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-23 09:39:50,366 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 184 [2020-12-23 09:39:50,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:50,383 INFO L225 Difference]: With dead ends: 3897 [2020-12-23 09:39:50,384 INFO L226 Difference]: Without dead ends: 3506 [2020-12-23 09:39:50,387 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=158, Invalid=598, Unknown=0, NotChecked=0, Total=756 [2020-12-23 09:39:50,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3506 states. [2020-12-23 09:39:50,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3506 to 871. [2020-12-23 09:39:50,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 871 states. [2020-12-23 09:39:50,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1176 transitions. [2020-12-23 09:39:50,468 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1176 transitions. Word has length 184 [2020-12-23 09:39:50,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:50,469 INFO L481 AbstractCegarLoop]: Abstraction has 871 states and 1176 transitions. [2020-12-23 09:39:50,469 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-23 09:39:50,469 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1176 transitions. [2020-12-23 09:39:50,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-12-23 09:39:50,471 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:50,472 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:50,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2020-12-23 09:39:50,686 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:50,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:50,687 INFO L82 PathProgramCache]: Analyzing trace with hash -30627861, now seen corresponding path program 1 times [2020-12-23 09:39:50,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:50,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815531673] [2020-12-23 09:39:50,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:50,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:50,772 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-23 09:39:50,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815531673] [2020-12-23 09:39:50,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:39:50,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:39:50,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606604835] [2020-12-23 09:39:50,773 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:39:50,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:50,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:39:50,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:39:50,774 INFO L87 Difference]: Start difference. First operand 871 states and 1176 transitions. Second operand 3 states. [2020-12-23 09:39:50,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:50,918 INFO L93 Difference]: Finished difference Result 1949 states and 2675 transitions. [2020-12-23 09:39:50,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:39:50,919 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 184 [2020-12-23 09:39:50,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:50,926 INFO L225 Difference]: With dead ends: 1949 [2020-12-23 09:39:50,926 INFO L226 Difference]: Without dead ends: 1558 [2020-12-23 09:39:50,927 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 [2020-12-23 09:39:50,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1558 states. [2020-12-23 09:39:50,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1558 to 871. [2020-12-23 09:39:50,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 871 states. [2020-12-23 09:39:50,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1174 transitions. [2020-12-23 09:39:50,996 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1174 transitions. Word has length 184 [2020-12-23 09:39:50,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:50,997 INFO L481 AbstractCegarLoop]: Abstraction has 871 states and 1174 transitions. [2020-12-23 09:39:50,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:39:50,997 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1174 transitions. [2020-12-23 09:39:51,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-12-23 09:39:51,000 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:51,000 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:51,000 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-12-23 09:39:51,001 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:51,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:51,001 INFO L82 PathProgramCache]: Analyzing trace with hash -489339443, now seen corresponding path program 1 times [2020-12-23 09:39:51,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:51,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816376482] [2020-12-23 09:39:51,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:51,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:51,098 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-12-23 09:39:51,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816376482] [2020-12-23 09:39:51,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:39:51,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:39:51,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054610793] [2020-12-23 09:39:51,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:39:51,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:51,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:39:51,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:39:51,100 INFO L87 Difference]: Start difference. First operand 871 states and 1174 transitions. Second operand 3 states. [2020-12-23 09:39:51,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:51,176 INFO L93 Difference]: Finished difference Result 1463 states and 1989 transitions. [2020-12-23 09:39:51,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:39:51,176 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 187 [2020-12-23 09:39:51,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:51,180 INFO L225 Difference]: With dead ends: 1463 [2020-12-23 09:39:51,180 INFO L226 Difference]: Without dead ends: 713 [2020-12-23 09:39:51,181 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 [2020-12-23 09:39:51,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2020-12-23 09:39:51,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 712. [2020-12-23 09:39:51,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 712 states. [2020-12-23 09:39:51,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 941 transitions. [2020-12-23 09:39:51,234 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 941 transitions. Word has length 187 [2020-12-23 09:39:51,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:51,235 INFO L481 AbstractCegarLoop]: Abstraction has 712 states and 941 transitions. [2020-12-23 09:39:51,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:39:51,235 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 941 transitions. [2020-12-23 09:39:51,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-12-23 09:39:51,237 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:51,238 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:51,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-12-23 09:39:51,238 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:51,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:51,239 INFO L82 PathProgramCache]: Analyzing trace with hash 1612175983, now seen corresponding path program 1 times [2020-12-23 09:39:51,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:51,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314327966] [2020-12-23 09:39:51,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:51,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:51,389 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-23 09:39:51,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314327966] [2020-12-23 09:39:51,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:39:51,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 09:39:51,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010671664] [2020-12-23 09:39:51,390 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 09:39:51,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:51,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 09:39:51,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-23 09:39:51,391 INFO L87 Difference]: Start difference. First operand 712 states and 941 transitions. Second operand 7 states. [2020-12-23 09:39:51,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:51,724 INFO L93 Difference]: Finished difference Result 1533 states and 2054 transitions. [2020-12-23 09:39:51,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 09:39:51,725 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 192 [2020-12-23 09:39:51,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:51,731 INFO L225 Difference]: With dead ends: 1533 [2020-12-23 09:39:51,731 INFO L226 Difference]: Without dead ends: 1153 [2020-12-23 09:39:51,732 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-12-23 09:39:51,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2020-12-23 09:39:51,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 831. [2020-12-23 09:39:51,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 831 states. [2020-12-23 09:39:51,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1091 transitions. [2020-12-23 09:39:51,836 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1091 transitions. Word has length 192 [2020-12-23 09:39:51,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:51,837 INFO L481 AbstractCegarLoop]: Abstraction has 831 states and 1091 transitions. [2020-12-23 09:39:51,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 09:39:51,837 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1091 transitions. [2020-12-23 09:39:51,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-12-23 09:39:51,840 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:51,840 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:51,840 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-12-23 09:39:51,840 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:51,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:51,841 INFO L82 PathProgramCache]: Analyzing trace with hash 1609314537, now seen corresponding path program 1 times [2020-12-23 09:39:51,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:51,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878685185] [2020-12-23 09:39:51,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:51,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:51,968 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-23 09:39:51,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878685185] [2020-12-23 09:39:51,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:39:51,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 09:39:51,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500873781] [2020-12-23 09:39:51,969 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 09:39:51,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:51,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 09:39:51,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-23 09:39:51,970 INFO L87 Difference]: Start difference. First operand 831 states and 1091 transitions. Second operand 6 states. [2020-12-23 09:39:52,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:52,219 INFO L93 Difference]: Finished difference Result 2722 states and 3703 transitions. [2020-12-23 09:39:52,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 09:39:52,219 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 198 [2020-12-23 09:39:52,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:52,226 INFO L225 Difference]: With dead ends: 2722 [2020-12-23 09:39:52,227 INFO L226 Difference]: Without dead ends: 2217 [2020-12-23 09:39:52,228 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-23 09:39:52,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2217 states. [2020-12-23 09:39:52,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2217 to 908. [2020-12-23 09:39:52,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 908 states. [2020-12-23 09:39:52,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1189 transitions. [2020-12-23 09:39:52,324 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1189 transitions. Word has length 198 [2020-12-23 09:39:52,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:52,325 INFO L481 AbstractCegarLoop]: Abstraction has 908 states and 1189 transitions. [2020-12-23 09:39:52,325 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 09:39:52,325 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1189 transitions. [2020-12-23 09:39:52,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-12-23 09:39:52,328 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:52,328 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:52,329 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-12-23 09:39:52,329 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:52,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:52,329 INFO L82 PathProgramCache]: Analyzing trace with hash -1927329879, now seen corresponding path program 1 times [2020-12-23 09:39:52,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:52,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823103617] [2020-12-23 09:39:52,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:52,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:52,442 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-23 09:39:52,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823103617] [2020-12-23 09:39:52,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:39:52,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 09:39:52,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054420446] [2020-12-23 09:39:52,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:39:52,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:52,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:39:52,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:39:52,445 INFO L87 Difference]: Start difference. First operand 908 states and 1189 transitions. Second operand 4 states. [2020-12-23 09:39:52,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:52,571 INFO L93 Difference]: Finished difference Result 1533 states and 2031 transitions. [2020-12-23 09:39:52,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:39:52,571 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 198 [2020-12-23 09:39:52,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:52,575 INFO L225 Difference]: With dead ends: 1533 [2020-12-23 09:39:52,575 INFO L226 Difference]: Without dead ends: 878 [2020-12-23 09:39:52,576 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:39:52,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2020-12-23 09:39:52,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 878. [2020-12-23 09:39:52,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 878 states. [2020-12-23 09:39:52,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1137 transitions. [2020-12-23 09:39:52,662 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1137 transitions. Word has length 198 [2020-12-23 09:39:52,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:52,663 INFO L481 AbstractCegarLoop]: Abstraction has 878 states and 1137 transitions. [2020-12-23 09:39:52,663 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:39:52,663 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1137 transitions. [2020-12-23 09:39:52,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-12-23 09:39:52,666 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:52,667 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:52,667 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-12-23 09:39:52,667 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:52,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:52,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1397307461, now seen corresponding path program 1 times [2020-12-23 09:39:52,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:52,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978013012] [2020-12-23 09:39:52,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:52,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:52,943 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-23 09:39:52,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978013012] [2020-12-23 09:39:52,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:39:52,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-23 09:39:52,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247690360] [2020-12-23 09:39:52,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 09:39:52,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:52,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 09:39:52,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-12-23 09:39:52,948 INFO L87 Difference]: Start difference. First operand 878 states and 1137 transitions. Second operand 10 states. [2020-12-23 09:39:53,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:53,917 INFO L93 Difference]: Finished difference Result 2515 states and 3295 transitions. [2020-12-23 09:39:53,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-23 09:39:53,918 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 199 [2020-12-23 09:39:53,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:53,923 INFO L225 Difference]: With dead ends: 2515 [2020-12-23 09:39:53,923 INFO L226 Difference]: Without dead ends: 1956 [2020-12-23 09:39:53,925 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2020-12-23 09:39:53,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1956 states. [2020-12-23 09:39:54,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1956 to 873. [2020-12-23 09:39:54,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 873 states. [2020-12-23 09:39:54,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1129 transitions. [2020-12-23 09:39:54,048 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1129 transitions. Word has length 199 [2020-12-23 09:39:54,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:54,048 INFO L481 AbstractCegarLoop]: Abstraction has 873 states and 1129 transitions. [2020-12-23 09:39:54,048 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 09:39:54,048 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1129 transitions. [2020-12-23 09:39:54,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-12-23 09:39:54,051 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:54,052 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:54,052 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-12-23 09:39:54,052 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:54,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:54,053 INFO L82 PathProgramCache]: Analyzing trace with hash 1175526903, now seen corresponding path program 1 times [2020-12-23 09:39:54,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:54,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546237767] [2020-12-23 09:39:54,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:54,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:54,344 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-23 09:39:54,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546237767] [2020-12-23 09:39:54,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:39:54,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-23 09:39:54,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593112559] [2020-12-23 09:39:54,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 09:39:54,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:54,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 09:39:54,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-12-23 09:39:54,347 INFO L87 Difference]: Start difference. First operand 873 states and 1129 transitions. Second operand 10 states. [2020-12-23 09:39:55,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:55,118 INFO L93 Difference]: Finished difference Result 2499 states and 3274 transitions. [2020-12-23 09:39:55,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-23 09:39:55,118 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 199 [2020-12-23 09:39:55,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:55,123 INFO L225 Difference]: With dead ends: 2499 [2020-12-23 09:39:55,123 INFO L226 Difference]: Without dead ends: 1940 [2020-12-23 09:39:55,125 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2020-12-23 09:39:55,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1940 states. [2020-12-23 09:39:55,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1940 to 861. [2020-12-23 09:39:55,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 861 states. [2020-12-23 09:39:55,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1114 transitions. [2020-12-23 09:39:55,218 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1114 transitions. Word has length 199 [2020-12-23 09:39:55,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:55,218 INFO L481 AbstractCegarLoop]: Abstraction has 861 states and 1114 transitions. [2020-12-23 09:39:55,219 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 09:39:55,219 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1114 transitions. [2020-12-23 09:39:55,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-12-23 09:39:55,222 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:55,222 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:55,222 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-12-23 09:39:55,223 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:55,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:55,223 INFO L82 PathProgramCache]: Analyzing trace with hash 412852015, now seen corresponding path program 1 times [2020-12-23 09:39:55,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:55,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978333040] [2020-12-23 09:39:55,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:55,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:55,348 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2020-12-23 09:39:55,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978333040] [2020-12-23 09:39:55,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:39:55,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 09:39:55,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561679947] [2020-12-23 09:39:55,351 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:39:55,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:55,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:39:55,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:39:55,351 INFO L87 Difference]: Start difference. First operand 861 states and 1114 transitions. Second operand 4 states. [2020-12-23 09:39:55,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:39:55,565 INFO L93 Difference]: Finished difference Result 1649 states and 2159 transitions. [2020-12-23 09:39:55,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 09:39:55,565 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 208 [2020-12-23 09:39:55,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:39:55,568 INFO L225 Difference]: With dead ends: 1649 [2020-12-23 09:39:55,568 INFO L226 Difference]: Without dead ends: 1096 [2020-12-23 09:39:55,569 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:39:55,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2020-12-23 09:39:55,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 835. [2020-12-23 09:39:55,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 835 states. [2020-12-23 09:39:55,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1062 transitions. [2020-12-23 09:39:55,647 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1062 transitions. Word has length 208 [2020-12-23 09:39:55,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:39:55,648 INFO L481 AbstractCegarLoop]: Abstraction has 835 states and 1062 transitions. [2020-12-23 09:39:55,648 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:39:55,648 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1062 transitions. [2020-12-23 09:39:55,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-12-23 09:39:55,652 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:39:55,652 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:39:55,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-12-23 09:39:55,653 INFO L429 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:39:55,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:39:55,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1044588684, now seen corresponding path program 1 times [2020-12-23 09:39:55,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:39:55,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116526435] [2020-12-23 09:39:55,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:39:55,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:55,975 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 2 proven. 41 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-23 09:39:55,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116526435] [2020-12-23 09:39:55,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316520620] [2020-12-23 09:39:55,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 09:39:56,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:39:56,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 990 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-23 09:39:56,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 09:39:56,521 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 9 proven. 34 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-23 09:39:56,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 09:39:56,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 19 [2020-12-23 09:39:56,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922152430] [2020-12-23 09:39:56,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-12-23 09:39:56,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:39:56,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-23 09:39:56,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=305, Unknown=0, NotChecked=0, Total=342 [2020-12-23 09:39:56,524 INFO L87 Difference]: Start difference. First operand 835 states and 1062 transitions. Second operand 19 states. [2020-12-23 09:40:33,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:40:33,428 INFO L93 Difference]: Finished difference Result 20225 states and 26748 transitions. [2020-12-23 09:40:33,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 608 states. [2020-12-23 09:40:33,429 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 234 [2020-12-23 09:40:33,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:40:33,478 INFO L225 Difference]: With dead ends: 20225 [2020-12-23 09:40:33,478 INFO L226 Difference]: Without dead ends: 19665 [2020-12-23 09:40:33,603 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 851 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 622 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180750 ImplicationChecksByTransitivity, 26.7s TimeCoverageRelationStatistics Valid=32021, Invalid=356731, Unknown=0, NotChecked=0, Total=388752 [2020-12-23 09:40:33,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19665 states. [2020-12-23 09:40:34,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19665 to 2333. [2020-12-23 09:40:34,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2333 states. [2020-12-23 09:40:34,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2333 states to 2333 states and 2951 transitions. [2020-12-23 09:40:34,137 INFO L78 Accepts]: Start accepts. Automaton has 2333 states and 2951 transitions. Word has length 234 [2020-12-23 09:40:34,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:40:34,138 INFO L481 AbstractCegarLoop]: Abstraction has 2333 states and 2951 transitions. [2020-12-23 09:40:34,138 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-12-23 09:40:34,138 INFO L276 IsEmpty]: Start isEmpty. Operand 2333 states and 2951 transitions. [2020-12-23 09:40:34,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-12-23 09:40:34,144 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:40:34,144 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:40:34,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2020-12-23 09:40:34,360 INFO L429 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:40:34,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:40:34,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1678618060, now seen corresponding path program 1 times [2020-12-23 09:40:34,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:40:34,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660011548] [2020-12-23 09:40:34,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:40:34,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:40:34,613 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2020-12-23 09:40:34,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660011548] [2020-12-23 09:40:34,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:40:34,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 09:40:34,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089047381] [2020-12-23 09:40:34,615 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:40:34,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:40:34,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:40:34,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:40:34,615 INFO L87 Difference]: Start difference. First operand 2333 states and 2951 transitions. Second operand 5 states. [2020-12-23 09:40:34,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:40:34,939 INFO L93 Difference]: Finished difference Result 4330 states and 5499 transitions. [2020-12-23 09:40:34,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 09:40:34,940 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 234 [2020-12-23 09:40:34,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:40:34,945 INFO L225 Difference]: With dead ends: 4330 [2020-12-23 09:40:34,946 INFO L226 Difference]: Without dead ends: 2333 [2020-12-23 09:40:34,949 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:40:34,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2333 states. [2020-12-23 09:40:35,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2333 to 2333. [2020-12-23 09:40:35,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2333 states. [2020-12-23 09:40:35,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2333 states to 2333 states and 2947 transitions. [2020-12-23 09:40:35,201 INFO L78 Accepts]: Start accepts. Automaton has 2333 states and 2947 transitions. Word has length 234 [2020-12-23 09:40:35,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:40:35,202 INFO L481 AbstractCegarLoop]: Abstraction has 2333 states and 2947 transitions. [2020-12-23 09:40:35,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:40:35,202 INFO L276 IsEmpty]: Start isEmpty. Operand 2333 states and 2947 transitions. [2020-12-23 09:40:35,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-12-23 09:40:35,206 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:40:35,206 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:40:35,206 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-12-23 09:40:35,207 INFO L429 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:40:35,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:40:35,207 INFO L82 PathProgramCache]: Analyzing trace with hash 145978965, now seen corresponding path program 1 times [2020-12-23 09:40:35,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:40:35,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675154515] [2020-12-23 09:40:35,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:40:35,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:40:35,538 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 16 [2020-12-23 09:40:35,788 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 2 proven. 34 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-23 09:40:35,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675154515] [2020-12-23 09:40:35,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39434843] [2020-12-23 09:40:35,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 09:40:36,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:40:36,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 991 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-23 09:40:36,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 09:40:36,512 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 3 proven. 33 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-23 09:40:36,513 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 09:40:36,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 19 [2020-12-23 09:40:36,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956068877] [2020-12-23 09:40:36,514 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-12-23 09:40:36,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:40:36,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-23 09:40:36,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=306, Unknown=0, NotChecked=0, Total=342 [2020-12-23 09:40:36,515 INFO L87 Difference]: Start difference. First operand 2333 states and 2947 transitions. Second operand 19 states. [2020-12-23 09:40:46,958 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2020-12-23 09:41:07,243 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2020-12-23 09:41:07,472 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-12-23 09:41:08,923 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-12-23 09:41:11,502 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-12-23 09:41:12,977 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2020-12-23 09:41:15,670 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2020-12-23 09:41:15,946 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-12-23 09:41:16,313 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-12-23 09:41:16,557 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2020-12-23 09:41:19,849 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-12-23 09:41:20,117 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-12-23 09:41:20,270 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2020-12-23 09:41:21,180 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2020-12-23 09:41:21,349 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2020-12-23 09:41:25,458 WARN L197 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2020-12-23 09:41:37,850 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-12-23 09:41:44,080 WARN L197 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 24 [2020-12-23 09:42:02,606 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-12-23 09:42:04,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:42:04,902 INFO L93 Difference]: Finished difference Result 37502 states and 47833 transitions. [2020-12-23 09:42:04,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 991 states. [2020-12-23 09:42:04,904 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 235 [2020-12-23 09:42:04,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:42:04,976 INFO L225 Difference]: With dead ends: 37502 [2020-12-23 09:42:04,976 INFO L226 Difference]: Without dead ends: 35582 [2020-12-23 09:42:05,285 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1236 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 1005 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491639 ImplicationChecksByTransitivity, 71.5s TimeCoverageRelationStatistics Valid=56416, Invalid=956626, Unknown=0, NotChecked=0, Total=1013042 [2020-12-23 09:42:05,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35582 states. [2020-12-23 09:42:06,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35582 to 4930. [2020-12-23 09:42:06,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4930 states. [2020-12-23 09:42:06,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4930 states to 4930 states and 6261 transitions. [2020-12-23 09:42:06,066 INFO L78 Accepts]: Start accepts. Automaton has 4930 states and 6261 transitions. Word has length 235 [2020-12-23 09:42:06,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:42:06,067 INFO L481 AbstractCegarLoop]: Abstraction has 4930 states and 6261 transitions. [2020-12-23 09:42:06,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-12-23 09:42:06,067 INFO L276 IsEmpty]: Start isEmpty. Operand 4930 states and 6261 transitions. [2020-12-23 09:42:06,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-12-23 09:42:06,076 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:42:06,076 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:42:06,289 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2020-12-23 09:42:06,290 INFO L429 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:42:06,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:42:06,291 INFO L82 PathProgramCache]: Analyzing trace with hash -1737344747, now seen corresponding path program 1 times [2020-12-23 09:42:06,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:42:06,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841158240] [2020-12-23 09:42:06,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:42:06,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:42:06,525 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2020-12-23 09:42:06,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841158240] [2020-12-23 09:42:06,525 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:42:06,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 09:42:06,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185081195] [2020-12-23 09:42:06,526 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:42:06,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:42:06,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:42:06,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:42:06,527 INFO L87 Difference]: Start difference. First operand 4930 states and 6261 transitions. Second operand 5 states. [2020-12-23 09:42:07,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:42:07,264 INFO L93 Difference]: Finished difference Result 9529 states and 12124 transitions. [2020-12-23 09:42:07,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 09:42:07,266 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 235 [2020-12-23 09:42:07,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:42:07,278 INFO L225 Difference]: With dead ends: 9529 [2020-12-23 09:42:07,279 INFO L226 Difference]: Without dead ends: 4954 [2020-12-23 09:42:07,285 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:42:07,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4954 states. [2020-12-23 09:42:08,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4954 to 4948. [2020-12-23 09:42:08,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4948 states. [2020-12-23 09:42:08,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4948 states to 4948 states and 6267 transitions. [2020-12-23 09:42:08,093 INFO L78 Accepts]: Start accepts. Automaton has 4948 states and 6267 transitions. Word has length 235 [2020-12-23 09:42:08,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:42:08,094 INFO L481 AbstractCegarLoop]: Abstraction has 4948 states and 6267 transitions. [2020-12-23 09:42:08,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:42:08,094 INFO L276 IsEmpty]: Start isEmpty. Operand 4948 states and 6267 transitions. [2020-12-23 09:42:08,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-12-23 09:42:08,103 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:42:08,103 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:42:08,103 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-12-23 09:42:08,103 INFO L429 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:42:08,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:42:08,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1466521058, now seen corresponding path program 1 times [2020-12-23 09:42:08,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:42:08,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115072455] [2020-12-23 09:42:08,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:42:08,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:42:08,461 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2020-12-23 09:42:08,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115072455] [2020-12-23 09:42:08,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:42:08,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:42:08,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163078746] [2020-12-23 09:42:08,463 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:42:08,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:42:08,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:42:08,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:42:08,464 INFO L87 Difference]: Start difference. First operand 4948 states and 6267 transitions. Second operand 3 states. [2020-12-23 09:42:09,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:42:09,134 INFO L93 Difference]: Finished difference Result 9801 states and 12396 transitions. [2020-12-23 09:42:09,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:42:09,136 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 235 [2020-12-23 09:42:09,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:42:09,144 INFO L225 Difference]: With dead ends: 9801 [2020-12-23 09:42:09,144 INFO L226 Difference]: Without dead ends: 5227 [2020-12-23 09:42:09,152 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 [2020-12-23 09:42:09,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5227 states. [2020-12-23 09:42:10,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5227 to 4908. [2020-12-23 09:42:10,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4908 states. [2020-12-23 09:42:10,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4908 states to 4908 states and 6027 transitions. [2020-12-23 09:42:10,204 INFO L78 Accepts]: Start accepts. Automaton has 4908 states and 6027 transitions. Word has length 235 [2020-12-23 09:42:10,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:42:10,205 INFO L481 AbstractCegarLoop]: Abstraction has 4908 states and 6027 transitions. [2020-12-23 09:42:10,205 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:42:10,205 INFO L276 IsEmpty]: Start isEmpty. Operand 4908 states and 6027 transitions. [2020-12-23 09:42:10,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-12-23 09:42:10,216 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:42:10,216 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:42:10,217 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-12-23 09:42:10,217 INFO L429 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:42:10,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:42:10,218 INFO L82 PathProgramCache]: Analyzing trace with hash -2072412374, now seen corresponding path program 1 times [2020-12-23 09:42:10,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:42:10,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626604153] [2020-12-23 09:42:10,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:42:10,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:42:10,618 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 2 proven. 41 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-23 09:42:10,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626604153] [2020-12-23 09:42:10,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778853575] [2020-12-23 09:42:10,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 09:42:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:42:10,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 1011 conjuncts, 30 conjunts are in the unsatisfiable core [2020-12-23 09:42:10,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 09:42:11,655 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 35 proven. 13 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2020-12-23 09:42:11,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 09:42:11,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 20 [2020-12-23 09:42:11,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802937185] [2020-12-23 09:42:11,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-12-23 09:42:11,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:42:11,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-12-23 09:42:11,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2020-12-23 09:42:11,657 INFO L87 Difference]: Start difference. First operand 4908 states and 6027 transitions. Second operand 20 states. [2020-12-23 09:42:33,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:42:33,616 INFO L93 Difference]: Finished difference Result 31313 states and 38878 transitions. [2020-12-23 09:42:33,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. [2020-12-23 09:42:33,619 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 241 [2020-12-23 09:42:33,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:42:33,647 INFO L225 Difference]: With dead ends: 31313 [2020-12-23 09:42:33,648 INFO L226 Difference]: Without dead ends: 26934 [2020-12-23 09:42:33,660 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8714 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=3426, Invalid=21380, Unknown=0, NotChecked=0, Total=24806 [2020-12-23 09:42:33,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26934 states. [2020-12-23 09:42:34,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26934 to 5306. [2020-12-23 09:42:34,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5306 states. [2020-12-23 09:42:34,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5306 states to 5306 states and 6503 transitions. [2020-12-23 09:42:34,729 INFO L78 Accepts]: Start accepts. Automaton has 5306 states and 6503 transitions. Word has length 241 [2020-12-23 09:42:34,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:42:34,729 INFO L481 AbstractCegarLoop]: Abstraction has 5306 states and 6503 transitions. [2020-12-23 09:42:34,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-12-23 09:42:34,730 INFO L276 IsEmpty]: Start isEmpty. Operand 5306 states and 6503 transitions. [2020-12-23 09:42:34,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-12-23 09:42:34,741 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:42:34,742 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:42:34,956 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 09:42:34,957 INFO L429 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:42:34,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:42:34,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1717400557, now seen corresponding path program 1 times [2020-12-23 09:42:34,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:42:34,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945282810] [2020-12-23 09:42:34,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:42:34,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:42:35,036 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2020-12-23 09:42:35,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945282810] [2020-12-23 09:42:35,036 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:42:35,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:42:35,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101934883] [2020-12-23 09:42:35,037 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:42:35,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:42:35,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:42:35,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:42:35,038 INFO L87 Difference]: Start difference. First operand 5306 states and 6503 transitions. Second operand 3 states. [2020-12-23 09:42:35,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:42:35,803 INFO L93 Difference]: Finished difference Result 10210 states and 12516 transitions. [2020-12-23 09:42:35,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:42:35,805 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 244 [2020-12-23 09:42:35,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:42:35,811 INFO L225 Difference]: With dead ends: 10210 [2020-12-23 09:42:35,812 INFO L226 Difference]: Without dead ends: 4917 [2020-12-23 09:42:35,818 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 [2020-12-23 09:42:35,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4917 states. [2020-12-23 09:42:36,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4917 to 4917. [2020-12-23 09:42:36,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4917 states. [2020-12-23 09:42:36,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4917 states to 4917 states and 6019 transitions. [2020-12-23 09:42:36,563 INFO L78 Accepts]: Start accepts. Automaton has 4917 states and 6019 transitions. Word has length 244 [2020-12-23 09:42:36,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:42:36,563 INFO L481 AbstractCegarLoop]: Abstraction has 4917 states and 6019 transitions. [2020-12-23 09:42:36,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:42:36,563 INFO L276 IsEmpty]: Start isEmpty. Operand 4917 states and 6019 transitions. [2020-12-23 09:42:36,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-12-23 09:42:36,572 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:42:36,573 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:42:36,573 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-12-23 09:42:36,573 INFO L429 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:42:36,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:42:36,574 INFO L82 PathProgramCache]: Analyzing trace with hash -903132770, now seen corresponding path program 1 times [2020-12-23 09:42:36,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:42:36,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288118111] [2020-12-23 09:42:36,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:42:36,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:42:36,822 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2020-12-23 09:42:36,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288118111] [2020-12-23 09:42:36,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:42:36,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 09:42:36,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54553065] [2020-12-23 09:42:36,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:42:36,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:42:36,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:42:36,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:42:36,825 INFO L87 Difference]: Start difference. First operand 4917 states and 6019 transitions. Second operand 5 states. [2020-12-23 09:42:37,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:42:37,678 INFO L93 Difference]: Finished difference Result 9431 states and 11585 transitions. [2020-12-23 09:42:37,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 09:42:37,680 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 247 [2020-12-23 09:42:37,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:42:37,688 INFO L225 Difference]: With dead ends: 9431 [2020-12-23 09:42:37,688 INFO L226 Difference]: Without dead ends: 4923 [2020-12-23 09:42:37,696 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:42:37,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4923 states. [2020-12-23 09:42:38,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4923 to 4899. [2020-12-23 09:42:38,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4899 states. [2020-12-23 09:42:38,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4899 states to 4899 states and 5995 transitions. [2020-12-23 09:42:38,432 INFO L78 Accepts]: Start accepts. Automaton has 4899 states and 5995 transitions. Word has length 247 [2020-12-23 09:42:38,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:42:38,433 INFO L481 AbstractCegarLoop]: Abstraction has 4899 states and 5995 transitions. [2020-12-23 09:42:38,433 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:42:38,433 INFO L276 IsEmpty]: Start isEmpty. Operand 4899 states and 5995 transitions. [2020-12-23 09:42:38,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-12-23 09:42:38,443 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:42:38,443 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:42:38,443 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-12-23 09:42:38,443 INFO L429 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:42:38,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:42:38,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1542076957, now seen corresponding path program 1 times [2020-12-23 09:42:38,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:42:38,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854606376] [2020-12-23 09:42:38,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:42:38,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:42:39,088 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 2 proven. 34 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-23 09:42:39,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854606376] [2020-12-23 09:42:39,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61817060] [2020-12-23 09:42:39,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 09:42:39,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:42:39,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 1031 conjuncts, 30 conjunts are in the unsatisfiable core [2020-12-23 09:42:39,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 09:42:40,194 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 28 proven. 17 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2020-12-23 09:42:40,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 09:42:40,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 20 [2020-12-23 09:42:40,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151055054] [2020-12-23 09:42:40,196 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-12-23 09:42:40,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:42:40,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-12-23 09:42:40,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=340, Unknown=0, NotChecked=0, Total=380 [2020-12-23 09:42:40,197 INFO L87 Difference]: Start difference. First operand 4899 states and 5995 transitions. Second operand 20 states. [2020-12-23 09:42:57,001 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 32 [2020-12-23 09:42:57,532 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 24 [2020-12-23 09:42:58,424 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 28 [2020-12-23 09:42:59,310 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 34 [2020-12-23 09:43:04,724 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 30 [2020-12-23 09:43:07,110 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2020-12-23 09:43:07,956 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 28 [2020-12-23 09:43:09,508 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 32 [2020-12-23 09:43:10,933 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-12-23 09:43:19,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:43:19,342 INFO L93 Difference]: Finished difference Result 45340 states and 56704 transitions. [2020-12-23 09:43:19,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2020-12-23 09:43:19,345 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 248 [2020-12-23 09:43:19,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:43:19,387 INFO L225 Difference]: With dead ends: 45340 [2020-12-23 09:43:19,387 INFO L226 Difference]: Without dead ends: 40961 [2020-12-23 09:43:19,399 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 208 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17618 ImplicationChecksByTransitivity, 17.0s TimeCoverageRelationStatistics Valid=5460, Invalid=38430, Unknown=0, NotChecked=0, Total=43890 [2020-12-23 09:43:19,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40961 states. [2020-12-23 09:43:20,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40961 to 4935. [2020-12-23 09:43:20,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4935 states. [2020-12-23 09:43:20,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4935 states to 4935 states and 6038 transitions. [2020-12-23 09:43:20,340 INFO L78 Accepts]: Start accepts. Automaton has 4935 states and 6038 transitions. Word has length 248 [2020-12-23 09:43:20,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:43:20,341 INFO L481 AbstractCegarLoop]: Abstraction has 4935 states and 6038 transitions. [2020-12-23 09:43:20,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-12-23 09:43:20,341 INFO L276 IsEmpty]: Start isEmpty. Operand 4935 states and 6038 transitions. [2020-12-23 09:43:20,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-12-23 09:43:20,348 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:43:20,349 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:43:20,562 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 09:43:20,563 INFO L429 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:43:20,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:43:20,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1074559157, now seen corresponding path program 1 times [2020-12-23 09:43:20,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:43:20,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516807966] [2020-12-23 09:43:20,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:43:20,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:43:20,818 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2020-12-23 09:43:20,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516807966] [2020-12-23 09:43:20,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:43:20,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 09:43:20,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599872886] [2020-12-23 09:43:20,821 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:43:20,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:43:20,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:43:20,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:43:20,822 INFO L87 Difference]: Start difference. First operand 4935 states and 6038 transitions. Second operand 5 states. [2020-12-23 09:43:21,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:43:21,771 INFO L93 Difference]: Finished difference Result 9551 states and 11718 transitions. [2020-12-23 09:43:21,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 09:43:21,774 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 255 [2020-12-23 09:43:21,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:43:21,778 INFO L225 Difference]: With dead ends: 9551 [2020-12-23 09:43:21,778 INFO L226 Difference]: Without dead ends: 4971 [2020-12-23 09:43:21,780 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:43:21,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4971 states. [2020-12-23 09:43:22,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4971 to 4899. [2020-12-23 09:43:22,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4899 states. [2020-12-23 09:43:22,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4899 states to 4899 states and 5990 transitions. [2020-12-23 09:43:22,447 INFO L78 Accepts]: Start accepts. Automaton has 4899 states and 5990 transitions. Word has length 255 [2020-12-23 09:43:22,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:43:22,448 INFO L481 AbstractCegarLoop]: Abstraction has 4899 states and 5990 transitions. [2020-12-23 09:43:22,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:43:22,450 INFO L276 IsEmpty]: Start isEmpty. Operand 4899 states and 5990 transitions. [2020-12-23 09:43:22,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-12-23 09:43:22,457 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:43:22,457 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:43:22,457 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-12-23 09:43:22,457 INFO L429 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:43:22,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:43:22,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1736479699, now seen corresponding path program 1 times [2020-12-23 09:43:22,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:43:22,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5733926] [2020-12-23 09:43:22,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:43:22,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:43:22,903 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-23 09:43:22,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5733926] [2020-12-23 09:43:22,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478316526] [2020-12-23 09:43:22,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 09:43:23,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:43:23,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 1052 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-23 09:43:23,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 09:43:23,953 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-23 09:43:23,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 09:43:23,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 9 [2020-12-23 09:43:23,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217646195] [2020-12-23 09:43:23,954 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 09:43:23,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:43:23,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 09:43:23,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-23 09:43:23,955 INFO L87 Difference]: Start difference. First operand 4899 states and 5990 transitions. Second operand 9 states. [2020-12-23 09:43:29,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:43:29,734 INFO L93 Difference]: Finished difference Result 27040 states and 33455 transitions. [2020-12-23 09:43:29,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-12-23 09:43:29,737 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 255 [2020-12-23 09:43:29,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:43:29,757 INFO L225 Difference]: With dead ends: 27040 [2020-12-23 09:43:29,757 INFO L226 Difference]: Without dead ends: 22691 [2020-12-23 09:43:29,764 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 262 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=340, Invalid=1382, Unknown=0, NotChecked=0, Total=1722 [2020-12-23 09:43:29,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22691 states. [2020-12-23 09:43:31,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22691 to 12733. [2020-12-23 09:43:31,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12733 states. [2020-12-23 09:43:31,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12733 states to 12733 states and 15607 transitions. [2020-12-23 09:43:31,670 INFO L78 Accepts]: Start accepts. Automaton has 12733 states and 15607 transitions. Word has length 255 [2020-12-23 09:43:31,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:43:31,670 INFO L481 AbstractCegarLoop]: Abstraction has 12733 states and 15607 transitions. [2020-12-23 09:43:31,670 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 09:43:31,671 INFO L276 IsEmpty]: Start isEmpty. Operand 12733 states and 15607 transitions. [2020-12-23 09:43:31,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-12-23 09:43:31,683 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:43:31,683 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:43:31,884 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2020-12-23 09:43:31,887 INFO L429 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:43:31,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:43:31,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1424134903, now seen corresponding path program 1 times [2020-12-23 09:43:31,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:43:31,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745853285] [2020-12-23 09:43:31,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:43:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:43:32,471 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 2 proven. 47 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-23 09:43:32,473 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745853285] [2020-12-23 09:43:32,473 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727401576] [2020-12-23 09:43:32,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 09:43:32,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:43:32,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 1053 conjuncts, 30 conjunts are in the unsatisfiable core [2020-12-23 09:43:32,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 09:43:33,728 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 41 proven. 21 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-12-23 09:43:33,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 09:43:33,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 20 [2020-12-23 09:43:33,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393794015] [2020-12-23 09:43:33,729 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-12-23 09:43:33,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:43:33,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-12-23 09:43:33,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2020-12-23 09:43:33,730 INFO L87 Difference]: Start difference. First operand 12733 states and 15607 transitions. Second operand 20 states.