/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.BOUNDED-10.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 20:43:07,209 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 20:43:07,217 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 20:43:07,265 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 20:43:07,266 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 20:43:07,267 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 20:43:07,269 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 20:43:07,272 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 20:43:07,274 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 20:43:07,275 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 20:43:07,276 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 20:43:07,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 20:43:07,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 20:43:07,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 20:43:07,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 20:43:07,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 20:43:07,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 20:43:07,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 20:43:07,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 20:43:07,316 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 20:43:07,319 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 20:43:07,322 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 20:43:07,324 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 20:43:07,327 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 20:43:07,338 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 20:43:07,339 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 20:43:07,339 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 20:43:07,342 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 20:43:07,348 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 20:43:07,350 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 20:43:07,351 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 20:43:07,352 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 20:43:07,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 20:43:07,354 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 20:43:07,355 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 20:43:07,356 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 20:43:07,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 20:43:07,356 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 20:43:07,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 20:43:07,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 20:43:07,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 20:43:07,360 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 20:43:07,407 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 20:43:07,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 20:43:07,409 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 20:43:07,410 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 20:43:07,410 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 20:43:07,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 20:43:07,410 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 20:43:07,410 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 20:43:07,411 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 20:43:07,411 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 20:43:07,411 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 20:43:07,411 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 20:43:07,411 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 20:43:07,412 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 20:43:07,412 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 20:43:07,412 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 20:43:07,412 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 20:43:07,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 20:43:07,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 20:43:07,413 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 20:43:07,413 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 20:43:07,413 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 20:43:07,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 20:43:07,414 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 20:43:07,414 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 20:43:07,414 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 20:43:07,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 20:43:07,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 20:43:07,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 20:43:07,814 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 20:43:07,815 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 20:43:07,816 INFO L432 ainManager$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.BOUNDED-10.pals.c.v+cfa-reducer.c [2021-01-06 20:43:07,904 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/5075e2b28/91ef1e1b1c134707a20784d1751609e6/FLAGefe6a8ddb [2021-01-06 20:43:08,649 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 20:43:08,654 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c [2021-01-06 20:43:08,678 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/5075e2b28/91ef1e1b1c134707a20784d1751609e6/FLAGefe6a8ddb [2021-01-06 20:43:08,992 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/5075e2b28/91ef1e1b1c134707a20784d1751609e6 [2021-01-06 20:43:09,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 20:43:09,006 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 20:43:09,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 20:43:09,010 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 20:43:09,014 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 20:43:09,015 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 08:43:08" (1/1) ... [2021-01-06 20:43:09,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ba2d056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:43:09, skipping insertion in model container [2021-01-06 20:43:09,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 08:43:08" (1/1) ... [2021-01-06 20:43:09,026 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 20:43:09,092 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_59448~0,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[~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_59613~0,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,] [2021-01-06 20:43:09,333 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.BOUNDED-10.pals.c.v+cfa-reducer.c[5918,5931] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] 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[~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,] left hand side expression in assignment: lhs: VariableLHS[~__return_59716~0,GLOBAL] [2021-01-06 20:43:09,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 20:43:09,444 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_59448~0,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[~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_59613~0,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,] [2021-01-06 20:43:09,508 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.BOUNDED-10.pals.c.v+cfa-reducer.c[5918,5931] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] 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[~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,] left hand side expression in assignment: lhs: VariableLHS[~__return_59716~0,GLOBAL] [2021-01-06 20:43:09,569 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 20:43:09,607 INFO L208 MainTranslator]: Completed translation [2021-01-06 20:43:09,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:43:09 WrapperNode [2021-01-06 20:43:09,608 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 20:43:09,609 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 20:43:09,609 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 20:43:09,610 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 20:43:09,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:43:09" (1/1) ... [2021-01-06 20:43:09,636 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:43:09" (1/1) ... [2021-01-06 20:43:09,704 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 20:43:09,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 20:43:09,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 20:43:09,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 20:43:09,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:43:09" (1/1) ... [2021-01-06 20:43:09,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:43:09" (1/1) ... [2021-01-06 20:43:09,734 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:43:09" (1/1) ... [2021-01-06 20:43:09,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:43:09" (1/1) ... [2021-01-06 20:43:09,755 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:43:09" (1/1) ... [2021-01-06 20:43:09,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:43:09" (1/1) ... [2021-01-06 20:43:09,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:43:09" (1/1) ... [2021-01-06 20:43:09,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 20:43:09,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 20:43:09,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 20:43:09,787 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 20:43:09,788 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:43:09" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 20:43:09,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 20:43:09,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 20:43:09,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 20:43:09,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 20:43:10,894 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 20:43:10,895 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-01-06 20:43:10,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 08:43:10 BoogieIcfgContainer [2021-01-06 20:43:10,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 20:43:10,901 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 20:43:10,902 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 20:43:10,906 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 20:43:10,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 08:43:08" (1/3) ... [2021-01-06 20:43:10,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e622c8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 08:43:10, skipping insertion in model container [2021-01-06 20:43:10,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:43:09" (2/3) ... [2021-01-06 20:43:10,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e622c8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 08:43:10, skipping insertion in model container [2021-01-06 20:43:10,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 08:43:10" (3/3) ... [2021-01-06 20:43:10,913 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c [2021-01-06 20:43:10,923 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 20:43:10,931 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 20:43:10,954 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-01-06 20:43:10,991 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 20:43:10,991 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 20:43:10,991 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 20:43:10,992 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 20:43:10,992 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 20:43:10,992 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 20:43:10,992 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 20:43:10,992 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 20:43:11,012 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states. [2021-01-06 20:43:11,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-01-06 20:43:11,022 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:43:11,023 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] [2021-01-06 20:43:11,024 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:43:11,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:43:11,031 INFO L82 PathProgramCache]: Analyzing trace with hash -793823884, now seen corresponding path program 1 times [2021-01-06 20:43:11,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:43:11,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317297531] [2021-01-06 20:43:11,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:43:11,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:43:11,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:43:11,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317297531] [2021-01-06 20:43:11,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:43:11,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:43:11,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380425644] [2021-01-06 20:43:11,456 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:43:11,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:43:11,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:43:11,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:43:11,474 INFO L87 Difference]: Start difference. First operand 136 states. Second operand 3 states. [2021-01-06 20:43:11,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:43:11,585 INFO L93 Difference]: Finished difference Result 322 states and 522 transitions. [2021-01-06 20:43:11,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:43:11,593 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2021-01-06 20:43:11,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:43:11,608 INFO L225 Difference]: With dead ends: 322 [2021-01-06 20:43:11,608 INFO L226 Difference]: Without dead ends: 215 [2021-01-06 20:43:11,613 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:43:11,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-01-06 20:43:11,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 213. [2021-01-06 20:43:11,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2021-01-06 20:43:11,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 319 transitions. [2021-01-06 20:43:11,706 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 319 transitions. Word has length 60 [2021-01-06 20:43:11,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:43:11,707 INFO L481 AbstractCegarLoop]: Abstraction has 213 states and 319 transitions. [2021-01-06 20:43:11,707 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:43:11,707 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 319 transitions. [2021-01-06 20:43:11,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-01-06 20:43:11,710 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:43:11,710 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:43:11,711 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 20:43:11,711 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:43:11,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:43:11,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1200786689, now seen corresponding path program 1 times [2021-01-06 20:43:11,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:43:11,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024784103] [2021-01-06 20:43:11,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:43:11,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:43:11,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:43:11,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024784103] [2021-01-06 20:43:11,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:43:11,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:43:11,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490172591] [2021-01-06 20:43:11,945 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:43:11,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:43:11,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:43:11,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:43:11,948 INFO L87 Difference]: Start difference. First operand 213 states and 319 transitions. Second operand 3 states. [2021-01-06 20:43:12,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:43:12,066 INFO L93 Difference]: Finished difference Result 537 states and 835 transitions. [2021-01-06 20:43:12,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:43:12,067 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2021-01-06 20:43:12,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:43:12,073 INFO L225 Difference]: With dead ends: 537 [2021-01-06 20:43:12,073 INFO L226 Difference]: Without dead ends: 359 [2021-01-06 20:43:12,076 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:43:12,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2021-01-06 20:43:12,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 357. [2021-01-06 20:43:12,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 357 states. [2021-01-06 20:43:12,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 548 transitions. [2021-01-06 20:43:12,162 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 548 transitions. Word has length 61 [2021-01-06 20:43:12,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:43:12,163 INFO L481 AbstractCegarLoop]: Abstraction has 357 states and 548 transitions. [2021-01-06 20:43:12,163 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:43:12,163 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 548 transitions. [2021-01-06 20:43:12,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-01-06 20:43:12,169 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:43:12,170 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:43:12,170 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 20:43:12,170 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:43:12,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:43:12,173 INFO L82 PathProgramCache]: Analyzing trace with hash -1872640227, now seen corresponding path program 1 times [2021-01-06 20:43:12,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:43:12,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925237501] [2021-01-06 20:43:12,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:43:12,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:43:12,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:43:12,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925237501] [2021-01-06 20:43:12,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:43:12,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:43:12,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236187943] [2021-01-06 20:43:12,357 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:43:12,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:43:12,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:43:12,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:43:12,361 INFO L87 Difference]: Start difference. First operand 357 states and 548 transitions. Second operand 3 states. [2021-01-06 20:43:12,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:43:12,441 INFO L93 Difference]: Finished difference Result 937 states and 1470 transitions. [2021-01-06 20:43:12,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:43:12,442 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2021-01-06 20:43:12,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:43:12,447 INFO L225 Difference]: With dead ends: 937 [2021-01-06 20:43:12,447 INFO L226 Difference]: Without dead ends: 615 [2021-01-06 20:43:12,452 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:43:12,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2021-01-06 20:43:12,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 613. [2021-01-06 20:43:12,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2021-01-06 20:43:12,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 952 transitions. [2021-01-06 20:43:12,517 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 952 transitions. Word has length 62 [2021-01-06 20:43:12,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:43:12,530 INFO L481 AbstractCegarLoop]: Abstraction has 613 states and 952 transitions. [2021-01-06 20:43:12,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:43:12,531 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 952 transitions. [2021-01-06 20:43:12,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-01-06 20:43:12,534 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:43:12,534 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:43:12,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 20:43:12,535 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:43:12,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:43:12,539 INFO L82 PathProgramCache]: Analyzing trace with hash -562045070, now seen corresponding path program 1 times [2021-01-06 20:43:12,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:43:12,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895525086] [2021-01-06 20:43:12,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:43:12,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:43:12,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:43:12,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895525086] [2021-01-06 20:43:12,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:43:12,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:43:12,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550070758] [2021-01-06 20:43:12,664 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:43:12,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:43:12,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:43:12,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:43:12,667 INFO L87 Difference]: Start difference. First operand 613 states and 952 transitions. Second operand 3 states. [2021-01-06 20:43:12,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:43:12,739 INFO L93 Difference]: Finished difference Result 1641 states and 2578 transitions. [2021-01-06 20:43:12,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:43:12,739 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2021-01-06 20:43:12,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:43:12,747 INFO L225 Difference]: With dead ends: 1641 [2021-01-06 20:43:12,748 INFO L226 Difference]: Without dead ends: 1063 [2021-01-06 20:43:12,750 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:43:12,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2021-01-06 20:43:12,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 1061. [2021-01-06 20:43:12,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1061 states. [2021-01-06 20:43:12,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1652 transitions. [2021-01-06 20:43:12,836 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1652 transitions. Word has length 63 [2021-01-06 20:43:12,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:43:12,836 INFO L481 AbstractCegarLoop]: Abstraction has 1061 states and 1652 transitions. [2021-01-06 20:43:12,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:43:12,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1652 transitions. [2021-01-06 20:43:12,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-01-06 20:43:12,842 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:43:12,842 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:43:12,843 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 20:43:12,843 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:43:12,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:43:12,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1925116710, now seen corresponding path program 1 times [2021-01-06 20:43:12,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:43:12,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272764410] [2021-01-06 20:43:12,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:43:12,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:43:12,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:43:12,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272764410] [2021-01-06 20:43:12,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:43:12,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:43:12,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237334697] [2021-01-06 20:43:12,909 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:43:12,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:43:12,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:43:12,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:43:12,910 INFO L87 Difference]: Start difference. First operand 1061 states and 1652 transitions. Second operand 3 states. [2021-01-06 20:43:13,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:43:13,009 INFO L93 Difference]: Finished difference Result 2857 states and 4470 transitions. [2021-01-06 20:43:13,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:43:13,010 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2021-01-06 20:43:13,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:43:13,021 INFO L225 Difference]: With dead ends: 2857 [2021-01-06 20:43:13,021 INFO L226 Difference]: Without dead ends: 1831 [2021-01-06 20:43:13,024 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:43:13,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1831 states. [2021-01-06 20:43:13,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1831 to 1829. [2021-01-06 20:43:13,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1829 states. [2021-01-06 20:43:13,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1829 states to 1829 states and 2836 transitions. [2021-01-06 20:43:13,130 INFO L78 Accepts]: Start accepts. Automaton has 1829 states and 2836 transitions. Word has length 64 [2021-01-06 20:43:13,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:43:13,131 INFO L481 AbstractCegarLoop]: Abstraction has 1829 states and 2836 transitions. [2021-01-06 20:43:13,131 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:43:13,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1829 states and 2836 transitions. [2021-01-06 20:43:13,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-01-06 20:43:13,132 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:43:13,133 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] [2021-01-06 20:43:13,133 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 20:43:13,133 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:43:13,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:43:13,134 INFO L82 PathProgramCache]: Analyzing trace with hash 210559993, now seen corresponding path program 1 times [2021-01-06 20:43:13,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:43:13,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618449566] [2021-01-06 20:43:13,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:43:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:43:13,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:43:13,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618449566] [2021-01-06 20:43:13,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:43:13,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-06 20:43:13,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893014564] [2021-01-06 20:43:13,352 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 20:43:13,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:43:13,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 20:43:13,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-01-06 20:43:13,354 INFO L87 Difference]: Start difference. First operand 1829 states and 2836 transitions. Second operand 7 states. [2021-01-06 20:43:14,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:43:14,175 INFO L93 Difference]: Finished difference Result 9439 states and 14601 transitions. [2021-01-06 20:43:14,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 20:43:14,176 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2021-01-06 20:43:14,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:43:14,218 INFO L225 Difference]: With dead ends: 9439 [2021-01-06 20:43:14,218 INFO L226 Difference]: Without dead ends: 7645 [2021-01-06 20:43:14,226 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 [2021-01-06 20:43:14,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7645 states. [2021-01-06 20:43:14,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7645 to 7637. [2021-01-06 20:43:14,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7637 states. [2021-01-06 20:43:14,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7637 states to 7637 states and 11764 transitions. [2021-01-06 20:43:14,918 INFO L78 Accepts]: Start accepts. Automaton has 7637 states and 11764 transitions. Word has length 65 [2021-01-06 20:43:14,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:43:14,919 INFO L481 AbstractCegarLoop]: Abstraction has 7637 states and 11764 transitions. [2021-01-06 20:43:14,919 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 20:43:14,919 INFO L276 IsEmpty]: Start isEmpty. Operand 7637 states and 11764 transitions. [2021-01-06 20:43:14,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-01-06 20:43:14,920 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:43:14,921 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] [2021-01-06 20:43:14,921 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-06 20:43:14,921 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:43:14,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:43:14,922 INFO L82 PathProgramCache]: Analyzing trace with hash 701566096, now seen corresponding path program 1 times [2021-01-06 20:43:14,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:43:14,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656229016] [2021-01-06 20:43:14,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:43:14,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:43:15,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:43:15,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656229016] [2021-01-06 20:43:15,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:43:15,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 20:43:15,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638479367] [2021-01-06 20:43:15,044 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 20:43:15,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:43:15,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 20:43:15,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-01-06 20:43:15,045 INFO L87 Difference]: Start difference. First operand 7637 states and 11764 transitions. Second operand 6 states. [2021-01-06 20:43:16,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:43:16,843 INFO L93 Difference]: Finished difference Result 28651 states and 44119 transitions. [2021-01-06 20:43:16,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 20:43:16,844 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2021-01-06 20:43:16,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:43:16,950 INFO L225 Difference]: With dead ends: 28651 [2021-01-06 20:43:16,951 INFO L226 Difference]: Without dead ends: 21049 [2021-01-06 20:43:16,971 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-01-06 20:43:16,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21049 states. [2021-01-06 20:43:18,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21049 to 21045. [2021-01-06 20:43:18,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21045 states. [2021-01-06 20:43:18,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21045 states to 21045 states and 32244 transitions. [2021-01-06 20:43:18,657 INFO L78 Accepts]: Start accepts. Automaton has 21045 states and 32244 transitions. Word has length 67 [2021-01-06 20:43:18,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:43:18,657 INFO L481 AbstractCegarLoop]: Abstraction has 21045 states and 32244 transitions. [2021-01-06 20:43:18,658 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 20:43:18,658 INFO L276 IsEmpty]: Start isEmpty. Operand 21045 states and 32244 transitions. [2021-01-06 20:43:18,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-01-06 20:43:18,659 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:43:18,659 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:43:18,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-06 20:43:18,660 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:43:18,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:43:18,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1975896309, now seen corresponding path program 1 times [2021-01-06 20:43:18,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:43:18,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578676403] [2021-01-06 20:43:18,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:43:18,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:43:18,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:43:18,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578676403] [2021-01-06 20:43:18,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:43:18,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-06 20:43:18,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164241276] [2021-01-06 20:43:18,814 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 20:43:18,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:43:18,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 20:43:18,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-06 20:43:18,815 INFO L87 Difference]: Start difference. First operand 21045 states and 32244 transitions. Second operand 7 states. [2021-01-06 20:43:23,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:43:23,715 INFO L93 Difference]: Finished difference Result 110433 states and 169402 transitions. [2021-01-06 20:43:23,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 20:43:23,715 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 67 [2021-01-06 20:43:23,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:43:23,979 INFO L225 Difference]: With dead ends: 110433 [2021-01-06 20:43:23,980 INFO L226 Difference]: Without dead ends: 89423 [2021-01-06 20:43:24,029 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 [2021-01-06 20:43:24,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89423 states. [2021-01-06 20:43:28,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89423 to 42053. [2021-01-06 20:43:28,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42053 states. [2021-01-06 20:43:28,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42053 states to 42053 states and 63556 transitions. [2021-01-06 20:43:28,107 INFO L78 Accepts]: Start accepts. Automaton has 42053 states and 63556 transitions. Word has length 67 [2021-01-06 20:43:28,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:43:28,108 INFO L481 AbstractCegarLoop]: Abstraction has 42053 states and 63556 transitions. [2021-01-06 20:43:28,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 20:43:28,108 INFO L276 IsEmpty]: Start isEmpty. Operand 42053 states and 63556 transitions. [2021-01-06 20:43:28,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-01-06 20:43:28,109 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:43:28,109 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] [2021-01-06 20:43:28,110 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-06 20:43:28,110 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:43:28,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:43:28,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1142699675, now seen corresponding path program 1 times [2021-01-06 20:43:28,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:43:28,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567814428] [2021-01-06 20:43:28,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:43:28,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:43:28,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:43:28,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567814428] [2021-01-06 20:43:28,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:43:28,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 20:43:28,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922197990] [2021-01-06 20:43:28,225 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 20:43:28,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:43:28,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 20:43:28,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 20:43:28,227 INFO L87 Difference]: Start difference. First operand 42053 states and 63556 transitions. Second operand 5 states. [2021-01-06 20:43:32,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:43:32,738 INFO L93 Difference]: Finished difference Result 85863 states and 128869 transitions. [2021-01-06 20:43:32,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 20:43:32,738 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 68 [2021-01-06 20:43:32,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:43:33,096 INFO L225 Difference]: With dead ends: 85863 [2021-01-06 20:43:33,097 INFO L226 Difference]: Without dead ends: 85861 [2021-01-06 20:43:33,121 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 [2021-01-06 20:43:33,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85861 states. [2021-01-06 20:43:36,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85861 to 43845. [2021-01-06 20:43:36,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43845 states. [2021-01-06 20:43:36,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43845 states to 43845 states and 65348 transitions. [2021-01-06 20:43:36,734 INFO L78 Accepts]: Start accepts. Automaton has 43845 states and 65348 transitions. Word has length 68 [2021-01-06 20:43:36,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:43:36,734 INFO L481 AbstractCegarLoop]: Abstraction has 43845 states and 65348 transitions. [2021-01-06 20:43:36,735 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 20:43:36,735 INFO L276 IsEmpty]: Start isEmpty. Operand 43845 states and 65348 transitions. [2021-01-06 20:43:36,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-01-06 20:43:36,735 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:43:36,736 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] [2021-01-06 20:43:36,736 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-06 20:43:36,736 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:43:36,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:43:36,737 INFO L82 PathProgramCache]: Analyzing trace with hash -1053378469, now seen corresponding path program 1 times [2021-01-06 20:43:36,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:43:36,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346733945] [2021-01-06 20:43:36,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:43:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:43:36,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:43:36,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346733945] [2021-01-06 20:43:36,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:43:36,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:43:36,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613720971] [2021-01-06 20:43:36,792 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:43:36,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:43:36,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:43:36,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:43:36,793 INFO L87 Difference]: Start difference. First operand 43845 states and 65348 transitions. Second operand 3 states. [2021-01-06 20:43:40,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:43:40,118 INFO L93 Difference]: Finished difference Result 94971 states and 141368 transitions. [2021-01-06 20:43:40,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:43:40,119 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2021-01-06 20:43:40,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:43:40,202 INFO L225 Difference]: With dead ends: 94971 [2021-01-06 20:43:40,202 INFO L226 Difference]: Without dead ends: 51161 [2021-01-06 20:43:40,263 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:43:40,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51161 states. [2021-01-06 20:43:43,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51161 to 51159. [2021-01-06 20:43:43,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51159 states. [2021-01-06 20:43:43,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51159 states to 51159 states and 75910 transitions. [2021-01-06 20:43:43,968 INFO L78 Accepts]: Start accepts. Automaton has 51159 states and 75910 transitions. Word has length 69 [2021-01-06 20:43:43,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:43:43,968 INFO L481 AbstractCegarLoop]: Abstraction has 51159 states and 75910 transitions. [2021-01-06 20:43:43,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:43:43,968 INFO L276 IsEmpty]: Start isEmpty. Operand 51159 states and 75910 transitions. [2021-01-06 20:43:43,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-01-06 20:43:43,988 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:43:43,989 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] [2021-01-06 20:43:43,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-06 20:43:43,989 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:43:43,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:43:43,990 INFO L82 PathProgramCache]: Analyzing trace with hash -212554062, now seen corresponding path program 1 times [2021-01-06 20:43:43,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:43:43,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208656789] [2021-01-06 20:43:43,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:43:44,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:43:44,235 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:43:44,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208656789] [2021-01-06 20:43:44,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086836642] [2021-01-06 20:43:44,236 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 [2021-01-06 20:43:44,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:43:44,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 12 conjunts are in the unsatisfiable core [2021-01-06 20:43:44,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 20:43:44,550 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-01-06 20:43:44,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 20:43:44,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 13 [2021-01-06 20:43:44,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89448256] [2021-01-06 20:43:44,551 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-01-06 20:43:44,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:43:44,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-01-06 20:43:44,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-01-06 20:43:44,553 INFO L87 Difference]: Start difference. First operand 51159 states and 75910 transitions. Second operand 13 states. [2021-01-06 20:44:31,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:44:31,895 INFO L93 Difference]: Finished difference Result 536390 states and 787771 transitions. [2021-01-06 20:44:31,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-01-06 20:44:31,896 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 94 [2021-01-06 20:44:31,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:44:33,221 INFO L225 Difference]: With dead ends: 536390 [2021-01-06 20:44:33,222 INFO L226 Difference]: Without dead ends: 485268 [2021-01-06 20:44:33,468 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6405 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=2514, Invalid=12492, Unknown=0, NotChecked=0, Total=15006 [2021-01-06 20:44:33,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485268 states. [2021-01-06 20:44:50,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485268 to 150255. [2021-01-06 20:44:50,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150255 states. [2021-01-06 20:44:50,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150255 states to 150255 states and 220018 transitions. [2021-01-06 20:44:50,513 INFO L78 Accepts]: Start accepts. Automaton has 150255 states and 220018 transitions. Word has length 94 [2021-01-06 20:44:50,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:44:50,513 INFO L481 AbstractCegarLoop]: Abstraction has 150255 states and 220018 transitions. [2021-01-06 20:44:50,514 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-01-06 20:44:50,514 INFO L276 IsEmpty]: Start isEmpty. Operand 150255 states and 220018 transitions. [2021-01-06 20:44:50,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-01-06 20:44:50,538 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:44:50,538 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:44:50,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-01-06 20:44:50,752 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:44:50,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:44:50,753 INFO L82 PathProgramCache]: Analyzing trace with hash 625845135, now seen corresponding path program 1 times [2021-01-06 20:44:50,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:44:50,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036730553] [2021-01-06 20:44:50,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:44:50,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:44:50,820 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:44:50,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036730553] [2021-01-06 20:44:50,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:44:50,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:44:50,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644500129] [2021-01-06 20:44:50,821 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:44:50,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:44:50,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:44:50,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:44:50,822 INFO L87 Difference]: Start difference. First operand 150255 states and 220018 transitions. Second operand 3 states. [2021-01-06 20:45:13,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:45:13,224 INFO L93 Difference]: Finished difference Result 384017 states and 561214 transitions. [2021-01-06 20:45:13,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:45:13,224 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 95 [2021-01-06 20:45:13,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:45:13,971 INFO L225 Difference]: With dead ends: 384017 [2021-01-06 20:45:13,971 INFO L226 Difference]: Without dead ends: 249863 [2021-01-06 20:45:14,094 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:45:14,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249863 states.