/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.3.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 20:32:12,724 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 20:32:12,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 20:32:12,763 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 20:32:12,764 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 20:32:12,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 20:32:12,767 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 20:32:12,770 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 20:32:12,772 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 20:32:12,773 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 20:32:12,774 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 20:32:12,776 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 20:32:12,776 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 20:32:12,777 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 20:32:12,779 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 20:32:12,780 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 20:32:12,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 20:32:12,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 20:32:12,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 20:32:12,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 20:32:12,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 20:32:12,789 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 20:32:12,791 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 20:32:12,792 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 20:32:12,795 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 20:32:12,795 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 20:32:12,796 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 20:32:12,797 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 20:32:12,797 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 20:32:12,799 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 20:32:12,799 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 20:32:12,803 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 20:32:12,804 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 20:32:12,805 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 20:32:12,806 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 20:32:12,807 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 20:32:12,808 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 20:32:12,809 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 20:32:12,809 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 20:32:12,811 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 20:32:12,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 20:32:12,818 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 20:32:12,871 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 20:32:12,871 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 20:32:12,873 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 20:32:12,874 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 20:32:12,874 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 20:32:12,875 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 20:32:12,875 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 20:32:12,875 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 20:32:12,875 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 20:32:12,876 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 20:32:12,877 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 20:32:12,877 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 20:32:12,877 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 20:32:12,878 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 20:32:12,878 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 20:32:12,878 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 20:32:12,879 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 20:32:12,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 20:32:12,879 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 20:32:12,879 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 20:32:12,880 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 20:32:12,880 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 20:32:12,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 20:32:12,881 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 20:32:12,881 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 20:32:12,881 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 20:32:13,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 20:32:13,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 20:32:13,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 20:32:13,395 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 20:32:13,396 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 20:32:13,397 INFO L432 ainManager$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.3.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2021-01-06 20:32:13,515 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/65ce77ab5/423dd90fb60b4414acb2f96b4c3374a8/FLAG96793b6a1 [2021-01-06 20:32:14,212 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 20:32:14,213 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2021-01-06 20:32:14,226 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/65ce77ab5/423dd90fb60b4414acb2f96b4c3374a8/FLAG96793b6a1 [2021-01-06 20:32:14,534 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/65ce77ab5/423dd90fb60b4414acb2f96b4c3374a8 [2021-01-06 20:32:14,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 20:32:14,540 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 20:32:14,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 20:32:14,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 20:32:14,546 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 20:32:14,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 08:32:14" (1/1) ... [2021-01-06 20:32:14,548 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65ad304d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:32:14, skipping insertion in model container [2021-01-06 20:32:14,548 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 08:32:14" (1/1) ... [2021-01-06 20:32:14,557 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 20:32:14,601 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[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_6348~0,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[~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[~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[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_6426~0,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[~p3_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[~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[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_6487~0,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,] 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[~p3_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[~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[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~__return_6554~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_3~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~2,] [2021-01-06 20:32:14,855 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.3.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[6761,6774] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~3,] 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__m1~3,] left hand side expression in assignment: lhs: VariableLHS[~p3_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[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,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[~node1____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] 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[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~2,] 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_0~2,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_6744~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] 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[~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[~send1~0,GLOBAL] 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,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~2,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~2,] [2021-01-06 20:32:14,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 20:32:14,920 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[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_6348~0,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[~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[~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[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_6426~0,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[~p3_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[~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[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_6487~0,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,] 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[~p3_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[~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[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~__return_6554~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_3~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~2,] [2021-01-06 20:32:14,994 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.3.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[6761,6774] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~3,] 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__m1~3,] left hand side expression in assignment: lhs: VariableLHS[~p3_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[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,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[~node1____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] 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[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~2,] 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_0~2,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_6744~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] 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[~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[~send1~0,GLOBAL] 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,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~2,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~2,] [2021-01-06 20:32:15,104 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 20:32:15,128 INFO L208 MainTranslator]: Completed translation [2021-01-06 20:32:15,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:32:15 WrapperNode [2021-01-06 20:32:15,129 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 20:32:15,130 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 20:32:15,131 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 20:32:15,131 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 20:32:15,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:32:15" (1/1) ... [2021-01-06 20:32:15,153 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:32:15" (1/1) ... [2021-01-06 20:32:15,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 20:32:15,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 20:32:15,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 20:32:15,205 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 20:32:15,215 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:32:15" (1/1) ... [2021-01-06 20:32:15,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:32:15" (1/1) ... [2021-01-06 20:32:15,222 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:32:15" (1/1) ... [2021-01-06 20:32:15,223 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:32:15" (1/1) ... [2021-01-06 20:32:15,234 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:32:15" (1/1) ... [2021-01-06 20:32:15,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:32:15" (1/1) ... [2021-01-06 20:32:15,246 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:32:15" (1/1) ... [2021-01-06 20:32:15,252 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 20:32:15,253 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 20:32:15,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 20:32:15,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 20:32:15,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:32:15" (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 20:32:15,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 20:32:15,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 20:32:15,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 20:32:15,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 20:32:16,499 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 20:32:16,500 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-01-06 20:32:16,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 08:32:16 BoogieIcfgContainer [2021-01-06 20:32:16,502 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 20:32:16,504 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 20:32:16,504 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 20:32:16,508 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 20:32:16,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 08:32:14" (1/3) ... [2021-01-06 20:32:16,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@488eac14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 08:32:16, skipping insertion in model container [2021-01-06 20:32:16,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:32:15" (2/3) ... [2021-01-06 20:32:16,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@488eac14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 08:32:16, skipping insertion in model container [2021-01-06 20:32:16,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 08:32:16" (3/3) ... [2021-01-06 20:32:16,512 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2021-01-06 20:32:16,518 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 20:32:16,524 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 20:32:16,550 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-01-06 20:32:16,579 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 20:32:16,580 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 20:32:16,580 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 20:32:16,580 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 20:32:16,580 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 20:32:16,580 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 20:32:16,580 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 20:32:16,581 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 20:32:16,600 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states. [2021-01-06 20:32:16,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-01-06 20:32:16,608 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:32:16,609 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] [2021-01-06 20:32:16,610 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:32:16,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:32:16,616 INFO L82 PathProgramCache]: Analyzing trace with hash 293786216, now seen corresponding path program 1 times [2021-01-06 20:32:16,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:32:16,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327352419] [2021-01-06 20:32:16,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:32:16,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:32:17,035 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 20:32:17,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327352419] [2021-01-06 20:32:17,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:32:17,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:32:17,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268788794] [2021-01-06 20:32:17,042 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:32:17,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:32:17,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:32:17,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:32:17,060 INFO L87 Difference]: Start difference. First operand 161 states. Second operand 3 states. [2021-01-06 20:32:17,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:32:17,203 INFO L93 Difference]: Finished difference Result 308 states and 501 transitions. [2021-01-06 20:32:17,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:32:17,205 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 49 [2021-01-06 20:32:17,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:32:17,226 INFO L225 Difference]: With dead ends: 308 [2021-01-06 20:32:17,227 INFO L226 Difference]: Without dead ends: 235 [2021-01-06 20:32:17,230 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 20:32:17,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2021-01-06 20:32:17,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 233. [2021-01-06 20:32:17,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2021-01-06 20:32:17,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 350 transitions. [2021-01-06 20:32:17,303 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 350 transitions. Word has length 49 [2021-01-06 20:32:17,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:32:17,303 INFO L481 AbstractCegarLoop]: Abstraction has 233 states and 350 transitions. [2021-01-06 20:32:17,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:32:17,304 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 350 transitions. [2021-01-06 20:32:17,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-01-06 20:32:17,306 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:32:17,306 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] [2021-01-06 20:32:17,307 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 20:32:17,307 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:32:17,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:32:17,308 INFO L82 PathProgramCache]: Analyzing trace with hash -1697275801, now seen corresponding path program 1 times [2021-01-06 20:32:17,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:32:17,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320882643] [2021-01-06 20:32:17,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:32:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:32:17,507 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 20:32:17,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320882643] [2021-01-06 20:32:17,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:32:17,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:32:17,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876816159] [2021-01-06 20:32:17,510 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:32:17,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:32:17,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:32:17,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:32:17,512 INFO L87 Difference]: Start difference. First operand 233 states and 350 transitions. Second operand 3 states. [2021-01-06 20:32:17,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:32:17,591 INFO L93 Difference]: Finished difference Result 571 states and 877 transitions. [2021-01-06 20:32:17,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:32:17,591 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2021-01-06 20:32:17,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:32:17,596 INFO L225 Difference]: With dead ends: 571 [2021-01-06 20:32:17,596 INFO L226 Difference]: Without dead ends: 395 [2021-01-06 20:32:17,598 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 20:32:17,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2021-01-06 20:32:17,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 393. [2021-01-06 20:32:17,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2021-01-06 20:32:17,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 590 transitions. [2021-01-06 20:32:17,649 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 590 transitions. Word has length 52 [2021-01-06 20:32:17,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:32:17,650 INFO L481 AbstractCegarLoop]: Abstraction has 393 states and 590 transitions. [2021-01-06 20:32:17,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:32:17,650 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 590 transitions. [2021-01-06 20:32:17,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-01-06 20:32:17,654 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:32:17,654 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] [2021-01-06 20:32:17,654 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 20:32:17,654 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:32:17,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:32:17,655 INFO L82 PathProgramCache]: Analyzing trace with hash -195371450, now seen corresponding path program 1 times [2021-01-06 20:32:17,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:32:17,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31896302] [2021-01-06 20:32:17,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:32:17,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:32:17,744 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 20:32:17,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31896302] [2021-01-06 20:32:17,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:32:17,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:32:17,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122899313] [2021-01-06 20:32:17,745 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:32:17,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:32:17,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:32:17,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:32:17,747 INFO L87 Difference]: Start difference. First operand 393 states and 590 transitions. Second operand 3 states. [2021-01-06 20:32:17,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:32:17,863 INFO L93 Difference]: Finished difference Result 975 states and 1485 transitions. [2021-01-06 20:32:17,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:32:17,864 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2021-01-06 20:32:17,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:32:17,870 INFO L225 Difference]: With dead ends: 975 [2021-01-06 20:32:17,871 INFO L226 Difference]: Without dead ends: 681 [2021-01-06 20:32:17,875 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 20:32:17,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2021-01-06 20:32:17,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 679. [2021-01-06 20:32:17,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 679 states. [2021-01-06 20:32:17,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 1013 transitions. [2021-01-06 20:32:17,966 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 1013 transitions. Word has length 52 [2021-01-06 20:32:17,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:32:17,967 INFO L481 AbstractCegarLoop]: Abstraction has 679 states and 1013 transitions. [2021-01-06 20:32:17,967 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:32:17,967 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 1013 transitions. [2021-01-06 20:32:17,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-01-06 20:32:17,970 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:32:17,970 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] [2021-01-06 20:32:17,970 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 20:32:17,971 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:32:17,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:32:17,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1046972601, now seen corresponding path program 1 times [2021-01-06 20:32:17,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:32:17,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306152065] [2021-01-06 20:32:17,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:32:18,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:32:18,080 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 20:32:18,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306152065] [2021-01-06 20:32:18,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:32:18,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:32:18,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271633880] [2021-01-06 20:32:18,082 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:32:18,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:32:18,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:32:18,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:32:18,083 INFO L87 Difference]: Start difference. First operand 679 states and 1013 transitions. Second operand 3 states. [2021-01-06 20:32:18,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:32:18,162 INFO L93 Difference]: Finished difference Result 1661 states and 2497 transitions. [2021-01-06 20:32:18,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:32:18,163 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2021-01-06 20:32:18,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:32:18,170 INFO L225 Difference]: With dead ends: 1661 [2021-01-06 20:32:18,170 INFO L226 Difference]: Without dead ends: 1165 [2021-01-06 20:32:18,172 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 20:32:18,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1165 states. [2021-01-06 20:32:18,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1165 to 1163. [2021-01-06 20:32:18,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1163 states. [2021-01-06 20:32:18,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1163 states to 1163 states and 1710 transitions. [2021-01-06 20:32:18,234 INFO L78 Accepts]: Start accepts. Automaton has 1163 states and 1710 transitions. Word has length 52 [2021-01-06 20:32:18,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:32:18,234 INFO L481 AbstractCegarLoop]: Abstraction has 1163 states and 1710 transitions. [2021-01-06 20:32:18,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:32:18,235 INFO L276 IsEmpty]: Start isEmpty. Operand 1163 states and 1710 transitions. [2021-01-06 20:32:18,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-01-06 20:32:18,237 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:32:18,238 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] [2021-01-06 20:32:18,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 20:32:18,238 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:32:18,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:32:18,239 INFO L82 PathProgramCache]: Analyzing trace with hash 1633425885, now seen corresponding path program 1 times [2021-01-06 20:32:18,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:32:18,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357784086] [2021-01-06 20:32:18,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:32:18,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:32:18,360 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 20:32:18,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357784086] [2021-01-06 20:32:18,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:32:18,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 20:32:18,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130266176] [2021-01-06 20:32:18,361 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 20:32:18,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:32:18,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 20:32:18,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 20:32:18,363 INFO L87 Difference]: Start difference. First operand 1163 states and 1710 transitions. Second operand 5 states. [2021-01-06 20:32:18,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:32:18,770 INFO L93 Difference]: Finished difference Result 3269 states and 4842 transitions. [2021-01-06 20:32:18,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 20:32:18,770 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 53 [2021-01-06 20:32:18,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:32:18,781 INFO L225 Difference]: With dead ends: 3269 [2021-01-06 20:32:18,782 INFO L226 Difference]: Without dead ends: 2133 [2021-01-06 20:32:18,784 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 20:32:18,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2133 states. [2021-01-06 20:32:18,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2133 to 2119. [2021-01-06 20:32:18,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2119 states. [2021-01-06 20:32:18,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2119 states to 2119 states and 3124 transitions. [2021-01-06 20:32:18,949 INFO L78 Accepts]: Start accepts. Automaton has 2119 states and 3124 transitions. Word has length 53 [2021-01-06 20:32:18,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:32:18,951 INFO L481 AbstractCegarLoop]: Abstraction has 2119 states and 3124 transitions. [2021-01-06 20:32:18,951 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 20:32:18,952 INFO L276 IsEmpty]: Start isEmpty. Operand 2119 states and 3124 transitions. [2021-01-06 20:32:18,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-01-06 20:32:18,953 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:32:18,954 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] [2021-01-06 20:32:18,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 20:32:18,954 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:32:18,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:32:18,956 INFO L82 PathProgramCache]: Analyzing trace with hash 1286312845, now seen corresponding path program 1 times [2021-01-06 20:32:18,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:32:18,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418609390] [2021-01-06 20:32:18,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:32:18,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:32:19,054 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 20:32:19,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418609390] [2021-01-06 20:32:19,055 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:32:19,055 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 20:32:19,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986858503] [2021-01-06 20:32:19,057 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 20:32:19,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:32:19,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 20:32:19,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 20:32:19,060 INFO L87 Difference]: Start difference. First operand 2119 states and 3124 transitions. Second operand 5 states. [2021-01-06 20:32:19,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:32:19,475 INFO L93 Difference]: Finished difference Result 6895 states and 10296 transitions. [2021-01-06 20:32:19,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 20:32:19,476 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 53 [2021-01-06 20:32:19,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:32:19,503 INFO L225 Difference]: With dead ends: 6895 [2021-01-06 20:32:19,503 INFO L226 Difference]: Without dead ends: 5477 [2021-01-06 20:32:19,507 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-01-06 20:32:19,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5477 states. [2021-01-06 20:32:19,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5477 to 2534. [2021-01-06 20:32:19,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2534 states. [2021-01-06 20:32:19,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2534 states to 2534 states and 3755 transitions. [2021-01-06 20:32:19,726 INFO L78 Accepts]: Start accepts. Automaton has 2534 states and 3755 transitions. Word has length 53 [2021-01-06 20:32:19,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:32:19,726 INFO L481 AbstractCegarLoop]: Abstraction has 2534 states and 3755 transitions. [2021-01-06 20:32:19,727 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 20:32:19,727 INFO L276 IsEmpty]: Start isEmpty. Operand 2534 states and 3755 transitions. [2021-01-06 20:32:19,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-01-06 20:32:19,729 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:32:19,729 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] [2021-01-06 20:32:19,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-06 20:32:19,730 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:32:19,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:32:19,731 INFO L82 PathProgramCache]: Analyzing trace with hash -1015763425, now seen corresponding path program 1 times [2021-01-06 20:32:19,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:32:19,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101595798] [2021-01-06 20:32:19,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:32:19,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:32:19,855 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 20:32:19,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101595798] [2021-01-06 20:32:19,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:32:19,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 20:32:19,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83684998] [2021-01-06 20:32:19,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 20:32:19,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:32:19,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 20:32:19,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-01-06 20:32:19,858 INFO L87 Difference]: Start difference. First operand 2534 states and 3755 transitions. Second operand 6 states. [2021-01-06 20:32:20,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:32:20,564 INFO L93 Difference]: Finished difference Result 7874 states and 11688 transitions. [2021-01-06 20:32:20,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 20:32:20,565 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2021-01-06 20:32:20,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:32:20,592 INFO L225 Difference]: With dead ends: 7874 [2021-01-06 20:32:20,592 INFO L226 Difference]: Without dead ends: 5421 [2021-01-06 20:32:20,597 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 20:32:20,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5421 states. [2021-01-06 20:32:21,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5421 to 5377. [2021-01-06 20:32:21,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5377 states. [2021-01-06 20:32:21,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5377 states to 5377 states and 7950 transitions. [2021-01-06 20:32:21,083 INFO L78 Accepts]: Start accepts. Automaton has 5377 states and 7950 transitions. Word has length 53 [2021-01-06 20:32:21,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:32:21,085 INFO L481 AbstractCegarLoop]: Abstraction has 5377 states and 7950 transitions. [2021-01-06 20:32:21,085 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 20:32:21,085 INFO L276 IsEmpty]: Start isEmpty. Operand 5377 states and 7950 transitions. [2021-01-06 20:32:21,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-01-06 20:32:21,088 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:32:21,088 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] [2021-01-06 20:32:21,088 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-06 20:32:21,088 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:32:21,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:32:21,089 INFO L82 PathProgramCache]: Analyzing trace with hash 2014010067, now seen corresponding path program 1 times [2021-01-06 20:32:21,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:32:21,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347335363] [2021-01-06 20:32:21,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:32:21,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:32:21,226 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 20:32:21,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347335363] [2021-01-06 20:32:21,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:32:21,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 20:32:21,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195477067] [2021-01-06 20:32:21,228 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 20:32:21,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:32:21,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 20:32:21,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 20:32:21,229 INFO L87 Difference]: Start difference. First operand 5377 states and 7950 transitions. Second operand 5 states. [2021-01-06 20:32:22,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:32:22,248 INFO L93 Difference]: Finished difference Result 16873 states and 25054 transitions. [2021-01-06 20:32:22,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 20:32:22,249 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2021-01-06 20:32:22,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:32:22,333 INFO L225 Difference]: With dead ends: 16873 [2021-01-06 20:32:22,333 INFO L226 Difference]: Without dead ends: 13467 [2021-01-06 20:32:22,343 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-01-06 20:32:22,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13467 states. [2021-01-06 20:32:22,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13467 to 6963. [2021-01-06 20:32:22,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6963 states. [2021-01-06 20:32:22,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6963 states to 6963 states and 10363 transitions. [2021-01-06 20:32:22,990 INFO L78 Accepts]: Start accepts. Automaton has 6963 states and 10363 transitions. Word has length 54 [2021-01-06 20:32:22,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:32:22,990 INFO L481 AbstractCegarLoop]: Abstraction has 6963 states and 10363 transitions. [2021-01-06 20:32:22,991 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 20:32:22,991 INFO L276 IsEmpty]: Start isEmpty. Operand 6963 states and 10363 transitions. [2021-01-06 20:32:22,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-01-06 20:32:22,993 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:32:22,993 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] [2021-01-06 20:32:22,993 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-06 20:32:22,993 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:32:22,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:32:22,995 INFO L82 PathProgramCache]: Analyzing trace with hash -697153037, now seen corresponding path program 1 times [2021-01-06 20:32:22,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:32:22,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149777445] [2021-01-06 20:32:22,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:32:23,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:32:23,102 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 20:32:23,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149777445] [2021-01-06 20:32:23,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:32:23,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 20:32:23,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356528409] [2021-01-06 20:32:23,109 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 20:32:23,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:32:23,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 20:32:23,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 20:32:23,112 INFO L87 Difference]: Start difference. First operand 6963 states and 10363 transitions. Second operand 5 states. [2021-01-06 20:32:24,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:32:24,207 INFO L93 Difference]: Finished difference Result 17301 states and 25718 transitions. [2021-01-06 20:32:24,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 20:32:24,208 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2021-01-06 20:32:24,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:32:24,242 INFO L225 Difference]: With dead ends: 17301 [2021-01-06 20:32:24,242 INFO L226 Difference]: Without dead ends: 13895 [2021-01-06 20:32:24,250 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 20:32:24,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13895 states. [2021-01-06 20:32:25,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13895 to 8273. [2021-01-06 20:32:25,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8273 states. [2021-01-06 20:32:25,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8273 states to 8273 states and 12325 transitions. [2021-01-06 20:32:25,040 INFO L78 Accepts]: Start accepts. Automaton has 8273 states and 12325 transitions. Word has length 54 [2021-01-06 20:32:25,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:32:25,040 INFO L481 AbstractCegarLoop]: Abstraction has 8273 states and 12325 transitions. [2021-01-06 20:32:25,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 20:32:25,040 INFO L276 IsEmpty]: Start isEmpty. Operand 8273 states and 12325 transitions. [2021-01-06 20:32:25,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-01-06 20:32:25,044 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:32:25,044 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] [2021-01-06 20:32:25,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-06 20:32:25,045 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:32:25,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:32:25,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1161753004, now seen corresponding path program 1 times [2021-01-06 20:32:25,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:32:25,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145476367] [2021-01-06 20:32:25,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:32:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:32:25,161 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 20:32:25,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145476367] [2021-01-06 20:32:25,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:32:25,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 20:32:25,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553275580] [2021-01-06 20:32:25,163 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 20:32:25,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:32:25,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 20:32:25,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-01-06 20:32:25,168 INFO L87 Difference]: Start difference. First operand 8273 states and 12325 transitions. Second operand 6 states. [2021-01-06 20:32:26,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:32:26,644 INFO L93 Difference]: Finished difference Result 26419 states and 39303 transitions. [2021-01-06 20:32:26,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 20:32:26,645 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2021-01-06 20:32:26,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:32:26,687 INFO L225 Difference]: With dead ends: 26419 [2021-01-06 20:32:26,687 INFO L226 Difference]: Without dead ends: 18191 [2021-01-06 20:32:26,700 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 20:32:26,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18191 states. [2021-01-06 20:32:27,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18191 to 18063. [2021-01-06 20:32:27,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18063 states. [2021-01-06 20:32:27,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18063 states to 18063 states and 26749 transitions. [2021-01-06 20:32:27,946 INFO L78 Accepts]: Start accepts. Automaton has 18063 states and 26749 transitions. Word has length 58 [2021-01-06 20:32:27,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:32:27,946 INFO L481 AbstractCegarLoop]: Abstraction has 18063 states and 26749 transitions. [2021-01-06 20:32:27,946 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 20:32:27,946 INFO L276 IsEmpty]: Start isEmpty. Operand 18063 states and 26749 transitions. [2021-01-06 20:32:27,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-01-06 20:32:27,955 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:32:27,955 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] [2021-01-06 20:32:27,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-06 20:32:27,956 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:32:27,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:32:27,956 INFO L82 PathProgramCache]: Analyzing trace with hash 536362735, now seen corresponding path program 1 times [2021-01-06 20:32:27,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:32:27,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239323934] [2021-01-06 20:32:27,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:32:27,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:32:28,057 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 20:32:28,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239323934] [2021-01-06 20:32:28,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:32:28,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-06 20:32:28,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784992035] [2021-01-06 20:32:28,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 20:32:28,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:32:28,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 20:32:28,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-06 20:32:28,061 INFO L87 Difference]: Start difference. First operand 18063 states and 26749 transitions. Second operand 7 states. [2021-01-06 20:32:32,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:32:32,517 INFO L93 Difference]: Finished difference Result 68375 states and 100171 transitions. [2021-01-06 20:32:32,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-06 20:32:32,518 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 59 [2021-01-06 20:32:32,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:32:32,689 INFO L225 Difference]: With dead ends: 68375 [2021-01-06 20:32:32,689 INFO L226 Difference]: Without dead ends: 60389 [2021-01-06 20:32:32,716 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2021-01-06 20:32:32,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60389 states. [2021-01-06 20:32:34,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60389 to 18083. [2021-01-06 20:32:34,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18083 states. [2021-01-06 20:32:34,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18083 states to 18083 states and 26773 transitions. [2021-01-06 20:32:34,909 INFO L78 Accepts]: Start accepts. Automaton has 18083 states and 26773 transitions. Word has length 59 [2021-01-06 20:32:34,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:32:34,910 INFO L481 AbstractCegarLoop]: Abstraction has 18083 states and 26773 transitions. [2021-01-06 20:32:34,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 20:32:34,910 INFO L276 IsEmpty]: Start isEmpty. Operand 18083 states and 26773 transitions. [2021-01-06 20:32:34,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-01-06 20:32:34,916 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:32:34,916 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] [2021-01-06 20:32:34,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-06 20:32:34,917 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:32:34,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:32:34,917 INFO L82 PathProgramCache]: Analyzing trace with hash -426804272, now seen corresponding path program 1 times [2021-01-06 20:32:34,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:32:34,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982416654] [2021-01-06 20:32:34,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:32:34,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:32:35,003 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 20:32:35,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982416654] [2021-01-06 20:32:35,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:32:35,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-06 20:32:35,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502988943] [2021-01-06 20:32:35,005 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 20:32:35,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:32:35,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 20:32:35,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-06 20:32:35,006 INFO L87 Difference]: Start difference. First operand 18083 states and 26773 transitions. Second operand 7 states. [2021-01-06 20:32:41,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:32:41,560 INFO L93 Difference]: Finished difference Result 80539 states and 117755 transitions. [2021-01-06 20:32:41,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-06 20:32:41,560 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 59 [2021-01-06 20:32:41,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:32:41,712 INFO L225 Difference]: With dead ends: 80539 [2021-01-06 20:32:41,712 INFO L226 Difference]: Without dead ends: 72607 [2021-01-06 20:32:41,736 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2021-01-06 20:32:41,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72607 states. [2021-01-06 20:32:43,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72607 to 18193. [2021-01-06 20:32:43,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18193 states. [2021-01-06 20:32:43,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18193 states to 18193 states and 26915 transitions. [2021-01-06 20:32:43,761 INFO L78 Accepts]: Start accepts. Automaton has 18193 states and 26915 transitions. Word has length 59 [2021-01-06 20:32:43,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:32:43,761 INFO L481 AbstractCegarLoop]: Abstraction has 18193 states and 26915 transitions. [2021-01-06 20:32:43,761 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 20:32:43,761 INFO L276 IsEmpty]: Start isEmpty. Operand 18193 states and 26915 transitions. [2021-01-06 20:32:43,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-01-06 20:32:43,766 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:32:43,766 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] [2021-01-06 20:32:43,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-01-06 20:32:43,766 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:32:43,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:32:43,767 INFO L82 PathProgramCache]: Analyzing trace with hash -974429839, now seen corresponding path program 1 times [2021-01-06 20:32:43,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:32:43,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327226399] [2021-01-06 20:32:43,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:32:43,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:32:43,843 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 20:32:43,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327226399] [2021-01-06 20:32:43,843 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:32:43,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-06 20:32:43,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393495143] [2021-01-06 20:32:43,844 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 20:32:43,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:32:43,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 20:32:43,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-06 20:32:43,845 INFO L87 Difference]: Start difference. First operand 18193 states and 26915 transitions. Second operand 7 states. [2021-01-06 20:32:53,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:32:53,059 INFO L93 Difference]: Finished difference Result 101278 states and 148259 transitions. [2021-01-06 20:32:53,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-06 20:32:53,060 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 59 [2021-01-06 20:32:53,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:32:53,554 INFO L225 Difference]: With dead ends: 101278 [2021-01-06 20:32:53,555 INFO L226 Difference]: Without dead ends: 94828 [2021-01-06 20:32:53,613 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2021-01-06 20:32:53,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94828 states. [2021-01-06 20:32:56,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94828 to 18249. [2021-01-06 20:32:56,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18249 states. [2021-01-06 20:32:56,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18249 states to 18249 states and 26984 transitions. [2021-01-06 20:32:56,349 INFO L78 Accepts]: Start accepts. Automaton has 18249 states and 26984 transitions. Word has length 59 [2021-01-06 20:32:56,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:32:56,349 INFO L481 AbstractCegarLoop]: Abstraction has 18249 states and 26984 transitions. [2021-01-06 20:32:56,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 20:32:56,349 INFO L276 IsEmpty]: Start isEmpty. Operand 18249 states and 26984 transitions. [2021-01-06 20:32:56,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-01-06 20:32:56,355 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:32:56,355 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] [2021-01-06 20:32:56,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-01-06 20:32:56,355 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:32:56,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:32:56,356 INFO L82 PathProgramCache]: Analyzing trace with hash -1695106365, now seen corresponding path program 1 times [2021-01-06 20:32:56,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:32:56,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751470185] [2021-01-06 20:32:56,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:32:56,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:32:56,570 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2021-01-06 20:32:56,712 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 20:32:56,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751470185] [2021-01-06 20:32:56,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:32:56,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-06 20:32:56,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83307475] [2021-01-06 20:32:56,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-06 20:32:56,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:32:56,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-06 20:32:56,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-01-06 20:32:56,715 INFO L87 Difference]: Start difference. First operand 18249 states and 26984 transitions. Second operand 10 states. [2021-01-06 20:33:04,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:33:04,728 INFO L93 Difference]: Finished difference Result 62666 states and 92207 transitions. [2021-01-06 20:33:04,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-01-06 20:33:04,729 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 61 [2021-01-06 20:33:04,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:33:04,812 INFO L225 Difference]: With dead ends: 62666 [2021-01-06 20:33:04,812 INFO L226 Difference]: Without dead ends: 46429 [2021-01-06 20:33:04,838 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=250, Invalid=742, Unknown=0, NotChecked=0, Total=992 [2021-01-06 20:33:04,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46429 states. [2021-01-06 20:33:07,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46429 to 18029. [2021-01-06 20:33:07,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18029 states. [2021-01-06 20:33:07,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18029 states to 18029 states and 26634 transitions. [2021-01-06 20:33:07,336 INFO L78 Accepts]: Start accepts. Automaton has 18029 states and 26634 transitions. Word has length 61 [2021-01-06 20:33:07,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:33:07,336 INFO L481 AbstractCegarLoop]: Abstraction has 18029 states and 26634 transitions. [2021-01-06 20:33:07,336 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-06 20:33:07,336 INFO L276 IsEmpty]: Start isEmpty. Operand 18029 states and 26634 transitions. [2021-01-06 20:33:07,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-01-06 20:33:07,342 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:33:07,342 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] [2021-01-06 20:33:07,342 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-01-06 20:33:07,342 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:33:07,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:33:07,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1748259780, now seen corresponding path program 1 times [2021-01-06 20:33:07,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:33:07,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826487903] [2021-01-06 20:33:07,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:33:07,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:33:07,570 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 20:33:07,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826487903] [2021-01-06 20:33:07,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:33:07,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-06 20:33:07,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857700874] [2021-01-06 20:33:07,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-06 20:33:07,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:33:07,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-06 20:33:07,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-01-06 20:33:07,572 INFO L87 Difference]: Start difference. First operand 18029 states and 26634 transitions. Second operand 10 states. [2021-01-06 20:33:20,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:33:20,214 INFO L93 Difference]: Finished difference Result 86475 states and 126244 transitions. [2021-01-06 20:33:20,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-06 20:33:20,215 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 61 [2021-01-06 20:33:20,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:33:20,305 INFO L225 Difference]: With dead ends: 86475 [2021-01-06 20:33:20,305 INFO L226 Difference]: Without dead ends: 70149 [2021-01-06 20:33:20,329 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=272, Invalid=850, Unknown=0, NotChecked=0, Total=1122 [2021-01-06 20:33:20,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70149 states. [2021-01-06 20:33:23,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70149 to 17747. [2021-01-06 20:33:23,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17747 states. [2021-01-06 20:33:23,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17747 states to 17747 states and 26204 transitions. [2021-01-06 20:33:23,577 INFO L78 Accepts]: Start accepts. Automaton has 17747 states and 26204 transitions. Word has length 61 [2021-01-06 20:33:23,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:33:23,577 INFO L481 AbstractCegarLoop]: Abstraction has 17747 states and 26204 transitions. [2021-01-06 20:33:23,577 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-06 20:33:23,577 INFO L276 IsEmpty]: Start isEmpty. Operand 17747 states and 26204 transitions. [2021-01-06 20:33:23,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-01-06 20:33:23,581 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:33:23,581 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] [2021-01-06 20:33:23,581 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-01-06 20:33:23,582 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:33:23,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:33:23,582 INFO L82 PathProgramCache]: Analyzing trace with hash 11490693, now seen corresponding path program 1 times [2021-01-06 20:33:23,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:33:23,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142626437] [2021-01-06 20:33:23,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:33:23,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:33:23,813 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 20:33:23,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142626437] [2021-01-06 20:33:23,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:33:23,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-06 20:33:23,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792380288] [2021-01-06 20:33:23,815 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-06 20:33:23,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:33:23,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-06 20:33:23,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-01-06 20:33:23,816 INFO L87 Difference]: Start difference. First operand 17747 states and 26204 transitions. Second operand 10 states. [2021-01-06 20:33:32,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:33:32,949 INFO L93 Difference]: Finished difference Result 62167 states and 91389 transitions. [2021-01-06 20:33:32,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-01-06 20:33:32,949 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 61 [2021-01-06 20:33:32,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:33:33,000 INFO L225 Difference]: With dead ends: 62167 [2021-01-06 20:33:33,001 INFO L226 Difference]: Without dead ends: 45886 [2021-01-06 20:33:33,015 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=234, Invalid=636, Unknown=0, NotChecked=0, Total=870 [2021-01-06 20:33:33,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45886 states. [2021-01-06 20:33:36,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45886 to 17542. [2021-01-06 20:33:36,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17542 states. [2021-01-06 20:33:36,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17542 states to 17542 states and 25919 transitions. [2021-01-06 20:33:36,058 INFO L78 Accepts]: Start accepts. Automaton has 17542 states and 25919 transitions. Word has length 61 [2021-01-06 20:33:36,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:33:36,058 INFO L481 AbstractCegarLoop]: Abstraction has 17542 states and 25919 transitions. [2021-01-06 20:33:36,058 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-06 20:33:36,059 INFO L276 IsEmpty]: Start isEmpty. Operand 17542 states and 25919 transitions. [2021-01-06 20:33:36,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-01-06 20:33:36,061 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:33:36,061 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] [2021-01-06 20:33:36,061 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-01-06 20:33:36,061 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:33:36,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:33:36,062 INFO L82 PathProgramCache]: Analyzing trace with hash -746765663, now seen corresponding path program 1 times [2021-01-06 20:33:36,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:33:36,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910248251] [2021-01-06 20:33:36,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:33:36,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:33:36,105 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 20:33:36,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910248251] [2021-01-06 20:33:36,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:33:36,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:33:36,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013979007] [2021-01-06 20:33:36,106 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:33:36,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:33:36,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:33:36,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:33:36,107 INFO L87 Difference]: Start difference. First operand 17542 states and 25919 transitions. Second operand 3 states. [2021-01-06 20:33:39,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:33:39,064 INFO L93 Difference]: Finished difference Result 23971 states and 35267 transitions. [2021-01-06 20:33:39,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:33:39,066 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2021-01-06 20:33:39,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:33:39,082 INFO L225 Difference]: With dead ends: 23971 [2021-01-06 20:33:39,082 INFO L226 Difference]: Without dead ends: 17425 [2021-01-06 20:33:39,087 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 20:33:39,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17425 states. [2021-01-06 20:33:41,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17425 to 17423. [2021-01-06 20:33:41,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17423 states. [2021-01-06 20:33:41,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17423 states to 17423 states and 25221 transitions. [2021-01-06 20:33:41,860 INFO L78 Accepts]: Start accepts. Automaton has 17423 states and 25221 transitions. Word has length 62 [2021-01-06 20:33:41,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:33:41,860 INFO L481 AbstractCegarLoop]: Abstraction has 17423 states and 25221 transitions. [2021-01-06 20:33:41,860 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:33:41,860 INFO L276 IsEmpty]: Start isEmpty. Operand 17423 states and 25221 transitions. [2021-01-06 20:33:41,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-01-06 20:33:41,863 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:33:41,863 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] [2021-01-06 20:33:41,863 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-01-06 20:33:41,863 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:33:41,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:33:41,864 INFO L82 PathProgramCache]: Analyzing trace with hash -691619625, now seen corresponding path program 1 times [2021-01-06 20:33:41,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:33:41,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750932083] [2021-01-06 20:33:41,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:33:41,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:33:41,916 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 20:33:41,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750932083] [2021-01-06 20:33:41,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:33:41,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:33:41,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271187107] [2021-01-06 20:33:41,917 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:33:41,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:33:41,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:33:41,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:33:41,918 INFO L87 Difference]: Start difference. First operand 17423 states and 25221 transitions. Second operand 3 states. [2021-01-06 20:33:44,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:33:44,478 INFO L93 Difference]: Finished difference Result 23609 states and 34104 transitions. [2021-01-06 20:33:44,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:33:44,478 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2021-01-06 20:33:44,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:33:44,499 INFO L225 Difference]: With dead ends: 23609 [2021-01-06 20:33:44,499 INFO L226 Difference]: Without dead ends: 15786 [2021-01-06 20:33:44,510 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 20:33:44,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15786 states. [2021-01-06 20:33:47,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15786 to 15784. [2021-01-06 20:33:47,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15784 states. [2021-01-06 20:33:47,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15784 states to 15784 states and 22477 transitions. [2021-01-06 20:33:47,045 INFO L78 Accepts]: Start accepts. Automaton has 15784 states and 22477 transitions. Word has length 62 [2021-01-06 20:33:47,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:33:47,045 INFO L481 AbstractCegarLoop]: Abstraction has 15784 states and 22477 transitions. [2021-01-06 20:33:47,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:33:47,045 INFO L276 IsEmpty]: Start isEmpty. Operand 15784 states and 22477 transitions. [2021-01-06 20:33:47,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-01-06 20:33:47,048 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:33:47,048 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] [2021-01-06 20:33:47,048 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-01-06 20:33:47,048 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:33:47,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:33:47,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1051063940, now seen corresponding path program 1 times [2021-01-06 20:33:47,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:33:47,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300935648] [2021-01-06 20:33:47,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:33:47,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:33:47,091 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 20:33:47,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300935648] [2021-01-06 20:33:47,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:33:47,092 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:33:47,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91003371] [2021-01-06 20:33:47,093 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:33:47,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:33:47,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:33:47,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:33:47,094 INFO L87 Difference]: Start difference. First operand 15784 states and 22477 transitions. Second operand 3 states. [2021-01-06 20:33:49,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:33:49,326 INFO L93 Difference]: Finished difference Result 20567 states and 29232 transitions. [2021-01-06 20:33:49,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:33:49,327 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2021-01-06 20:33:49,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:33:49,342 INFO L225 Difference]: With dead ends: 20567 [2021-01-06 20:33:49,342 INFO L226 Difference]: Without dead ends: 13370 [2021-01-06 20:33:49,354 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 20:33:49,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13370 states. [2021-01-06 20:33:51,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13370 to 13368. [2021-01-06 20:33:51,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13368 states. [2021-01-06 20:33:51,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13368 states to 13368 states and 18741 transitions. [2021-01-06 20:33:51,271 INFO L78 Accepts]: Start accepts. Automaton has 13368 states and 18741 transitions. Word has length 62 [2021-01-06 20:33:51,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:33:51,271 INFO L481 AbstractCegarLoop]: Abstraction has 13368 states and 18741 transitions. [2021-01-06 20:33:51,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:33:51,271 INFO L276 IsEmpty]: Start isEmpty. Operand 13368 states and 18741 transitions. [2021-01-06 20:33:51,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-01-06 20:33:51,275 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:33:51,275 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 20:33:51,275 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-01-06 20:33:51,275 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:33:51,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:33:51,276 INFO L82 PathProgramCache]: Analyzing trace with hash -751537894, now seen corresponding path program 1 times [2021-01-06 20:33:51,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:33:51,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747767913] [2021-01-06 20:33:51,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:33:51,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:33:51,312 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 20:33:51,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747767913] [2021-01-06 20:33:51,313 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:33:51,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:33:51,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338223221] [2021-01-06 20:33:51,313 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:33:51,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:33:51,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:33:51,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:33:51,314 INFO L87 Difference]: Start difference. First operand 13368 states and 18741 transitions. Second operand 3 states. [2021-01-06 20:33:54,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:33:54,481 INFO L93 Difference]: Finished difference Result 24740 states and 34809 transitions. [2021-01-06 20:33:54,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:33:54,482 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2021-01-06 20:33:54,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:33:54,502 INFO L225 Difference]: With dead ends: 24740 [2021-01-06 20:33:54,502 INFO L226 Difference]: Without dead ends: 19617 [2021-01-06 20:33:54,509 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 20:33:54,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19617 states. [2021-01-06 20:33:56,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19617 to 13262. [2021-01-06 20:33:56,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13262 states. [2021-01-06 20:33:56,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13262 states to 13262 states and 18567 transitions. [2021-01-06 20:33:56,678 INFO L78 Accepts]: Start accepts. Automaton has 13262 states and 18567 transitions. Word has length 63 [2021-01-06 20:33:56,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:33:56,678 INFO L481 AbstractCegarLoop]: Abstraction has 13262 states and 18567 transitions. [2021-01-06 20:33:56,678 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:33:56,678 INFO L276 IsEmpty]: Start isEmpty. Operand 13262 states and 18567 transitions. [2021-01-06 20:33:56,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-01-06 20:33:56,681 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:33:56,682 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 20:33:56,682 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-01-06 20:33:56,682 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:33:56,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:33:56,683 INFO L82 PathProgramCache]: Analyzing trace with hash 296287221, now seen corresponding path program 1 times [2021-01-06 20:33:56,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:33:56,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209676201] [2021-01-06 20:33:56,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:33:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:33:57,575 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 15 [2021-01-06 20:33:57,844 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 20:33:57,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209676201] [2021-01-06 20:33:57,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:33:57,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-01-06 20:33:57,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659133337] [2021-01-06 20:33:57,845 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-01-06 20:33:57,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:33:57,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-01-06 20:33:57,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2021-01-06 20:33:57,846 INFO L87 Difference]: Start difference. First operand 13262 states and 18567 transitions. Second operand 23 states. [2021-01-06 20:33:58,129 WARN L197 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2021-01-06 20:33:59,173 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2021-01-06 20:33:59,499 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2021-01-06 20:33:59,760 WARN L197 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2021-01-06 20:34:00,272 WARN L197 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2021-01-06 20:34:00,631 WARN L197 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 97 [2021-01-06 20:34:00,812 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-01-06 20:34:01,060 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-01-06 20:34:01,660 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-06 20:34:02,230 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-06 20:34:16,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:34:16,174 INFO L93 Difference]: Finished difference Result 47783 states and 67546 transitions. [2021-01-06 20:34:16,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-01-06 20:34:16,175 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 63 [2021-01-06 20:34:16,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:34:16,243 INFO L225 Difference]: With dead ends: 47783 [2021-01-06 20:34:16,243 INFO L226 Difference]: Without dead ends: 47041 [2021-01-06 20:34:16,255 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=469, Invalid=2287, Unknown=0, NotChecked=0, Total=2756 [2021-01-06 20:34:16,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47041 states. [2021-01-06 20:34:19,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47041 to 13262. [2021-01-06 20:34:19,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13262 states. [2021-01-06 20:34:19,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13262 states to 13262 states and 18566 transitions. [2021-01-06 20:34:19,117 INFO L78 Accepts]: Start accepts. Automaton has 13262 states and 18566 transitions. Word has length 63 [2021-01-06 20:34:19,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:34:19,118 INFO L481 AbstractCegarLoop]: Abstraction has 13262 states and 18566 transitions. [2021-01-06 20:34:19,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2021-01-06 20:34:19,118 INFO L276 IsEmpty]: Start isEmpty. Operand 13262 states and 18566 transitions. [2021-01-06 20:34:19,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-01-06 20:34:19,121 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:34:19,121 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 20:34:19,121 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-01-06 20:34:19,121 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:34:19,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:34:19,122 INFO L82 PathProgramCache]: Analyzing trace with hash -678356547, now seen corresponding path program 1 times [2021-01-06 20:34:19,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:34:19,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671902266] [2021-01-06 20:34:19,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:34:19,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:34:20,213 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 20:34:20,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671902266] [2021-01-06 20:34:20,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:34:20,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-01-06 20:34:20,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736745230] [2021-01-06 20:34:20,215 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-01-06 20:34:20,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:34:20,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-01-06 20:34:20,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=454, Unknown=0, NotChecked=0, Total=506 [2021-01-06 20:34:20,216 INFO L87 Difference]: Start difference. First operand 13262 states and 18566 transitions. Second operand 23 states. [2021-01-06 20:34:20,591 WARN L197 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 84 [2021-01-06 20:34:21,206 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 30 [2021-01-06 20:34:21,662 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-01-06 20:34:21,878 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-06 20:34:22,319 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2021-01-06 20:34:22,652 WARN L197 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2021-01-06 20:34:23,255 WARN L197 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2021-01-06 20:34:23,679 WARN L197 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 96 [2021-01-06 20:34:23,888 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-06 20:34:24,189 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-06 20:34:24,627 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-06 20:34:24,928 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2021-01-06 20:34:25,273 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-06 20:34:25,669 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-01-06 20:34:26,064 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2021-01-06 20:34:26,378 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2021-01-06 20:34:29,704 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 32 [2021-01-06 20:34:43,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:34:43,386 INFO L93 Difference]: Finished difference Result 58128 states and 82232 transitions. [2021-01-06 20:34:43,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-01-06 20:34:43,388 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 63 [2021-01-06 20:34:43,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:34:43,465 INFO L225 Difference]: With dead ends: 58128 [2021-01-06 20:34:43,465 INFO L226 Difference]: Without dead ends: 57386 [2021-01-06 20:34:43,480 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=484, Invalid=2066, Unknown=0, NotChecked=0, Total=2550 [2021-01-06 20:34:43,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57386 states. [2021-01-06 20:34:46,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57386 to 13243. [2021-01-06 20:34:46,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13243 states. [2021-01-06 20:34:46,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13243 states to 13243 states and 18539 transitions. [2021-01-06 20:34:46,740 INFO L78 Accepts]: Start accepts. Automaton has 13243 states and 18539 transitions. Word has length 63 [2021-01-06 20:34:46,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:34:46,741 INFO L481 AbstractCegarLoop]: Abstraction has 13243 states and 18539 transitions. [2021-01-06 20:34:46,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2021-01-06 20:34:46,741 INFO L276 IsEmpty]: Start isEmpty. Operand 13243 states and 18539 transitions. [2021-01-06 20:34:46,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-01-06 20:34:46,743 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:34:46,743 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 20:34:46,744 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-01-06 20:34:46,744 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:34:46,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:34:46,744 INFO L82 PathProgramCache]: Analyzing trace with hash 639398585, now seen corresponding path program 1 times [2021-01-06 20:34:46,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:34:46,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62272654] [2021-01-06 20:34:46,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:34:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:34:47,801 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 20:34:47,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62272654] [2021-01-06 20:34:47,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:34:47,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-01-06 20:34:47,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12320265] [2021-01-06 20:34:47,803 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-01-06 20:34:47,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:34:47,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-01-06 20:34:47,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-01-06 20:34:47,804 INFO L87 Difference]: Start difference. First operand 13243 states and 18539 transitions. Second operand 23 states. [2021-01-06 20:34:48,115 WARN L197 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 92 [2021-01-06 20:34:48,774 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 36 [2021-01-06 20:34:48,991 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-01-06 20:34:49,446 WARN L197 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2021-01-06 20:34:49,779 WARN L197 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2021-01-06 20:34:50,376 WARN L197 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2021-01-06 20:34:50,767 WARN L197 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2021-01-06 20:34:50,972 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-01-06 20:34:51,277 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-01-06 20:34:51,716 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2021-01-06 20:34:52,251 WARN L197 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2021-01-06 20:34:52,593 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2021-01-06 20:34:53,750 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 36 [2021-01-06 20:34:59,625 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 32 [2021-01-06 20:35:11,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:35:11,748 INFO L93 Difference]: Finished difference Result 52108 states and 73752 transitions. [2021-01-06 20:35:11,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-01-06 20:35:11,749 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 63 [2021-01-06 20:35:11,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:35:11,818 INFO L225 Difference]: With dead ends: 52108 [2021-01-06 20:35:11,818 INFO L226 Difference]: Without dead ends: 51366 [2021-01-06 20:35:11,830 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=348, Invalid=1722, Unknown=0, NotChecked=0, Total=2070 [2021-01-06 20:35:11,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51366 states. [2021-01-06 20:35:15,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51366 to 13224. [2021-01-06 20:35:15,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13224 states. [2021-01-06 20:35:15,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13224 states to 13224 states and 18512 transitions. [2021-01-06 20:35:15,481 INFO L78 Accepts]: Start accepts. Automaton has 13224 states and 18512 transitions. Word has length 63 [2021-01-06 20:35:15,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:35:15,481 INFO L481 AbstractCegarLoop]: Abstraction has 13224 states and 18512 transitions. [2021-01-06 20:35:15,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2021-01-06 20:35:15,481 INFO L276 IsEmpty]: Start isEmpty. Operand 13224 states and 18512 transitions. [2021-01-06 20:35:15,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-01-06 20:35:15,484 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:35:15,484 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 20:35:15,484 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-01-06 20:35:15,484 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:35:15,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:35:15,485 INFO L82 PathProgramCache]: Analyzing trace with hash -422382988, now seen corresponding path program 1 times [2021-01-06 20:35:15,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:35:15,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447254150] [2021-01-06 20:35:15,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:35:15,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:35:15,515 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 20:35:15,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447254150] [2021-01-06 20:35:15,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:35:15,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:35:15,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471622384] [2021-01-06 20:35:15,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:35:15,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:35:15,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:35:15,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:35:15,518 INFO L87 Difference]: Start difference. First operand 13224 states and 18512 transitions. Second operand 3 states. [2021-01-06 20:35:20,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:35:20,698 INFO L93 Difference]: Finished difference Result 24427 states and 34336 transitions. [2021-01-06 20:35:20,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:35:20,699 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2021-01-06 20:35:20,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:35:20,718 INFO L225 Difference]: With dead ends: 24427 [2021-01-06 20:35:20,718 INFO L226 Difference]: Without dead ends: 19349 [2021-01-06 20:35:20,724 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 20:35:20,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19349 states. [2021-01-06 20:35:24,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19349 to 12994. [2021-01-06 20:35:24,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12994 states. [2021-01-06 20:35:24,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12994 states to 12994 states and 18173 transitions. [2021-01-06 20:35:24,132 INFO L78 Accepts]: Start accepts. Automaton has 12994 states and 18173 transitions. Word has length 63 [2021-01-06 20:35:24,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:35:24,132 INFO L481 AbstractCegarLoop]: Abstraction has 12994 states and 18173 transitions. [2021-01-06 20:35:24,132 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:35:24,132 INFO L276 IsEmpty]: Start isEmpty. Operand 12994 states and 18173 transitions. [2021-01-06 20:35:24,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-01-06 20:35:24,135 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:35:24,136 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 20:35:24,136 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-01-06 20:35:24,136 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:35:24,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:35:24,136 INFO L82 PathProgramCache]: Analyzing trace with hash 393964366, now seen corresponding path program 1 times [2021-01-06 20:35:24,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:35:24,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851034348] [2021-01-06 20:35:24,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:35:24,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:35:24,164 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 20:35:24,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851034348] [2021-01-06 20:35:24,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:35:24,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:35:24,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104163749] [2021-01-06 20:35:24,165 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:35:24,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:35:24,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:35:24,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:35:24,166 INFO L87 Difference]: Start difference. First operand 12994 states and 18173 transitions. Second operand 3 states. [2021-01-06 20:35:28,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:35:28,481 INFO L93 Difference]: Finished difference Result 19623 states and 27446 transitions. [2021-01-06 20:35:28,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:35:28,482 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2021-01-06 20:35:28,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:35:28,498 INFO L225 Difference]: With dead ends: 19623 [2021-01-06 20:35:28,498 INFO L226 Difference]: Without dead ends: 15614 [2021-01-06 20:35:28,503 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 20:35:28,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15614 states. [2021-01-06 20:35:31,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15614 to 12599. [2021-01-06 20:35:31,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12599 states. [2021-01-06 20:35:31,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12599 states to 12599 states and 17621 transitions. [2021-01-06 20:35:31,920 INFO L78 Accepts]: Start accepts. Automaton has 12599 states and 17621 transitions. Word has length 63 [2021-01-06 20:35:31,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:35:31,921 INFO L481 AbstractCegarLoop]: Abstraction has 12599 states and 17621 transitions. [2021-01-06 20:35:31,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:35:31,921 INFO L276 IsEmpty]: Start isEmpty. Operand 12599 states and 17621 transitions. [2021-01-06 20:35:31,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-01-06 20:35:31,923 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:35:31,923 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 20:35:31,923 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-01-06 20:35:31,923 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:35:31,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:35:31,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1222962444, now seen corresponding path program 1 times [2021-01-06 20:35:31,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:35:31,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469932101] [2021-01-06 20:35:31,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:35:31,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:35:32,391 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 20:35:32,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469932101] [2021-01-06 20:35:32,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:35:32,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-01-06 20:35:32,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895539914] [2021-01-06 20:35:32,393 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-01-06 20:35:32,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:35:32,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-01-06 20:35:32,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-01-06 20:35:32,394 INFO L87 Difference]: Start difference. First operand 12599 states and 17621 transitions. Second operand 12 states. [2021-01-06 20:35:32,817 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2021-01-06 20:35:33,024 WARN L197 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2021-01-06 20:35:33,249 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2021-01-06 20:35:33,483 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2021-01-06 20:35:34,079 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 40 [2021-01-06 20:35:44,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:35:44,010 INFO L93 Difference]: Finished difference Result 32441 states and 45594 transitions. [2021-01-06 20:35:44,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-01-06 20:35:44,011 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 64 [2021-01-06 20:35:44,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:35:44,043 INFO L225 Difference]: With dead ends: 32441 [2021-01-06 20:35:44,043 INFO L226 Difference]: Without dead ends: 30217 [2021-01-06 20:35:44,050 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=144, Invalid=456, Unknown=0, NotChecked=0, Total=600 [2021-01-06 20:35:44,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30217 states. [2021-01-06 20:35:47,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30217 to 12490. [2021-01-06 20:35:47,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12490 states. [2021-01-06 20:35:48,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12490 states to 12490 states and 17464 transitions. [2021-01-06 20:35:48,011 INFO L78 Accepts]: Start accepts. Automaton has 12490 states and 17464 transitions. Word has length 64 [2021-01-06 20:35:48,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:35:48,011 INFO L481 AbstractCegarLoop]: Abstraction has 12490 states and 17464 transitions. [2021-01-06 20:35:48,012 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-01-06 20:35:48,012 INFO L276 IsEmpty]: Start isEmpty. Operand 12490 states and 17464 transitions. [2021-01-06 20:35:48,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-01-06 20:35:48,014 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:35:48,014 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 20:35:48,014 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-01-06 20:35:48,014 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:35:48,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:35:48,015 INFO L82 PathProgramCache]: Analyzing trace with hash 1280220746, now seen corresponding path program 1 times [2021-01-06 20:35:48,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:35:48,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670199564] [2021-01-06 20:35:48,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:35:48,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:35:49,006 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 20:35:49,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670199564] [2021-01-06 20:35:49,007 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:35:49,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-06 20:35:49,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519615263] [2021-01-06 20:35:49,008 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-06 20:35:49,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:35:49,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-06 20:35:49,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-01-06 20:35:49,009 INFO L87 Difference]: Start difference. First operand 12490 states and 17464 transitions. Second operand 18 states. [2021-01-06 20:35:49,260 WARN L197 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2021-01-06 20:35:49,565 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 31 [2021-01-06 20:35:49,739 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2021-01-06 20:35:49,976 WARN L197 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 34 [2021-01-06 20:35:50,274 WARN L197 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-01-06 20:35:50,689 WARN L197 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-01-06 20:35:51,043 WARN L197 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 53 [2021-01-06 20:35:51,687 WARN L197 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2021-01-06 20:35:52,309 WARN L197 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 83 [2021-01-06 20:35:52,718 WARN L197 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2021-01-06 20:35:52,911 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 37 [2021-01-06 20:35:53,321 WARN L197 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2021-01-06 20:35:53,662 WARN L197 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2021-01-06 20:35:54,181 WARN L197 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2021-01-06 20:35:54,459 WARN L197 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2021-01-06 20:35:54,899 WARN L197 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2021-01-06 20:35:55,088 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 46 [2021-01-06 20:35:55,601 WARN L197 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-01-06 20:35:55,988 WARN L197 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 62 [2021-01-06 20:35:56,257 WARN L197 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-01-06 20:35:56,435 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2021-01-06 20:35:56,578 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2021-01-06 20:35:56,914 WARN L197 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-06 20:35:57,267 WARN L197 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-06 20:35:57,655 WARN L197 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2021-01-06 20:35:58,127 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2021-01-06 20:35:58,656 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-01-06 20:36:00,061 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2021-01-06 20:36:01,438 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2021-01-06 20:36:10,547 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-01-06 20:36:13,259 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2021-01-06 20:36:21,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:36:21,045 INFO L93 Difference]: Finished difference Result 58229 states and 82282 transitions. [2021-01-06 20:36:21,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-01-06 20:36:21,047 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 64 [2021-01-06 20:36:21,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:36:21,118 INFO L225 Difference]: With dead ends: 58229 [2021-01-06 20:36:21,119 INFO L226 Difference]: Without dead ends: 57073 [2021-01-06 20:36:21,131 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 680 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=596, Invalid=2056, Unknown=0, NotChecked=0, Total=2652 [2021-01-06 20:36:21,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57073 states.