/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 10:51:19,532 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 10:51:19,535 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 10:51:19,571 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 10:51:19,572 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 10:51:19,574 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 10:51:19,576 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 10:51:19,578 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 10:51:19,581 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 10:51:19,582 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 10:51:19,583 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 10:51:19,585 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 10:51:19,585 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 10:51:19,587 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 10:51:19,588 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 10:51:19,590 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 10:51:19,591 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 10:51:19,592 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 10:51:19,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 10:51:19,597 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 10:51:19,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 10:51:19,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 10:51:19,603 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 10:51:19,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 10:51:19,633 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 10:51:19,633 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 10:51:19,634 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 10:51:19,635 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 10:51:19,635 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 10:51:19,637 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 10:51:19,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 10:51:19,638 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 10:51:19,639 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 10:51:19,640 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 10:51:19,641 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 10:51:19,642 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 10:51:19,642 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 10:51:19,643 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 10:51:19,643 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 10:51:19,644 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 10:51:19,645 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 10:51:19,646 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 10:51:19,676 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 10:51:19,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 10:51:19,678 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 10:51:19,678 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 10:51:19,679 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 10:51:19,679 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 10:51:19,679 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 10:51:19,679 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 10:51:19,680 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 10:51:19,680 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 10:51:19,680 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 10:51:19,681 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 10:51:19,681 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 10:51:19,681 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 10:51:19,681 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 10:51:19,682 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 10:51:19,682 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 10:51:19,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 10:51:19,682 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 10:51:19,683 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 10:51:19,683 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 10:51:19,683 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 10:51:19,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 10:51:19,684 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 10:51:19,684 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 10:51:19,684 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 10:51:20,049 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 10:51:20,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 10:51:20,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 10:51:20,087 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 10:51:20,088 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 10:51:20,089 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2020-12-23 10:51:20,172 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/7904b68cd/894445f524fb419193f35e925c03bbe9/FLAG0d3d27e0f [2020-12-23 10:51:20,957 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 10:51:20,957 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2020-12-23 10:51:20,978 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/7904b68cd/894445f524fb419193f35e925c03bbe9/FLAG0d3d27e0f [2020-12-23 10:51:21,269 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/7904b68cd/894445f524fb419193f35e925c03bbe9 [2020-12-23 10:51:21,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 10:51:21,274 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 10:51:21,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 10:51:21,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 10:51:21,280 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 10:51:21,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 10:51:21" (1/1) ... [2020-12-23 10:51:21,282 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28cbbb9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:51:21, skipping insertion in model container [2020-12-23 10:51:21,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 10:51:21" (1/1) ... [2020-12-23 10:51:21,295 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 10:51:21,334 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_58584~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_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[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_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__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] 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__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_58749~0,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,] [2020-12-23 10:51:21,562 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[5954,5967] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] 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[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] 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[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] 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[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] [2020-12-23 10:51:21,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 10:51:21,662 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_58584~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_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[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_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__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] 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__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_58749~0,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,] [2020-12-23 10:51:21,784 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[5954,5967] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] 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[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] 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[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] 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[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] [2020-12-23 10:51:21,851 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 10:51:21,892 INFO L208 MainTranslator]: Completed translation [2020-12-23 10:51:21,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:51:21 WrapperNode [2020-12-23 10:51:21,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 10:51:21,895 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 10:51:21,897 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 10:51:21,897 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 10:51:21,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:51:21" (1/1) ... [2020-12-23 10:51:21,944 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:51:21" (1/1) ... [2020-12-23 10:51:22,013 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 10:51:22,014 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 10:51:22,015 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 10:51:22,015 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 10:51:22,029 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:51:21" (1/1) ... [2020-12-23 10:51:22,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:51:21" (1/1) ... [2020-12-23 10:51:22,045 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:51:21" (1/1) ... [2020-12-23 10:51:22,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:51:21" (1/1) ... [2020-12-23 10:51:22,072 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:51:21" (1/1) ... [2020-12-23 10:51:22,085 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:51:21" (1/1) ... [2020-12-23 10:51:22,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:51:21" (1/1) ... [2020-12-23 10:51:22,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 10:51:22,102 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 10:51:22,102 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 10:51:22,103 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 10:51:22,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:51:21" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 10:51:22,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 10:51:22,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 10:51:22,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 10:51:22,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 10:51:23,144 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 10:51:23,144 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-23 10:51:23,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 10:51:23 BoogieIcfgContainer [2020-12-23 10:51:23,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 10:51:23,149 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 10:51:23,149 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 10:51:23,152 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 10:51:23,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 10:51:21" (1/3) ... [2020-12-23 10:51:23,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f35b4eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 10:51:23, skipping insertion in model container [2020-12-23 10:51:23,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:51:21" (2/3) ... [2020-12-23 10:51:23,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f35b4eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 10:51:23, skipping insertion in model container [2020-12-23 10:51:23,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 10:51:23" (3/3) ... [2020-12-23 10:51:23,157 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2020-12-23 10:51:23,163 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 10:51:23,169 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 10:51:23,245 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 10:51:23,278 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 10:51:23,279 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 10:51:23,279 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 10:51:23,279 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 10:51:23,279 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 10:51:23,279 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 10:51:23,279 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 10:51:23,279 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 10:51:23,298 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states. [2020-12-23 10:51:23,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-12-23 10:51:23,309 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:51:23,310 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] [2020-12-23 10:51:23,310 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:51:23,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:51:23,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1025697732, now seen corresponding path program 1 times [2020-12-23 10:51:23,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:51:23,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472246134] [2020-12-23 10:51:23,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:51:23,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:51:23,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:51:23,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472246134] [2020-12-23 10:51:23,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:51:23,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:51:23,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038054391] [2020-12-23 10:51:23,791 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:51:23,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:51:23,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:51:23,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:51:23,808 INFO L87 Difference]: Start difference. First operand 138 states. Second operand 3 states. [2020-12-23 10:51:23,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:51:23,900 INFO L93 Difference]: Finished difference Result 328 states and 528 transitions. [2020-12-23 10:51:23,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:51:23,903 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-12-23 10:51:23,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:51:23,918 INFO L225 Difference]: With dead ends: 328 [2020-12-23 10:51:23,918 INFO L226 Difference]: Without dead ends: 219 [2020-12-23 10:51:23,922 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:51:23,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2020-12-23 10:51:23,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 217. [2020-12-23 10:51:23,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-12-23 10:51:23,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 325 transitions. [2020-12-23 10:51:23,991 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 325 transitions. Word has length 61 [2020-12-23 10:51:23,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:51:23,991 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 325 transitions. [2020-12-23 10:51:23,992 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:51:23,992 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 325 transitions. [2020-12-23 10:51:23,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-12-23 10:51:23,995 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:51:23,995 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] [2020-12-23 10:51:23,995 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 10:51:23,996 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:51:23,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:51:23,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1571099909, now seen corresponding path program 1 times [2020-12-23 10:51:23,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:51:23,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407310673] [2020-12-23 10:51:23,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:51:24,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:51:24,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:51:24,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407310673] [2020-12-23 10:51:24,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:51:24,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:51:24,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170911209] [2020-12-23 10:51:24,126 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:51:24,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:51:24,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:51:24,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:51:24,128 INFO L87 Difference]: Start difference. First operand 217 states and 325 transitions. Second operand 3 states. [2020-12-23 10:51:24,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:51:24,235 INFO L93 Difference]: Finished difference Result 549 states and 853 transitions. [2020-12-23 10:51:24,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:51:24,238 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2020-12-23 10:51:24,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:51:24,248 INFO L225 Difference]: With dead ends: 549 [2020-12-23 10:51:24,248 INFO L226 Difference]: Without dead ends: 367 [2020-12-23 10:51:24,251 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:51:24,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2020-12-23 10:51:24,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 365. [2020-12-23 10:51:24,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-12-23 10:51:24,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 560 transitions. [2020-12-23 10:51:24,296 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 560 transitions. Word has length 62 [2020-12-23 10:51:24,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:51:24,297 INFO L481 AbstractCegarLoop]: Abstraction has 365 states and 560 transitions. [2020-12-23 10:51:24,297 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:51:24,297 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 560 transitions. [2020-12-23 10:51:24,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-23 10:51:24,299 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:51:24,300 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:51:24,300 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 10:51:24,300 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:51:24,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:51:24,301 INFO L82 PathProgramCache]: Analyzing trace with hash 195770199, now seen corresponding path program 1 times [2020-12-23 10:51:24,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:51:24,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767034779] [2020-12-23 10:51:24,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:51:24,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:51:24,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:51:24,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767034779] [2020-12-23 10:51:24,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:51:24,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:51:24,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988388797] [2020-12-23 10:51:24,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:51:24,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:51:24,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:51:24,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:51:24,441 INFO L87 Difference]: Start difference. First operand 365 states and 560 transitions. Second operand 3 states. [2020-12-23 10:51:24,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:51:24,524 INFO L93 Difference]: Finished difference Result 961 states and 1506 transitions. [2020-12-23 10:51:24,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:51:24,531 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2020-12-23 10:51:24,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:51:24,536 INFO L225 Difference]: With dead ends: 961 [2020-12-23 10:51:24,538 INFO L226 Difference]: Without dead ends: 631 [2020-12-23 10:51:24,543 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:51:24,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2020-12-23 10:51:24,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 629. [2020-12-23 10:51:24,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 629 states. [2020-12-23 10:51:24,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 976 transitions. [2020-12-23 10:51:24,643 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 976 transitions. Word has length 63 [2020-12-23 10:51:24,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:51:24,644 INFO L481 AbstractCegarLoop]: Abstraction has 629 states and 976 transitions. [2020-12-23 10:51:24,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:51:24,644 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 976 transitions. [2020-12-23 10:51:24,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-23 10:51:24,647 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:51:24,647 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:51:24,647 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 10:51:24,647 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:51:24,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:51:24,648 INFO L82 PathProgramCache]: Analyzing trace with hash 92320152, now seen corresponding path program 1 times [2020-12-23 10:51:24,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:51:24,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20895877] [2020-12-23 10:51:24,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:51:24,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:51:24,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:51:24,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20895877] [2020-12-23 10:51:24,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:51:24,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:51:24,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952744330] [2020-12-23 10:51:24,841 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:51:24,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:51:24,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:51:24,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:51:24,848 INFO L87 Difference]: Start difference. First operand 629 states and 976 transitions. Second operand 3 states. [2020-12-23 10:51:24,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:51:24,954 INFO L93 Difference]: Finished difference Result 1689 states and 2650 transitions. [2020-12-23 10:51:24,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:51:24,955 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2020-12-23 10:51:24,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:51:24,962 INFO L225 Difference]: With dead ends: 1689 [2020-12-23 10:51:24,963 INFO L226 Difference]: Without dead ends: 1095 [2020-12-23 10:51:24,965 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:51:24,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2020-12-23 10:51:25,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 1093. [2020-12-23 10:51:25,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1093 states. [2020-12-23 10:51:25,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1093 states to 1093 states and 1700 transitions. [2020-12-23 10:51:25,050 INFO L78 Accepts]: Start accepts. Automaton has 1093 states and 1700 transitions. Word has length 64 [2020-12-23 10:51:25,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:51:25,051 INFO L481 AbstractCegarLoop]: Abstraction has 1093 states and 1700 transitions. [2020-12-23 10:51:25,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:51:25,051 INFO L276 IsEmpty]: Start isEmpty. Operand 1093 states and 1700 transitions. [2020-12-23 10:51:25,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-12-23 10:51:25,054 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:51:25,054 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:51:25,055 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 10:51:25,055 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:51:25,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:51:25,056 INFO L82 PathProgramCache]: Analyzing trace with hash -1673406722, now seen corresponding path program 1 times [2020-12-23 10:51:25,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:51:25,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092162686] [2020-12-23 10:51:25,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:51:25,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:51:25,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:51:25,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092162686] [2020-12-23 10:51:25,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:51:25,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 10:51:25,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423322876] [2020-12-23 10:51:25,292 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 10:51:25,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:51:25,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 10:51:25,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-23 10:51:25,295 INFO L87 Difference]: Start difference. First operand 1093 states and 1700 transitions. Second operand 7 states. [2020-12-23 10:51:25,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:51:25,888 INFO L93 Difference]: Finished difference Result 5663 states and 8841 transitions. [2020-12-23 10:51:25,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 10:51:25,890 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-12-23 10:51:25,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:51:25,917 INFO L225 Difference]: With dead ends: 5663 [2020-12-23 10:51:25,917 INFO L226 Difference]: Without dead ends: 4605 [2020-12-23 10:51:25,921 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-23 10:51:25,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4605 states. [2020-12-23 10:51:26,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4605 to 4597. [2020-12-23 10:51:26,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4597 states. [2020-12-23 10:51:26,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4597 states to 4597 states and 7156 transitions. [2020-12-23 10:51:26,319 INFO L78 Accepts]: Start accepts. Automaton has 4597 states and 7156 transitions. Word has length 65 [2020-12-23 10:51:26,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:51:26,322 INFO L481 AbstractCegarLoop]: Abstraction has 4597 states and 7156 transitions. [2020-12-23 10:51:26,322 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 10:51:26,323 INFO L276 IsEmpty]: Start isEmpty. Operand 4597 states and 7156 transitions. [2020-12-23 10:51:26,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-23 10:51:26,330 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:51:26,331 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] [2020-12-23 10:51:26,331 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 10:51:26,331 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:51:26,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:51:26,332 INFO L82 PathProgramCache]: Analyzing trace with hash 222361335, now seen corresponding path program 1 times [2020-12-23 10:51:26,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:51:26,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101749227] [2020-12-23 10:51:26,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:51:26,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:51:26,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:51:26,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101749227] [2020-12-23 10:51:26,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:51:26,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:51:26,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13431768] [2020-12-23 10:51:26,432 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:51:26,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:51:26,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:51:26,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:51:26,434 INFO L87 Difference]: Start difference. First operand 4597 states and 7156 transitions. Second operand 3 states. [2020-12-23 10:51:26,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:51:26,984 INFO L93 Difference]: Finished difference Result 12361 states and 19206 transitions. [2020-12-23 10:51:26,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:51:26,985 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2020-12-23 10:51:26,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:51:27,026 INFO L225 Difference]: With dead ends: 12361 [2020-12-23 10:51:27,027 INFO L226 Difference]: Without dead ends: 7799 [2020-12-23 10:51:27,036 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:51:27,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7799 states. [2020-12-23 10:51:27,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7799 to 7797. [2020-12-23 10:51:27,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7797 states. [2020-12-23 10:51:27,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7797 states to 7797 states and 12004 transitions. [2020-12-23 10:51:27,667 INFO L78 Accepts]: Start accepts. Automaton has 7797 states and 12004 transitions. Word has length 66 [2020-12-23 10:51:27,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:51:27,667 INFO L481 AbstractCegarLoop]: Abstraction has 7797 states and 12004 transitions. [2020-12-23 10:51:27,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:51:27,668 INFO L276 IsEmpty]: Start isEmpty. Operand 7797 states and 12004 transitions. [2020-12-23 10:51:27,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-23 10:51:27,669 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:51:27,669 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:51:27,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 10:51:27,670 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:51:27,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:51:27,671 INFO L82 PathProgramCache]: Analyzing trace with hash 376052341, now seen corresponding path program 1 times [2020-12-23 10:51:27,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:51:27,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145305841] [2020-12-23 10:51:27,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:51:27,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:51:27,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:51:27,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145305841] [2020-12-23 10:51:27,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:51:27,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:51:27,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757507849] [2020-12-23 10:51:27,843 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 10:51:27,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:51:27,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 10:51:27,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:51:27,845 INFO L87 Difference]: Start difference. First operand 7797 states and 12004 transitions. Second operand 6 states. [2020-12-23 10:51:29,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:51:29,980 INFO L93 Difference]: Finished difference Result 29259 states and 45031 transitions. [2020-12-23 10:51:29,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:51:29,981 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2020-12-23 10:51:29,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:51:30,081 INFO L225 Difference]: With dead ends: 29259 [2020-12-23 10:51:30,082 INFO L226 Difference]: Without dead ends: 21497 [2020-12-23 10:51:30,098 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-23 10:51:30,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21497 states. [2020-12-23 10:51:32,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21497 to 21493. [2020-12-23 10:51:32,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21493 states. [2020-12-23 10:51:32,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21493 states to 21493 states and 32916 transitions. [2020-12-23 10:51:32,091 INFO L78 Accepts]: Start accepts. Automaton has 21493 states and 32916 transitions. Word has length 67 [2020-12-23 10:51:32,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:51:32,091 INFO L481 AbstractCegarLoop]: Abstraction has 21493 states and 32916 transitions. [2020-12-23 10:51:32,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 10:51:32,092 INFO L276 IsEmpty]: Start isEmpty. Operand 21493 states and 32916 transitions. [2020-12-23 10:51:32,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-23 10:51:32,093 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:51:32,094 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:51:32,094 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 10:51:32,094 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:51:32,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:51:32,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1993557232, now seen corresponding path program 1 times [2020-12-23 10:51:32,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:51:32,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518251611] [2020-12-23 10:51:32,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:51:32,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:51:32,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:51:32,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518251611] [2020-12-23 10:51:32,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:51:32,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 10:51:32,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090609455] [2020-12-23 10:51:32,246 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 10:51:32,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:51:32,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 10:51:32,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-23 10:51:32,248 INFO L87 Difference]: Start difference. First operand 21493 states and 32916 transitions. Second operand 7 states. [2020-12-23 10:51:37,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:51:37,403 INFO L93 Difference]: Finished difference Result 112737 states and 172858 transitions. [2020-12-23 10:51:37,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 10:51:37,404 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 67 [2020-12-23 10:51:37,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:51:37,694 INFO L225 Difference]: With dead ends: 112737 [2020-12-23 10:51:37,695 INFO L226 Difference]: Without dead ends: 91279 [2020-12-23 10:51:37,773 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-12-23 10:51:37,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91279 states. [2020-12-23 10:51:41,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91279 to 42949. [2020-12-23 10:51:41,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42949 states. [2020-12-23 10:51:41,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42949 states to 42949 states and 64900 transitions. [2020-12-23 10:51:41,690 INFO L78 Accepts]: Start accepts. Automaton has 42949 states and 64900 transitions. Word has length 67 [2020-12-23 10:51:41,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:51:41,690 INFO L481 AbstractCegarLoop]: Abstraction has 42949 states and 64900 transitions. [2020-12-23 10:51:41,690 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 10:51:41,690 INFO L276 IsEmpty]: Start isEmpty. Operand 42949 states and 64900 transitions. [2020-12-23 10:51:41,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-23 10:51:41,692 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:51:41,692 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:51:41,692 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 10:51:41,693 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:51:41,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:51:41,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1651275811, now seen corresponding path program 1 times [2020-12-23 10:51:41,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:51:41,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143450986] [2020-12-23 10:51:41,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:51:41,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:51:41,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:51:41,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143450986] [2020-12-23 10:51:41,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:51:41,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:51:41,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571724266] [2020-12-23 10:51:41,811 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 10:51:41,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:51:41,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 10:51:41,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:51:41,812 INFO L87 Difference]: Start difference. First operand 42949 states and 64900 transitions. Second operand 5 states. [2020-12-23 10:51:47,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:51:47,098 INFO L93 Difference]: Finished difference Result 87655 states and 131557 transitions. [2020-12-23 10:51:47,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 10:51:47,098 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 68 [2020-12-23 10:51:47,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:51:47,353 INFO L225 Difference]: With dead ends: 87655 [2020-12-23 10:51:47,353 INFO L226 Difference]: Without dead ends: 87653 [2020-12-23 10:51:47,382 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:51:47,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87653 states. [2020-12-23 10:51:51,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87653 to 44741. [2020-12-23 10:51:51,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44741 states. [2020-12-23 10:51:51,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44741 states to 44741 states and 66692 transitions. [2020-12-23 10:51:51,113 INFO L78 Accepts]: Start accepts. Automaton has 44741 states and 66692 transitions. Word has length 68 [2020-12-23 10:51:51,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:51:51,114 INFO L481 AbstractCegarLoop]: Abstraction has 44741 states and 66692 transitions. [2020-12-23 10:51:51,114 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 10:51:51,114 INFO L276 IsEmpty]: Start isEmpty. Operand 44741 states and 66692 transitions. [2020-12-23 10:51:51,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-23 10:51:51,115 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:51:51,115 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:51:51,115 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 10:51:51,116 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:51:51,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:51:51,116 INFO L82 PathProgramCache]: Analyzing trace with hash -339484320, now seen corresponding path program 1 times [2020-12-23 10:51:51,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:51:51,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129682755] [2020-12-23 10:51:51,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:51:51,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:51:51,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:51:51,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129682755] [2020-12-23 10:51:51,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:51:51,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:51:51,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898221595] [2020-12-23 10:51:51,187 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:51:51,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:51:51,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:51:51,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:51:51,188 INFO L87 Difference]: Start difference. First operand 44741 states and 66692 transitions. Second operand 3 states. [2020-12-23 10:51:54,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:51:54,712 INFO L93 Difference]: Finished difference Result 97051 states and 144488 transitions. [2020-12-23 10:51:54,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:51:54,713 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-12-23 10:51:54,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:51:54,824 INFO L225 Difference]: With dead ends: 97051 [2020-12-23 10:51:54,824 INFO L226 Difference]: Without dead ends: 52345 [2020-12-23 10:51:54,883 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:51:54,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52345 states. [2020-12-23 10:51:58,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52345 to 52199. [2020-12-23 10:51:58,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52199 states. [2020-12-23 10:51:58,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52199 states to 52199 states and 77398 transitions. [2020-12-23 10:51:58,877 INFO L78 Accepts]: Start accepts. Automaton has 52199 states and 77398 transitions. Word has length 69 [2020-12-23 10:51:58,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:51:58,877 INFO L481 AbstractCegarLoop]: Abstraction has 52199 states and 77398 transitions. [2020-12-23 10:51:58,877 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:51:58,878 INFO L276 IsEmpty]: Start isEmpty. Operand 52199 states and 77398 transitions. [2020-12-23 10:51:58,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-23 10:51:58,907 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:51:58,907 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2020-12-23 10:51:58,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 10:51:58,908 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:51:58,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:51:58,908 INFO L82 PathProgramCache]: Analyzing trace with hash -1573259719, now seen corresponding path program 1 times [2020-12-23 10:51:58,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:51:58,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53755611] [2020-12-23 10:51:58,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:51:58,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:51:58,995 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 10:51:58,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53755611] [2020-12-23 10:51:58,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:51:58,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:51:58,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877717020] [2020-12-23 10:51:58,997 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:51:58,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:51:58,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:51:58,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:51:58,999 INFO L87 Difference]: Start difference. First operand 52199 states and 77398 transitions. Second operand 3 states. [2020-12-23 10:52:04,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:52:04,890 INFO L93 Difference]: Finished difference Result 139372 states and 206874 transitions. [2020-12-23 10:52:04,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:52:04,891 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 96 [2020-12-23 10:52:04,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:52:05,006 INFO L225 Difference]: With dead ends: 139372 [2020-12-23 10:52:05,006 INFO L226 Difference]: Without dead ends: 93546 [2020-12-23 10:52:05,043 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:52:05,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93546 states. [2020-12-23 10:52:10,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93546 to 80872. [2020-12-23 10:52:10,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80872 states. [2020-12-23 10:52:11,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80872 states to 80872 states and 119016 transitions. [2020-12-23 10:52:11,110 INFO L78 Accepts]: Start accepts. Automaton has 80872 states and 119016 transitions. Word has length 96 [2020-12-23 10:52:11,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:52:11,110 INFO L481 AbstractCegarLoop]: Abstraction has 80872 states and 119016 transitions. [2020-12-23 10:52:11,110 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:52:11,110 INFO L276 IsEmpty]: Start isEmpty. Operand 80872 states and 119016 transitions. [2020-12-23 10:52:11,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-23 10:52:11,141 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:52:11,141 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2020-12-23 10:52:11,141 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-23 10:52:11,141 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:52:11,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:52:11,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1725865046, now seen corresponding path program 1 times [2020-12-23 10:52:11,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:52:11,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746773089] [2020-12-23 10:52:11,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:52:11,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:52:11,648 WARN L197 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 18 [2020-12-23 10:52:11,736 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:52:11,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746773089] [2020-12-23 10:52:11,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169130346] [2020-12-23 10:52:11,737 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 10:52:12,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:52:12,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-23 10:52:12,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 10:52:12,475 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 10:52:12,475 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 10:52:12,475 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4] total 12 [2020-12-23 10:52:12,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089512457] [2020-12-23 10:52:12,477 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-23 10:52:12,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:52:12,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-23 10:52:12,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-12-23 10:52:12,478 INFO L87 Difference]: Start difference. First operand 80872 states and 119016 transitions. Second operand 12 states. [2020-12-23 10:52:14,360 WARN L197 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2020-12-23 10:52:24,367 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2020-12-23 10:52:38,002 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2020-12-23 10:52:38,694 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2020-12-23 10:53:01,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:53:01,343 INFO L93 Difference]: Finished difference Result 501260 states and 729580 transitions. [2020-12-23 10:53:01,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2020-12-23 10:53:01,344 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 96 [2020-12-23 10:53:01,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:53:02,365 INFO L225 Difference]: With dead ends: 501260 [2020-12-23 10:53:02,365 INFO L226 Difference]: Without dead ends: 426698 [2020-12-23 10:53:02,830 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3475 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=1677, Invalid=7065, Unknown=0, NotChecked=0, Total=8742 [2020-12-23 10:53:03,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426698 states. [2020-12-23 10:53:23,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426698 to 195408. [2020-12-23 10:53:23,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195408 states. [2020-12-23 10:53:24,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195408 states to 195408 states and 284004 transitions. [2020-12-23 10:53:24,289 INFO L78 Accepts]: Start accepts. Automaton has 195408 states and 284004 transitions. Word has length 96 [2020-12-23 10:53:24,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:53:24,293 INFO L481 AbstractCegarLoop]: Abstraction has 195408 states and 284004 transitions. [2020-12-23 10:53:24,293 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-23 10:53:24,294 INFO L276 IsEmpty]: Start isEmpty. Operand 195408 states and 284004 transitions. [2020-12-23 10:53:24,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-23 10:53:24,343 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:53:24,343 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-23 10:53:24,558 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-12-23 10:53:24,559 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:53:24,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:53:24,561 INFO L82 PathProgramCache]: Analyzing trace with hash -2035229118, now seen corresponding path program 1 times [2020-12-23 10:53:24,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:53:24,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56541385] [2020-12-23 10:53:24,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:53:24,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:53:24,668 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-23 10:53:24,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56541385] [2020-12-23 10:53:24,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:53:24,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:53:24,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980427423] [2020-12-23 10:53:24,671 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 10:53:24,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:53:24,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 10:53:24,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:53:24,672 INFO L87 Difference]: Start difference. First operand 195408 states and 284004 transitions. Second operand 6 states. [2020-12-23 10:54:15,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:54:15,435 INFO L93 Difference]: Finished difference Result 749062 states and 1085467 transitions. [2020-12-23 10:54:15,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:54:15,436 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 96 [2020-12-23 10:54:15,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:54:16,610 INFO L225 Difference]: With dead ends: 749062 [2020-12-23 10:54:16,610 INFO L226 Difference]: Without dead ends: 553692 [2020-12-23 10:54:16,928 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-23 10:54:17,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553692 states.