/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.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 10:44:56,857 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 10:44:56,859 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 10:44:56,899 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 10:44:56,900 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 10:44:56,901 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 10:44:56,903 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 10:44:56,915 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 10:44:56,918 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 10:44:56,919 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 10:44:56,920 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 10:44:56,922 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 10:44:56,922 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 10:44:56,923 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 10:44:56,925 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 10:44:56,926 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 10:44:56,928 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 10:44:56,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 10:44:56,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 10:44:56,933 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 10:44:56,935 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 10:44:56,937 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 10:44:56,938 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 10:44:56,939 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 10:44:56,943 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-23 10:44:56,947 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 10:44:56,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 10:44:56,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 10:44:56,950 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 10:44:56,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 10:44:56,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 10:44:56,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 10:44:56,953 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 10:44:56,953 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 10:44:56,954 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 10:44:56,955 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 10:44:56,957 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 10:44:56,992 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 10:44:56,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 10:44:56,995 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 10:44:56,995 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 10:44:56,996 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 10:44:56,996 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 10:44:56,996 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 10:44:56,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 10:44:56,997 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 10:44:56,997 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 10:44:56,997 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 10:44:56,998 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 10:44:56,998 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 10:44:56,998 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 10:44:56,998 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 10:44:56,999 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 10:44:56,999 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 10:44:56,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 10:44:57,000 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 10:44:57,000 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 10:44:57,000 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 10:44:57,000 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 10:44:57,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 10:44:57,001 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 10:44:57,001 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 10:44:57,002 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 10:44:57,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 10:44:57,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 10:44:57,435 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 10:44:57,437 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 10:44:57,437 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 10:44:57,438 INFO L432 ainManager$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.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2020-12-23 10:44:57,514 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/9a22bdf7d/eaf80097666c4452bb1cfc315343f811/FLAGd53e1a933 [2020-12-23 10:44:58,322 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 10:44:58,322 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2020-12-23 10:44:58,341 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/9a22bdf7d/eaf80097666c4452bb1cfc315343f811/FLAGd53e1a933 [2020-12-23 10:44:58,590 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/9a22bdf7d/eaf80097666c4452bb1cfc315343f811 [2020-12-23 10:44:58,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 10:44:58,603 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 10:44:58,605 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 10:44:58,605 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 10:44:58,612 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 10:44:58,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 10:44:58" (1/1) ... [2020-12-23 10:44:58,614 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65e70e15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:44:58, skipping insertion in model container [2020-12-23 10:44:58,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 10:44:58" (1/1) ... [2020-12-23 10:44:58,624 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 10:44:58,671 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_19350~0,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_19449~0,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[~main__i2~0,] 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[~__tmp_19596_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~0,] 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[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_19612~0,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 10:44:58,909 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.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[6849,6862] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] 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[~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[~__tmp_19596_0~0,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[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_19626~0,GLOBAL] 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[~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,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~1,] [2020-12-23 10:44:59,005 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 10:44:59,020 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_19350~0,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_19449~0,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[~main__i2~0,] 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[~__tmp_19596_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~0,] 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[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_19612~0,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 10:44:59,089 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.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[6849,6862] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] 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[~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[~__tmp_19596_0~0,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[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_19626~0,GLOBAL] 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[~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,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~1,] [2020-12-23 10:44:59,133 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 10:44:59,157 INFO L208 MainTranslator]: Completed translation [2020-12-23 10:44:59,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:44:59 WrapperNode [2020-12-23 10:44:59,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 10:44:59,159 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 10:44:59,159 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 10:44:59,159 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 10:44:59,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:44:59" (1/1) ... [2020-12-23 10:44:59,182 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:44:59" (1/1) ... [2020-12-23 10:44:59,234 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 10:44:59,235 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 10:44:59,235 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 10:44:59,235 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 10:44:59,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:44:59" (1/1) ... [2020-12-23 10:44:59,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:44:59" (1/1) ... [2020-12-23 10:44:59,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:44:59" (1/1) ... [2020-12-23 10:44:59,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:44:59" (1/1) ... [2020-12-23 10:44:59,266 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:44:59" (1/1) ... [2020-12-23 10:44:59,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:44:59" (1/1) ... [2020-12-23 10:44:59,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:44:59" (1/1) ... [2020-12-23 10:44:59,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 10:44:59,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 10:44:59,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 10:44:59,288 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 10:44:59,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:44:59" (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 10:44:59,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 10:44:59,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 10:44:59,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 10:44:59,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 10:45:00,495 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 10:45:00,495 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-23 10:45:00,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 10:45:00 BoogieIcfgContainer [2020-12-23 10:45:00,500 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 10:45:00,504 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 10:45:00,506 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 10:45:00,510 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 10:45:00,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 10:44:58" (1/3) ... [2020-12-23 10:45:00,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5143de3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 10:45:00, skipping insertion in model container [2020-12-23 10:45:00,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:44:59" (2/3) ... [2020-12-23 10:45:00,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5143de3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 10:45:00, skipping insertion in model container [2020-12-23 10:45:00,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 10:45:00" (3/3) ... [2020-12-23 10:45:00,516 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2020-12-23 10:45:00,524 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 10:45:00,529 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 10:45:00,550 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 10:45:00,599 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 10:45:00,599 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 10:45:00,599 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 10:45:00,599 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 10:45:00,600 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 10:45:00,600 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 10:45:00,600 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 10:45:00,600 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 10:45:00,629 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states. [2020-12-23 10:45:00,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-12-23 10:45:00,651 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:45:00,652 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 10:45:00,653 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:45:00,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:45:00,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1338980314, now seen corresponding path program 1 times [2020-12-23 10:45:00,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:45:00,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534024586] [2020-12-23 10:45:00,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:45:00,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:45:01,132 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 10:45:01,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534024586] [2020-12-23 10:45:01,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:45:01,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:45:01,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255349744] [2020-12-23 10:45:01,140 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:45:01,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:45:01,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:45:01,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:45:01,159 INFO L87 Difference]: Start difference. First operand 180 states. Second operand 3 states. [2020-12-23 10:45:01,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:45:01,280 INFO L93 Difference]: Finished difference Result 365 states and 600 transitions. [2020-12-23 10:45:01,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:45:01,283 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2020-12-23 10:45:01,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:45:01,300 INFO L225 Difference]: With dead ends: 365 [2020-12-23 10:45:01,301 INFO L226 Difference]: Without dead ends: 275 [2020-12-23 10:45:01,305 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 10:45:01,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-12-23 10:45:01,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 273. [2020-12-23 10:45:01,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2020-12-23 10:45:01,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 409 transitions. [2020-12-23 10:45:01,382 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 409 transitions. Word has length 65 [2020-12-23 10:45:01,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:45:01,383 INFO L481 AbstractCegarLoop]: Abstraction has 273 states and 409 transitions. [2020-12-23 10:45:01,383 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:45:01,384 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 409 transitions. [2020-12-23 10:45:01,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-23 10:45:01,387 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:45:01,387 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 10:45:01,387 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 10:45:01,388 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:45:01,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:45:01,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1162317624, now seen corresponding path program 1 times [2020-12-23 10:45:01,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:45:01,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160902233] [2020-12-23 10:45:01,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:45:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:45:01,818 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 10:45:01,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160902233] [2020-12-23 10:45:01,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:45:01,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 10:45:01,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712255258] [2020-12-23 10:45:01,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 10:45:01,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:45:01,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 10:45:01,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:45:01,826 INFO L87 Difference]: Start difference. First operand 273 states and 409 transitions. Second operand 6 states. [2020-12-23 10:45:02,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:45:02,190 INFO L93 Difference]: Finished difference Result 1003 states and 1541 transitions. [2020-12-23 10:45:02,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 10:45:02,191 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2020-12-23 10:45:02,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:45:02,198 INFO L225 Difference]: With dead ends: 1003 [2020-12-23 10:45:02,199 INFO L226 Difference]: Without dead ends: 793 [2020-12-23 10:45:02,202 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 10:45:02,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2020-12-23 10:45:02,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 787. [2020-12-23 10:45:02,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 787 states. [2020-12-23 10:45:02,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1199 transitions. [2020-12-23 10:45:02,283 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1199 transitions. Word has length 66 [2020-12-23 10:45:02,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:45:02,283 INFO L481 AbstractCegarLoop]: Abstraction has 787 states and 1199 transitions. [2020-12-23 10:45:02,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 10:45:02,284 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1199 transitions. [2020-12-23 10:45:02,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-23 10:45:02,288 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:45:02,289 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 10:45:02,289 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 10:45:02,289 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:45:02,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:45:02,290 INFO L82 PathProgramCache]: Analyzing trace with hash -314049844, now seen corresponding path program 1 times [2020-12-23 10:45:02,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:45:02,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823222362] [2020-12-23 10:45:02,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:45:02,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:45:02,522 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 10:45:02,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823222362] [2020-12-23 10:45:02,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:45:02,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:45:02,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578706689] [2020-12-23 10:45:02,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 10:45:02,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:45:02,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 10:45:02,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:45:02,532 INFO L87 Difference]: Start difference. First operand 787 states and 1199 transitions. Second operand 6 states. [2020-12-23 10:45:03,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:45:03,009 INFO L93 Difference]: Finished difference Result 2641 states and 4082 transitions. [2020-12-23 10:45:03,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:45:03,010 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2020-12-23 10:45:03,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:45:03,026 INFO L225 Difference]: With dead ends: 2641 [2020-12-23 10:45:03,027 INFO L226 Difference]: Without dead ends: 1905 [2020-12-23 10:45:03,033 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 10:45:03,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1905 states. [2020-12-23 10:45:03,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1905 to 1901. [2020-12-23 10:45:03,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1901 states. [2020-12-23 10:45:03,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1901 states to 1901 states and 2928 transitions. [2020-12-23 10:45:03,217 INFO L78 Accepts]: Start accepts. Automaton has 1901 states and 2928 transitions. Word has length 67 [2020-12-23 10:45:03,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:45:03,225 INFO L481 AbstractCegarLoop]: Abstraction has 1901 states and 2928 transitions. [2020-12-23 10:45:03,226 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 10:45:03,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1901 states and 2928 transitions. [2020-12-23 10:45:03,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-23 10:45:03,234 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:45:03,236 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 10:45:03,237 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 10:45:03,237 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:45:03,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:45:03,238 INFO L82 PathProgramCache]: Analyzing trace with hash -301249106, now seen corresponding path program 1 times [2020-12-23 10:45:03,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:45:03,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084698178] [2020-12-23 10:45:03,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:45:03,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:45:03,405 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 10:45:03,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084698178] [2020-12-23 10:45:03,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:45:03,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:45:03,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730085190] [2020-12-23 10:45:03,410 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 10:45:03,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:45:03,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 10:45:03,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:45:03,413 INFO L87 Difference]: Start difference. First operand 1901 states and 2928 transitions. Second operand 6 states. [2020-12-23 10:45:04,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:45:04,037 INFO L93 Difference]: Finished difference Result 6611 states and 10261 transitions. [2020-12-23 10:45:04,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:45:04,037 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2020-12-23 10:45:04,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:45:04,067 INFO L225 Difference]: With dead ends: 6611 [2020-12-23 10:45:04,067 INFO L226 Difference]: Without dead ends: 4811 [2020-12-23 10:45:04,072 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 10:45:04,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4811 states. [2020-12-23 10:45:04,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4811 to 4371. [2020-12-23 10:45:04,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4371 states. [2020-12-23 10:45:04,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4371 states to 4371 states and 6749 transitions. [2020-12-23 10:45:04,461 INFO L78 Accepts]: Start accepts. Automaton has 4371 states and 6749 transitions. Word has length 67 [2020-12-23 10:45:04,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:45:04,464 INFO L481 AbstractCegarLoop]: Abstraction has 4371 states and 6749 transitions. [2020-12-23 10:45:04,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 10:45:04,464 INFO L276 IsEmpty]: Start isEmpty. Operand 4371 states and 6749 transitions. [2020-12-23 10:45:04,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-23 10:45:04,466 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:45:04,466 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 10:45:04,466 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 10:45:04,467 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:45:04,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:45:04,468 INFO L82 PathProgramCache]: Analyzing trace with hash 1722644829, now seen corresponding path program 1 times [2020-12-23 10:45:04,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:45:04,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046663615] [2020-12-23 10:45:04,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:45:04,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:45:04,587 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 10:45:04,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046663615] [2020-12-23 10:45:04,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:45:04,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:45:04,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253294510] [2020-12-23 10:45:04,589 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 10:45:04,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:45:04,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 10:45:04,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:45:04,591 INFO L87 Difference]: Start difference. First operand 4371 states and 6749 transitions. Second operand 6 states. [2020-12-23 10:45:05,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:45:05,602 INFO L93 Difference]: Finished difference Result 16440 states and 25438 transitions. [2020-12-23 10:45:05,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:45:05,603 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2020-12-23 10:45:05,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:45:05,671 INFO L225 Difference]: With dead ends: 16440 [2020-12-23 10:45:05,671 INFO L226 Difference]: Without dead ends: 12143 [2020-12-23 10:45:05,725 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 10:45:05,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12143 states. [2020-12-23 10:45:06,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12143 to 12139. [2020-12-23 10:45:06,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12139 states. [2020-12-23 10:45:06,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12139 states to 12139 states and 18697 transitions. [2020-12-23 10:45:06,655 INFO L78 Accepts]: Start accepts. Automaton has 12139 states and 18697 transitions. Word has length 67 [2020-12-23 10:45:06,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:45:06,656 INFO L481 AbstractCegarLoop]: Abstraction has 12139 states and 18697 transitions. [2020-12-23 10:45:06,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 10:45:06,656 INFO L276 IsEmpty]: Start isEmpty. Operand 12139 states and 18697 transitions. [2020-12-23 10:45:06,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-23 10:45:06,658 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:45:06,659 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 10:45:06,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 10:45:06,659 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:45:06,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:45:06,660 INFO L82 PathProgramCache]: Analyzing trace with hash -262843909, now seen corresponding path program 1 times [2020-12-23 10:45:06,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:45:06,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140474464] [2020-12-23 10:45:06,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:45:06,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:45:06,812 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 10:45:06,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140474464] [2020-12-23 10:45:06,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:45:06,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 10:45:06,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498213937] [2020-12-23 10:45:06,814 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 10:45:06,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:45:06,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 10:45:06,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:45:06,815 INFO L87 Difference]: Start difference. First operand 12139 states and 18697 transitions. Second operand 5 states. [2020-12-23 10:45:08,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:45:08,571 INFO L93 Difference]: Finished difference Result 36103 states and 55673 transitions. [2020-12-23 10:45:08,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:45:08,572 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 67 [2020-12-23 10:45:08,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:45:08,651 INFO L225 Difference]: With dead ends: 36103 [2020-12-23 10:45:08,652 INFO L226 Difference]: Without dead ends: 23999 [2020-12-23 10:45:08,673 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 10:45:08,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23999 states. [2020-12-23 10:45:10,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23999 to 23997. [2020-12-23 10:45:10,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23997 states. [2020-12-23 10:45:10,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23997 states to 23997 states and 36670 transitions. [2020-12-23 10:45:10,127 INFO L78 Accepts]: Start accepts. Automaton has 23997 states and 36670 transitions. Word has length 67 [2020-12-23 10:45:10,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:45:10,128 INFO L481 AbstractCegarLoop]: Abstraction has 23997 states and 36670 transitions. [2020-12-23 10:45:10,128 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 10:45:10,128 INFO L276 IsEmpty]: Start isEmpty. Operand 23997 states and 36670 transitions. [2020-12-23 10:45:10,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-23 10:45:10,132 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:45:10,132 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 10:45:10,132 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 10:45:10,133 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:45:10,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:45:10,133 INFO L82 PathProgramCache]: Analyzing trace with hash -767077788, now seen corresponding path program 1 times [2020-12-23 10:45:10,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:45:10,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812090556] [2020-12-23 10:45:10,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:45:10,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:45:10,222 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 10:45:10,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812090556] [2020-12-23 10:45:10,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:45:10,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:45:10,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891628728] [2020-12-23 10:45:10,224 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 10:45:10,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:45:10,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 10:45:10,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:45:10,225 INFO L87 Difference]: Start difference. First operand 23997 states and 36670 transitions. Second operand 5 states. [2020-12-23 10:45:12,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:45:12,895 INFO L93 Difference]: Finished difference Result 44165 states and 67094 transitions. [2020-12-23 10:45:12,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 10:45:12,895 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 68 [2020-12-23 10:45:12,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:45:13,002 INFO L225 Difference]: With dead ends: 44165 [2020-12-23 10:45:13,002 INFO L226 Difference]: Without dead ends: 44163 [2020-12-23 10:45:13,017 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 10:45:13,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44163 states. [2020-12-23 10:45:14,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44163 to 24393. [2020-12-23 10:45:14,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24393 states. [2020-12-23 10:45:14,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24393 states to 24393 states and 37066 transitions. [2020-12-23 10:45:14,586 INFO L78 Accepts]: Start accepts. Automaton has 24393 states and 37066 transitions. Word has length 68 [2020-12-23 10:45:14,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:45:14,586 INFO L481 AbstractCegarLoop]: Abstraction has 24393 states and 37066 transitions. [2020-12-23 10:45:14,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 10:45:14,586 INFO L276 IsEmpty]: Start isEmpty. Operand 24393 states and 37066 transitions. [2020-12-23 10:45:14,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-23 10:45:14,591 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:45:14,591 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 10:45:14,592 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 10:45:14,592 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:45:14,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:45:14,592 INFO L82 PathProgramCache]: Analyzing trace with hash -2026121149, now seen corresponding path program 1 times [2020-12-23 10:45:14,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:45:14,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546714693] [2020-12-23 10:45:14,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:45:14,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:45:14,761 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 10:45:14,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546714693] [2020-12-23 10:45:14,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:45:14,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 10:45:14,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148636033] [2020-12-23 10:45:14,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 10:45:14,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:45:14,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 10:45:14,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 10:45:14,763 INFO L87 Difference]: Start difference. First operand 24393 states and 37066 transitions. Second operand 4 states. [2020-12-23 10:45:17,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:45:17,180 INFO L93 Difference]: Finished difference Result 67564 states and 102243 transitions. [2020-12-23 10:45:17,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 10:45:17,181 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 69 [2020-12-23 10:45:17,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:45:17,306 INFO L225 Difference]: With dead ends: 67564 [2020-12-23 10:45:17,306 INFO L226 Difference]: Without dead ends: 44102 [2020-12-23 10:45:17,355 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 10:45:17,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44102 states. [2020-12-23 10:45:19,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44102 to 44100. [2020-12-23 10:45:19,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44100 states. [2020-12-23 10:45:19,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44100 states to 44100 states and 66283 transitions. [2020-12-23 10:45:19,980 INFO L78 Accepts]: Start accepts. Automaton has 44100 states and 66283 transitions. Word has length 69 [2020-12-23 10:45:19,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:45:19,981 INFO L481 AbstractCegarLoop]: Abstraction has 44100 states and 66283 transitions. [2020-12-23 10:45:19,981 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 10:45:19,981 INFO L276 IsEmpty]: Start isEmpty. Operand 44100 states and 66283 transitions. [2020-12-23 10:45:19,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-23 10:45:19,985 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:45:19,986 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] [2020-12-23 10:45:19,986 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 10:45:19,986 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:45:19,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:45:19,987 INFO L82 PathProgramCache]: Analyzing trace with hash -304742627, now seen corresponding path program 1 times [2020-12-23 10:45:19,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:45:19,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283790939] [2020-12-23 10:45:19,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:45:20,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:45:20,035 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 10:45:20,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283790939] [2020-12-23 10:45:20,036 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:45:20,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:45:20,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778634283] [2020-12-23 10:45:20,036 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:45:20,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:45:20,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:45:20,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:45:20,037 INFO L87 Difference]: Start difference. First operand 44100 states and 66283 transitions. Second operand 3 states. [2020-12-23 10:45:22,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:45:22,995 INFO L93 Difference]: Finished difference Result 79471 states and 119410 transitions. [2020-12-23 10:45:22,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:45:22,996 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-12-23 10:45:22,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:45:23,141 INFO L225 Difference]: With dead ends: 79471 [2020-12-23 10:45:23,142 INFO L226 Difference]: Without dead ends: 56769 [2020-12-23 10:45:23,201 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 10:45:23,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56769 states. [2020-12-23 10:45:26,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56769 to 55966. [2020-12-23 10:45:26,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55966 states. [2020-12-23 10:45:26,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55966 states to 55966 states and 82939 transitions. [2020-12-23 10:45:26,732 INFO L78 Accepts]: Start accepts. Automaton has 55966 states and 82939 transitions. Word has length 70 [2020-12-23 10:45:26,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:45:26,733 INFO L481 AbstractCegarLoop]: Abstraction has 55966 states and 82939 transitions. [2020-12-23 10:45:26,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:45:26,733 INFO L276 IsEmpty]: Start isEmpty. Operand 55966 states and 82939 transitions. [2020-12-23 10:45:26,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-23 10:45:26,738 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:45:26,738 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] [2020-12-23 10:45:26,738 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 10:45:26,739 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:45:26,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:45:26,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1483743676, now seen corresponding path program 1 times [2020-12-23 10:45:26,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:45:26,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737952160] [2020-12-23 10:45:26,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:45:26,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:45:26,786 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 10:45:26,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737952160] [2020-12-23 10:45:26,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:45:26,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:45:26,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207156182] [2020-12-23 10:45:26,788 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:45:26,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:45:26,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:45:26,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:45:26,789 INFO L87 Difference]: Start difference. First operand 55966 states and 82939 transitions. Second operand 3 states. [2020-12-23 10:45:30,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:45:30,225 INFO L93 Difference]: Finished difference Result 78413 states and 115766 transitions. [2020-12-23 10:45:30,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:45:30,226 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-12-23 10:45:30,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:45:30,328 INFO L225 Difference]: With dead ends: 78413 [2020-12-23 10:45:30,328 INFO L226 Difference]: Without dead ends: 63367 [2020-12-23 10:45:30,354 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:45:30,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63367 states. [2020-12-23 10:45:33,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63367 to 59432. [2020-12-23 10:45:33,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59432 states. [2020-12-23 10:45:34,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59432 states to 59432 states and 86669 transitions. [2020-12-23 10:45:34,082 INFO L78 Accepts]: Start accepts. Automaton has 59432 states and 86669 transitions. Word has length 70 [2020-12-23 10:45:34,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:45:34,082 INFO L481 AbstractCegarLoop]: Abstraction has 59432 states and 86669 transitions. [2020-12-23 10:45:34,082 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:45:34,082 INFO L276 IsEmpty]: Start isEmpty. Operand 59432 states and 86669 transitions. [2020-12-23 10:45:34,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-23 10:45:34,087 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:45:34,088 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:45:34,088 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 10:45:34,088 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:45:34,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:45:34,089 INFO L82 PathProgramCache]: Analyzing trace with hash 44551324, now seen corresponding path program 1 times [2020-12-23 10:45:34,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:45:34,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469026587] [2020-12-23 10:45:34,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:45:34,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:45:34,161 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 10:45:34,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469026587] [2020-12-23 10:45:34,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:45:34,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 10:45:34,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206459127] [2020-12-23 10:45:34,162 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 10:45:34,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:45:34,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 10:45:34,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:45:34,164 INFO L87 Difference]: Start difference. First operand 59432 states and 86669 transitions. Second operand 6 states. [2020-12-23 10:45:43,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:45:43,641 INFO L93 Difference]: Finished difference Result 203476 states and 296237 transitions. [2020-12-23 10:45:43,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 10:45:43,641 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 70 [2020-12-23 10:45:43,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:45:44,078 INFO L225 Difference]: With dead ends: 203476 [2020-12-23 10:45:44,079 INFO L226 Difference]: Without dead ends: 154072 [2020-12-23 10:45:44,192 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 10:45:44,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154072 states. [2020-12-23 10:45:49,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154072 to 83302. [2020-12-23 10:45:49,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83302 states. [2020-12-23 10:45:50,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83302 states to 83302 states and 121196 transitions. [2020-12-23 10:45:50,133 INFO L78 Accepts]: Start accepts. Automaton has 83302 states and 121196 transitions. Word has length 70 [2020-12-23 10:45:50,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:45:50,134 INFO L481 AbstractCegarLoop]: Abstraction has 83302 states and 121196 transitions. [2020-12-23 10:45:50,134 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 10:45:50,134 INFO L276 IsEmpty]: Start isEmpty. Operand 83302 states and 121196 transitions. [2020-12-23 10:45:50,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-23 10:45:50,139 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:45:50,140 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] [2020-12-23 10:45:50,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-23 10:45:50,140 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:45:50,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:45:50,141 INFO L82 PathProgramCache]: Analyzing trace with hash -1768892355, now seen corresponding path program 1 times [2020-12-23 10:45:50,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:45:50,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301688211] [2020-12-23 10:45:50,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:45:50,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:45:50,215 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 10:45:50,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301688211] [2020-12-23 10:45:50,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:45:50,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:45:50,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652322215] [2020-12-23 10:45:50,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:45:50,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:45:50,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:45:50,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:45:50,217 INFO L87 Difference]: Start difference. First operand 83302 states and 121196 transitions. Second operand 3 states. [2020-12-23 10:45:59,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:45:59,446 INFO L93 Difference]: Finished difference Result 211206 states and 307461 transitions. [2020-12-23 10:45:59,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:45:59,449 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-12-23 10:45:59,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:45:59,686 INFO L225 Difference]: With dead ends: 211206 [2020-12-23 10:45:59,687 INFO L226 Difference]: Without dead ends: 141005 [2020-12-23 10:45:59,748 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 10:45:59,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141005 states. [2020-12-23 10:46:09,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141005 to 140670. [2020-12-23 10:46:09,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140670 states. [2020-12-23 10:46:09,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140670 states to 140670 states and 202754 transitions. [2020-12-23 10:46:09,619 INFO L78 Accepts]: Start accepts. Automaton has 140670 states and 202754 transitions. Word has length 70 [2020-12-23 10:46:09,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:46:09,620 INFO L481 AbstractCegarLoop]: Abstraction has 140670 states and 202754 transitions. [2020-12-23 10:46:09,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:46:09,620 INFO L276 IsEmpty]: Start isEmpty. Operand 140670 states and 202754 transitions. [2020-12-23 10:46:09,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-23 10:46:09,638 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:46:09,638 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] [2020-12-23 10:46:09,638 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-23 10:46:09,638 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:46:09,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:46:09,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1753930236, now seen corresponding path program 1 times [2020-12-23 10:46:09,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:46:09,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972113100] [2020-12-23 10:46:09,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:46:09,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:46:09,733 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 10:46:09,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972113100] [2020-12-23 10:46:09,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:46:09,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 10:46:09,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676254610] [2020-12-23 10:46:09,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 10:46:09,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:46:09,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 10:46:09,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:46:09,736 INFO L87 Difference]: Start difference. First operand 140670 states and 202754 transitions. Second operand 6 states. [2020-12-23 10:46:30,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:46:30,276 INFO L93 Difference]: Finished difference Result 345869 states and 499368 transitions. [2020-12-23 10:46:30,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 10:46:30,276 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 70 [2020-12-23 10:46:30,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:46:31,079 INFO L225 Difference]: With dead ends: 345869 [2020-12-23 10:46:31,080 INFO L226 Difference]: Without dead ends: 319183 [2020-12-23 10:46:31,162 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 10:46:31,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319183 states. [2020-12-23 10:46:44,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319183 to 168152. [2020-12-23 10:46:44,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168152 states. [2020-12-23 10:46:44,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168152 states to 168152 states and 242264 transitions. [2020-12-23 10:46:44,997 INFO L78 Accepts]: Start accepts. Automaton has 168152 states and 242264 transitions. Word has length 70 [2020-12-23 10:46:44,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:46:44,998 INFO L481 AbstractCegarLoop]: Abstraction has 168152 states and 242264 transitions. [2020-12-23 10:46:44,998 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 10:46:44,998 INFO L276 IsEmpty]: Start isEmpty. Operand 168152 states and 242264 transitions. [2020-12-23 10:46:45,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-23 10:46:45,004 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:46:45,004 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] [2020-12-23 10:46:45,004 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-23 10:46:45,005 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:46:45,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:46:45,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1600159939, now seen corresponding path program 1 times [2020-12-23 10:46:45,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:46:45,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855475606] [2020-12-23 10:46:45,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:46:45,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:46:45,087 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 10:46:45,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855475606] [2020-12-23 10:46:45,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:46:45,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 10:46:45,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631258921] [2020-12-23 10:46:45,089 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 10:46:45,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:46:45,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 10:46:45,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:46:45,090 INFO L87 Difference]: Start difference. First operand 168152 states and 242264 transitions. Second operand 6 states. [2020-12-23 10:47:08,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:47:08,191 INFO L93 Difference]: Finished difference Result 373536 states and 539045 transitions. [2020-12-23 10:47:08,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 10:47:08,191 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 70 [2020-12-23 10:47:08,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:47:08,776 INFO L225 Difference]: With dead ends: 373536 [2020-12-23 10:47:08,776 INFO L226 Difference]: Without dead ends: 324548 [2020-12-23 10:47:08,887 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 10:47:09,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324548 states.