/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-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 20:41:00,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 20:41:00,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 20:41:00,757 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 20:41:00,758 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 20:41:00,759 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 20:41:00,761 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 20:41:00,764 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 20:41:00,766 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 20:41:00,767 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 20:41:00,768 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 20:41:00,770 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 20:41:00,771 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 20:41:00,772 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 20:41:00,773 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 20:41:00,775 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 20:41:00,776 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 20:41:00,777 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 20:41:00,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 20:41:00,782 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 20:41:00,784 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 20:41:00,787 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 20:41:00,789 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 20:41:00,792 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 20:41:00,798 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 20:41:00,799 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 20:41:00,799 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 20:41:00,805 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 20:41:00,805 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 20:41:00,807 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 20:41:00,811 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 20:41:00,812 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 20:41:00,813 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 20:41:00,816 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 20:41:00,828 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 20:41:00,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 20:41:00,830 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 20:41:00,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 20:41:00,831 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 20:41:00,832 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 20:41:00,833 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 20:41:00,834 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 20:41:00,886 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 20:41:00,886 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 20:41:00,890 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 20:41:00,891 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 20:41:00,891 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 20:41:00,891 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 20:41:00,891 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 20:41:00,892 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 20:41:00,892 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 20:41:00,892 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 20:41:00,893 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 20:41:00,893 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 20:41:00,894 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 20:41:00,894 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 20:41:00,894 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 20:41:00,894 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 20:41:00,894 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 20:41:00,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 20:41:00,895 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 20:41:00,895 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 20:41:00,895 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 20:41:00,896 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 20:41:00,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 20:41:00,896 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 20:41:00,896 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 20:41:00,896 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 20:41:01,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 20:41:01,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 20:41:01,361 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 20:41:01,362 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 20:41:01,363 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 20:41:01,364 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2021-01-06 20:41:01,451 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/4c92493b0/5219364187dd425ca2746a0147719585/FLAGf02f2ff38 [2021-01-06 20:41:02,088 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 20:41:02,089 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2021-01-06 20:41:02,109 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/4c92493b0/5219364187dd425ca2746a0147719585/FLAGf02f2ff38 [2021-01-06 20:41:02,420 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/4c92493b0/5219364187dd425ca2746a0147719585 [2021-01-06 20:41:02,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 20:41:02,426 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 20:41:02,429 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 20:41:02,429 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 20:41:02,433 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 20:41:02,434 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 08:41:02" (1/1) ... [2021-01-06 20:41:02,440 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e318d95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:41:02, skipping insertion in model container [2021-01-06 20:41:02,440 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 08:41:02" (1/1) ... [2021-01-06 20:41:02,449 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 20:41:02,493 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_10566~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_10664~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~1,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_10824~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_2~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~1,] [2021-01-06 20:41:02,730 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-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[6703,6716] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~2,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~2,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] [2021-01-06 20:41:02,822 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 20:41:02,840 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_10566~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_10664~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~1,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_10824~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_2~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~1,] [2021-01-06 20:41:02,903 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-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[6703,6716] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~2,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~2,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] [2021-01-06 20:41:02,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 20:41:02,970 INFO L208 MainTranslator]: Completed translation [2021-01-06 20:41:02,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:41:02 WrapperNode [2021-01-06 20:41:02,971 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 20:41:02,972 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 20:41:02,973 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 20:41:02,973 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 20:41:02,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:41:02" (1/1) ... [2021-01-06 20:41:02,993 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:41:02" (1/1) ... [2021-01-06 20:41:03,064 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 20:41:03,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 20:41:03,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 20:41:03,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 20:41:03,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:41:02" (1/1) ... [2021-01-06 20:41:03,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:41:02" (1/1) ... [2021-01-06 20:41:03,092 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:41:02" (1/1) ... [2021-01-06 20:41:03,093 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:41:02" (1/1) ... [2021-01-06 20:41:03,114 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:41:02" (1/1) ... [2021-01-06 20:41:03,122 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:41:02" (1/1) ... [2021-01-06 20:41:03,125 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:41:02" (1/1) ... [2021-01-06 20:41:03,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 20:41:03,131 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 20:41:03,131 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 20:41:03,131 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 20:41:03,132 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:41:02" (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 [2021-01-06 20:41:03,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 20:41:03,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 20:41:03,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 20:41:03,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 20:41:04,201 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 20:41:04,201 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-01-06 20:41:04,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 08:41:04 BoogieIcfgContainer [2021-01-06 20:41:04,204 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 20:41:04,206 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 20:41:04,206 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 20:41:04,210 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 20:41:04,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 08:41:02" (1/3) ... [2021-01-06 20:41:04,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4da5aa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 08:41:04, skipping insertion in model container [2021-01-06 20:41:04,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:41:02" (2/3) ... [2021-01-06 20:41:04,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4da5aa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 08:41:04, skipping insertion in model container [2021-01-06 20:41:04,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 08:41:04" (3/3) ... [2021-01-06 20:41:04,213 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2021-01-06 20:41:04,220 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 20:41:04,226 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 20:41:04,245 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-01-06 20:41:04,274 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 20:41:04,274 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 20:41:04,274 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 20:41:04,275 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 20:41:04,275 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 20:41:04,275 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 20:41:04,275 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 20:41:04,275 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 20:41:04,295 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states. [2021-01-06 20:41:04,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-01-06 20:41:04,305 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:41:04,306 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:41:04,306 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:41:04,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:41:04,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1270648051, now seen corresponding path program 1 times [2021-01-06 20:41:04,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:41:04,323 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334200456] [2021-01-06 20:41:04,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:41:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:41:04,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:41:04,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334200456] [2021-01-06 20:41:04,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:41:04,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:41:04,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756015742] [2021-01-06 20:41:04,717 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:41:04,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:41:04,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:41:04,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:41:04,734 INFO L87 Difference]: Start difference. First operand 170 states. Second operand 3 states. [2021-01-06 20:41:04,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:41:04,880 INFO L93 Difference]: Finished difference Result 345 states and 567 transitions. [2021-01-06 20:41:04,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:41:04,885 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2021-01-06 20:41:04,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:41:04,912 INFO L225 Difference]: With dead ends: 345 [2021-01-06 20:41:04,913 INFO L226 Difference]: Without dead ends: 260 [2021-01-06 20:41:04,916 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 [2021-01-06 20:41:04,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2021-01-06 20:41:04,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 258. [2021-01-06 20:41:04,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2021-01-06 20:41:04,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 388 transitions. [2021-01-06 20:41:04,994 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 388 transitions. Word has length 63 [2021-01-06 20:41:04,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:41:04,996 INFO L481 AbstractCegarLoop]: Abstraction has 258 states and 388 transitions. [2021-01-06 20:41:04,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:41:04,996 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 388 transitions. [2021-01-06 20:41:04,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-01-06 20:41:04,999 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:41:04,999 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:41:05,000 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 20:41:05,000 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:41:05,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:41:05,001 INFO L82 PathProgramCache]: Analyzing trace with hash 473041692, now seen corresponding path program 1 times [2021-01-06 20:41:05,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:41:05,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610218270] [2021-01-06 20:41:05,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:41:05,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:41:05,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:41:05,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610218270] [2021-01-06 20:41:05,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:41:05,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-06 20:41:05,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23611540] [2021-01-06 20:41:05,300 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 20:41:05,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:41:05,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 20:41:05,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-01-06 20:41:05,302 INFO L87 Difference]: Start difference. First operand 258 states and 388 transitions. Second operand 6 states. [2021-01-06 20:41:05,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:41:05,683 INFO L93 Difference]: Finished difference Result 958 states and 1480 transitions. [2021-01-06 20:41:05,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 20:41:05,684 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2021-01-06 20:41:05,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:41:05,691 INFO L225 Difference]: With dead ends: 958 [2021-01-06 20:41:05,691 INFO L226 Difference]: Without dead ends: 758 [2021-01-06 20:41:05,694 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-01-06 20:41:05,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2021-01-06 20:41:05,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 752. [2021-01-06 20:41:05,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 752 states. [2021-01-06 20:41:05,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1152 transitions. [2021-01-06 20:41:05,822 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1152 transitions. Word has length 64 [2021-01-06 20:41:05,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:41:05,822 INFO L481 AbstractCegarLoop]: Abstraction has 752 states and 1152 transitions. [2021-01-06 20:41:05,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 20:41:05,823 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1152 transitions. [2021-01-06 20:41:05,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-01-06 20:41:05,827 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:41:05,827 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:41:05,828 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 20:41:05,828 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:41:05,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:41:05,829 INFO L82 PathProgramCache]: Analyzing trace with hash -222648813, now seen corresponding path program 1 times [2021-01-06 20:41:05,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:41:05,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826971573] [2021-01-06 20:41:05,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:41:05,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:41:06,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:41:06,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826971573] [2021-01-06 20:41:06,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:41:06,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 20:41:06,082 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255147722] [2021-01-06 20:41:06,082 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 20:41:06,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:41:06,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 20:41:06,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-01-06 20:41:06,088 INFO L87 Difference]: Start difference. First operand 752 states and 1152 transitions. Second operand 6 states. [2021-01-06 20:41:06,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:41:06,621 INFO L93 Difference]: Finished difference Result 2516 states and 3915 transitions. [2021-01-06 20:41:06,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 20:41:06,622 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2021-01-06 20:41:06,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:41:06,635 INFO L225 Difference]: With dead ends: 2516 [2021-01-06 20:41:06,636 INFO L226 Difference]: Without dead ends: 1810 [2021-01-06 20:41:06,641 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-01-06 20:41:06,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1810 states. [2021-01-06 20:41:06,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1810 to 1806. [2021-01-06 20:41:06,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1806 states. [2021-01-06 20:41:06,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1806 states to 1806 states and 2801 transitions. [2021-01-06 20:41:06,804 INFO L78 Accepts]: Start accepts. Automaton has 1806 states and 2801 transitions. Word has length 65 [2021-01-06 20:41:06,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:41:06,812 INFO L481 AbstractCegarLoop]: Abstraction has 1806 states and 2801 transitions. [2021-01-06 20:41:06,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 20:41:06,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1806 states and 2801 transitions. [2021-01-06 20:41:06,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-01-06 20:41:06,822 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:41:06,822 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:41:06,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 20:41:06,823 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:41:06,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:41:06,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1106030069, now seen corresponding path program 1 times [2021-01-06 20:41:06,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:41:06,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266336976] [2021-01-06 20:41:06,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:41:06,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:41:07,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:41:07,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266336976] [2021-01-06 20:41:07,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:41:07,003 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 20:41:07,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133839880] [2021-01-06 20:41:07,004 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 20:41:07,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:41:07,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 20:41:07,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-01-06 20:41:07,005 INFO L87 Difference]: Start difference. First operand 1806 states and 2801 transitions. Second operand 6 states. [2021-01-06 20:41:07,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:41:07,675 INFO L93 Difference]: Finished difference Result 6246 states and 9774 transitions. [2021-01-06 20:41:07,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 20:41:07,675 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2021-01-06 20:41:07,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:41:07,701 INFO L225 Difference]: With dead ends: 6246 [2021-01-06 20:41:07,702 INFO L226 Difference]: Without dead ends: 4536 [2021-01-06 20:41:07,706 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-01-06 20:41:07,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4536 states. [2021-01-06 20:41:08,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4536 to 4126. [2021-01-06 20:41:08,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4126 states. [2021-01-06 20:41:08,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4126 states to 4126 states and 6424 transitions. [2021-01-06 20:41:08,074 INFO L78 Accepts]: Start accepts. Automaton has 4126 states and 6424 transitions. Word has length 65 [2021-01-06 20:41:08,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:41:08,075 INFO L481 AbstractCegarLoop]: Abstraction has 4126 states and 6424 transitions. [2021-01-06 20:41:08,075 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 20:41:08,075 INFO L276 IsEmpty]: Start isEmpty. Operand 4126 states and 6424 transitions. [2021-01-06 20:41:08,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-01-06 20:41:08,077 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:41:08,078 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:41:08,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 20:41:08,078 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:41:08,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:41:08,079 INFO L82 PathProgramCache]: Analyzing trace with hash 244768548, now seen corresponding path program 1 times [2021-01-06 20:41:08,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:41:08,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416255471] [2021-01-06 20:41:08,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:41:08,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:41:08,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:41:08,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416255471] [2021-01-06 20:41:08,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:41:08,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 20:41:08,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274061033] [2021-01-06 20:41:08,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 20:41:08,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:41:08,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 20:41:08,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-01-06 20:41:08,189 INFO L87 Difference]: Start difference. First operand 4126 states and 6424 transitions. Second operand 6 states. [2021-01-06 20:41:09,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:41:09,329 INFO L93 Difference]: Finished difference Result 15475 states and 24159 transitions. [2021-01-06 20:41:09,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 20:41:09,330 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2021-01-06 20:41:09,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:41:09,440 INFO L225 Difference]: With dead ends: 15475 [2021-01-06 20:41:09,441 INFO L226 Difference]: Without dead ends: 11418 [2021-01-06 20:41:09,452 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-01-06 20:41:09,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11418 states. [2021-01-06 20:41:10,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11418 to 11414. [2021-01-06 20:41:10,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11414 states. [2021-01-06 20:41:10,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11414 states to 11414 states and 17736 transitions. [2021-01-06 20:41:10,384 INFO L78 Accepts]: Start accepts. Automaton has 11414 states and 17736 transitions. Word has length 65 [2021-01-06 20:41:10,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:41:10,385 INFO L481 AbstractCegarLoop]: Abstraction has 11414 states and 17736 transitions. [2021-01-06 20:41:10,385 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 20:41:10,385 INFO L276 IsEmpty]: Start isEmpty. Operand 11414 states and 17736 transitions. [2021-01-06 20:41:10,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-01-06 20:41:10,389 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:41:10,389 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:41:10,389 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 20:41:10,390 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:41:10,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:41:10,391 INFO L82 PathProgramCache]: Analyzing trace with hash 2050472616, now seen corresponding path program 1 times [2021-01-06 20:41:10,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:41:10,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161466677] [2021-01-06 20:41:10,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:41:10,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:41:10,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:41:10,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161466677] [2021-01-06 20:41:10,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:41:10,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 20:41:10,535 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289680457] [2021-01-06 20:41:10,536 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 20:41:10,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:41:10,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 20:41:10,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 20:41:10,538 INFO L87 Difference]: Start difference. First operand 11414 states and 17736 transitions. Second operand 5 states. [2021-01-06 20:41:11,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:41:11,985 INFO L93 Difference]: Finished difference Result 21040 states and 32458 transitions. [2021-01-06 20:41:11,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 20:41:11,986 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 66 [2021-01-06 20:41:11,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:41:12,066 INFO L225 Difference]: With dead ends: 21040 [2021-01-06 20:41:12,066 INFO L226 Difference]: Without dead ends: 21038 [2021-01-06 20:41:12,074 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-01-06 20:41:12,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21038 states. [2021-01-06 20:41:13,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21038 to 11612. [2021-01-06 20:41:13,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11612 states. [2021-01-06 20:41:13,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11612 states to 11612 states and 17934 transitions. [2021-01-06 20:41:13,274 INFO L78 Accepts]: Start accepts. Automaton has 11612 states and 17934 transitions. Word has length 66 [2021-01-06 20:41:13,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:41:13,276 INFO L481 AbstractCegarLoop]: Abstraction has 11612 states and 17934 transitions. [2021-01-06 20:41:13,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 20:41:13,276 INFO L276 IsEmpty]: Start isEmpty. Operand 11612 states and 17934 transitions. [2021-01-06 20:41:13,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-01-06 20:41:13,279 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:41:13,279 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:41:13,280 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-06 20:41:13,280 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:41:13,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:41:13,284 INFO L82 PathProgramCache]: Analyzing trace with hash -598564162, now seen corresponding path program 1 times [2021-01-06 20:41:13,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:41:13,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332499702] [2021-01-06 20:41:13,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:41:13,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:41:13,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:41:13,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332499702] [2021-01-06 20:41:13,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:41:13,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-06 20:41:13,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497855694] [2021-01-06 20:41:13,673 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-06 20:41:13,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:41:13,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-06 20:41:13,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-01-06 20:41:13,674 INFO L87 Difference]: Start difference. First operand 11612 states and 17934 transitions. Second operand 10 states. [2021-01-06 20:41:19,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:41:19,964 INFO L93 Difference]: Finished difference Result 70277 states and 108533 transitions. [2021-01-06 20:41:19,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-01-06 20:41:19,965 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 67 [2021-01-06 20:41:19,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:41:20,159 INFO L225 Difference]: With dead ends: 70277 [2021-01-06 20:41:20,159 INFO L226 Difference]: Without dead ends: 62835 [2021-01-06 20:41:20,192 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 461 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=391, Invalid=1249, Unknown=0, NotChecked=0, Total=1640 [2021-01-06 20:41:20,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62835 states. [2021-01-06 20:41:21,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62835 to 11725. [2021-01-06 20:41:21,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11725 states. [2021-01-06 20:41:21,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11725 states to 11725 states and 18079 transitions. [2021-01-06 20:41:21,705 INFO L78 Accepts]: Start accepts. Automaton has 11725 states and 18079 transitions. Word has length 67 [2021-01-06 20:41:21,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:41:21,706 INFO L481 AbstractCegarLoop]: Abstraction has 11725 states and 18079 transitions. [2021-01-06 20:41:21,706 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-06 20:41:21,706 INFO L276 IsEmpty]: Start isEmpty. Operand 11725 states and 18079 transitions. [2021-01-06 20:41:21,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-01-06 20:41:21,709 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:41:21,710 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:41:21,710 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-06 20:41:21,710 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:41:21,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:41:21,711 INFO L82 PathProgramCache]: Analyzing trace with hash -354598274, now seen corresponding path program 1 times [2021-01-06 20:41:21,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:41:21,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768078403] [2021-01-06 20:41:21,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:41:21,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:41:21,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:41:21,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768078403] [2021-01-06 20:41:21,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:41:21,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-06 20:41:21,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812654779] [2021-01-06 20:41:21,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-06 20:41:21,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:41:21,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-06 20:41:21,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-01-06 20:41:21,962 INFO L87 Difference]: Start difference. First operand 11725 states and 18079 transitions. Second operand 10 states. [2021-01-06 20:41:27,797 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 21 [2021-01-06 20:41:28,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:41:28,092 INFO L93 Difference]: Finished difference Result 46982 states and 72196 transitions. [2021-01-06 20:41:28,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-01-06 20:41:28,093 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 67 [2021-01-06 20:41:28,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:41:28,212 INFO L225 Difference]: With dead ends: 46982 [2021-01-06 20:41:28,213 INFO L226 Difference]: Without dead ends: 44518 [2021-01-06 20:41:28,229 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=319, Invalid=871, Unknown=0, NotChecked=0, Total=1190 [2021-01-06 20:41:28,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44518 states. [2021-01-06 20:41:29,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44518 to 11725. [2021-01-06 20:41:29,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11725 states. [2021-01-06 20:41:29,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11725 states to 11725 states and 18077 transitions. [2021-01-06 20:41:29,463 INFO L78 Accepts]: Start accepts. Automaton has 11725 states and 18077 transitions. Word has length 67 [2021-01-06 20:41:29,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:41:29,463 INFO L481 AbstractCegarLoop]: Abstraction has 11725 states and 18077 transitions. [2021-01-06 20:41:29,463 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-06 20:41:29,463 INFO L276 IsEmpty]: Start isEmpty. Operand 11725 states and 18077 transitions. [2021-01-06 20:41:29,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-01-06 20:41:29,466 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:41:29,467 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:41:29,467 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-06 20:41:29,467 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:41:29,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:41:29,467 INFO L82 PathProgramCache]: Analyzing trace with hash 878399134, now seen corresponding path program 1 times [2021-01-06 20:41:29,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:41:29,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228518146] [2021-01-06 20:41:29,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:41:29,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:41:29,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:41:29,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228518146] [2021-01-06 20:41:29,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:41:29,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-06 20:41:29,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207674107] [2021-01-06 20:41:29,687 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-06 20:41:29,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:41:29,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-06 20:41:29,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-01-06 20:41:29,688 INFO L87 Difference]: Start difference. First operand 11725 states and 18077 transitions. Second operand 10 states. [2021-01-06 20:41:37,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:41:37,480 INFO L93 Difference]: Finished difference Result 54650 states and 84169 transitions. [2021-01-06 20:41:37,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-01-06 20:41:37,481 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 67 [2021-01-06 20:41:37,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:41:37,594 INFO L225 Difference]: With dead ends: 54650 [2021-01-06 20:41:37,594 INFO L226 Difference]: Without dead ends: 50226 [2021-01-06 20:41:37,616 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=391, Invalid=1249, Unknown=0, NotChecked=0, Total=1640 [2021-01-06 20:41:37,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50226 states. [2021-01-06 20:41:39,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50226 to 11942. [2021-01-06 20:41:39,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11942 states. [2021-01-06 20:41:39,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11942 states to 11942 states and 18355 transitions. [2021-01-06 20:41:39,300 INFO L78 Accepts]: Start accepts. Automaton has 11942 states and 18355 transitions. Word has length 67 [2021-01-06 20:41:39,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:41:39,300 INFO L481 AbstractCegarLoop]: Abstraction has 11942 states and 18355 transitions. [2021-01-06 20:41:39,301 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-06 20:41:39,301 INFO L276 IsEmpty]: Start isEmpty. Operand 11942 states and 18355 transitions. [2021-01-06 20:41:39,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-01-06 20:41:39,304 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:41:39,305 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:41:39,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-06 20:41:39,305 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:41:39,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:41:39,306 INFO L82 PathProgramCache]: Analyzing trace with hash -1495323364, now seen corresponding path program 1 times [2021-01-06 20:41:39,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:41:39,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803025560] [2021-01-06 20:41:39,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:41:39,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:41:39,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:41:39,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803025560] [2021-01-06 20:41:39,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:41:39,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 20:41:39,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735202326] [2021-01-06 20:41:39,375 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 20:41:39,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:41:39,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 20:41:39,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 20:41:39,376 INFO L87 Difference]: Start difference. First operand 11942 states and 18355 transitions. Second operand 5 states. [2021-01-06 20:41:41,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:41:41,773 INFO L93 Difference]: Finished difference Result 32581 states and 50133 transitions. [2021-01-06 20:41:41,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 20:41:41,774 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 67 [2021-01-06 20:41:41,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:41:41,805 INFO L225 Difference]: With dead ends: 32581 [2021-01-06 20:41:41,805 INFO L226 Difference]: Without dead ends: 20687 [2021-01-06 20:41:41,826 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-01-06 20:41:41,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20687 states. [2021-01-06 20:41:44,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20687 to 20685. [2021-01-06 20:41:44,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20685 states. [2021-01-06 20:41:44,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20685 states to 20685 states and 31632 transitions. [2021-01-06 20:41:44,259 INFO L78 Accepts]: Start accepts. Automaton has 20685 states and 31632 transitions. Word has length 67 [2021-01-06 20:41:44,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:41:44,259 INFO L481 AbstractCegarLoop]: Abstraction has 20685 states and 31632 transitions. [2021-01-06 20:41:44,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 20:41:44,260 INFO L276 IsEmpty]: Start isEmpty. Operand 20685 states and 31632 transitions. [2021-01-06 20:41:44,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-01-06 20:41:44,265 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:41:44,265 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:41:44,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-06 20:41:44,266 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:41:44,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:41:44,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1249029969, now seen corresponding path program 1 times [2021-01-06 20:41:44,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:41:44,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759124930] [2021-01-06 20:41:44,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:41:44,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:41:44,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:41:44,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759124930] [2021-01-06 20:41:44,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:41:44,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 20:41:44,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10962631] [2021-01-06 20:41:44,365 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 20:41:44,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:41:44,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 20:41:44,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 20:41:44,366 INFO L87 Difference]: Start difference. First operand 20685 states and 31632 transitions. Second operand 4 states. [2021-01-06 20:41:48,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:41:48,484 INFO L93 Difference]: Finished difference Result 56209 states and 85913 transitions. [2021-01-06 20:41:48,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 20:41:48,485 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 68 [2021-01-06 20:41:48,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:41:48,530 INFO L225 Difference]: With dead ends: 56209 [2021-01-06 20:41:48,530 INFO L226 Difference]: Without dead ends: 36923 [2021-01-06 20:41:48,683 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 [2021-01-06 20:41:48,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36923 states. [2021-01-06 20:41:52,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36923 to 36597. [2021-01-06 20:41:52,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36597 states. [2021-01-06 20:41:52,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36597 states to 36597 states and 55362 transitions. [2021-01-06 20:41:52,787 INFO L78 Accepts]: Start accepts. Automaton has 36597 states and 55362 transitions. Word has length 68 [2021-01-06 20:41:52,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:41:52,787 INFO L481 AbstractCegarLoop]: Abstraction has 36597 states and 55362 transitions. [2021-01-06 20:41:52,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 20:41:52,787 INFO L276 IsEmpty]: Start isEmpty. Operand 36597 states and 55362 transitions. [2021-01-06 20:41:52,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-01-06 20:41:52,792 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:41:52,793 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:41:52,793 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-06 20:41:52,793 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:41:52,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:41:52,794 INFO L82 PathProgramCache]: Analyzing trace with hash -264834943, now seen corresponding path program 1 times [2021-01-06 20:41:52,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:41:52,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806882111] [2021-01-06 20:41:52,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:41:52,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:41:52,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:41:52,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806882111] [2021-01-06 20:41:52,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:41:52,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:41:52,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76842823] [2021-01-06 20:41:52,844 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:41:52,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:41:52,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:41:52,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:41:52,846 INFO L87 Difference]: Start difference. First operand 36597 states and 55362 transitions. Second operand 3 states. [2021-01-06 20:41:58,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:41:58,536 INFO L93 Difference]: Finished difference Result 68379 states and 103570 transitions. [2021-01-06 20:41:58,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:41:58,537 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2021-01-06 20:41:58,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:41:58,600 INFO L225 Difference]: With dead ends: 68379 [2021-01-06 20:41:58,600 INFO L226 Difference]: Without dead ends: 47657 [2021-01-06 20:41:58,625 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 [2021-01-06 20:41:58,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47657 states. [2021-01-06 20:42:04,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47657 to 46911. [2021-01-06 20:42:04,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46911 states. [2021-01-06 20:42:04,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46911 states to 46911 states and 70056 transitions. [2021-01-06 20:42:04,294 INFO L78 Accepts]: Start accepts. Automaton has 46911 states and 70056 transitions. Word has length 68 [2021-01-06 20:42:04,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:42:04,295 INFO L481 AbstractCegarLoop]: Abstraction has 46911 states and 70056 transitions. [2021-01-06 20:42:04,295 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:42:04,295 INFO L276 IsEmpty]: Start isEmpty. Operand 46911 states and 70056 transitions. [2021-01-06 20:42:04,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-01-06 20:42:04,299 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:42:04,299 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:42:04,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-01-06 20:42:04,299 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:42:04,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:42:04,300 INFO L82 PathProgramCache]: Analyzing trace with hash -660438559, now seen corresponding path program 1 times [2021-01-06 20:42:04,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:42:04,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929799122] [2021-01-06 20:42:04,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:42:04,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:42:04,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:42:04,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929799122] [2021-01-06 20:42:04,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:42:04,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:42:04,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533264460] [2021-01-06 20:42:04,345 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:42:04,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:42:04,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:42:04,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:42:04,346 INFO L87 Difference]: Start difference. First operand 46911 states and 70056 transitions. Second operand 3 states. [2021-01-06 20:42:12,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:42:12,544 INFO L93 Difference]: Finished difference Result 105134 states and 157096 transitions. [2021-01-06 20:42:12,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:42:12,544 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2021-01-06 20:42:12,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:42:12,632 INFO L225 Difference]: With dead ends: 105134 [2021-01-06 20:42:12,632 INFO L226 Difference]: Without dead ends: 63941 [2021-01-06 20:42:12,666 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 [2021-01-06 20:42:12,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63941 states. [2021-01-06 20:42:18,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63941 to 45771. [2021-01-06 20:42:18,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45771 states. [2021-01-06 20:42:18,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45771 states to 45771 states and 67469 transitions. [2021-01-06 20:42:18,692 INFO L78 Accepts]: Start accepts. Automaton has 45771 states and 67469 transitions. Word has length 68 [2021-01-06 20:42:18,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:42:18,692 INFO L481 AbstractCegarLoop]: Abstraction has 45771 states and 67469 transitions. [2021-01-06 20:42:18,692 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:42:18,692 INFO L276 IsEmpty]: Start isEmpty. Operand 45771 states and 67469 transitions. [2021-01-06 20:42:18,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-01-06 20:42:18,697 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:42:18,697 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:42:18,697 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-01-06 20:42:18,697 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:42:18,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:42:18,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1777284032, now seen corresponding path program 1 times [2021-01-06 20:42:18,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:42:18,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246422525] [2021-01-06 20:42:18,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:42:18,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:42:18,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:42:18,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246422525] [2021-01-06 20:42:18,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:42:18,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:42:18,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285250138] [2021-01-06 20:42:18,745 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:42:18,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:42:18,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:42:18,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:42:18,746 INFO L87 Difference]: Start difference. First operand 45771 states and 67469 transitions. Second operand 3 states. [2021-01-06 20:42:25,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:42:25,245 INFO L93 Difference]: Finished difference Result 65157 states and 95596 transitions. [2021-01-06 20:42:25,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:42:25,246 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2021-01-06 20:42:25,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:42:25,321 INFO L225 Difference]: With dead ends: 65157 [2021-01-06 20:42:25,322 INFO L226 Difference]: Without dead ends: 52001 [2021-01-06 20:42:25,340 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 [2021-01-06 20:42:25,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52001 states. [2021-01-06 20:42:31,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52001 to 48669. [2021-01-06 20:42:31,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48669 states. [2021-01-06 20:42:31,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48669 states to 48669 states and 70456 transitions. [2021-01-06 20:42:31,556 INFO L78 Accepts]: Start accepts. Automaton has 48669 states and 70456 transitions. Word has length 68 [2021-01-06 20:42:31,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:42:31,556 INFO L481 AbstractCegarLoop]: Abstraction has 48669 states and 70456 transitions. [2021-01-06 20:42:31,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:42:31,556 INFO L276 IsEmpty]: Start isEmpty. Operand 48669 states and 70456 transitions. [2021-01-06 20:42:31,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-01-06 20:42:31,560 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:42:31,560 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:42:31,561 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-01-06 20:42:31,561 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:42:31,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:42:31,561 INFO L82 PathProgramCache]: Analyzing trace with hash -450188991, now seen corresponding path program 1 times [2021-01-06 20:42:31,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:42:31,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141155049] [2021-01-06 20:42:31,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:42:31,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:42:31,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:42:31,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141155049] [2021-01-06 20:42:31,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:42:31,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-06 20:42:31,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222260304] [2021-01-06 20:42:31,636 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 20:42:31,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:42:31,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 20:42:31,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-01-06 20:42:31,637 INFO L87 Difference]: Start difference. First operand 48669 states and 70456 transitions. Second operand 6 states. [2021-01-06 20:42:51,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:42:51,349 INFO L93 Difference]: Finished difference Result 182705 states and 264238 transitions. [2021-01-06 20:42:51,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 20:42:51,349 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 69 [2021-01-06 20:42:51,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:42:51,780 INFO L225 Difference]: With dead ends: 182705 [2021-01-06 20:42:51,780 INFO L226 Difference]: Without dead ends: 140405 [2021-01-06 20:42:51,834 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-01-06 20:42:51,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140405 states. [2021-01-06 20:43:02,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140405 to 72847. [2021-01-06 20:43:02,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72847 states. [2021-01-06 20:43:03,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72847 states to 72847 states and 105198 transitions. [2021-01-06 20:43:03,024 INFO L78 Accepts]: Start accepts. Automaton has 72847 states and 105198 transitions. Word has length 69 [2021-01-06 20:43:03,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:43:03,025 INFO L481 AbstractCegarLoop]: Abstraction has 72847 states and 105198 transitions. [2021-01-06 20:43:03,025 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 20:43:03,025 INFO L276 IsEmpty]: Start isEmpty. Operand 72847 states and 105198 transitions. [2021-01-06 20:43:03,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-01-06 20:43:03,043 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:43:03,043 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:43:03,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-01-06 20:43:03,043 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:43:03,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:43:03,044 INFO L82 PathProgramCache]: Analyzing trace with hash 558054915, now seen corresponding path program 1 times [2021-01-06 20:43:03,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:43:03,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426156955] [2021-01-06 20:43:03,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:43:03,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:43:03,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:43:03,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426156955] [2021-01-06 20:43:03,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:43:03,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-06 20:43:03,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031280210] [2021-01-06 20:43:03,180 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 20:43:03,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:43:03,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 20:43:03,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-01-06 20:43:03,181 INFO L87 Difference]: Start difference. First operand 72847 states and 105198 transitions. Second operand 6 states. [2021-01-06 20:43:27,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:43:27,935 INFO L93 Difference]: Finished difference Result 179866 states and 260464 transitions. [2021-01-06 20:43:27,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 20:43:27,936 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 69 [2021-01-06 20:43:27,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:43:28,444 INFO L225 Difference]: With dead ends: 179866 [2021-01-06 20:43:28,445 INFO L226 Difference]: Without dead ends: 167212 [2021-01-06 20:43:28,489 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-01-06 20:43:28,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167212 states. [2021-01-06 20:43:42,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167212 to 85919. [2021-01-06 20:43:42,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85919 states. [2021-01-06 20:43:42,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85919 states to 85919 states and 124040 transitions. [2021-01-06 20:43:42,576 INFO L78 Accepts]: Start accepts. Automaton has 85919 states and 124040 transitions. Word has length 69 [2021-01-06 20:43:42,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:43:42,576 INFO L481 AbstractCegarLoop]: Abstraction has 85919 states and 124040 transitions. [2021-01-06 20:43:42,576 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 20:43:42,576 INFO L276 IsEmpty]: Start isEmpty. Operand 85919 states and 124040 transitions. [2021-01-06 20:43:42,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-01-06 20:43:42,579 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:43:42,579 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:43:42,579 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-01-06 20:43:42,579 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:43:42,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:43:42,580 INFO L82 PathProgramCache]: Analyzing trace with hash 362024722, now seen corresponding path program 1 times [2021-01-06 20:43:42,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:43:42,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424653963] [2021-01-06 20:43:42,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:43:42,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:43:42,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:43:42,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424653963] [2021-01-06 20:43:42,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:43:42,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-06 20:43:42,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602307433] [2021-01-06 20:43:42,696 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 20:43:42,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:43:42,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 20:43:42,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-01-06 20:43:42,698 INFO L87 Difference]: Start difference. First operand 85919 states and 124040 transitions. Second operand 6 states. [2021-01-06 20:44:09,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:44:09,881 INFO L93 Difference]: Finished difference Result 193044 states and 279419 transitions. [2021-01-06 20:44:09,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 20:44:09,881 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 69 [2021-01-06 20:44:09,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:44:10,299 INFO L225 Difference]: With dead ends: 193044 [2021-01-06 20:44:10,299 INFO L226 Difference]: Without dead ends: 169860 [2021-01-06 20:44:10,361 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-01-06 20:44:10,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169860 states. [2021-01-06 20:44:26,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169860 to 96291. [2021-01-06 20:44:26,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96291 states. [2021-01-06 20:44:26,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96291 states to 96291 states and 139210 transitions. [2021-01-06 20:44:26,557 INFO L78 Accepts]: Start accepts. Automaton has 96291 states and 139210 transitions. Word has length 69 [2021-01-06 20:44:26,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:44:26,557 INFO L481 AbstractCegarLoop]: Abstraction has 96291 states and 139210 transitions. [2021-01-06 20:44:26,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 20:44:26,557 INFO L276 IsEmpty]: Start isEmpty. Operand 96291 states and 139210 transitions. [2021-01-06 20:44:26,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-01-06 20:44:26,560 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:44:26,561 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:44:26,561 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-01-06 20:44:26,561 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:44:26,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:44:26,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1608289607, now seen corresponding path program 1 times [2021-01-06 20:44:26,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:44:26,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363342694] [2021-01-06 20:44:26,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:44:26,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:44:26,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:44:26,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363342694] [2021-01-06 20:44:26,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:44:26,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-06 20:44:26,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724783202] [2021-01-06 20:44:26,673 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 20:44:26,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:44:26,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 20:44:26,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-01-06 20:44:26,674 INFO L87 Difference]: Start difference. First operand 96291 states and 139210 transitions. Second operand 6 states. [2021-01-06 20:44:54,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:44:54,659 INFO L93 Difference]: Finished difference Result 215357 states and 311767 transitions. [2021-01-06 20:44:54,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 20:44:54,659 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 69 [2021-01-06 20:44:54,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:44:55,142 INFO L225 Difference]: With dead ends: 215357 [2021-01-06 20:44:55,143 INFO L226 Difference]: Without dead ends: 168098 [2021-01-06 20:44:55,208 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-01-06 20:44:55,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168098 states.