/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 10:47:49,740 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 10:47:49,743 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 10:47:49,780 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 10:47:49,781 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 10:47:49,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 10:47:49,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 10:47:49,787 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 10:47:49,790 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 10:47:49,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 10:47:49,793 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 10:47:49,794 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 10:47:49,795 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 10:47:49,796 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 10:47:49,798 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 10:47:49,800 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 10:47:49,821 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 10:47:49,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 10:47:49,828 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 10:47:49,830 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 10:47:49,832 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 10:47:49,834 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 10:47:49,836 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 10:47:49,837 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 10:47:49,840 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 10:47:49,840 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 10:47:49,841 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 10:47:49,842 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 10:47:49,843 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 10:47:49,844 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 10:47:49,844 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 10:47:49,845 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 10:47:49,846 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 10:47:49,847 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 10:47:49,849 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 10:47:49,849 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 10:47:49,850 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 10:47:49,850 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 10:47:49,851 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 10:47:49,852 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 10:47:49,853 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 10:47:49,854 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 10:47:49,882 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 10:47:49,882 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 10:47:49,884 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 10:47:49,884 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 10:47:49,885 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 10:47:49,885 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 10:47:49,885 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 10:47:49,886 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 10:47:49,886 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 10:47:49,886 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 10:47:49,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 10:47:49,887 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 10:47:49,887 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 10:47:49,887 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 10:47:49,888 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 10:47:49,888 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 10:47:49,888 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 10:47:49,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 10:47:49,889 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 10:47:49,889 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 10:47:49,890 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 10:47:49,890 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 10:47:49,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 10:47:49,891 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 10:47:49,891 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 10:47:49,891 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 10:47:50,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 10:47:50,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 10:47:50,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 10:47:50,313 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 10:47:50,314 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 10:47:50,315 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2020-12-23 10:47:50,396 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/fa4ae0ece/df326da9b57b4f209aae6cfc80ebd006/FLAG31ceb6ebe [2020-12-23 10:47:51,062 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 10:47:51,065 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2020-12-23 10:47:51,092 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/fa4ae0ece/df326da9b57b4f209aae6cfc80ebd006/FLAG31ceb6ebe [2020-12-23 10:47:51,342 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/fa4ae0ece/df326da9b57b4f209aae6cfc80ebd006 [2020-12-23 10:47:51,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 10:47:51,348 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 10:47:51,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 10:47:51,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 10:47:51,358 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 10:47:51,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 10:47:51" (1/1) ... [2020-12-23 10:47:51,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52c46d91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:47:51, skipping insertion in model container [2020-12-23 10:47:51,362 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 10:47:51" (1/1) ... [2020-12-23 10:47:51,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 10:47:51,448 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_10566~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_10664~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~1,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_10824~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_2~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~1,] [2020-12-23 10:47:51,697 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[6703,6716] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~2,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~2,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] [2020-12-23 10:47:51,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 10:47:51,796 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_10566~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_10664~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~1,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_10824~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_2~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~1,] [2020-12-23 10:47:51,855 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.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[6703,6716] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~2,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~2,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] [2020-12-23 10:47:51,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 10:47:51,939 INFO L208 MainTranslator]: Completed translation [2020-12-23 10:47:51,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:47:51 WrapperNode [2020-12-23 10:47:51,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 10:47:51,946 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 10:47:51,946 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 10:47:51,946 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 10:47:51,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:47:51" (1/1) ... [2020-12-23 10:47:51,968 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:47:51" (1/1) ... [2020-12-23 10:47:52,022 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 10:47:52,023 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 10:47:52,023 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 10:47:52,023 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 10:47:52,034 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:47:51" (1/1) ... [2020-12-23 10:47:52,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:47:51" (1/1) ... [2020-12-23 10:47:52,040 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:47:51" (1/1) ... [2020-12-23 10:47:52,040 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:47:51" (1/1) ... [2020-12-23 10:47:52,051 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:47:51" (1/1) ... [2020-12-23 10:47:52,085 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:47:51" (1/1) ... [2020-12-23 10:47:52,088 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:47:51" (1/1) ... [2020-12-23 10:47:52,094 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 10:47:52,095 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 10:47:52,095 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 10:47:52,095 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 10:47:52,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:47:51" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 10:47:52,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 10:47:52,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 10:47:52,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 10:47:52,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 10:47:53,181 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 10:47:53,182 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-23 10:47:53,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 10:47:53 BoogieIcfgContainer [2020-12-23 10:47:53,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 10:47:53,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 10:47:53,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 10:47:53,193 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 10:47:53,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 10:47:51" (1/3) ... [2020-12-23 10:47:53,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e44e34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 10:47:53, skipping insertion in model container [2020-12-23 10:47:53,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:47:51" (2/3) ... [2020-12-23 10:47:53,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e44e34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 10:47:53, skipping insertion in model container [2020-12-23 10:47:53,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 10:47:53" (3/3) ... [2020-12-23 10:47:53,198 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2020-12-23 10:47:53,209 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 10:47:53,215 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 10:47:53,232 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 10:47:53,260 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 10:47:53,260 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 10:47:53,261 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 10:47:53,261 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 10:47:53,261 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 10:47:53,261 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 10:47:53,261 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 10:47:53,261 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 10:47:53,282 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states. [2020-12-23 10:47:53,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-23 10:47:53,291 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:47:53,292 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] [2020-12-23 10:47:53,292 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:47:53,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:47:53,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1270648051, now seen corresponding path program 1 times [2020-12-23 10:47:53,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:47:53,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922465559] [2020-12-23 10:47:53,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:47:53,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:47:53,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:47:53,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922465559] [2020-12-23 10:47:53,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:47:53,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:47:53,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858274782] [2020-12-23 10:47:53,843 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:47:53,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:47:53,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:47:53,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:47:53,871 INFO L87 Difference]: Start difference. First operand 170 states. Second operand 3 states. [2020-12-23 10:47:54,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:47:54,084 INFO L93 Difference]: Finished difference Result 345 states and 567 transitions. [2020-12-23 10:47:54,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:47:54,089 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2020-12-23 10:47:54,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:47:54,127 INFO L225 Difference]: With dead ends: 345 [2020-12-23 10:47:54,127 INFO L226 Difference]: Without dead ends: 260 [2020-12-23 10:47:54,133 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:47:54,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-12-23 10:47:54,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 258. [2020-12-23 10:47:54,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-12-23 10:47:54,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 388 transitions. [2020-12-23 10:47:54,256 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 388 transitions. Word has length 63 [2020-12-23 10:47:54,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:47:54,257 INFO L481 AbstractCegarLoop]: Abstraction has 258 states and 388 transitions. [2020-12-23 10:47:54,257 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:47:54,258 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 388 transitions. [2020-12-23 10:47:54,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-23 10:47:54,263 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:47:54,264 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] [2020-12-23 10:47:54,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 10:47:54,266 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:47:54,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:47:54,268 INFO L82 PathProgramCache]: Analyzing trace with hash 473041692, now seen corresponding path program 1 times [2020-12-23 10:47:54,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:47:54,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200261513] [2020-12-23 10:47:54,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:47:54,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:47:54,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:47:54,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200261513] [2020-12-23 10:47:54,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:47:54,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 10:47:54,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206326277] [2020-12-23 10:47:54,518 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 10:47:54,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:47:54,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 10:47:54,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:47:54,519 INFO L87 Difference]: Start difference. First operand 258 states and 388 transitions. Second operand 6 states. [2020-12-23 10:47:54,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:47:54,793 INFO L93 Difference]: Finished difference Result 958 states and 1480 transitions. [2020-12-23 10:47:54,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 10:47:54,794 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2020-12-23 10:47:54,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:47:54,801 INFO L225 Difference]: With dead ends: 958 [2020-12-23 10:47:54,801 INFO L226 Difference]: Without dead ends: 758 [2020-12-23 10:47:54,827 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:47:54,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2020-12-23 10:47:54,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 752. [2020-12-23 10:47:54,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 752 states. [2020-12-23 10:47:54,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1152 transitions. [2020-12-23 10:47:54,919 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1152 transitions. Word has length 64 [2020-12-23 10:47:54,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:47:54,920 INFO L481 AbstractCegarLoop]: Abstraction has 752 states and 1152 transitions. [2020-12-23 10:47:54,920 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 10:47:54,921 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1152 transitions. [2020-12-23 10:47:54,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-12-23 10:47:54,930 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:47:54,931 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:47:54,931 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 10:47:54,931 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:47:54,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:47:54,935 INFO L82 PathProgramCache]: Analyzing trace with hash -222648813, now seen corresponding path program 1 times [2020-12-23 10:47:54,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:47:54,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206420088] [2020-12-23 10:47:54,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:47:55,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:47:55,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:47:55,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206420088] [2020-12-23 10:47:55,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:47:55,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:47:55,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152452664] [2020-12-23 10:47:55,166 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 10:47:55,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:47:55,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 10:47:55,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:47:55,169 INFO L87 Difference]: Start difference. First operand 752 states and 1152 transitions. Second operand 6 states. [2020-12-23 10:47:55,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:47:55,685 INFO L93 Difference]: Finished difference Result 2516 states and 3915 transitions. [2020-12-23 10:47:55,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:47:55,686 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2020-12-23 10:47:55,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:47:55,699 INFO L225 Difference]: With dead ends: 2516 [2020-12-23 10:47:55,699 INFO L226 Difference]: Without dead ends: 1810 [2020-12-23 10:47:55,702 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 [2020-12-23 10:47:55,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1810 states. [2020-12-23 10:47:55,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1810 to 1806. [2020-12-23 10:47:55,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1806 states. [2020-12-23 10:47:55,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1806 states to 1806 states and 2801 transitions. [2020-12-23 10:47:55,838 INFO L78 Accepts]: Start accepts. Automaton has 1806 states and 2801 transitions. Word has length 65 [2020-12-23 10:47:55,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:47:55,838 INFO L481 AbstractCegarLoop]: Abstraction has 1806 states and 2801 transitions. [2020-12-23 10:47:55,838 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 10:47:55,838 INFO L276 IsEmpty]: Start isEmpty. Operand 1806 states and 2801 transitions. [2020-12-23 10:47:55,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-12-23 10:47:55,840 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:47:55,840 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:47:55,841 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 10:47:55,841 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:47:55,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:47:55,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1106030069, now seen corresponding path program 1 times [2020-12-23 10:47:55,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:47:55,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644270021] [2020-12-23 10:47:55,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:47:55,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:47:55,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:47:55,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644270021] [2020-12-23 10:47:55,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:47:55,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:47:55,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813218178] [2020-12-23 10:47:55,967 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 10:47:55,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:47:55,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 10:47:55,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:47:55,969 INFO L87 Difference]: Start difference. First operand 1806 states and 2801 transitions. Second operand 6 states. [2020-12-23 10:47:56,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:47:56,611 INFO L93 Difference]: Finished difference Result 6246 states and 9774 transitions. [2020-12-23 10:47:56,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:47:56,611 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2020-12-23 10:47:56,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:47:56,637 INFO L225 Difference]: With dead ends: 6246 [2020-12-23 10:47:56,637 INFO L226 Difference]: Without dead ends: 4536 [2020-12-23 10:47:56,641 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-23 10:47:56,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4536 states. [2020-12-23 10:47:56,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4536 to 4126. [2020-12-23 10:47:56,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4126 states. [2020-12-23 10:47:56,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4126 states to 4126 states and 6424 transitions. [2020-12-23 10:47:56,964 INFO L78 Accepts]: Start accepts. Automaton has 4126 states and 6424 transitions. Word has length 65 [2020-12-23 10:47:56,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:47:56,965 INFO L481 AbstractCegarLoop]: Abstraction has 4126 states and 6424 transitions. [2020-12-23 10:47:56,965 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 10:47:56,965 INFO L276 IsEmpty]: Start isEmpty. Operand 4126 states and 6424 transitions. [2020-12-23 10:47:56,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-12-23 10:47:56,967 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:47:56,967 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:47:56,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 10:47:56,968 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:47:56,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:47:56,969 INFO L82 PathProgramCache]: Analyzing trace with hash 244768548, now seen corresponding path program 1 times [2020-12-23 10:47:56,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:47:56,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678521450] [2020-12-23 10:47:56,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:47:56,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:47:57,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:47:57,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678521450] [2020-12-23 10:47:57,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:47:57,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:47:57,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103385074] [2020-12-23 10:47:57,062 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 10:47:57,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:47:57,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 10:47:57,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:47:57,064 INFO L87 Difference]: Start difference. First operand 4126 states and 6424 transitions. Second operand 6 states. [2020-12-23 10:47:58,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:47:58,114 INFO L93 Difference]: Finished difference Result 15475 states and 24159 transitions. [2020-12-23 10:47:58,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:47:58,115 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2020-12-23 10:47:58,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:47:58,180 INFO L225 Difference]: With dead ends: 15475 [2020-12-23 10:47:58,181 INFO L226 Difference]: Without dead ends: 11418 [2020-12-23 10:47:58,189 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 [2020-12-23 10:47:58,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11418 states. [2020-12-23 10:47:58,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11418 to 11414. [2020-12-23 10:47:58,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11414 states. [2020-12-23 10:47:59,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11414 states to 11414 states and 17736 transitions. [2020-12-23 10:47:59,033 INFO L78 Accepts]: Start accepts. Automaton has 11414 states and 17736 transitions. Word has length 65 [2020-12-23 10:47:59,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:47:59,033 INFO L481 AbstractCegarLoop]: Abstraction has 11414 states and 17736 transitions. [2020-12-23 10:47:59,034 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 10:47:59,034 INFO L276 IsEmpty]: Start isEmpty. Operand 11414 states and 17736 transitions. [2020-12-23 10:47:59,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-23 10:47:59,037 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:47:59,037 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:47:59,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 10:47:59,038 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:47:59,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:47:59,039 INFO L82 PathProgramCache]: Analyzing trace with hash 2050472616, now seen corresponding path program 1 times [2020-12-23 10:47:59,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:47:59,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924613779] [2020-12-23 10:47:59,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:47:59,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:47:59,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:47:59,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924613779] [2020-12-23 10:47:59,193 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:47:59,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:47:59,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891471213] [2020-12-23 10:47:59,194 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 10:47:59,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:47:59,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 10:47:59,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:47:59,195 INFO L87 Difference]: Start difference. First operand 11414 states and 17736 transitions. Second operand 5 states. [2020-12-23 10:48:00,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:48:00,544 INFO L93 Difference]: Finished difference Result 21040 states and 32458 transitions. [2020-12-23 10:48:00,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 10:48:00,545 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 66 [2020-12-23 10:48:00,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:48:00,639 INFO L225 Difference]: With dead ends: 21040 [2020-12-23 10:48:00,639 INFO L226 Difference]: Without dead ends: 21038 [2020-12-23 10:48:00,647 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:48:00,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21038 states. [2020-12-23 10:48:01,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21038 to 11612. [2020-12-23 10:48:01,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11612 states. [2020-12-23 10:48:01,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11612 states to 11612 states and 17934 transitions. [2020-12-23 10:48:01,699 INFO L78 Accepts]: Start accepts. Automaton has 11612 states and 17934 transitions. Word has length 66 [2020-12-23 10:48:01,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:48:01,700 INFO L481 AbstractCegarLoop]: Abstraction has 11612 states and 17934 transitions. [2020-12-23 10:48:01,700 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 10:48:01,701 INFO L276 IsEmpty]: Start isEmpty. Operand 11612 states and 17934 transitions. [2020-12-23 10:48:01,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-23 10:48:01,705 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:48:01,706 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:48:01,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 10:48:01,706 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:48:01,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:48:01,707 INFO L82 PathProgramCache]: Analyzing trace with hash -598564162, now seen corresponding path program 1 times [2020-12-23 10:48:01,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:48:01,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86959598] [2020-12-23 10:48:01,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:48:01,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:48:02,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:48:02,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86959598] [2020-12-23 10:48:02,007 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:48:02,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 10:48:02,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778176007] [2020-12-23 10:48:02,007 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 10:48:02,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:48:02,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 10:48:02,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-12-23 10:48:02,009 INFO L87 Difference]: Start difference. First operand 11612 states and 17934 transitions. Second operand 10 states. [2020-12-23 10:48:08,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:48:08,104 INFO L93 Difference]: Finished difference Result 70277 states and 108533 transitions. [2020-12-23 10:48:08,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-12-23 10:48:08,105 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 67 [2020-12-23 10:48:08,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:48:08,324 INFO L225 Difference]: With dead ends: 70277 [2020-12-23 10:48:08,324 INFO L226 Difference]: Without dead ends: 62835 [2020-12-23 10:48:08,360 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 461 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=391, Invalid=1249, Unknown=0, NotChecked=0, Total=1640 [2020-12-23 10:48:08,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62835 states. [2020-12-23 10:48:10,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62835 to 11725. [2020-12-23 10:48:10,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11725 states. [2020-12-23 10:48:10,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11725 states to 11725 states and 18079 transitions. [2020-12-23 10:48:10,293 INFO L78 Accepts]: Start accepts. Automaton has 11725 states and 18079 transitions. Word has length 67 [2020-12-23 10:48:10,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:48:10,293 INFO L481 AbstractCegarLoop]: Abstraction has 11725 states and 18079 transitions. [2020-12-23 10:48:10,293 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 10:48:10,293 INFO L276 IsEmpty]: Start isEmpty. Operand 11725 states and 18079 transitions. [2020-12-23 10:48:10,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-23 10:48:10,310 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:48:10,316 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:48:10,316 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 10:48:10,317 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:48:10,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:48:10,317 INFO L82 PathProgramCache]: Analyzing trace with hash -354598274, now seen corresponding path program 1 times [2020-12-23 10:48:10,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:48:10,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742161587] [2020-12-23 10:48:10,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:48:10,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:48:10,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:48:10,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742161587] [2020-12-23 10:48:10,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:48:10,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 10:48:10,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284292833] [2020-12-23 10:48:10,555 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 10:48:10,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:48:10,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 10:48:10,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-12-23 10:48:10,556 INFO L87 Difference]: Start difference. First operand 11725 states and 18079 transitions. Second operand 10 states. [2020-12-23 10:48:16,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:48:16,538 INFO L93 Difference]: Finished difference Result 46982 states and 72196 transitions. [2020-12-23 10:48:16,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-12-23 10:48:16,539 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 67 [2020-12-23 10:48:16,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:48:16,616 INFO L225 Difference]: With dead ends: 46982 [2020-12-23 10:48:16,616 INFO L226 Difference]: Without dead ends: 44518 [2020-12-23 10:48:16,633 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=319, Invalid=871, Unknown=0, NotChecked=0, Total=1190 [2020-12-23 10:48:16,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44518 states. [2020-12-23 10:48:18,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44518 to 11725. [2020-12-23 10:48:18,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11725 states. [2020-12-23 10:48:18,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11725 states to 11725 states and 18077 transitions. [2020-12-23 10:48:18,366 INFO L78 Accepts]: Start accepts. Automaton has 11725 states and 18077 transitions. Word has length 67 [2020-12-23 10:48:18,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:48:18,366 INFO L481 AbstractCegarLoop]: Abstraction has 11725 states and 18077 transitions. [2020-12-23 10:48:18,367 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 10:48:18,367 INFO L276 IsEmpty]: Start isEmpty. Operand 11725 states and 18077 transitions. [2020-12-23 10:48:18,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-23 10:48:18,370 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:48:18,370 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:48:18,370 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 10:48:18,370 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:48:18,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:48:18,370 INFO L82 PathProgramCache]: Analyzing trace with hash 878399134, now seen corresponding path program 1 times [2020-12-23 10:48:18,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:48:18,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369026410] [2020-12-23 10:48:18,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:48:18,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:48:18,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:48:18,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369026410] [2020-12-23 10:48:18,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:48:18,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 10:48:18,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680902341] [2020-12-23 10:48:18,628 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 10:48:18,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:48:18,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 10:48:18,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-12-23 10:48:18,629 INFO L87 Difference]: Start difference. First operand 11725 states and 18077 transitions. Second operand 10 states. [2020-12-23 10:48:26,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:48:26,003 INFO L93 Difference]: Finished difference Result 54650 states and 84169 transitions. [2020-12-23 10:48:26,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-12-23 10:48:26,004 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 67 [2020-12-23 10:48:26,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:48:26,089 INFO L225 Difference]: With dead ends: 54650 [2020-12-23 10:48:26,090 INFO L226 Difference]: Without dead ends: 50226 [2020-12-23 10:48:26,114 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=391, Invalid=1249, Unknown=0, NotChecked=0, Total=1640 [2020-12-23 10:48:26,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50226 states. [2020-12-23 10:48:27,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50226 to 11942. [2020-12-23 10:48:27,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11942 states. [2020-12-23 10:48:27,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11942 states to 11942 states and 18355 transitions. [2020-12-23 10:48:27,609 INFO L78 Accepts]: Start accepts. Automaton has 11942 states and 18355 transitions. Word has length 67 [2020-12-23 10:48:27,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:48:27,609 INFO L481 AbstractCegarLoop]: Abstraction has 11942 states and 18355 transitions. [2020-12-23 10:48:27,609 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 10:48:27,610 INFO L276 IsEmpty]: Start isEmpty. Operand 11942 states and 18355 transitions. [2020-12-23 10:48:27,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-23 10:48:27,614 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:48:27,614 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:48:27,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 10:48:27,614 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:48:27,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:48:27,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1495323364, now seen corresponding path program 1 times [2020-12-23 10:48:27,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:48:27,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510646436] [2020-12-23 10:48:27,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:48:27,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:48:27,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:48:27,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510646436] [2020-12-23 10:48:27,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:48:27,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 10:48:27,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387811246] [2020-12-23 10:48:27,675 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 10:48:27,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:48:27,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 10:48:27,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:48:27,676 INFO L87 Difference]: Start difference. First operand 11942 states and 18355 transitions. Second operand 5 states. [2020-12-23 10:48:29,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:48:29,880 INFO L93 Difference]: Finished difference Result 32581 states and 50133 transitions. [2020-12-23 10:48:29,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:48:29,881 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 67 [2020-12-23 10:48:29,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:48:29,917 INFO L225 Difference]: With dead ends: 32581 [2020-12-23 10:48:29,917 INFO L226 Difference]: Without dead ends: 20687 [2020-12-23 10:48:29,940 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 [2020-12-23 10:48:29,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20687 states. [2020-12-23 10:48:32,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20687 to 20685. [2020-12-23 10:48:32,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20685 states. [2020-12-23 10:48:32,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20685 states to 20685 states and 31632 transitions. [2020-12-23 10:48:32,391 INFO L78 Accepts]: Start accepts. Automaton has 20685 states and 31632 transitions. Word has length 67 [2020-12-23 10:48:32,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:48:32,391 INFO L481 AbstractCegarLoop]: Abstraction has 20685 states and 31632 transitions. [2020-12-23 10:48:32,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 10:48:32,391 INFO L276 IsEmpty]: Start isEmpty. Operand 20685 states and 31632 transitions. [2020-12-23 10:48:32,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-23 10:48:32,401 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:48:32,401 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:48:32,401 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 10:48:32,401 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:48:32,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:48:32,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1249029969, now seen corresponding path program 1 times [2020-12-23 10:48:32,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:48:32,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955961071] [2020-12-23 10:48:32,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:48:32,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:48:32,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:48:32,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955961071] [2020-12-23 10:48:32,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:48:32,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 10:48:32,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892131727] [2020-12-23 10:48:32,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 10:48:32,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:48:32,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 10:48:32,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 10:48:32,543 INFO L87 Difference]: Start difference. First operand 20685 states and 31632 transitions. Second operand 4 states. [2020-12-23 10:48:37,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:48:37,192 INFO L93 Difference]: Finished difference Result 56209 states and 85913 transitions. [2020-12-23 10:48:37,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:48:37,192 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 68 [2020-12-23 10:48:37,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:48:37,264 INFO L225 Difference]: With dead ends: 56209 [2020-12-23 10:48:37,264 INFO L226 Difference]: Without dead ends: 36923 [2020-12-23 10:48:37,295 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:48:37,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36923 states. [2020-12-23 10:48:41,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36923 to 36597. [2020-12-23 10:48:41,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36597 states. [2020-12-23 10:48:41,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36597 states to 36597 states and 55362 transitions. [2020-12-23 10:48:41,469 INFO L78 Accepts]: Start accepts. Automaton has 36597 states and 55362 transitions. Word has length 68 [2020-12-23 10:48:41,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:48:41,469 INFO L481 AbstractCegarLoop]: Abstraction has 36597 states and 55362 transitions. [2020-12-23 10:48:41,469 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 10:48:41,470 INFO L276 IsEmpty]: Start isEmpty. Operand 36597 states and 55362 transitions. [2020-12-23 10:48:41,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-23 10:48:41,474 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:48:41,475 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:48:41,475 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-23 10:48:41,475 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:48:41,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:48:41,475 INFO L82 PathProgramCache]: Analyzing trace with hash -264834943, now seen corresponding path program 1 times [2020-12-23 10:48:41,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:48:41,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586188305] [2020-12-23 10:48:41,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:48:41,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:48:41,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:48:41,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586188305] [2020-12-23 10:48:41,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:48:41,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:48:41,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499429699] [2020-12-23 10:48:41,538 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:48:41,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:48:41,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:48:41,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:48:41,539 INFO L87 Difference]: Start difference. First operand 36597 states and 55362 transitions. Second operand 3 states. [2020-12-23 10:48:47,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:48:47,154 INFO L93 Difference]: Finished difference Result 68379 states and 103570 transitions. [2020-12-23 10:48:47,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:48:47,154 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-12-23 10:48:47,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:48:47,230 INFO L225 Difference]: With dead ends: 68379 [2020-12-23 10:48:47,231 INFO L226 Difference]: Without dead ends: 47657 [2020-12-23 10:48:47,253 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:48:47,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47657 states. [2020-12-23 10:48:52,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47657 to 46911. [2020-12-23 10:48:52,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46911 states. [2020-12-23 10:48:52,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46911 states to 46911 states and 70056 transitions. [2020-12-23 10:48:52,876 INFO L78 Accepts]: Start accepts. Automaton has 46911 states and 70056 transitions. Word has length 68 [2020-12-23 10:48:52,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:48:52,877 INFO L481 AbstractCegarLoop]: Abstraction has 46911 states and 70056 transitions. [2020-12-23 10:48:52,877 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:48:52,877 INFO L276 IsEmpty]: Start isEmpty. Operand 46911 states and 70056 transitions. [2020-12-23 10:48:52,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-23 10:48:52,881 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:48:52,882 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:48:52,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-23 10:48:52,882 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:48:52,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:48:52,882 INFO L82 PathProgramCache]: Analyzing trace with hash -660438559, now seen corresponding path program 1 times [2020-12-23 10:48:52,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:48:52,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870902445] [2020-12-23 10:48:52,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:48:52,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:48:52,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:48:52,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870902445] [2020-12-23 10:48:52,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:48:52,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:48:52,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677956567] [2020-12-23 10:48:52,927 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:48:52,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:48:52,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:48:52,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:48:52,928 INFO L87 Difference]: Start difference. First operand 46911 states and 70056 transitions. Second operand 3 states. [2020-12-23 10:49:00,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:49:00,552 INFO L93 Difference]: Finished difference Result 105134 states and 157096 transitions. [2020-12-23 10:49:00,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:49:00,552 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-12-23 10:49:00,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:49:00,645 INFO L225 Difference]: With dead ends: 105134 [2020-12-23 10:49:00,645 INFO L226 Difference]: Without dead ends: 63941 [2020-12-23 10:49:00,680 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:49:00,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63941 states. [2020-12-23 10:49:06,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63941 to 45771. [2020-12-23 10:49:06,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45771 states. [2020-12-23 10:49:06,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45771 states to 45771 states and 67469 transitions. [2020-12-23 10:49:06,600 INFO L78 Accepts]: Start accepts. Automaton has 45771 states and 67469 transitions. Word has length 68 [2020-12-23 10:49:06,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:49:06,600 INFO L481 AbstractCegarLoop]: Abstraction has 45771 states and 67469 transitions. [2020-12-23 10:49:06,600 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:49:06,600 INFO L276 IsEmpty]: Start isEmpty. Operand 45771 states and 67469 transitions. [2020-12-23 10:49:06,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-23 10:49:06,604 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:49:06,604 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:49:06,604 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-23 10:49:06,604 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:49:06,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:49:06,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1777284032, now seen corresponding path program 1 times [2020-12-23 10:49:06,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:49:06,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549170268] [2020-12-23 10:49:06,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:49:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:49:06,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:49:06,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549170268] [2020-12-23 10:49:06,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:49:06,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:49:06,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748030716] [2020-12-23 10:49:06,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:49:06,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:49:06,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:49:06,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:49:06,650 INFO L87 Difference]: Start difference. First operand 45771 states and 67469 transitions. Second operand 3 states. [2020-12-23 10:49:13,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:49:13,141 INFO L93 Difference]: Finished difference Result 65157 states and 95596 transitions. [2020-12-23 10:49:13,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:49:13,142 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-12-23 10:49:13,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:49:13,201 INFO L225 Difference]: With dead ends: 65157 [2020-12-23 10:49:13,201 INFO L226 Difference]: Without dead ends: 52001 [2020-12-23 10:49:13,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:49:13,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52001 states. [2020-12-23 10:49:19,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52001 to 48669. [2020-12-23 10:49:19,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48669 states. [2020-12-23 10:49:19,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48669 states to 48669 states and 70456 transitions. [2020-12-23 10:49:19,404 INFO L78 Accepts]: Start accepts. Automaton has 48669 states and 70456 transitions. Word has length 68 [2020-12-23 10:49:19,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:49:19,404 INFO L481 AbstractCegarLoop]: Abstraction has 48669 states and 70456 transitions. [2020-12-23 10:49:19,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:49:19,404 INFO L276 IsEmpty]: Start isEmpty. Operand 48669 states and 70456 transitions. [2020-12-23 10:49:19,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-23 10:49:19,409 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:49:19,409 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:49:19,409 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-23 10:49:19,409 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:49:19,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:49:19,410 INFO L82 PathProgramCache]: Analyzing trace with hash -450188991, now seen corresponding path program 1 times [2020-12-23 10:49:19,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:49:19,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643867643] [2020-12-23 10:49:19,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:49:19,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:49:19,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:49:19,492 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643867643] [2020-12-23 10:49:19,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:49:19,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 10:49:19,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409994764] [2020-12-23 10:49:19,493 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 10:49:19,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:49:19,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 10:49:19,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:49:19,494 INFO L87 Difference]: Start difference. First operand 48669 states and 70456 transitions. Second operand 6 states. [2020-12-23 10:49:38,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:49:38,405 INFO L93 Difference]: Finished difference Result 182705 states and 264238 transitions. [2020-12-23 10:49:38,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 10:49:38,406 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 69 [2020-12-23 10:49:38,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:49:38,654 INFO L225 Difference]: With dead ends: 182705 [2020-12-23 10:49:38,654 INFO L226 Difference]: Without dead ends: 140405 [2020-12-23 10:49:38,709 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-23 10:49:38,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140405 states. [2020-12-23 10:49:49,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140405 to 72847. [2020-12-23 10:49:49,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72847 states. [2020-12-23 10:49:49,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72847 states to 72847 states and 105198 transitions. [2020-12-23 10:49:49,635 INFO L78 Accepts]: Start accepts. Automaton has 72847 states and 105198 transitions. Word has length 69 [2020-12-23 10:49:49,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:49:49,635 INFO L481 AbstractCegarLoop]: Abstraction has 72847 states and 105198 transitions. [2020-12-23 10:49:49,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 10:49:49,635 INFO L276 IsEmpty]: Start isEmpty. Operand 72847 states and 105198 transitions. [2020-12-23 10:49:49,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-23 10:49:49,639 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:49:49,639 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:49:49,639 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-23 10:49:49,639 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:49:49,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:49:49,640 INFO L82 PathProgramCache]: Analyzing trace with hash 558054915, now seen corresponding path program 1 times [2020-12-23 10:49:49,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:49:49,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77969185] [2020-12-23 10:49:49,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:49:49,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:49:49,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:49:49,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77969185] [2020-12-23 10:49:49,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:49:49,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 10:49:49,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594787501] [2020-12-23 10:49:49,722 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 10:49:49,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:49:49,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 10:49:49,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:49:49,723 INFO L87 Difference]: Start difference. First operand 72847 states and 105198 transitions. Second operand 6 states. [2020-12-23 10:50:14,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:50:14,188 INFO L93 Difference]: Finished difference Result 179866 states and 260464 transitions. [2020-12-23 10:50:14,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 10:50:14,189 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 69 [2020-12-23 10:50:14,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:50:14,655 INFO L225 Difference]: With dead ends: 179866 [2020-12-23 10:50:14,655 INFO L226 Difference]: Without dead ends: 167212 [2020-12-23 10:50:14,703 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-12-23 10:50:14,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167212 states. [2020-12-23 10:50:28,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167212 to 85919. [2020-12-23 10:50:28,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85919 states. [2020-12-23 10:50:28,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85919 states to 85919 states and 124040 transitions. [2020-12-23 10:50:28,370 INFO L78 Accepts]: Start accepts. Automaton has 85919 states and 124040 transitions. Word has length 69 [2020-12-23 10:50:28,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:50:28,371 INFO L481 AbstractCegarLoop]: Abstraction has 85919 states and 124040 transitions. [2020-12-23 10:50:28,371 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 10:50:28,371 INFO L276 IsEmpty]: Start isEmpty. Operand 85919 states and 124040 transitions. [2020-12-23 10:50:28,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-23 10:50:28,374 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:50:28,374 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:50:28,374 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-23 10:50:28,374 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:50:28,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:50:28,375 INFO L82 PathProgramCache]: Analyzing trace with hash 362024722, now seen corresponding path program 1 times [2020-12-23 10:50:28,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:50:28,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212458808] [2020-12-23 10:50:28,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:50:28,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:50:28,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:50:28,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212458808] [2020-12-23 10:50:28,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:50:28,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 10:50:28,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203645645] [2020-12-23 10:50:28,458 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 10:50:28,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:50:28,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 10:50:28,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:50:28,459 INFO L87 Difference]: Start difference. First operand 85919 states and 124040 transitions. Second operand 6 states. [2020-12-23 10:50:53,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:50:53,974 INFO L93 Difference]: Finished difference Result 193044 states and 279419 transitions. [2020-12-23 10:50:53,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 10:50:53,975 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 69 [2020-12-23 10:50:53,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:50:54,415 INFO L225 Difference]: With dead ends: 193044 [2020-12-23 10:50:54,415 INFO L226 Difference]: Without dead ends: 169860 [2020-12-23 10:50:54,466 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-12-23 10:50:54,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169860 states. [2020-12-23 10:51:10,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169860 to 96291. [2020-12-23 10:51:10,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96291 states. [2020-12-23 10:51:10,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96291 states to 96291 states and 139210 transitions. [2020-12-23 10:51:10,230 INFO L78 Accepts]: Start accepts. Automaton has 96291 states and 139210 transitions. Word has length 69 [2020-12-23 10:51:10,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:51:10,230 INFO L481 AbstractCegarLoop]: Abstraction has 96291 states and 139210 transitions. [2020-12-23 10:51:10,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 10:51:10,230 INFO L276 IsEmpty]: Start isEmpty. Operand 96291 states and 139210 transitions. [2020-12-23 10:51:10,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-23 10:51:10,233 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:51:10,233 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:51:10,234 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-23 10:51:10,234 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:51:10,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:51:10,234 INFO L82 PathProgramCache]: Analyzing trace with hash -1608289607, now seen corresponding path program 1 times [2020-12-23 10:51:10,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:51:10,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857074333] [2020-12-23 10:51:10,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:51:10,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:51:10,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:51:10,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857074333] [2020-12-23 10:51:10,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:51:10,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 10:51:10,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559547340] [2020-12-23 10:51:10,568 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 10:51:10,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:51:10,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 10:51:10,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:51:10,569 INFO L87 Difference]: Start difference. First operand 96291 states and 139210 transitions. Second operand 6 states. [2020-12-23 10:51:37,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:51:37,552 INFO L93 Difference]: Finished difference Result 215357 states and 311767 transitions. [2020-12-23 10:51:37,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 10:51:37,552 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 69 [2020-12-23 10:51:37,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:51:38,032 INFO L225 Difference]: With dead ends: 215357 [2020-12-23 10:51:38,032 INFO L226 Difference]: Without dead ends: 168098 [2020-12-23 10:51:38,097 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-23 10:51:38,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168098 states. [2020-12-23 10:51:57,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168098 to 111453. [2020-12-23 10:51:57,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111453 states. [2020-12-23 10:51:57,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111453 states to 111453 states and 161085 transitions. [2020-12-23 10:51:57,470 INFO L78 Accepts]: Start accepts. Automaton has 111453 states and 161085 transitions. Word has length 69 [2020-12-23 10:51:57,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:51:57,470 INFO L481 AbstractCegarLoop]: Abstraction has 111453 states and 161085 transitions. [2020-12-23 10:51:57,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 10:51:57,471 INFO L276 IsEmpty]: Start isEmpty. Operand 111453 states and 161085 transitions. [2020-12-23 10:51:57,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-12-23 10:51:57,484 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:51:57,485 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:51:57,485 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-23 10:51:57,485 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:51:57,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:51:57,486 INFO L82 PathProgramCache]: Analyzing trace with hash 534789540, now seen corresponding path program 1 times [2020-12-23 10:51:57,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:51:57,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113627865] [2020-12-23 10:51:57,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:51:57,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:51:57,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:51:57,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113627865] [2020-12-23 10:51:57,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:51:57,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:51:57,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292358840] [2020-12-23 10:51:57,543 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:51:57,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:51:57,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:51:57,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:51:57,544 INFO L87 Difference]: Start difference. First operand 111453 states and 161085 transitions. Second operand 3 states.