/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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 11:02:19,523 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 11:02:19,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 11:02:19,581 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 11:02:19,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 11:02:19,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 11:02:19,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 11:02:19,595 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 11:02:19,598 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 11:02:19,604 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 11:02:19,608 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 11:02:19,610 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 11:02:19,610 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 11:02:19,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 11:02:19,615 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 11:02:19,617 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 11:02:19,619 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 11:02:19,622 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 11:02:19,629 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 11:02:19,637 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 11:02:19,639 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 11:02:19,641 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 11:02:19,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 11:02:19,645 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 11:02:19,654 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-23 11:02:19,659 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 11:02:19,660 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 11:02:19,662 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 11:02:19,663 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 11:02:19,677 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 11:02:19,678 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 11:02:19,679 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 11:02:19,679 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 11:02:19,680 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 11:02:19,681 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 11:02:19,682 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 11:02:19,683 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 11:02:19,711 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 11:02:19,712 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 11:02:19,713 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 11:02:19,714 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 11:02:19,714 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 11:02:19,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 11:02:19,714 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 11:02:19,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 11:02:19,715 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 11:02:19,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 11:02:19,715 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 11:02:19,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 11:02:19,716 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 11:02:19,716 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 11:02:19,716 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 11:02:19,717 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 11:02:19,717 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 11:02:19,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 11:02:19,717 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 11:02:19,718 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 11:02:19,718 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 11:02:19,718 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 11:02:19,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 11:02:19,719 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 11:02:19,719 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 11:02:19,719 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 11:02:20,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 11:02:20,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 11:02:20,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 11:02:20,168 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 11:02:20,168 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 11:02:20,170 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-12-23 11:02:20,262 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/c26a95982/ce5ebf9af2634a84bcf18ed22984ac2c/FLAGbc3839057 [2020-12-23 11:02:21,095 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 11:02:21,095 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-12-23 11:02:21,112 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/c26a95982/ce5ebf9af2634a84bcf18ed22984ac2c/FLAGbc3839057 [2020-12-23 11:02:21,368 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/c26a95982/ce5ebf9af2634a84bcf18ed22984ac2c [2020-12-23 11:02:21,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 11:02:21,374 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 11:02:21,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 11:02:21,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 11:02:21,384 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 11:02:21,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:02:21" (1/1) ... [2020-12-23 11:02:21,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16938a7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:21, skipping insertion in model container [2020-12-23 11:02:21,388 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:02:21" (1/1) ... [2020-12-23 11:02:21,397 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 11:02:21,473 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[~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[~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[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_1389~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_2195~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_1527~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_2~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~1,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~__return_1594~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_3~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~2,] [2020-12-23 11:02:21,764 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[6713,6726] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,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[~st2~0,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[~st1~0,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[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~__return_1827~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_4~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~3,] [2020-12-23 11:02:21,794 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[9380,9393] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~3,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~3,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~__return_2004~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_5~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~4,] [2020-12-23 11:02:21,804 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[10471,10484] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~5,] left hand side expression in assignment: lhs: VariableLHS[~__return_2162~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_6~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~5,] [2020-12-23 11:02:21,811 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[11077,11090] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~3,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~3,] 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__m3~4,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~4,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~6,] left hand side expression in assignment: lhs: VariableLHS[~__return_1744~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_7~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~6,] [2020-12-23 11:02:21,823 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[12496,12509] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~7,] left hand side expression in assignment: lhs: VariableLHS[~__return_1893~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_8~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~7,] [2020-12-23 11:02:21,830 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13102,13115] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~5,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~5,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~8,] left hand side expression in assignment: lhs: VariableLHS[~__return_2082~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_9~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~8,] [2020-12-23 11:02:21,839 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14031,14044] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~9,] left hand side expression in assignment: lhs: VariableLHS[~__return_2228~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~10,] left hand side expression in assignment: lhs: VariableLHS[~__return_2129~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_10~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~9,] 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__m3~6,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~11,] left hand side expression in assignment: lhs: VariableLHS[~__return_2037~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_11~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~10,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~12,] left hand side expression in assignment: lhs: VariableLHS[~__return_1956~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_12~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~11,] 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__m2~4,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~2,] 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__m3~7,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~3,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~13,] left hand side expression in assignment: lhs: VariableLHS[~__return_1860~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_13~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~12,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~3,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~14,] left hand side expression in assignment: lhs: VariableLHS[~__return_1791~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_14~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~13,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~2,] 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__m3~8,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~4,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~15,] left hand side expression in assignment: lhs: VariableLHS[~__return_1684~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_15~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~14,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~4,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~16,] left hand side expression in assignment: lhs: VariableLHS[~__return_1462~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_16~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~15,] [2020-12-23 11:02:21,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 11:02:21,926 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[~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[~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[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_1389~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_2195~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_1527~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_2~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~1,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~__return_1594~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_3~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~2,] [2020-12-23 11:02:21,993 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[6713,6726] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,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[~st2~0,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[~st1~0,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[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~__return_1827~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_4~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~3,] [2020-12-23 11:02:22,013 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[9380,9393] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~3,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~3,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~__return_2004~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_5~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~4,] [2020-12-23 11:02:22,024 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[10471,10484] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~5,] left hand side expression in assignment: lhs: VariableLHS[~__return_2162~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_6~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~5,] [2020-12-23 11:02:22,035 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[11077,11090] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~3,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~3,] 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__m3~4,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~4,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~6,] left hand side expression in assignment: lhs: VariableLHS[~__return_1744~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_7~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~6,] [2020-12-23 11:02:22,093 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[12496,12509] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~7,] left hand side expression in assignment: lhs: VariableLHS[~__return_1893~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_8~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~7,] [2020-12-23 11:02:22,110 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13102,13115] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~5,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~5,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~8,] left hand side expression in assignment: lhs: VariableLHS[~__return_2082~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_9~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~8,] [2020-12-23 11:02:22,134 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14031,14044] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~9,] left hand side expression in assignment: lhs: VariableLHS[~__return_2228~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~10,] left hand side expression in assignment: lhs: VariableLHS[~__return_2129~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_10~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~9,] 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__m3~6,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~11,] left hand side expression in assignment: lhs: VariableLHS[~__return_2037~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_11~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~10,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~12,] left hand side expression in assignment: lhs: VariableLHS[~__return_1956~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_12~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~11,] 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__m2~4,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~2,] 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__m3~7,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~3,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~13,] left hand side expression in assignment: lhs: VariableLHS[~__return_1860~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_13~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~12,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~3,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~14,] left hand side expression in assignment: lhs: VariableLHS[~__return_1791~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_14~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~13,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~2,] 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__m3~8,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~4,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~15,] left hand side expression in assignment: lhs: VariableLHS[~__return_1684~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_15~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~14,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~4,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~16,] left hand side expression in assignment: lhs: VariableLHS[~__return_1462~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_16~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~15,] [2020-12-23 11:02:22,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 11:02:22,211 INFO L208 MainTranslator]: Completed translation [2020-12-23 11:02:22,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:22 WrapperNode [2020-12-23 11:02:22,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 11:02:22,214 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 11:02:22,214 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 11:02:22,214 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 11:02:22,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:22" (1/1) ... [2020-12-23 11:02:22,250 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:22" (1/1) ... [2020-12-23 11:02:22,332 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 11:02:22,334 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 11:02:22,334 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 11:02:22,334 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 11:02:22,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:22" (1/1) ... [2020-12-23 11:02:22,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:22" (1/1) ... [2020-12-23 11:02:22,354 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:22" (1/1) ... [2020-12-23 11:02:22,354 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:22" (1/1) ... [2020-12-23 11:02:22,373 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:22" (1/1) ... [2020-12-23 11:02:22,383 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:22" (1/1) ... [2020-12-23 11:02:22,388 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:22" (1/1) ... [2020-12-23 11:02:22,395 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 11:02:22,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 11:02:22,396 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 11:02:22,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 11:02:22,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:22" (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 11:02:22,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 11:02:22,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 11:02:22,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 11:02:22,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 11:02:23,856 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 11:02:23,856 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-23 11:02:23,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:02:23 BoogieIcfgContainer [2020-12-23 11:02:23,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 11:02:23,861 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 11:02:23,861 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 11:02:23,865 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 11:02:23,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 11:02:21" (1/3) ... [2020-12-23 11:02:23,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61838c97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:02:23, skipping insertion in model container [2020-12-23 11:02:23,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:22" (2/3) ... [2020-12-23 11:02:23,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61838c97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:02:23, skipping insertion in model container [2020-12-23 11:02:23,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:02:23" (3/3) ... [2020-12-23 11:02:23,869 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-12-23 11:02:23,877 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 11:02:23,883 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-12-23 11:02:23,903 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-12-23 11:02:23,936 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 11:02:23,937 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 11:02:23,937 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 11:02:23,937 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 11:02:23,937 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 11:02:23,937 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 11:02:23,938 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 11:02:23,938 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 11:02:23,962 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states. [2020-12-23 11:02:23,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-12-23 11:02:23,972 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:23,973 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] [2020-12-23 11:02:23,974 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:23,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:23,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1899747950, now seen corresponding path program 1 times [2020-12-23 11:02:23,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:23,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634715888] [2020-12-23 11:02:23,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:24,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:24,449 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 11:02:24,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634715888] [2020-12-23 11:02:24,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:02:24,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 11:02:24,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486333717] [2020-12-23 11:02:24,458 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 11:02:24,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:24,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 11:02:24,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:02:24,478 INFO L87 Difference]: Start difference. First operand 206 states. Second operand 5 states. [2020-12-23 11:02:24,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:02:24,756 INFO L93 Difference]: Finished difference Result 338 states and 568 transitions. [2020-12-23 11:02:24,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:02:24,758 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 46 [2020-12-23 11:02:24,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:02:24,773 INFO L225 Difference]: With dead ends: 338 [2020-12-23 11:02:24,774 INFO L226 Difference]: Without dead ends: 174 [2020-12-23 11:02:24,778 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 11:02:24,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-12-23 11:02:24,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2020-12-23 11:02:24,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-12-23 11:02:24,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 216 transitions. [2020-12-23 11:02:24,853 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 216 transitions. Word has length 46 [2020-12-23 11:02:24,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:02:24,854 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 216 transitions. [2020-12-23 11:02:24,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 11:02:24,854 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 216 transitions. [2020-12-23 11:02:24,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-23 11:02:24,857 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:24,857 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] [2020-12-23 11:02:24,858 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 11:02:24,858 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:24,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:24,859 INFO L82 PathProgramCache]: Analyzing trace with hash -121525429, now seen corresponding path program 1 times [2020-12-23 11:02:24,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:24,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348547120] [2020-12-23 11:02:24,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:24,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:24,976 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 11:02:24,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348547120] [2020-12-23 11:02:24,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:02:24,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 11:02:24,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725443858] [2020-12-23 11:02:24,979 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 11:02:24,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:24,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 11:02:24,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:02:24,981 INFO L87 Difference]: Start difference. First operand 174 states and 216 transitions. Second operand 5 states. [2020-12-23 11:02:25,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:02:25,187 INFO L93 Difference]: Finished difference Result 297 states and 378 transitions. [2020-12-23 11:02:25,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:02:25,188 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2020-12-23 11:02:25,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:02:25,190 INFO L225 Difference]: With dead ends: 297 [2020-12-23 11:02:25,191 INFO L226 Difference]: Without dead ends: 164 [2020-12-23 11:02:25,193 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 11:02:25,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-12-23 11:02:25,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2020-12-23 11:02:25,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-12-23 11:02:25,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 203 transitions. [2020-12-23 11:02:25,212 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 203 transitions. Word has length 47 [2020-12-23 11:02:25,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:02:25,213 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 203 transitions. [2020-12-23 11:02:25,213 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 11:02:25,213 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 203 transitions. [2020-12-23 11:02:25,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-23 11:02:25,216 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:25,216 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] [2020-12-23 11:02:25,216 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 11:02:25,217 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:25,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:25,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1668920151, now seen corresponding path program 1 times [2020-12-23 11:02:25,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:25,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726601082] [2020-12-23 11:02:25,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:25,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:25,341 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 11:02:25,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726601082] [2020-12-23 11:02:25,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:02:25,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 11:02:25,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32107038] [2020-12-23 11:02:25,343 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 11:02:25,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:25,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 11:02:25,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:02:25,345 INFO L87 Difference]: Start difference. First operand 164 states and 203 transitions. Second operand 5 states. [2020-12-23 11:02:25,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:02:25,514 INFO L93 Difference]: Finished difference Result 287 states and 364 transitions. [2020-12-23 11:02:25,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:02:25,515 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 48 [2020-12-23 11:02:25,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:02:25,517 INFO L225 Difference]: With dead ends: 287 [2020-12-23 11:02:25,518 INFO L226 Difference]: Without dead ends: 156 [2020-12-23 11:02:25,519 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 11:02:25,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-12-23 11:02:25,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2020-12-23 11:02:25,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-12-23 11:02:25,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 193 transitions. [2020-12-23 11:02:25,537 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 193 transitions. Word has length 48 [2020-12-23 11:02:25,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:02:25,537 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 193 transitions. [2020-12-23 11:02:25,538 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 11:02:25,538 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 193 transitions. [2020-12-23 11:02:25,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-23 11:02:25,540 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:25,540 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] [2020-12-23 11:02:25,540 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 11:02:25,540 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:25,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:25,541 INFO L82 PathProgramCache]: Analyzing trace with hash -453133940, now seen corresponding path program 1 times [2020-12-23 11:02:25,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:25,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569932910] [2020-12-23 11:02:25,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:25,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:25,743 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 11:02:25,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569932910] [2020-12-23 11:02:25,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:02:25,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-23 11:02:25,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771916814] [2020-12-23 11:02:25,745 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 11:02:25,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:25,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 11:02:25,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-23 11:02:25,746 INFO L87 Difference]: Start difference. First operand 156 states and 193 transitions. Second operand 9 states. [2020-12-23 11:02:26,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:02:26,345 INFO L93 Difference]: Finished difference Result 331 states and 434 transitions. [2020-12-23 11:02:26,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-23 11:02:26,346 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2020-12-23 11:02:26,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:02:26,349 INFO L225 Difference]: With dead ends: 331 [2020-12-23 11:02:26,349 INFO L226 Difference]: Without dead ends: 326 [2020-12-23 11:02:26,350 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-23 11:02:26,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-12-23 11:02:26,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 156. [2020-12-23 11:02:26,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-12-23 11:02:26,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 192 transitions. [2020-12-23 11:02:26,371 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 192 transitions. Word has length 49 [2020-12-23 11:02:26,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:02:26,372 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 192 transitions. [2020-12-23 11:02:26,372 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 11:02:26,372 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 192 transitions. [2020-12-23 11:02:26,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-23 11:02:26,374 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:26,374 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:02:26,374 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 11:02:26,375 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:26,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:26,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1459063162, now seen corresponding path program 1 times [2020-12-23 11:02:26,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:26,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940106178] [2020-12-23 11:02:26,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:26,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:26,575 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 11:02:26,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940106178] [2020-12-23 11:02:26,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:02:26,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-23 11:02:26,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974220502] [2020-12-23 11:02:26,577 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 11:02:26,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:26,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 11:02:26,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-23 11:02:26,579 INFO L87 Difference]: Start difference. First operand 156 states and 192 transitions. Second operand 9 states. [2020-12-23 11:02:27,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:02:27,253 INFO L93 Difference]: Finished difference Result 390 states and 518 transitions. [2020-12-23 11:02:27,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-23 11:02:27,254 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2020-12-23 11:02:27,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:02:27,258 INFO L225 Difference]: With dead ends: 390 [2020-12-23 11:02:27,258 INFO L226 Difference]: Without dead ends: 330 [2020-12-23 11:02:27,261 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-23 11:02:27,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2020-12-23 11:02:27,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 156. [2020-12-23 11:02:27,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-12-23 11:02:27,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 191 transitions. [2020-12-23 11:02:27,293 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 191 transitions. Word has length 49 [2020-12-23 11:02:27,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:02:27,293 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 191 transitions. [2020-12-23 11:02:27,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 11:02:27,294 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 191 transitions. [2020-12-23 11:02:27,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-23 11:02:27,304 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:27,304 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] [2020-12-23 11:02:27,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 11:02:27,305 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:27,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:27,306 INFO L82 PathProgramCache]: Analyzing trace with hash 8857914, now seen corresponding path program 1 times [2020-12-23 11:02:27,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:27,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612215049] [2020-12-23 11:02:27,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:27,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:27,498 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 11:02:27,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612215049] [2020-12-23 11:02:27,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:02:27,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 11:02:27,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692112993] [2020-12-23 11:02:27,500 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 11:02:27,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:27,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 11:02:27,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-12-23 11:02:27,502 INFO L87 Difference]: Start difference. First operand 156 states and 191 transitions. Second operand 8 states. [2020-12-23 11:02:27,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:02:27,899 INFO L93 Difference]: Finished difference Result 311 states and 391 transitions. [2020-12-23 11:02:27,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 11:02:27,900 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2020-12-23 11:02:27,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:02:27,902 INFO L225 Difference]: With dead ends: 311 [2020-12-23 11:02:27,902 INFO L226 Difference]: Without dead ends: 228 [2020-12-23 11:02:27,903 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-12-23 11:02:27,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-12-23 11:02:27,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 156. [2020-12-23 11:02:27,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-12-23 11:02:27,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 190 transitions. [2020-12-23 11:02:27,921 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 190 transitions. Word has length 49 [2020-12-23 11:02:27,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:02:27,921 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 190 transitions. [2020-12-23 11:02:27,922 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 11:02:27,922 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 190 transitions. [2020-12-23 11:02:27,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-23 11:02:27,923 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:27,923 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:02:27,923 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 11:02:27,923 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:27,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:27,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1308237609, now seen corresponding path program 1 times [2020-12-23 11:02:27,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:27,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433414261] [2020-12-23 11:02:27,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:27,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:28,519 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 11:02:28,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433414261] [2020-12-23 11:02:28,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:02:28,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-12-23 11:02:28,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742785667] [2020-12-23 11:02:28,521 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-12-23 11:02:28,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:28,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-23 11:02:28,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2020-12-23 11:02:28,522 INFO L87 Difference]: Start difference. First operand 156 states and 190 transitions. Second operand 19 states. [2020-12-23 11:02:30,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:02:30,795 INFO L93 Difference]: Finished difference Result 403 states and 506 transitions. [2020-12-23 11:02:30,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-23 11:02:30,795 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 51 [2020-12-23 11:02:30,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:02:30,799 INFO L225 Difference]: With dead ends: 403 [2020-12-23 11:02:30,799 INFO L226 Difference]: Without dead ends: 399 [2020-12-23 11:02:30,800 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=229, Invalid=1031, Unknown=0, NotChecked=0, Total=1260 [2020-12-23 11:02:30,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-12-23 11:02:30,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 166. [2020-12-23 11:02:30,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-12-23 11:02:30,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 205 transitions. [2020-12-23 11:02:30,821 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 205 transitions. Word has length 51 [2020-12-23 11:02:30,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:02:30,821 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 205 transitions. [2020-12-23 11:02:30,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-12-23 11:02:30,821 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 205 transitions. [2020-12-23 11:02:30,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-23 11:02:30,822 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:30,822 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:02:30,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 11:02:30,823 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:30,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:30,824 INFO L82 PathProgramCache]: Analyzing trace with hash 766441193, now seen corresponding path program 1 times [2020-12-23 11:02:30,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:30,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530562309] [2020-12-23 11:02:30,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:30,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:31,452 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 11:02:31,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530562309] [2020-12-23 11:02:31,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:02:31,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-12-23 11:02:31,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081777358] [2020-12-23 11:02:31,454 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-12-23 11:02:31,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:31,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-23 11:02:31,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2020-12-23 11:02:31,455 INFO L87 Difference]: Start difference. First operand 166 states and 205 transitions. Second operand 19 states. [2020-12-23 11:02:31,663 WARN L197 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-12-23 11:02:32,289 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2020-12-23 11:02:32,838 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-12-23 11:02:34,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:02:34,113 INFO L93 Difference]: Finished difference Result 439 states and 563 transitions. [2020-12-23 11:02:34,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-23 11:02:34,113 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 51 [2020-12-23 11:02:34,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:02:34,116 INFO L225 Difference]: With dead ends: 439 [2020-12-23 11:02:34,116 INFO L226 Difference]: Without dead ends: 392 [2020-12-23 11:02:34,118 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=212, Invalid=844, Unknown=0, NotChecked=0, Total=1056 [2020-12-23 11:02:34,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2020-12-23 11:02:34,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 172. [2020-12-23 11:02:34,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-12-23 11:02:34,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 213 transitions. [2020-12-23 11:02:34,140 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 213 transitions. Word has length 51 [2020-12-23 11:02:34,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:02:34,141 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 213 transitions. [2020-12-23 11:02:34,141 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-12-23 11:02:34,141 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 213 transitions. [2020-12-23 11:02:34,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-23 11:02:34,142 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:34,142 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] [2020-12-23 11:02:34,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 11:02:34,142 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:34,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:34,143 INFO L82 PathProgramCache]: Analyzing trace with hash -1014075955, now seen corresponding path program 1 times [2020-12-23 11:02:34,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:34,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221093451] [2020-12-23 11:02:34,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:34,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:34,767 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 11:02:34,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221093451] [2020-12-23 11:02:34,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:02:34,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-12-23 11:02:34,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101429466] [2020-12-23 11:02:34,769 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-12-23 11:02:34,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:34,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-23 11:02:34,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2020-12-23 11:02:34,771 INFO L87 Difference]: Start difference. First operand 172 states and 213 transitions. Second operand 19 states. [2020-12-23 11:02:35,035 WARN L197 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 75 [2020-12-23 11:02:35,793 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2020-12-23 11:02:35,946 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-12-23 11:02:36,428 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2020-12-23 11:02:37,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:02:37,968 INFO L93 Difference]: Finished difference Result 451 states and 594 transitions. [2020-12-23 11:02:37,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-23 11:02:37,969 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 51 [2020-12-23 11:02:37,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:02:37,973 INFO L225 Difference]: With dead ends: 451 [2020-12-23 11:02:37,973 INFO L226 Difference]: Without dead ends: 445 [2020-12-23 11:02:37,974 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2020-12-23 11:02:37,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2020-12-23 11:02:38,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 172. [2020-12-23 11:02:38,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-12-23 11:02:38,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 212 transitions. [2020-12-23 11:02:38,003 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 212 transitions. Word has length 51 [2020-12-23 11:02:38,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:02:38,004 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 212 transitions. [2020-12-23 11:02:38,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-12-23 11:02:38,004 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 212 transitions. [2020-12-23 11:02:38,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-23 11:02:38,005 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:38,005 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] [2020-12-23 11:02:38,005 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 11:02:38,006 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:38,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:38,006 INFO L82 PathProgramCache]: Analyzing trace with hash -480854780, now seen corresponding path program 1 times [2020-12-23 11:02:38,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:38,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644013654] [2020-12-23 11:02:38,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:38,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:38,785 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 11:02:38,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644013654] [2020-12-23 11:02:38,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:02:38,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-12-23 11:02:38,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979202882] [2020-12-23 11:02:38,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-12-23 11:02:38,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:38,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-12-23 11:02:38,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2020-12-23 11:02:38,788 INFO L87 Difference]: Start difference. First operand 172 states and 212 transitions. Second operand 17 states. [2020-12-23 11:02:38,937 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2020-12-23 11:02:39,595 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2020-12-23 11:02:39,789 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2020-12-23 11:02:40,021 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2020-12-23 11:02:40,241 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2020-12-23 11:02:40,442 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2020-12-23 11:02:40,705 WARN L197 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2020-12-23 11:02:40,874 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-12-23 11:02:41,057 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2020-12-23 11:02:41,204 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2020-12-23 11:02:42,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:02:42,774 INFO L93 Difference]: Finished difference Result 694 states and 943 transitions. [2020-12-23 11:02:42,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-12-23 11:02:42,774 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 51 [2020-12-23 11:02:42,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:02:42,779 INFO L225 Difference]: With dead ends: 694 [2020-12-23 11:02:42,779 INFO L226 Difference]: Without dead ends: 640 [2020-12-23 11:02:42,780 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=332, Invalid=1074, Unknown=0, NotChecked=0, Total=1406 [2020-12-23 11:02:42,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2020-12-23 11:02:42,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 161. [2020-12-23 11:02:42,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-12-23 11:02:42,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 200 transitions. [2020-12-23 11:02:42,814 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 200 transitions. Word has length 51 [2020-12-23 11:02:42,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:02:42,814 INFO L481 AbstractCegarLoop]: Abstraction has 161 states and 200 transitions. [2020-12-23 11:02:42,814 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-12-23 11:02:42,815 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 200 transitions. [2020-12-23 11:02:42,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-23 11:02:42,815 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:42,815 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] [2020-12-23 11:02:42,816 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 11:02:42,816 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:42,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:42,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1185149594, now seen corresponding path program 1 times [2020-12-23 11:02:42,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:42,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628620184] [2020-12-23 11:02:42,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:42,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:42,937 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 11:02:42,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628620184] [2020-12-23 11:02:42,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:02:42,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-23 11:02:42,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431317082] [2020-12-23 11:02:42,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 11:02:42,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:42,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 11:02:42,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-23 11:02:42,942 INFO L87 Difference]: Start difference. First operand 161 states and 200 transitions. Second operand 9 states. [2020-12-23 11:02:43,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:02:43,434 INFO L93 Difference]: Finished difference Result 240 states and 300 transitions. [2020-12-23 11:02:43,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-23 11:02:43,435 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 52 [2020-12-23 11:02:43,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:02:43,437 INFO L225 Difference]: With dead ends: 240 [2020-12-23 11:02:43,437 INFO L226 Difference]: Without dead ends: 233 [2020-12-23 11:02:43,438 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-12-23 11:02:43,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2020-12-23 11:02:43,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 161. [2020-12-23 11:02:43,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-12-23 11:02:43,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 198 transitions. [2020-12-23 11:02:43,474 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 198 transitions. Word has length 52 [2020-12-23 11:02:43,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:02:43,474 INFO L481 AbstractCegarLoop]: Abstraction has 161 states and 198 transitions. [2020-12-23 11:02:43,474 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 11:02:43,474 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 198 transitions. [2020-12-23 11:02:43,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-23 11:02:43,475 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:43,475 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:02:43,476 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-23 11:02:43,476 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:43,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:43,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1721906586, now seen corresponding path program 1 times [2020-12-23 11:02:43,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:43,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839141990] [2020-12-23 11:02:43,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:43,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:43,666 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 11:02:43,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839141990] [2020-12-23 11:02:43,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:02:43,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 11:02:43,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511241331] [2020-12-23 11:02:43,668 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 11:02:43,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:43,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 11:02:43,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-12-23 11:02:43,669 INFO L87 Difference]: Start difference. First operand 161 states and 198 transitions. Second operand 10 states. [2020-12-23 11:02:45,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:02:45,030 INFO L93 Difference]: Finished difference Result 468 states and 622 transitions. [2020-12-23 11:02:45,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-23 11:02:45,030 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 52 [2020-12-23 11:02:45,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:02:45,034 INFO L225 Difference]: With dead ends: 468 [2020-12-23 11:02:45,034 INFO L226 Difference]: Without dead ends: 407 [2020-12-23 11:02:45,036 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=176, Invalid=526, Unknown=0, NotChecked=0, Total=702 [2020-12-23 11:02:45,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2020-12-23 11:02:45,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 161. [2020-12-23 11:02:45,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-12-23 11:02:45,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 197 transitions. [2020-12-23 11:02:45,068 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 197 transitions. Word has length 52 [2020-12-23 11:02:45,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:02:45,069 INFO L481 AbstractCegarLoop]: Abstraction has 161 states and 197 transitions. [2020-12-23 11:02:45,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 11:02:45,069 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 197 transitions. [2020-12-23 11:02:45,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-23 11:02:45,070 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:45,070 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] [2020-12-23 11:02:45,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-23 11:02:45,070 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:45,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:45,071 INFO L82 PathProgramCache]: Analyzing trace with hash -314743810, now seen corresponding path program 1 times [2020-12-23 11:02:45,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:45,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654399749] [2020-12-23 11:02:45,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:45,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:45,749 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 11:02:45,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654399749] [2020-12-23 11:02:45,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:02:45,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-12-23 11:02:45,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238182902] [2020-12-23 11:02:45,751 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-12-23 11:02:45,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:45,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-12-23 11:02:45,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2020-12-23 11:02:45,752 INFO L87 Difference]: Start difference. First operand 161 states and 197 transitions. Second operand 16 states. [2020-12-23 11:02:45,883 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2020-12-23 11:02:46,322 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2020-12-23 11:02:46,569 WARN L197 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-12-23 11:02:46,853 WARN L197 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-12-23 11:02:47,129 WARN L197 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-12-23 11:02:47,527 WARN L197 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-12-23 11:02:47,736 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-12-23 11:02:48,082 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-12-23 11:02:48,228 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2020-12-23 11:02:49,332 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-12-23 11:02:49,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:02:49,888 INFO L93 Difference]: Finished difference Result 872 states and 1204 transitions. [2020-12-23 11:02:49,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-12-23 11:02:49,889 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 52 [2020-12-23 11:02:49,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:02:49,894 INFO L225 Difference]: With dead ends: 872 [2020-12-23 11:02:49,895 INFO L226 Difference]: Without dead ends: 856 [2020-12-23 11:02:49,896 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=256, Invalid=866, Unknown=0, NotChecked=0, Total=1122 [2020-12-23 11:02:49,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2020-12-23 11:02:49,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 153. [2020-12-23 11:02:49,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-12-23 11:02:49,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 187 transitions. [2020-12-23 11:02:49,935 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 187 transitions. Word has length 52 [2020-12-23 11:02:49,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:02:49,936 INFO L481 AbstractCegarLoop]: Abstraction has 153 states and 187 transitions. [2020-12-23 11:02:49,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-12-23 11:02:49,936 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 187 transitions. [2020-12-23 11:02:49,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-23 11:02:49,937 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:49,937 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] [2020-12-23 11:02:49,937 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-23 11:02:49,937 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:49,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:49,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1294616090, now seen corresponding path program 1 times [2020-12-23 11:02:49,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:49,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011910612] [2020-12-23 11:02:49,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:49,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:50,151 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 11:02:50,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011910612] [2020-12-23 11:02:50,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:02:50,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-23 11:02:50,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637808755] [2020-12-23 11:02:50,153 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-23 11:02:50,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:50,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-23 11:02:50,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-23 11:02:50,154 INFO L87 Difference]: Start difference. First operand 153 states and 187 transitions. Second operand 11 states. [2020-12-23 11:02:52,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:02:52,080 INFO L93 Difference]: Finished difference Result 567 states and 771 transitions. [2020-12-23 11:02:52,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-23 11:02:52,081 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 52 [2020-12-23 11:02:52,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:02:52,085 INFO L225 Difference]: With dead ends: 567 [2020-12-23 11:02:52,085 INFO L226 Difference]: Without dead ends: 560 [2020-12-23 11:02:52,086 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-23 11:02:52,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-12-23 11:02:52,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 153. [2020-12-23 11:02:52,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-12-23 11:02:52,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 186 transitions. [2020-12-23 11:02:52,125 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 186 transitions. Word has length 52 [2020-12-23 11:02:52,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:02:52,125 INFO L481 AbstractCegarLoop]: Abstraction has 153 states and 186 transitions. [2020-12-23 11:02:52,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-23 11:02:52,126 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 186 transitions. [2020-12-23 11:02:52,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-23 11:02:52,126 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:52,126 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] [2020-12-23 11:02:52,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-23 11:02:52,126 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:52,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:52,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1671010270, now seen corresponding path program 1 times [2020-12-23 11:02:52,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:52,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034801229] [2020-12-23 11:02:52,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:52,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:52,724 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 11:02:52,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034801229] [2020-12-23 11:02:52,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:02:52,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-12-23 11:02:52,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42565185] [2020-12-23 11:02:52,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-12-23 11:02:52,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:52,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-12-23 11:02:52,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2020-12-23 11:02:52,726 INFO L87 Difference]: Start difference. First operand 153 states and 186 transitions. Second operand 16 states. [2020-12-23 11:02:53,352 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2020-12-23 11:02:53,485 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-12-23 11:02:53,663 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-12-23 11:02:53,869 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2020-12-23 11:02:54,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:02:54,631 INFO L93 Difference]: Finished difference Result 274 states and 349 transitions. [2020-12-23 11:02:54,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-12-23 11:02:54,631 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 52 [2020-12-23 11:02:54,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:02:54,633 INFO L225 Difference]: With dead ends: 274 [2020-12-23 11:02:54,633 INFO L226 Difference]: Without dead ends: 227 [2020-12-23 11:02:54,634 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=164, Invalid=538, Unknown=0, NotChecked=0, Total=702 [2020-12-23 11:02:54,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2020-12-23 11:02:54,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 147. [2020-12-23 11:02:54,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-12-23 11:02:54,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 178 transitions. [2020-12-23 11:02:54,674 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 178 transitions. Word has length 52 [2020-12-23 11:02:54,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:02:54,675 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 178 transitions. [2020-12-23 11:02:54,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-12-23 11:02:54,675 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 178 transitions. [2020-12-23 11:02:54,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-23 11:02:54,675 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:54,676 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] [2020-12-23 11:02:54,676 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-23 11:02:54,676 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:54,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:54,677 INFO L82 PathProgramCache]: Analyzing trace with hash -988369889, now seen corresponding path program 1 times [2020-12-23 11:02:54,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:54,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788813979] [2020-12-23 11:02:54,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:54,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:54,787 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 11:02:54,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788813979] [2020-12-23 11:02:54,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:02:54,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-23 11:02:54,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772979069] [2020-12-23 11:02:54,788 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 11:02:54,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:54,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 11:02:54,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-23 11:02:54,789 INFO L87 Difference]: Start difference. First operand 147 states and 178 transitions. Second operand 9 states. [2020-12-23 11:02:55,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:02:55,353 INFO L93 Difference]: Finished difference Result 272 states and 349 transitions. [2020-12-23 11:02:55,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-23 11:02:55,353 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 53 [2020-12-23 11:02:55,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:02:55,355 INFO L225 Difference]: With dead ends: 272 [2020-12-23 11:02:55,355 INFO L226 Difference]: Without dead ends: 211 [2020-12-23 11:02:55,356 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2020-12-23 11:02:55,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2020-12-23 11:02:55,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 147. [2020-12-23 11:02:55,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-12-23 11:02:55,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 177 transitions. [2020-12-23 11:02:55,397 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 177 transitions. Word has length 53 [2020-12-23 11:02:55,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:02:55,397 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 177 transitions. [2020-12-23 11:02:55,397 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 11:02:55,397 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 177 transitions. [2020-12-23 11:02:55,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-23 11:02:55,398 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:55,398 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] [2020-12-23 11:02:55,398 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-23 11:02:55,399 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:55,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:55,399 INFO L82 PathProgramCache]: Analyzing trace with hash 453799885, now seen corresponding path program 1 times [2020-12-23 11:02:55,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:55,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795754205] [2020-12-23 11:02:55,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:55,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:55,519 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 11:02:55,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795754205] [2020-12-23 11:02:55,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:02:55,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-23 11:02:55,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11865894] [2020-12-23 11:02:55,520 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 11:02:55,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:55,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 11:02:55,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-23 11:02:55,521 INFO L87 Difference]: Start difference. First operand 147 states and 177 transitions. Second operand 9 states. [2020-12-23 11:02:56,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:02:56,119 INFO L93 Difference]: Finished difference Result 228 states and 280 transitions. [2020-12-23 11:02:56,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-23 11:02:56,120 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 53 [2020-12-23 11:02:56,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:02:56,122 INFO L225 Difference]: With dead ends: 228 [2020-12-23 11:02:56,122 INFO L226 Difference]: Without dead ends: 221 [2020-12-23 11:02:56,123 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2020-12-23 11:02:56,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-12-23 11:02:56,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 143. [2020-12-23 11:02:56,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-12-23 11:02:56,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 172 transitions. [2020-12-23 11:02:56,158 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 172 transitions. Word has length 53 [2020-12-23 11:02:56,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:02:56,159 INFO L481 AbstractCegarLoop]: Abstraction has 143 states and 172 transitions. [2020-12-23 11:02:56,159 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 11:02:56,159 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 172 transitions. [2020-12-23 11:02:56,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-23 11:02:56,160 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:56,160 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] [2020-12-23 11:02:56,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-23 11:02:56,160 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:56,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:56,161 INFO L82 PathProgramCache]: Analyzing trace with hash 653628022, now seen corresponding path program 1 times [2020-12-23 11:02:56,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:56,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233851304] [2020-12-23 11:02:56,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:56,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:56,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:02:56,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233851304] [2020-12-23 11:02:56,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:02:56,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-23 11:02:56,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148455554] [2020-12-23 11:02:56,693 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-23 11:02:56,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:56,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-23 11:02:56,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2020-12-23 11:02:56,694 INFO L87 Difference]: Start difference. First operand 143 states and 172 transitions. Second operand 18 states. [2020-12-23 11:02:58,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:02:58,886 INFO L93 Difference]: Finished difference Result 350 states and 444 transitions. [2020-12-23 11:02:58,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-23 11:02:58,887 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 54 [2020-12-23 11:02:58,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:02:58,888 INFO L225 Difference]: With dead ends: 350 [2020-12-23 11:02:58,889 INFO L226 Difference]: Without dead ends: 342 [2020-12-23 11:02:58,889 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=218, Invalid=904, Unknown=0, NotChecked=0, Total=1122 [2020-12-23 11:02:58,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-12-23 11:02:58,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 143. [2020-12-23 11:02:58,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-12-23 11:02:58,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 171 transitions. [2020-12-23 11:02:58,940 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 171 transitions. Word has length 54 [2020-12-23 11:02:58,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:02:58,940 INFO L481 AbstractCegarLoop]: Abstraction has 143 states and 171 transitions. [2020-12-23 11:02:58,940 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-12-23 11:02:58,940 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 171 transitions. [2020-12-23 11:02:58,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-23 11:02:58,941 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:02:58,941 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] [2020-12-23 11:02:58,941 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-23 11:02:58,941 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:02:58,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:02:58,942 INFO L82 PathProgramCache]: Analyzing trace with hash -1899159370, now seen corresponding path program 1 times [2020-12-23 11:02:58,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:02:58,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338917338] [2020-12-23 11:02:58,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:02:58,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:02:59,423 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 11:02:59,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338917338] [2020-12-23 11:02:59,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:02:59,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-23 11:02:59,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054045120] [2020-12-23 11:02:59,428 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-23 11:02:59,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:02:59,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-23 11:02:59,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2020-12-23 11:02:59,432 INFO L87 Difference]: Start difference. First operand 143 states and 171 transitions. Second operand 18 states. [2020-12-23 11:02:59,641 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2020-12-23 11:03:00,275 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2020-12-23 11:03:02,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:03:02,343 INFO L93 Difference]: Finished difference Result 451 states and 589 transitions. [2020-12-23 11:03:02,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-23 11:03:02,343 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 54 [2020-12-23 11:03:02,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:03:02,346 INFO L225 Difference]: With dead ends: 451 [2020-12-23 11:03:02,346 INFO L226 Difference]: Without dead ends: 445 [2020-12-23 11:03:02,347 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2020-12-23 11:03:02,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2020-12-23 11:03:02,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 149. [2020-12-23 11:03:02,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-12-23 11:03:02,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 179 transitions. [2020-12-23 11:03:02,388 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 179 transitions. Word has length 54 [2020-12-23 11:03:02,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:03:02,388 INFO L481 AbstractCegarLoop]: Abstraction has 149 states and 179 transitions. [2020-12-23 11:03:02,388 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-12-23 11:03:02,388 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 179 transitions. [2020-12-23 11:03:02,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-23 11:03:02,389 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:03:02,389 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:03:02,389 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-23 11:03:02,389 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:03:02,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:03:02,390 INFO L82 PathProgramCache]: Analyzing trace with hash -1464456906, now seen corresponding path program 1 times [2020-12-23 11:03:02,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:03:02,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395652750] [2020-12-23 11:03:02,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:03:02,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:03:02,895 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 11:03:02,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395652750] [2020-12-23 11:03:02,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:03:02,895 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-23 11:03:02,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831405234] [2020-12-23 11:03:02,896 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-23 11:03:02,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:03:02,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-23 11:03:02,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2020-12-23 11:03:02,896 INFO L87 Difference]: Start difference. First operand 149 states and 179 transitions. Second operand 18 states. [2020-12-23 11:03:03,084 WARN L197 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-12-23 11:03:03,590 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-12-23 11:03:05,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:03:05,319 INFO L93 Difference]: Finished difference Result 353 states and 448 transitions. [2020-12-23 11:03:05,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-23 11:03:05,320 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 54 [2020-12-23 11:03:05,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:03:05,321 INFO L225 Difference]: With dead ends: 353 [2020-12-23 11:03:05,321 INFO L226 Difference]: Without dead ends: 345 [2020-12-23 11:03:05,322 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=209, Invalid=721, Unknown=0, NotChecked=0, Total=930 [2020-12-23 11:03:05,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-12-23 11:03:05,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 154. [2020-12-23 11:03:05,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-12-23 11:03:05,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 184 transitions. [2020-12-23 11:03:05,363 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 184 transitions. Word has length 54 [2020-12-23 11:03:05,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:03:05,363 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 184 transitions. [2020-12-23 11:03:05,363 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-12-23 11:03:05,363 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 184 transitions. [2020-12-23 11:03:05,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-23 11:03:05,364 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:03:05,364 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] [2020-12-23 11:03:05,364 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-23 11:03:05,364 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:03:05,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:03:05,365 INFO L82 PathProgramCache]: Analyzing trace with hash 2098262835, now seen corresponding path program 1 times [2020-12-23 11:03:05,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:03:05,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518541159] [2020-12-23 11:03:05,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:03:05,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:03:05,927 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 11:03:05,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518541159] [2020-12-23 11:03:05,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:03:05,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-12-23 11:03:05,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604886222] [2020-12-23 11:03:05,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-12-23 11:03:05,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:03:05,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-12-23 11:03:05,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-12-23 11:03:05,931 INFO L87 Difference]: Start difference. First operand 154 states and 184 transitions. Second operand 15 states. [2020-12-23 11:03:06,541 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 36 [2020-12-23 11:03:06,721 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 39 [2020-12-23 11:03:06,902 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 39 [2020-12-23 11:03:07,099 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2020-12-23 11:03:07,303 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2020-12-23 11:03:07,682 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 32 [2020-12-23 11:03:09,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:03:09,014 INFO L93 Difference]: Finished difference Result 579 states and 779 transitions. [2020-12-23 11:03:09,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-12-23 11:03:09,015 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 55 [2020-12-23 11:03:09,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:03:09,018 INFO L225 Difference]: With dead ends: 579 [2020-12-23 11:03:09,018 INFO L226 Difference]: Without dead ends: 573 [2020-12-23 11:03:09,019 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=217, Invalid=713, Unknown=0, NotChecked=0, Total=930 [2020-12-23 11:03:09,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2020-12-23 11:03:09,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 154. [2020-12-23 11:03:09,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-12-23 11:03:09,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 184 transitions. [2020-12-23 11:03:09,062 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 184 transitions. Word has length 55 [2020-12-23 11:03:09,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:03:09,063 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 184 transitions. [2020-12-23 11:03:09,063 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-12-23 11:03:09,063 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 184 transitions. [2020-12-23 11:03:09,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-23 11:03:09,063 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:03:09,063 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] [2020-12-23 11:03:09,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-23 11:03:09,064 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:03:09,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:03:09,064 INFO L82 PathProgramCache]: Analyzing trace with hash -220748721, now seen corresponding path program 1 times [2020-12-23 11:03:09,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:03:09,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332026414] [2020-12-23 11:03:09,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:03:09,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:03:09,755 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 11:03:09,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332026414] [2020-12-23 11:03:09,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:03:09,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-12-23 11:03:09,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108500748] [2020-12-23 11:03:09,756 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-12-23 11:03:09,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:03:09,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-23 11:03:09,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-12-23 11:03:09,758 INFO L87 Difference]: Start difference. First operand 154 states and 184 transitions. Second operand 14 states. [2020-12-23 11:03:10,351 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 42 [2020-12-23 11:03:10,518 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 41 [2020-12-23 11:03:10,684 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 41 [2020-12-23 11:03:10,844 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2020-12-23 11:03:11,157 WARN L197 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2020-12-23 11:03:11,536 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2020-12-23 11:03:12,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:03:12,155 INFO L93 Difference]: Finished difference Result 417 states and 555 transitions. [2020-12-23 11:03:12,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-23 11:03:12,158 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 55 [2020-12-23 11:03:12,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:03:12,160 INFO L225 Difference]: With dead ends: 417 [2020-12-23 11:03:12,160 INFO L226 Difference]: Without dead ends: 405 [2020-12-23 11:03:12,160 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=173, Invalid=583, Unknown=0, NotChecked=0, Total=756 [2020-12-23 11:03:12,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2020-12-23 11:03:12,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 142. [2020-12-23 11:03:12,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-12-23 11:03:12,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 172 transitions. [2020-12-23 11:03:12,196 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 172 transitions. Word has length 55 [2020-12-23 11:03:12,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:03:12,196 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 172 transitions. [2020-12-23 11:03:12,196 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-12-23 11:03:12,196 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 172 transitions. [2020-12-23 11:03:12,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-23 11:03:12,196 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:03:12,197 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] [2020-12-23 11:03:12,197 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-23 11:03:12,197 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:03:12,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:03:12,197 INFO L82 PathProgramCache]: Analyzing trace with hash -1345030097, now seen corresponding path program 1 times [2020-12-23 11:03:12,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:03:12,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045763501] [2020-12-23 11:03:12,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:03:12,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:03:12,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:03:12,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045763501] [2020-12-23 11:03:12,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:03:12,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-12-23 11:03:12,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421026691] [2020-12-23 11:03:12,650 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-23 11:03:12,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:03:12,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-23 11:03:12,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-12-23 11:03:12,651 INFO L87 Difference]: Start difference. First operand 142 states and 172 transitions. Second operand 13 states. [2020-12-23 11:03:12,991 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2020-12-23 11:03:14,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:03:14,312 INFO L93 Difference]: Finished difference Result 403 states and 540 transitions. [2020-12-23 11:03:14,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-23 11:03:14,315 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 55 [2020-12-23 11:03:14,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:03:14,317 INFO L225 Difference]: With dead ends: 403 [2020-12-23 11:03:14,317 INFO L226 Difference]: Without dead ends: 397 [2020-12-23 11:03:14,318 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2020-12-23 11:03:14,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2020-12-23 11:03:14,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 142. [2020-12-23 11:03:14,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-12-23 11:03:14,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 172 transitions. [2020-12-23 11:03:14,372 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 172 transitions. Word has length 55 [2020-12-23 11:03:14,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:03:14,373 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 172 transitions. [2020-12-23 11:03:14,373 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-23 11:03:14,373 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 172 transitions. [2020-12-23 11:03:14,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-23 11:03:14,373 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:03:14,374 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:03:14,374 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-23 11:03:14,374 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:03:14,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:03:14,374 INFO L82 PathProgramCache]: Analyzing trace with hash -1456871967, now seen corresponding path program 1 times [2020-12-23 11:03:14,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:03:14,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293867564] [2020-12-23 11:03:14,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:03:14,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:03:14,722 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 11:03:14,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293867564] [2020-12-23 11:03:14,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:03:14,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-23 11:03:14,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918794566] [2020-12-23 11:03:14,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-23 11:03:14,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:03:14,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-23 11:03:14,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-12-23 11:03:14,724 INFO L87 Difference]: Start difference. First operand 142 states and 172 transitions. Second operand 11 states. [2020-12-23 11:03:15,142 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-12-23 11:03:15,267 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-12-23 11:03:16,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:03:16,027 INFO L93 Difference]: Finished difference Result 384 states and 521 transitions. [2020-12-23 11:03:16,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-23 11:03:16,028 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 55 [2020-12-23 11:03:16,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:03:16,030 INFO L225 Difference]: With dead ends: 384 [2020-12-23 11:03:16,030 INFO L226 Difference]: Without dead ends: 361 [2020-12-23 11:03:16,031 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=158, Invalid=394, Unknown=0, NotChecked=0, Total=552 [2020-12-23 11:03:16,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2020-12-23 11:03:16,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 119. [2020-12-23 11:03:16,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-12-23 11:03:16,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 147 transitions. [2020-12-23 11:03:16,079 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 147 transitions. Word has length 55 [2020-12-23 11:03:16,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:03:16,079 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 147 transitions. [2020-12-23 11:03:16,079 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-23 11:03:16,079 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 147 transitions. [2020-12-23 11:03:16,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-12-23 11:03:16,080 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:03:16,080 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] [2020-12-23 11:03:16,080 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-23 11:03:16,080 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:03:16,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:03:16,081 INFO L82 PathProgramCache]: Analyzing trace with hash 2096401114, now seen corresponding path program 1 times [2020-12-23 11:03:16,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:03:16,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770146327] [2020-12-23 11:03:16,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:03:16,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:03:16,634 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 11:03:16,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770146327] [2020-12-23 11:03:16,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:03:16,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-12-23 11:03:16,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622600194] [2020-12-23 11:03:16,636 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-12-23 11:03:16,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:03:16,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-12-23 11:03:16,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-12-23 11:03:16,636 INFO L87 Difference]: Start difference. First operand 119 states and 147 transitions. Second operand 16 states. [2020-12-23 11:03:18,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:03:18,526 INFO L93 Difference]: Finished difference Result 324 states and 438 transitions. [2020-12-23 11:03:18,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-23 11:03:18,529 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 56 [2020-12-23 11:03:18,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:03:18,532 INFO L225 Difference]: With dead ends: 324 [2020-12-23 11:03:18,532 INFO L226 Difference]: Without dead ends: 318 [2020-12-23 11:03:18,532 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2020-12-23 11:03:18,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-12-23 11:03:18,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 101. [2020-12-23 11:03:18,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-12-23 11:03:18,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 126 transitions. [2020-12-23 11:03:18,574 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 126 transitions. Word has length 56 [2020-12-23 11:03:18,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:03:18,574 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 126 transitions. [2020-12-23 11:03:18,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-12-23 11:03:18,574 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 126 transitions. [2020-12-23 11:03:18,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-12-23 11:03:18,574 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:03:18,574 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:03:18,575 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-23 11:03:18,575 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:03:18,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:03:18,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1406506919, now seen corresponding path program 1 times [2020-12-23 11:03:18,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:03:18,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995338220] [2020-12-23 11:03:18,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:03:18,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:03:18,636 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 11:03:18,636 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995338220] [2020-12-23 11:03:18,636 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:03:18,637 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:03:18,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212318044] [2020-12-23 11:03:18,637 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:03:18,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:03:18,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:03:18,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:03:18,638 INFO L87 Difference]: Start difference. First operand 101 states and 126 transitions. Second operand 3 states. [2020-12-23 11:03:18,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:03:18,731 INFO L93 Difference]: Finished difference Result 183 states and 246 transitions. [2020-12-23 11:03:18,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:03:18,731 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2020-12-23 11:03:18,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:03:18,732 INFO L225 Difference]: With dead ends: 183 [2020-12-23 11:03:18,732 INFO L226 Difference]: Without dead ends: 140 [2020-12-23 11:03:18,733 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 11:03:18,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-12-23 11:03:18,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 138. [2020-12-23 11:03:18,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-12-23 11:03:18,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 180 transitions. [2020-12-23 11:03:18,790 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 180 transitions. Word has length 72 [2020-12-23 11:03:18,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:03:18,790 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 180 transitions. [2020-12-23 11:03:18,790 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:03:18,791 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 180 transitions. [2020-12-23 11:03:18,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-12-23 11:03:18,791 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:03:18,791 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:03:18,792 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-12-23 11:03:18,792 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:03:18,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:03:18,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1673936966, now seen corresponding path program 1 times [2020-12-23 11:03:18,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:03:18,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904446671] [2020-12-23 11:03:18,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:03:18,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:03:18,872 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 11:03:18,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904446671] [2020-12-23 11:03:18,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:03:18,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 11:03:18,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173365811] [2020-12-23 11:03:18,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 11:03:18,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:03:18,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 11:03:18,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:03:18,874 INFO L87 Difference]: Start difference. First operand 138 states and 180 transitions. Second operand 5 states. [2020-12-23 11:03:19,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:03:19,165 INFO L93 Difference]: Finished difference Result 387 states and 546 transitions. [2020-12-23 11:03:19,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:03:19,166 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 74 [2020-12-23 11:03:19,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:03:19,168 INFO L225 Difference]: With dead ends: 387 [2020-12-23 11:03:19,168 INFO L226 Difference]: Without dead ends: 307 [2020-12-23 11:03:19,169 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:03:19,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-12-23 11:03:19,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 179. [2020-12-23 11:03:19,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-12-23 11:03:19,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 242 transitions. [2020-12-23 11:03:19,283 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 242 transitions. Word has length 74 [2020-12-23 11:03:19,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:03:19,283 INFO L481 AbstractCegarLoop]: Abstraction has 179 states and 242 transitions. [2020-12-23 11:03:19,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 11:03:19,283 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 242 transitions. [2020-12-23 11:03:19,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-12-23 11:03:19,284 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:03:19,284 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:03:19,284 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-12-23 11:03:19,284 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:03:19,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:03:19,285 INFO L82 PathProgramCache]: Analyzing trace with hash -1695280855, now seen corresponding path program 1 times [2020-12-23 11:03:19,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:03:19,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167787549] [2020-12-23 11:03:19,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:03:19,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:03:19,347 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 11:03:19,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167787549] [2020-12-23 11:03:19,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:03:19,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:03:19,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915548659] [2020-12-23 11:03:19,348 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:03:19,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:03:19,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:03:19,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:03:19,349 INFO L87 Difference]: Start difference. First operand 179 states and 242 transitions. Second operand 3 states. [2020-12-23 11:03:19,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:03:19,568 INFO L93 Difference]: Finished difference Result 384 states and 547 transitions. [2020-12-23 11:03:19,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:03:19,570 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-12-23 11:03:19,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:03:19,571 INFO L225 Difference]: With dead ends: 384 [2020-12-23 11:03:19,571 INFO L226 Difference]: Without dead ends: 263 [2020-12-23 11:03:19,572 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 11:03:19,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2020-12-23 11:03:19,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 261. [2020-12-23 11:03:19,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-12-23 11:03:19,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 362 transitions. [2020-12-23 11:03:19,751 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 362 transitions. Word has length 74 [2020-12-23 11:03:19,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:03:19,751 INFO L481 AbstractCegarLoop]: Abstraction has 261 states and 362 transitions. [2020-12-23 11:03:19,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:03:19,752 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 362 transitions. [2020-12-23 11:03:19,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-12-23 11:03:19,752 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:03:19,752 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:03:19,753 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-12-23 11:03:19,753 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:03:19,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:03:19,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1859946120, now seen corresponding path program 1 times [2020-12-23 11:03:19,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:03:19,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738700577] [2020-12-23 11:03:19,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:03:19,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:03:19,818 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 11:03:19,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738700577] [2020-12-23 11:03:19,818 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:03:19,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:03:19,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257197419] [2020-12-23 11:03:19,819 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:03:19,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:03:19,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:03:19,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:03:19,820 INFO L87 Difference]: Start difference. First operand 261 states and 362 transitions. Second operand 3 states. [2020-12-23 11:03:20,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:03:20,106 INFO L93 Difference]: Finished difference Result 637 states and 911 transitions. [2020-12-23 11:03:20,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:03:20,107 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-12-23 11:03:20,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:03:20,109 INFO L225 Difference]: With dead ends: 637 [2020-12-23 11:03:20,109 INFO L226 Difference]: Without dead ends: 434 [2020-12-23 11:03:20,110 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 11:03:20,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-12-23 11:03:20,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 427. [2020-12-23 11:03:20,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2020-12-23 11:03:20,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 594 transitions. [2020-12-23 11:03:20,330 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 594 transitions. Word has length 74 [2020-12-23 11:03:20,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:03:20,330 INFO L481 AbstractCegarLoop]: Abstraction has 427 states and 594 transitions. [2020-12-23 11:03:20,330 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:03:20,330 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 594 transitions. [2020-12-23 11:03:20,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-12-23 11:03:20,331 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:03:20,331 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:03:20,331 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-12-23 11:03:20,331 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:03:20,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:03:20,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1889765056, now seen corresponding path program 1 times [2020-12-23 11:03:20,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:03:20,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281041117] [2020-12-23 11:03:20,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:03:20,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:03:20,410 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 11:03:20,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281041117] [2020-12-23 11:03:20,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:03:20,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 11:03:20,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612287477] [2020-12-23 11:03:20,411 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 11:03:20,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:03:20,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 11:03:20,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:03:20,412 INFO L87 Difference]: Start difference. First operand 427 states and 594 transitions. Second operand 5 states. [2020-12-23 11:03:20,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:03:20,978 INFO L93 Difference]: Finished difference Result 1121 states and 1590 transitions. [2020-12-23 11:03:20,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:03:20,979 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 74 [2020-12-23 11:03:20,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:03:20,983 INFO L225 Difference]: With dead ends: 1121 [2020-12-23 11:03:20,984 INFO L226 Difference]: Without dead ends: 901 [2020-12-23 11:03:20,985 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:03:20,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2020-12-23 11:03:21,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 651. [2020-12-23 11:03:21,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 651 states. [2020-12-23 11:03:21,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 916 transitions. [2020-12-23 11:03:21,559 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 916 transitions. Word has length 74 [2020-12-23 11:03:21,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:03:21,560 INFO L481 AbstractCegarLoop]: Abstraction has 651 states and 916 transitions. [2020-12-23 11:03:21,560 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 11:03:21,560 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 916 transitions. [2020-12-23 11:03:21,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-23 11:03:21,561 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:03:21,561 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:03:21,561 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-12-23 11:03:21,561 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:03:21,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:03:21,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1073266559, now seen corresponding path program 1 times [2020-12-23 11:03:21,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:03:21,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501619467] [2020-12-23 11:03:21,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:03:21,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:03:21,620 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 11:03:21,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501619467] [2020-12-23 11:03:21,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:03:21,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:03:21,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341697883] [2020-12-23 11:03:21,621 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:03:21,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:03:21,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:03:21,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:03:21,622 INFO L87 Difference]: Start difference. First operand 651 states and 916 transitions. Second operand 3 states. [2020-12-23 11:03:22,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:03:22,296 INFO L93 Difference]: Finished difference Result 1773 states and 2512 transitions. [2020-12-23 11:03:22,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:03:22,297 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-12-23 11:03:22,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:03:22,301 INFO L225 Difference]: With dead ends: 1773 [2020-12-23 11:03:22,301 INFO L226 Difference]: Without dead ends: 1180 [2020-12-23 11:03:22,302 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 11:03:22,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2020-12-23 11:03:22,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 1114. [2020-12-23 11:03:22,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1114 states. [2020-12-23 11:03:22,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1114 states to 1114 states and 1561 transitions. [2020-12-23 11:03:22,921 INFO L78 Accepts]: Start accepts. Automaton has 1114 states and 1561 transitions. Word has length 75 [2020-12-23 11:03:22,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:03:22,921 INFO L481 AbstractCegarLoop]: Abstraction has 1114 states and 1561 transitions. [2020-12-23 11:03:22,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:03:22,921 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 1561 transitions. [2020-12-23 11:03:22,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-12-23 11:03:22,922 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:03:22,922 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:03:22,922 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-12-23 11:03:22,922 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:03:22,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:03:22,923 INFO L82 PathProgramCache]: Analyzing trace with hash -391890934, now seen corresponding path program 1 times [2020-12-23 11:03:22,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:03:22,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883446118] [2020-12-23 11:03:22,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:03:22,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:03:22,973 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 11:03:22,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883446118] [2020-12-23 11:03:22,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:03:22,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:03:22,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042418369] [2020-12-23 11:03:22,974 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:03:22,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:03:22,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:03:22,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:03:22,975 INFO L87 Difference]: Start difference. First operand 1114 states and 1561 transitions. Second operand 3 states. [2020-12-23 11:03:24,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:03:24,129 INFO L93 Difference]: Finished difference Result 3098 states and 4335 transitions. [2020-12-23 11:03:24,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:03:24,130 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2020-12-23 11:03:24,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:03:24,137 INFO L225 Difference]: With dead ends: 3098 [2020-12-23 11:03:24,137 INFO L226 Difference]: Without dead ends: 2042 [2020-12-23 11:03:24,139 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 11:03:24,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2042 states. [2020-12-23 11:03:25,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2042 to 1912. [2020-12-23 11:03:25,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1912 states. [2020-12-23 11:03:25,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1912 states to 1912 states and 2643 transitions. [2020-12-23 11:03:25,242 INFO L78 Accepts]: Start accepts. Automaton has 1912 states and 2643 transitions. Word has length 76 [2020-12-23 11:03:25,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:03:25,242 INFO L481 AbstractCegarLoop]: Abstraction has 1912 states and 2643 transitions. [2020-12-23 11:03:25,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:03:25,242 INFO L276 IsEmpty]: Start isEmpty. Operand 1912 states and 2643 transitions. [2020-12-23 11:03:25,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-23 11:03:25,243 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:03:25,243 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:03:25,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-12-23 11:03:25,244 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:03:25,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:03:25,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1183434290, now seen corresponding path program 1 times [2020-12-23 11:03:25,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:03:25,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462994353] [2020-12-23 11:03:25,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:03:25,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:03:25,330 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 11:03:25,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462994353] [2020-12-23 11:03:25,330 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:03:25,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 11:03:25,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299581688] [2020-12-23 11:03:25,331 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 11:03:25,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:03:25,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 11:03:25,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-23 11:03:25,332 INFO L87 Difference]: Start difference. First operand 1912 states and 2643 transitions. Second operand 6 states. [2020-12-23 11:03:27,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:03:27,387 INFO L93 Difference]: Finished difference Result 3323 states and 4551 transitions. [2020-12-23 11:03:27,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 11:03:27,388 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 77 [2020-12-23 11:03:27,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:03:27,398 INFO L225 Difference]: With dead ends: 3323 [2020-12-23 11:03:27,398 INFO L226 Difference]: Without dead ends: 3321 [2020-12-23 11:03:27,399 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-12-23 11:03:27,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3321 states. [2020-12-23 11:03:28,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3321 to 1984. [2020-12-23 11:03:28,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1984 states. [2020-12-23 11:03:28,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1984 states to 1984 states and 2699 transitions. [2020-12-23 11:03:28,613 INFO L78 Accepts]: Start accepts. Automaton has 1984 states and 2699 transitions. Word has length 77 [2020-12-23 11:03:28,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:03:28,613 INFO L481 AbstractCegarLoop]: Abstraction has 1984 states and 2699 transitions. [2020-12-23 11:03:28,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 11:03:28,614 INFO L276 IsEmpty]: Start isEmpty. Operand 1984 states and 2699 transitions. [2020-12-23 11:03:28,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-23 11:03:28,614 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:03:28,615 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:03:28,615 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-12-23 11:03:28,615 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:03:28,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:03:28,615 INFO L82 PathProgramCache]: Analyzing trace with hash -696816699, now seen corresponding path program 1 times [2020-12-23 11:03:28,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:03:28,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438223727] [2020-12-23 11:03:28,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:03:28,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:03:28,698 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 11:03:28,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438223727] [2020-12-23 11:03:28,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:03:28,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 11:03:28,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129239232] [2020-12-23 11:03:28,699 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 11:03:28,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:03:28,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 11:03:28,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:03:28,700 INFO L87 Difference]: Start difference. First operand 1984 states and 2699 transitions. Second operand 5 states. [2020-12-23 11:03:30,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:03:30,750 INFO L93 Difference]: Finished difference Result 3952 states and 5403 transitions. [2020-12-23 11:03:30,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:03:30,751 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 77 [2020-12-23 11:03:30,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:03:30,761 INFO L225 Difference]: With dead ends: 3952 [2020-12-23 11:03:30,761 INFO L226 Difference]: Without dead ends: 3246 [2020-12-23 11:03:30,762 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:03:30,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3246 states. [2020-12-23 11:03:32,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3246 to 2476. [2020-12-23 11:03:32,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2476 states. [2020-12-23 11:03:32,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2476 states to 2476 states and 3371 transitions. [2020-12-23 11:03:32,221 INFO L78 Accepts]: Start accepts. Automaton has 2476 states and 3371 transitions. Word has length 77 [2020-12-23 11:03:32,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:03:32,221 INFO L481 AbstractCegarLoop]: Abstraction has 2476 states and 3371 transitions. [2020-12-23 11:03:32,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 11:03:32,222 INFO L276 IsEmpty]: Start isEmpty. Operand 2476 states and 3371 transitions. [2020-12-23 11:03:32,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-23 11:03:32,222 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:03:32,222 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:03:32,222 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-12-23 11:03:32,222 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:03:32,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:03:32,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1657778714, now seen corresponding path program 1 times [2020-12-23 11:03:32,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:03:32,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482583660] [2020-12-23 11:03:32,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:03:32,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:03:32,266 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 11:03:32,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482583660] [2020-12-23 11:03:32,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:03:32,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:03:32,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780265739] [2020-12-23 11:03:32,268 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:03:32,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:03:32,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:03:32,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:03:32,268 INFO L87 Difference]: Start difference. First operand 2476 states and 3371 transitions. Second operand 3 states. [2020-12-23 11:03:34,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:03:34,797 INFO L93 Difference]: Finished difference Result 6400 states and 8701 transitions. [2020-12-23 11:03:34,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:03:34,798 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2020-12-23 11:03:34,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:03:34,811 INFO L225 Difference]: With dead ends: 6400 [2020-12-23 11:03:34,812 INFO L226 Difference]: Without dead ends: 3982 [2020-12-23 11:03:34,814 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 11:03:34,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3982 states. [2020-12-23 11:03:36,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3982 to 3676. [2020-12-23 11:03:36,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3676 states. [2020-12-23 11:03:36,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3676 states to 3676 states and 4935 transitions. [2020-12-23 11:03:36,970 INFO L78 Accepts]: Start accepts. Automaton has 3676 states and 4935 transitions. Word has length 78 [2020-12-23 11:03:36,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:03:36,970 INFO L481 AbstractCegarLoop]: Abstraction has 3676 states and 4935 transitions. [2020-12-23 11:03:36,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:03:36,970 INFO L276 IsEmpty]: Start isEmpty. Operand 3676 states and 4935 transitions. [2020-12-23 11:03:36,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-12-23 11:03:36,972 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:03:36,972 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:03:36,972 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-12-23 11:03:36,972 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:03:36,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:03:36,973 INFO L82 PathProgramCache]: Analyzing trace with hash 910821393, now seen corresponding path program 1 times [2020-12-23 11:03:36,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:03:36,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568881311] [2020-12-23 11:03:36,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:03:36,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:03:37,026 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:03:37,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568881311] [2020-12-23 11:03:37,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:03:37,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:03:37,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70487976] [2020-12-23 11:03:37,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:03:37,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:03:37,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:03:37,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:03:37,028 INFO L87 Difference]: Start difference. First operand 3676 states and 4935 transitions. Second operand 3 states. [2020-12-23 11:03:39,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:03:39,211 INFO L93 Difference]: Finished difference Result 7239 states and 9730 transitions. [2020-12-23 11:03:39,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:03:39,211 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 99 [2020-12-23 11:03:39,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:03:39,227 INFO L225 Difference]: With dead ends: 7239 [2020-12-23 11:03:39,227 INFO L226 Difference]: Without dead ends: 3621 [2020-12-23 11:03:39,235 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 11:03:39,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3621 states. [2020-12-23 11:03:41,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3621 to 3619. [2020-12-23 11:03:41,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3619 states. [2020-12-23 11:03:41,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3619 states to 3619 states and 4777 transitions. [2020-12-23 11:03:41,348 INFO L78 Accepts]: Start accepts. Automaton has 3619 states and 4777 transitions. Word has length 99 [2020-12-23 11:03:41,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:03:41,348 INFO L481 AbstractCegarLoop]: Abstraction has 3619 states and 4777 transitions. [2020-12-23 11:03:41,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:03:41,348 INFO L276 IsEmpty]: Start isEmpty. Operand 3619 states and 4777 transitions. [2020-12-23 11:03:41,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-12-23 11:03:41,349 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:03:41,350 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:03:41,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-12-23 11:03:41,350 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:03:41,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:03:41,351 INFO L82 PathProgramCache]: Analyzing trace with hash 412335050, now seen corresponding path program 1 times [2020-12-23 11:03:41,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:03:41,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999123252] [2020-12-23 11:03:41,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:03:41,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:03:41,645 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:03:41,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999123252] [2020-12-23 11:03:41,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222853343] [2020-12-23 11:03:41,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 11:03:41,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:03:41,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-23 11:03:41,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 11:03:42,113 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 11:03:42,182 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 11:03:42,373 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 11:03:42,795 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:03:42,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 11:03:42,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2020-12-23 11:03:42,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162564357] [2020-12-23 11:03:42,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-23 11:03:42,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:03:42,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-23 11:03:42,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2020-12-23 11:03:42,798 INFO L87 Difference]: Start difference. First operand 3619 states and 4777 transitions. Second operand 18 states. [2020-12-23 11:03:45,538 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-12-23 11:03:46,224 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2020-12-23 11:03:46,782 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2020-12-23 11:03:48,031 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2020-12-23 11:03:48,520 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2020-12-23 11:03:49,809 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2020-12-23 11:03:50,811 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2020-12-23 11:03:50,965 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2020-12-23 11:03:51,493 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 39 [2020-12-23 11:03:51,669 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 39 [2020-12-23 11:03:51,882 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2020-12-23 11:03:52,050 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2020-12-23 11:03:52,809 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2020-12-23 11:03:53,106 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2020-12-23 11:03:53,301 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2020-12-23 11:03:53,486 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2020-12-23 11:03:53,666 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2020-12-23 11:03:53,959 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2020-12-23 11:03:55,515 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 41 [2020-12-23 11:03:55,867 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-12-23 11:03:56,036 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 48 [2020-12-23 11:03:56,244 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 59 [2020-12-23 11:03:56,398 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-12-23 11:03:56,592 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 59 [2020-12-23 11:03:56,745 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 48 [2020-12-23 11:03:56,918 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 49 [2020-12-23 11:03:57,576 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2020-12-23 11:03:57,817 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2020-12-23 11:03:58,088 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-12-23 11:03:58,505 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2020-12-23 11:03:59,551 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 55 [2020-12-23 11:03:59,699 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2020-12-23 11:03:59,876 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 52 [2020-12-23 11:04:00,727 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2020-12-23 11:04:01,482 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2020-12-23 11:04:01,954 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-12-23 11:04:04,300 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2020-12-23 11:04:06,402 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2020-12-23 11:04:10,663 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-12-23 11:04:11,239 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2020-12-23 11:04:12,461 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 54 [2020-12-23 11:04:12,677 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-12-23 11:04:12,852 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-12-23 11:04:17,728 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2020-12-23 11:04:18,763 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2020-12-23 11:04:19,811 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2020-12-23 11:04:19,972 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2020-12-23 11:04:20,167 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2020-12-23 11:04:20,519 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2020-12-23 11:04:21,764 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2020-12-23 11:04:21,928 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2020-12-23 11:04:22,076 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-12-23 11:04:22,437 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 54 [2020-12-23 11:04:23,736 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-12-23 11:04:23,912 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-12-23 11:04:30,736 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 39 [2020-12-23 11:04:31,039 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 56 [2020-12-23 11:04:31,822 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 42 [2020-12-23 11:04:32,004 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 38 [2020-12-23 11:04:32,565 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2020-12-23 11:04:32,963 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2020-12-23 11:04:33,258 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 50 [2020-12-23 11:04:34,399 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 46 [2020-12-23 11:04:35,034 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2020-12-23 11:04:35,382 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 39 [2020-12-23 11:04:35,649 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2020-12-23 11:05:03,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:05:03,136 INFO L93 Difference]: Finished difference Result 71832 states and 92926 transitions. [2020-12-23 11:05:03,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 234 states. [2020-12-23 11:05:03,136 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 99 [2020-12-23 11:05:03,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:05:03,317 INFO L225 Difference]: With dead ends: 71832 [2020-12-23 11:05:03,318 INFO L226 Difference]: Without dead ends: 68271 [2020-12-23 11:05:03,351 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 90 SyntacticMatches, 2 SemanticMatches, 246 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26462 ImplicationChecksByTransitivity, 27.9s TimeCoverageRelationStatistics Valid=7241, Invalid=54015, Unknown=0, NotChecked=0, Total=61256 [2020-12-23 11:05:03,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68271 states. [2020-12-23 11:05:16,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68271 to 18283. [2020-12-23 11:05:16,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18283 states. [2020-12-23 11:05:16,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18283 states to 18283 states and 23918 transitions. [2020-12-23 11:05:16,427 INFO L78 Accepts]: Start accepts. Automaton has 18283 states and 23918 transitions. Word has length 99 [2020-12-23 11:05:16,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:05:16,428 INFO L481 AbstractCegarLoop]: Abstraction has 18283 states and 23918 transitions. [2020-12-23 11:05:16,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-12-23 11:05:16,428 INFO L276 IsEmpty]: Start isEmpty. Operand 18283 states and 23918 transitions. [2020-12-23 11:05:16,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-12-23 11:05:16,432 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:05:16,433 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:05:16,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2020-12-23 11:05:16,646 INFO L429 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:05:16,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:05:16,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1279457798, now seen corresponding path program 1 times [2020-12-23 11:05:16,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:05:16,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677836017] [2020-12-23 11:05:16,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:05:16,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:05:17,349 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:05:17,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677836017] [2020-12-23 11:05:17,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882800290] [2020-12-23 11:05:17,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 11:05:17,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:05:17,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-23 11:05:17,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 11:05:17,719 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 11:05:17,813 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-23 11:05:18,048 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-23 11:05:18,442 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 29 [2020-12-23 11:05:18,918 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:05:18,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 11:05:18,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10] total 24 [2020-12-23 11:05:18,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189130214] [2020-12-23 11:05:18,919 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-12-23 11:05:18,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:05:18,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-12-23 11:05:18,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2020-12-23 11:05:18,921 INFO L87 Difference]: Start difference. First operand 18283 states and 23918 transitions. Second operand 24 states. [2020-12-23 11:05:19,190 WARN L197 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2020-12-23 11:05:19,814 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2020-12-23 11:05:20,143 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-12-23 11:05:20,386 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-12-23 11:05:20,632 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-12-23 11:05:20,893 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-12-23 11:05:21,130 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 39 [2020-12-23 11:05:21,395 WARN L197 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2020-12-23 11:05:21,693 WARN L197 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2020-12-23 11:05:21,902 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-12-23 11:05:22,516 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2020-12-23 11:05:22,830 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-12-23 11:05:23,050 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-12-23 11:05:23,794 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2020-12-23 11:05:24,257 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 60 [2020-12-23 11:05:24,481 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-12-23 11:05:24,719 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-12-23 11:05:24,989 WARN L197 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2020-12-23 11:05:25,235 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2020-12-23 11:05:26,298 WARN L197 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2020-12-23 11:05:26,567 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-12-23 11:05:27,013 WARN L197 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 87 [2020-12-23 11:05:27,259 WARN L197 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-12-23 11:05:27,703 WARN L197 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2020-12-23 11:05:28,095 WARN L197 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 69 [2020-12-23 11:05:28,475 WARN L197 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2020-12-23 11:05:28,776 WARN L197 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2020-12-23 11:05:28,970 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2020-12-23 11:05:29,260 WARN L197 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2020-12-23 11:05:29,468 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-12-23 11:05:30,531 WARN L197 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 84 [2020-12-23 11:05:30,883 WARN L197 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-12-23 11:05:31,137 WARN L197 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 60 [2020-12-23 11:05:31,538 WARN L197 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2020-12-23 11:05:31,766 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-12-23 11:05:31,962 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2020-12-23 11:05:32,160 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2020-12-23 11:05:32,420 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2020-12-23 11:05:32,929 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2020-12-23 11:05:33,167 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 46 [2020-12-23 11:05:33,742 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 47 [2020-12-23 11:05:33,963 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-12-23 11:05:34,383 WARN L197 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 71 [2020-12-23 11:05:34,775 WARN L197 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 78 [2020-12-23 11:05:35,161 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-12-23 11:05:35,506 WARN L197 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2020-12-23 11:05:35,919 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-12-23 11:05:36,258 WARN L197 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2020-12-23 11:05:36,972 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 40 [2020-12-23 11:05:37,276 WARN L197 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2020-12-23 11:05:37,686 WARN L197 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 64 [2020-12-23 11:05:38,169 WARN L197 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2020-12-23 11:05:38,618 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-12-23 11:05:38,845 WARN L197 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2020-12-23 11:05:39,264 WARN L197 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2020-12-23 11:05:39,929 WARN L197 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2020-12-23 11:05:40,515 WARN L197 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 87 [2020-12-23 11:05:40,839 WARN L197 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2020-12-23 11:05:41,080 WARN L197 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-12-23 11:05:41,551 WARN L197 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 81 [2020-12-23 11:05:41,966 WARN L197 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 78 [2020-12-23 11:05:42,325 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2020-12-23 11:05:42,881 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2020-12-23 11:05:43,077 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2020-12-23 11:05:43,645 WARN L197 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 60 [2020-12-23 11:05:44,171 WARN L197 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 84 [2020-12-23 11:05:44,391 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2020-12-23 11:05:44,805 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2020-12-23 11:05:45,071 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 40 [2020-12-23 11:05:45,387 WARN L197 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2020-12-23 11:05:45,754 WARN L197 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 60 [2020-12-23 11:05:46,166 WARN L197 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 64 [2020-12-23 11:05:46,630 WARN L197 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 83 [2020-12-23 11:05:47,186 WARN L197 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 87 [2020-12-23 11:05:47,459 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 47 [2020-12-23 11:05:47,872 WARN L197 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 67 [2020-12-23 11:05:48,311 WARN L197 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 71 [2020-12-23 11:05:48,835 WARN L197 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2020-12-23 11:05:49,243 WARN L197 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2020-12-23 11:05:49,623 WARN L197 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2020-12-23 11:05:50,022 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2020-12-23 11:05:50,555 WARN L197 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-12-23 11:05:51,104 WARN L197 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2020-12-23 11:05:51,533 WARN L197 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 78 [2020-12-23 11:05:52,013 WARN L197 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 80 [2020-12-23 11:05:52,432 WARN L197 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 58 [2020-12-23 11:05:52,639 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2020-12-23 11:05:53,033 WARN L197 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2020-12-23 11:05:53,297 WARN L197 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-12-23 11:05:53,510 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2020-12-23 11:05:53,792 WARN L197 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2020-12-23 11:05:54,186 WARN L197 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 58 [2020-12-23 11:05:54,678 WARN L197 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2020-12-23 11:05:55,212 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 44 [2020-12-23 11:05:55,685 WARN L197 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 67 [2020-12-23 11:05:56,242 WARN L197 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2020-12-23 11:05:56,835 WARN L197 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 80 [2020-12-23 11:05:57,375 WARN L197 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2020-12-23 11:05:57,674 WARN L197 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2020-12-23 11:05:58,271 WARN L197 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2020-12-23 11:05:58,484 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-12-23 11:05:58,922 WARN L197 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2020-12-23 11:05:59,409 WARN L197 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2020-12-23 11:05:59,787 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2020-12-23 11:06:00,237 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2020-12-23 11:06:00,547 WARN L197 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-12-23 11:06:00,962 WARN L197 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2020-12-23 11:06:01,418 WARN L197 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2020-12-23 11:06:02,061 WARN L197 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 64 [2020-12-23 11:06:02,778 WARN L197 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 87 [2020-12-23 11:06:03,164 WARN L197 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 58 [2020-12-23 11:06:04,074 WARN L197 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 80 [2020-12-23 11:06:05,252 WARN L197 SmtUtils]: Spent 874.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 103 [2020-12-23 11:06:05,771 WARN L197 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2020-12-23 11:06:06,185 WARN L197 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 64 [2020-12-23 11:06:06,728 WARN L197 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 71 [2020-12-23 11:06:07,659 WARN L197 SmtUtils]: Spent 736.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 87 [2020-12-23 11:06:07,946 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2020-12-23 11:06:08,308 WARN L197 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-12-23 11:06:08,607 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2020-12-23 11:06:09,386 WARN L197 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2020-12-23 11:06:09,961 WARN L197 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-12-23 11:06:10,872 WARN L197 SmtUtils]: Spent 650.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2020-12-23 11:06:11,314 WARN L197 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2020-12-23 11:06:12,315 WARN L197 SmtUtils]: Spent 792.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 84 [2020-12-23 11:06:13,070 WARN L197 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 59 [2020-12-23 11:06:13,401 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2020-12-23 11:06:13,942 WARN L197 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 78 [2020-12-23 11:06:15,078 WARN L197 SmtUtils]: Spent 805.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 75 [2020-12-23 11:06:16,270 WARN L197 SmtUtils]: Spent 865.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 85 [2020-12-23 11:06:16,837 WARN L197 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2020-12-23 11:06:18,074 WARN L197 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 103 DAG size of output: 94 [2020-12-23 11:06:18,787 WARN L197 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 84 [2020-12-23 11:06:19,138 WARN L197 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2020-12-23 11:06:20,380 WARN L197 SmtUtils]: Spent 998.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 100