/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 20:42:44,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 20:42:44,315 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 20:42:44,352 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 20:42:44,352 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 20:42:44,354 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 20:42:44,356 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 20:42:44,359 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 20:42:44,361 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 20:42:44,362 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 20:42:44,364 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 20:42:44,365 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 20:42:44,366 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 20:42:44,367 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 20:42:44,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 20:42:44,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 20:42:44,371 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 20:42:44,373 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 20:42:44,388 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 20:42:44,391 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 20:42:44,393 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 20:42:44,394 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 20:42:44,396 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 20:42:44,397 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 20:42:44,401 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 20:42:44,401 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 20:42:44,401 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 20:42:44,403 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 20:42:44,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 20:42:44,405 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 20:42:44,405 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 20:42:44,406 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 20:42:44,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 20:42:44,409 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 20:42:44,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 20:42:44,410 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 20:42:44,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 20:42:44,412 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 20:42:44,412 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 20:42:44,413 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 20:42:44,415 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 20:42:44,417 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 20:42:44,448 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 20:42:44,448 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 20:42:44,451 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 20:42:44,451 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 20:42:44,452 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 20:42:44,452 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 20:42:44,453 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 20:42:44,453 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 20:42:44,454 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 20:42:44,454 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 20:42:44,454 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 20:42:44,455 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 20:42:44,455 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 20:42:44,455 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 20:42:44,456 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 20:42:44,456 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 20:42:44,456 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 20:42:44,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 20:42:44,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 20:42:44,458 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 20:42:44,458 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 20:42:44,458 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 20:42:44,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 20:42:44,459 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 20:42:44,459 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 20:42:44,460 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 20:42:44,983 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 20:42:45,022 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 20:42:45,026 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 20:42:45,028 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 20:42:45,029 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 20:42:45,030 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2021-01-06 20:42:45,124 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/92f7a6544/a4dc3a9e24ea4b82a6a5a54e08ee7a83/FLAGada075e79 [2021-01-06 20:42:46,032 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 20:42:46,033 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2021-01-06 20:42:46,056 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/92f7a6544/a4dc3a9e24ea4b82a6a5a54e08ee7a83/FLAGada075e79 [2021-01-06 20:42:46,288 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/92f7a6544/a4dc3a9e24ea4b82a6a5a54e08ee7a83 [2021-01-06 20:42:46,292 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 20:42:46,295 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 20:42:46,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 20:42:46,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 20:42:46,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 20:42:46,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 08:42:46" (1/1) ... [2021-01-06 20:42:46,306 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@326af531 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:42:46, skipping insertion in model container [2021-01-06 20:42:46,306 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 08:42:46" (1/1) ... [2021-01-06 20:42:46,315 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 20:42:46,362 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_19080~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_19179~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~1,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_19337~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_2~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~1,] [2021-01-06 20:42:46,622 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[6701,6714] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~2,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~2,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~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[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~1,] [2021-01-06 20:42:46,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 20:42:46,747 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_19080~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_19179~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~1,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_19337~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_2~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~1,] [2021-01-06 20:42:46,883 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[6701,6714] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~2,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~2,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~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[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~1,] [2021-01-06 20:42:46,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 20:42:46,965 INFO L208 MainTranslator]: Completed translation [2021-01-06 20:42:46,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:42:46 WrapperNode [2021-01-06 20:42:46,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 20:42:46,967 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 20:42:46,967 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 20:42:46,967 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 20:42:46,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:42:46" (1/1) ... [2021-01-06 20:42:47,003 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:42:46" (1/1) ... [2021-01-06 20:42:47,054 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 20:42:47,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 20:42:47,055 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 20:42:47,055 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 20:42:47,072 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:42:46" (1/1) ... [2021-01-06 20:42:47,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:42:46" (1/1) ... [2021-01-06 20:42:47,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:42:46" (1/1) ... [2021-01-06 20:42:47,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:42:46" (1/1) ... [2021-01-06 20:42:47,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:42:46" (1/1) ... [2021-01-06 20:42:47,159 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:42:46" (1/1) ... [2021-01-06 20:42:47,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:42:46" (1/1) ... [2021-01-06 20:42:47,180 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 20:42:47,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 20:42:47,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 20:42:47,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 20:42:47,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:42:46" (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 20:42:47,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 20:42:47,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 20:42:47,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 20:42:47,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 20:42:48,633 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 20:42:48,634 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-01-06 20:42:48,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 08:42:48 BoogieIcfgContainer [2021-01-06 20:42:48,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 20:42:48,639 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 20:42:48,639 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 20:42:48,643 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 20:42:48,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 08:42:46" (1/3) ... [2021-01-06 20:42:48,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@653813cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 08:42:48, skipping insertion in model container [2021-01-06 20:42:48,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:42:46" (2/3) ... [2021-01-06 20:42:48,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@653813cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 08:42:48, skipping insertion in model container [2021-01-06 20:42:48,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 08:42:48" (3/3) ... [2021-01-06 20:42:48,647 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2021-01-06 20:42:48,655 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 20:42:48,661 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 20:42:48,683 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-01-06 20:42:48,716 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 20:42:48,716 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 20:42:48,716 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 20:42:48,717 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 20:42:48,717 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 20:42:48,717 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 20:42:48,717 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 20:42:48,717 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 20:42:48,740 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2021-01-06 20:42:48,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-01-06 20:42:48,750 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:42:48,752 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:42:48,752 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:42:48,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:42:48,759 INFO L82 PathProgramCache]: Analyzing trace with hash -113151096, now seen corresponding path program 1 times [2021-01-06 20:42:48,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:42:48,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795878052] [2021-01-06 20:42:48,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:42:49,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:42:49,367 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 20:42:49,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795878052] [2021-01-06 20:42:49,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:42:49,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:42:49,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273337339] [2021-01-06 20:42:49,382 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:42:49,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:42:49,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:42:49,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:42:49,409 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 3 states. [2021-01-06 20:42:49,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:42:49,625 INFO L93 Difference]: Finished difference Result 364 states and 598 transitions. [2021-01-06 20:42:49,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:42:49,630 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2021-01-06 20:42:49,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:42:49,667 INFO L225 Difference]: With dead ends: 364 [2021-01-06 20:42:49,667 INFO L226 Difference]: Without dead ends: 274 [2021-01-06 20:42:49,677 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 20:42:49,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2021-01-06 20:42:49,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 272. [2021-01-06 20:42:49,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2021-01-06 20:42:49,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 410 transitions. [2021-01-06 20:42:49,805 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 410 transitions. Word has length 64 [2021-01-06 20:42:49,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:42:49,807 INFO L481 AbstractCegarLoop]: Abstraction has 272 states and 410 transitions. [2021-01-06 20:42:49,808 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:42:49,808 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 410 transitions. [2021-01-06 20:42:49,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-01-06 20:42:49,810 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:42:49,811 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 20:42:49,813 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 20:42:49,813 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:42:49,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:42:49,817 INFO L82 PathProgramCache]: Analyzing trace with hash 507394196, now seen corresponding path program 1 times [2021-01-06 20:42:49,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:42:49,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157455478] [2021-01-06 20:42:49,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:42:49,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:42:50,104 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 20:42:50,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157455478] [2021-01-06 20:42:50,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:42:50,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-06 20:42:50,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281505538] [2021-01-06 20:42:50,107 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 20:42:50,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:42:50,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 20:42:50,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-01-06 20:42:50,109 INFO L87 Difference]: Start difference. First operand 272 states and 410 transitions. Second operand 6 states. [2021-01-06 20:42:50,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:42:50,455 INFO L93 Difference]: Finished difference Result 1002 states and 1550 transitions. [2021-01-06 20:42:50,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 20:42:50,456 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2021-01-06 20:42:50,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:42:50,468 INFO L225 Difference]: With dead ends: 1002 [2021-01-06 20:42:50,468 INFO L226 Difference]: Without dead ends: 792 [2021-01-06 20:42:50,475 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-01-06 20:42:50,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2021-01-06 20:42:50,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 786. [2021-01-06 20:42:50,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 786 states. [2021-01-06 20:42:50,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1206 transitions. [2021-01-06 20:42:50,565 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1206 transitions. Word has length 65 [2021-01-06 20:42:50,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:42:50,565 INFO L481 AbstractCegarLoop]: Abstraction has 786 states and 1206 transitions. [2021-01-06 20:42:50,566 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 20:42:50,566 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1206 transitions. [2021-01-06 20:42:50,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-01-06 20:42:50,571 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:42:50,571 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] [2021-01-06 20:42:50,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 20:42:50,572 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:42:50,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:42:50,574 INFO L82 PathProgramCache]: Analyzing trace with hash -1175932082, now seen corresponding path program 1 times [2021-01-06 20:42:50,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:42:50,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933723935] [2021-01-06 20:42:50,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:42:50,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:42:50,804 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 20:42:50,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933723935] [2021-01-06 20:42:50,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:42:50,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 20:42:50,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26420266] [2021-01-06 20:42:50,806 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 20:42:50,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:42:50,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 20:42:50,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-01-06 20:42:50,808 INFO L87 Difference]: Start difference. First operand 786 states and 1206 transitions. Second operand 6 states. [2021-01-06 20:42:51,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:42:51,325 INFO L93 Difference]: Finished difference Result 2640 states and 4113 transitions. [2021-01-06 20:42:51,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 20:42:51,326 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2021-01-06 20:42:51,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:42:51,337 INFO L225 Difference]: With dead ends: 2640 [2021-01-06 20:42:51,338 INFO L226 Difference]: Without dead ends: 1904 [2021-01-06 20:42:51,340 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 20:42:51,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1904 states. [2021-01-06 20:42:51,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1904 to 1900. [2021-01-06 20:42:51,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1900 states. [2021-01-06 20:42:51,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1900 states to 1900 states and 2951 transitions. [2021-01-06 20:42:51,477 INFO L78 Accepts]: Start accepts. Automaton has 1900 states and 2951 transitions. Word has length 66 [2021-01-06 20:42:51,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:42:51,478 INFO L481 AbstractCegarLoop]: Abstraction has 1900 states and 2951 transitions. [2021-01-06 20:42:51,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 20:42:51,478 INFO L276 IsEmpty]: Start isEmpty. Operand 1900 states and 2951 transitions. [2021-01-06 20:42:51,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-01-06 20:42:51,482 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:42:51,482 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] [2021-01-06 20:42:51,482 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 20:42:51,483 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:42:51,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:42:51,484 INFO L82 PathProgramCache]: Analyzing trace with hash 195420080, now seen corresponding path program 1 times [2021-01-06 20:42:51,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:42:51,484 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881546890] [2021-01-06 20:42:51,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:42:51,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:42:51,591 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 20:42:51,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881546890] [2021-01-06 20:42:51,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:42:51,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 20:42:51,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063643205] [2021-01-06 20:42:51,593 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 20:42:51,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:42:51,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 20:42:51,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-01-06 20:42:51,595 INFO L87 Difference]: Start difference. First operand 1900 states and 2951 transitions. Second operand 6 states. [2021-01-06 20:42:52,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:42:52,258 INFO L93 Difference]: Finished difference Result 6610 states and 10356 transitions. [2021-01-06 20:42:52,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 20:42:52,258 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2021-01-06 20:42:52,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:42:52,286 INFO L225 Difference]: With dead ends: 6610 [2021-01-06 20:42:52,286 INFO L226 Difference]: Without dead ends: 4810 [2021-01-06 20:42:52,290 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 20:42:52,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2021-01-06 20:42:52,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4370. [2021-01-06 20:42:52,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4370 states. [2021-01-06 20:42:52,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4370 states to 4370 states and 6814 transitions. [2021-01-06 20:42:52,645 INFO L78 Accepts]: Start accepts. Automaton has 4370 states and 6814 transitions. Word has length 66 [2021-01-06 20:42:52,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:42:52,646 INFO L481 AbstractCegarLoop]: Abstraction has 4370 states and 6814 transitions. [2021-01-06 20:42:52,646 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 20:42:52,646 INFO L276 IsEmpty]: Start isEmpty. Operand 4370 states and 6814 transitions. [2021-01-06 20:42:52,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-01-06 20:42:52,648 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:42:52,649 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] [2021-01-06 20:42:52,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 20:42:52,649 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:42:52,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:42:52,650 INFO L82 PathProgramCache]: Analyzing trace with hash 2140991135, now seen corresponding path program 1 times [2021-01-06 20:42:52,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:42:52,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315275307] [2021-01-06 20:42:52,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:42:52,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:42:52,760 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 20:42:52,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315275307] [2021-01-06 20:42:52,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:42:52,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 20:42:52,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221545747] [2021-01-06 20:42:52,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 20:42:52,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:42:52,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 20:42:52,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-01-06 20:42:52,766 INFO L87 Difference]: Start difference. First operand 4370 states and 6814 transitions. Second operand 6 states. [2021-01-06 20:42:53,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:42:53,894 INFO L93 Difference]: Finished difference Result 16439 states and 25701 transitions. [2021-01-06 20:42:53,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 20:42:53,897 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2021-01-06 20:42:53,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:42:54,010 INFO L225 Difference]: With dead ends: 16439 [2021-01-06 20:42:54,010 INFO L226 Difference]: Without dead ends: 12142 [2021-01-06 20:42:54,022 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 20:42:54,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12142 states. [2021-01-06 20:42:54,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12142 to 12138. [2021-01-06 20:42:54,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12138 states. [2021-01-06 20:42:54,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12138 states to 12138 states and 18894 transitions. [2021-01-06 20:42:54,912 INFO L78 Accepts]: Start accepts. Automaton has 12138 states and 18894 transitions. Word has length 66 [2021-01-06 20:42:54,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:42:54,912 INFO L481 AbstractCegarLoop]: Abstraction has 12138 states and 18894 transitions. [2021-01-06 20:42:54,913 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 20:42:54,913 INFO L276 IsEmpty]: Start isEmpty. Operand 12138 states and 18894 transitions. [2021-01-06 20:42:54,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-01-06 20:42:54,916 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:42:54,916 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] [2021-01-06 20:42:54,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 20:42:54,917 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:42:54,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:42:54,918 INFO L82 PathProgramCache]: Analyzing trace with hash -472666691, now seen corresponding path program 1 times [2021-01-06 20:42:54,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:42:54,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713314704] [2021-01-06 20:42:54,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:42:54,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:42:55,010 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 20:42:55,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713314704] [2021-01-06 20:42:55,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:42:55,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 20:42:55,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822757809] [2021-01-06 20:42:55,013 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 20:42:55,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:42:55,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 20:42:55,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 20:42:55,015 INFO L87 Difference]: Start difference. First operand 12138 states and 18894 transitions. Second operand 5 states. [2021-01-06 20:42:56,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:42:56,509 INFO L93 Difference]: Finished difference Result 33384 states and 52013 transitions. [2021-01-06 20:42:56,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 20:42:56,510 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 66 [2021-01-06 20:42:56,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:42:56,591 INFO L225 Difference]: With dead ends: 33384 [2021-01-06 20:42:56,591 INFO L226 Difference]: Without dead ends: 21280 [2021-01-06 20:42:56,615 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-01-06 20:42:56,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21280 states. [2021-01-06 20:42:58,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21280 to 21278. [2021-01-06 20:42:58,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21278 states. [2021-01-06 20:42:58,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21278 states to 21278 states and 32812 transitions. [2021-01-06 20:42:58,263 INFO L78 Accepts]: Start accepts. Automaton has 21278 states and 32812 transitions. Word has length 66 [2021-01-06 20:42:58,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:42:58,263 INFO L481 AbstractCegarLoop]: Abstraction has 21278 states and 32812 transitions. [2021-01-06 20:42:58,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 20:42:58,264 INFO L276 IsEmpty]: Start isEmpty. Operand 21278 states and 32812 transitions. [2021-01-06 20:42:58,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-01-06 20:42:58,268 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:42:58,268 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 20:42:58,268 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-06 20:42:58,268 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:42:58,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:42:58,269 INFO L82 PathProgramCache]: Analyzing trace with hash 545251456, now seen corresponding path program 1 times [2021-01-06 20:42:58,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:42:58,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862497951] [2021-01-06 20:42:58,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:42:58,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:42:58,402 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 20:42:58,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862497951] [2021-01-06 20:42:58,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:42:58,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 20:42:58,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58090003] [2021-01-06 20:42:58,405 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 20:42:58,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:42:58,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 20:42:58,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 20:42:58,406 INFO L87 Difference]: Start difference. First operand 21278 states and 32812 transitions. Second operand 5 states. [2021-01-06 20:43:00,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:43:00,286 INFO L93 Difference]: Finished difference Result 38890 states and 59627 transitions. [2021-01-06 20:43:00,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 20:43:00,287 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 67 [2021-01-06 20:43:00,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:43:00,412 INFO L225 Difference]: With dead ends: 38890 [2021-01-06 20:43:00,412 INFO L226 Difference]: Without dead ends: 38888 [2021-01-06 20:43:00,428 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-01-06 20:43:00,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38888 states. [2021-01-06 20:43:01,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38888 to 21620. [2021-01-06 20:43:01,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21620 states. [2021-01-06 20:43:02,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21620 states to 21620 states and 33154 transitions. [2021-01-06 20:43:02,062 INFO L78 Accepts]: Start accepts. Automaton has 21620 states and 33154 transitions. Word has length 67 [2021-01-06 20:43:02,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:43:02,064 INFO L481 AbstractCegarLoop]: Abstraction has 21620 states and 33154 transitions. [2021-01-06 20:43:02,064 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 20:43:02,064 INFO L276 IsEmpty]: Start isEmpty. Operand 21620 states and 33154 transitions. [2021-01-06 20:43:02,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-01-06 20:43:02,077 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:43:02,078 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 20:43:02,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-06 20:43:02,078 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:43:02,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:43:02,079 INFO L82 PathProgramCache]: Analyzing trace with hash 2333062, now seen corresponding path program 1 times [2021-01-06 20:43:02,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:43:02,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906688041] [2021-01-06 20:43:02,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:43:02,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:43:02,366 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 20:43:02,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906688041] [2021-01-06 20:43:02,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:43:02,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-06 20:43:02,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580739087] [2021-01-06 20:43:02,368 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-06 20:43:02,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:43:02,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-06 20:43:02,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-01-06 20:43:02,370 INFO L87 Difference]: Start difference. First operand 21620 states and 33154 transitions. Second operand 10 states. [2021-01-06 20:43:12,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:43:12,321 INFO L93 Difference]: Finished difference Result 143231 states and 219600 transitions. [2021-01-06 20:43:12,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-01-06 20:43:12,321 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 68 [2021-01-06 20:43:12,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:43:12,762 INFO L225 Difference]: With dead ends: 143231 [2021-01-06 20:43:12,763 INFO L226 Difference]: Without dead ends: 127121 [2021-01-06 20:43:12,816 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 461 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=391, Invalid=1249, Unknown=0, NotChecked=0, Total=1640 [2021-01-06 20:43:13,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127121 states. [2021-01-06 20:43:15,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127121 to 21780. [2021-01-06 20:43:15,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21780 states. [2021-01-06 20:43:15,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21780 states to 21780 states and 33356 transitions. [2021-01-06 20:43:15,798 INFO L78 Accepts]: Start accepts. Automaton has 21780 states and 33356 transitions. Word has length 68 [2021-01-06 20:43:15,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:43:15,798 INFO L481 AbstractCegarLoop]: Abstraction has 21780 states and 33356 transitions. [2021-01-06 20:43:15,799 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-06 20:43:15,799 INFO L276 IsEmpty]: Start isEmpty. Operand 21780 states and 33356 transitions. [2021-01-06 20:43:15,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-01-06 20:43:15,803 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:43:15,804 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 20:43:15,804 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-06 20:43:15,804 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:43:15,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:43:15,805 INFO L82 PathProgramCache]: Analyzing trace with hash -371480250, now seen corresponding path program 1 times [2021-01-06 20:43:15,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:43:15,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446544388] [2021-01-06 20:43:15,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:43:15,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:43:16,037 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 20:43:16,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446544388] [2021-01-06 20:43:16,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:43:16,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-06 20:43:16,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545473799] [2021-01-06 20:43:16,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-06 20:43:16,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:43:16,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-06 20:43:16,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-01-06 20:43:16,040 INFO L87 Difference]: Start difference. First operand 21780 states and 33356 transitions. Second operand 10 states. [2021-01-06 20:43:25,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:43:25,416 INFO L93 Difference]: Finished difference Result 91925 states and 140300 transitions. [2021-01-06 20:43:25,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-01-06 20:43:25,417 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 68 [2021-01-06 20:43:25,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:43:25,583 INFO L225 Difference]: With dead ends: 91925 [2021-01-06 20:43:25,584 INFO L226 Difference]: Without dead ends: 86803 [2021-01-06 20:43:25,618 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=319, Invalid=871, Unknown=0, NotChecked=0, Total=1190 [2021-01-06 20:43:25,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86803 states. [2021-01-06 20:43:28,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86803 to 21780. [2021-01-06 20:43:28,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21780 states. [2021-01-06 20:43:28,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21780 states to 21780 states and 33354 transitions. [2021-01-06 20:43:28,262 INFO L78 Accepts]: Start accepts. Automaton has 21780 states and 33354 transitions. Word has length 68 [2021-01-06 20:43:28,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:43:28,262 INFO L481 AbstractCegarLoop]: Abstraction has 21780 states and 33354 transitions. [2021-01-06 20:43:28,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-06 20:43:28,262 INFO L276 IsEmpty]: Start isEmpty. Operand 21780 states and 33354 transitions. [2021-01-06 20:43:28,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-01-06 20:43:28,268 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:43:28,268 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 20:43:28,268 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-06 20:43:28,269 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:43:28,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:43:28,269 INFO L82 PathProgramCache]: Analyzing trace with hash 2100624742, now seen corresponding path program 1 times [2021-01-06 20:43:28,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:43:28,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25970707] [2021-01-06 20:43:28,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:43:28,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:43:28,523 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 20:43:28,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25970707] [2021-01-06 20:43:28,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:43:28,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-06 20:43:28,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319200917] [2021-01-06 20:43:28,524 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-06 20:43:28,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:43:28,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-06 20:43:28,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-01-06 20:43:28,526 INFO L87 Difference]: Start difference. First operand 21780 states and 33354 transitions. Second operand 10 states. [2021-01-06 20:43:44,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:43:44,614 INFO L93 Difference]: Finished difference Result 150307 states and 230464 transitions. [2021-01-06 20:43:44,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-01-06 20:43:44,614 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 68 [2021-01-06 20:43:44,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:43:45,016 INFO L225 Difference]: With dead ends: 150307 [2021-01-06 20:43:45,017 INFO L226 Difference]: Without dead ends: 140747 [2021-01-06 20:43:45,054 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=380, Invalid=1180, Unknown=0, NotChecked=0, Total=1560 [2021-01-06 20:43:45,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140747 states. [2021-01-06 20:43:48,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140747 to 22129. [2021-01-06 20:43:48,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22129 states. [2021-01-06 20:43:48,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22129 states to 22129 states and 33797 transitions. [2021-01-06 20:43:48,556 INFO L78 Accepts]: Start accepts. Automaton has 22129 states and 33797 transitions. Word has length 68 [2021-01-06 20:43:48,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:43:48,556 INFO L481 AbstractCegarLoop]: Abstraction has 22129 states and 33797 transitions. [2021-01-06 20:43:48,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-06 20:43:48,556 INFO L276 IsEmpty]: Start isEmpty. Operand 22129 states and 33797 transitions. [2021-01-06 20:43:48,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-01-06 20:43:48,562 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:43:48,562 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 20:43:48,563 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-06 20:43:48,563 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:43:48,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:43:48,563 INFO L82 PathProgramCache]: Analyzing trace with hash -1059619418, now seen corresponding path program 1 times [2021-01-06 20:43:48,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:43:48,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199109469] [2021-01-06 20:43:48,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:43:48,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:43:48,795 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 20:43:48,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199109469] [2021-01-06 20:43:48,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:43:48,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-06 20:43:48,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84520453] [2021-01-06 20:43:48,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-06 20:43:48,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:43:48,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-06 20:43:48,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-01-06 20:43:48,798 INFO L87 Difference]: Start difference. First operand 22129 states and 33797 transitions. Second operand 10 states. [2021-01-06 20:43:49,672 WARN L197 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 17 [2021-01-06 20:44:08,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:44:08,755 INFO L93 Difference]: Finished difference Result 159874 states and 242190 transitions. [2021-01-06 20:44:08,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-06 20:44:08,756 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 68 [2021-01-06 20:44:08,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:44:09,124 INFO L225 Difference]: With dead ends: 159874 [2021-01-06 20:44:09,125 INFO L226 Difference]: Without dead ends: 138815 [2021-01-06 20:44:09,171 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=272, Invalid=850, Unknown=0, NotChecked=0, Total=1122 [2021-01-06 20:44:09,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138815 states. [2021-01-06 20:44:13,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138815 to 22279. [2021-01-06 20:44:13,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22279 states. [2021-01-06 20:44:13,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22279 states to 22279 states and 33964 transitions. [2021-01-06 20:44:13,106 INFO L78 Accepts]: Start accepts. Automaton has 22279 states and 33964 transitions. Word has length 68 [2021-01-06 20:44:13,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:44:13,106 INFO L481 AbstractCegarLoop]: Abstraction has 22279 states and 33964 transitions. [2021-01-06 20:44:13,107 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-06 20:44:13,107 INFO L276 IsEmpty]: Start isEmpty. Operand 22279 states and 33964 transitions. [2021-01-06 20:44:13,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-01-06 20:44:13,112 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:44:13,112 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 20:44:13,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-06 20:44:13,112 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:44:13,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:44:13,113 INFO L82 PathProgramCache]: Analyzing trace with hash 1047773961, now seen corresponding path program 1 times [2021-01-06 20:44:13,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:44:13,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434979932] [2021-01-06 20:44:13,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:44:13,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:44:13,210 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 20:44:13,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434979932] [2021-01-06 20:44:13,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:44:13,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 20:44:13,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472339920] [2021-01-06 20:44:13,211 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 20:44:13,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:44:13,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 20:44:13,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 20:44:13,212 INFO L87 Difference]: Start difference. First operand 22279 states and 33964 transitions. Second operand 4 states. [2021-01-06 20:44:18,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:44:18,854 INFO L93 Difference]: Finished difference Result 60593 states and 92421 transitions. [2021-01-06 20:44:18,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 20:44:18,855 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 69 [2021-01-06 20:44:18,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:44:18,900 INFO L225 Difference]: With dead ends: 60593 [2021-01-06 20:44:18,900 INFO L226 Difference]: Without dead ends: 39867 [2021-01-06 20:44:18,919 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 20:44:18,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39867 states. [2021-01-06 20:44:24,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39867 to 39541. [2021-01-06 20:44:24,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39541 states. [2021-01-06 20:44:24,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39541 states to 39541 states and 59710 transitions. [2021-01-06 20:44:24,459 INFO L78 Accepts]: Start accepts. Automaton has 39541 states and 59710 transitions. Word has length 69 [2021-01-06 20:44:24,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:44:24,459 INFO L481 AbstractCegarLoop]: Abstraction has 39541 states and 59710 transitions. [2021-01-06 20:44:24,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 20:44:24,459 INFO L276 IsEmpty]: Start isEmpty. Operand 39541 states and 59710 transitions. [2021-01-06 20:44:24,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-01-06 20:44:24,464 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:44:24,464 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 20:44:24,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-01-06 20:44:24,464 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:44:24,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:44:24,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1802228217, now seen corresponding path program 1 times [2021-01-06 20:44:24,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:44:24,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413361171] [2021-01-06 20:44:24,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:44:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:44:24,507 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 20:44:24,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413361171] [2021-01-06 20:44:24,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:44:24,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:44:24,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699637265] [2021-01-06 20:44:24,508 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:44:24,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:44:24,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:44:24,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:44:24,509 INFO L87 Difference]: Start difference. First operand 39541 states and 59710 transitions. Second operand 3 states. [2021-01-06 20:44:31,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:44:31,992 INFO L93 Difference]: Finished difference Result 74323 states and 112418 transitions. [2021-01-06 20:44:31,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:44:31,993 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2021-01-06 20:44:31,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:44:32,059 INFO L225 Difference]: With dead ends: 74323 [2021-01-06 20:44:32,059 INFO L226 Difference]: Without dead ends: 51801 [2021-01-06 20:44:32,082 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 20:44:32,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51801 states. [2021-01-06 20:44:39,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51801 to 51055. [2021-01-06 20:44:39,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51055 states. [2021-01-06 20:44:39,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51055 states to 51055 states and 76206 transitions. [2021-01-06 20:44:39,707 INFO L78 Accepts]: Start accepts. Automaton has 51055 states and 76206 transitions. Word has length 69 [2021-01-06 20:44:39,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:44:39,707 INFO L481 AbstractCegarLoop]: Abstraction has 51055 states and 76206 transitions. [2021-01-06 20:44:39,707 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:44:39,707 INFO L276 IsEmpty]: Start isEmpty. Operand 51055 states and 76206 transitions. [2021-01-06 20:44:39,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-01-06 20:44:39,712 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:44:39,712 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 20:44:39,712 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-01-06 20:44:39,712 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:44:39,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:44:39,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1041130329, now seen corresponding path program 1 times [2021-01-06 20:44:39,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:44:39,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491150930] [2021-01-06 20:44:39,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:44:39,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:44:39,755 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 20:44:39,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491150930] [2021-01-06 20:44:39,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:44:39,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:44:39,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842111638] [2021-01-06 20:44:39,757 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:44:39,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:44:39,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:44:39,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:44:39,758 INFO L87 Difference]: Start difference. First operand 51055 states and 76206 transitions. Second operand 3 states. [2021-01-06 20:44:49,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:44:49,836 INFO L93 Difference]: Finished difference Result 113107 states and 169015 transitions. [2021-01-06 20:44:49,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:44:49,837 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2021-01-06 20:44:49,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:44:49,944 INFO L225 Difference]: With dead ends: 113107 [2021-01-06 20:44:49,944 INFO L226 Difference]: Without dead ends: 67924 [2021-01-06 20:44:49,981 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 20:44:50,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67924 states. [2021-01-06 20:45:00,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67924 to 67718. [2021-01-06 20:45:00,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67718 states. [2021-01-06 20:45:00,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67718 states to 67718 states and 99863 transitions. [2021-01-06 20:45:00,350 INFO L78 Accepts]: Start accepts. Automaton has 67718 states and 99863 transitions. Word has length 69 [2021-01-06 20:45:00,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:45:00,350 INFO L481 AbstractCegarLoop]: Abstraction has 67718 states and 99863 transitions. [2021-01-06 20:45:00,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:45:00,350 INFO L276 IsEmpty]: Start isEmpty. Operand 67718 states and 99863 transitions. [2021-01-06 20:45:00,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-01-06 20:45:00,355 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:45:00,355 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 20:45:00,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-01-06 20:45:00,356 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:45:00,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:45:00,356 INFO L82 PathProgramCache]: Analyzing trace with hash -933815240, now seen corresponding path program 1 times [2021-01-06 20:45:00,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:45:00,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195943262] [2021-01-06 20:45:00,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:45:00,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:45:00,400 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 20:45:00,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195943262] [2021-01-06 20:45:00,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:45:00,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:45:00,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291221506] [2021-01-06 20:45:00,401 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:45:00,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:45:00,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:45:00,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:45:00,402 INFO L87 Difference]: Start difference. First operand 67718 states and 99863 transitions. Second operand 3 states. [2021-01-06 20:45:12,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:45:12,386 INFO L93 Difference]: Finished difference Result 98021 states and 143859 transitions. [2021-01-06 20:45:12,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:45:12,386 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2021-01-06 20:45:12,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:45:12,482 INFO L225 Difference]: With dead ends: 98021 [2021-01-06 20:45:12,482 INFO L226 Difference]: Without dead ends: 77479 [2021-01-06 20:45:12,518 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 20:45:12,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77479 states. [2021-01-06 20:45:23,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77479 to 72254. [2021-01-06 20:45:23,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72254 states. [2021-01-06 20:45:24,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72254 states to 72254 states and 104755 transitions. [2021-01-06 20:45:24,086 INFO L78 Accepts]: Start accepts. Automaton has 72254 states and 104755 transitions. Word has length 69 [2021-01-06 20:45:24,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:45:24,087 INFO L481 AbstractCegarLoop]: Abstraction has 72254 states and 104755 transitions. [2021-01-06 20:45:24,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:45:24,087 INFO L276 IsEmpty]: Start isEmpty. Operand 72254 states and 104755 transitions. [2021-01-06 20:45:24,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-01-06 20:45:24,090 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:45:24,090 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 20:45:24,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-01-06 20:45:24,090 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:45:24,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:45:24,091 INFO L82 PathProgramCache]: Analyzing trace with hash 804290264, now seen corresponding path program 1 times [2021-01-06 20:45:24,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:45:24,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855954006] [2021-01-06 20:45:24,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:45:24,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:45:24,133 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 20:45:24,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855954006] [2021-01-06 20:45:24,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:45:24,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:45:24,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746565828] [2021-01-06 20:45:24,135 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:45:24,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:45:24,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:45:24,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:45:24,136 INFO L87 Difference]: Start difference. First operand 72254 states and 104755 transitions. Second operand 3 states. [2021-01-06 20:45:39,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:45:39,345 INFO L93 Difference]: Finished difference Result 158463 states and 229396 transitions. [2021-01-06 20:45:39,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:45:39,345 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2021-01-06 20:45:39,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:45:39,470 INFO L225 Difference]: With dead ends: 158463 [2021-01-06 20:45:39,471 INFO L226 Difference]: Without dead ends: 92079 [2021-01-06 20:45:39,518 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 20:45:39,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92079 states. [2021-01-06 20:45:55,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92079 to 91009. [2021-01-06 20:45:55,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91009 states. [2021-01-06 20:45:55,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91009 states to 91009 states and 129254 transitions. [2021-01-06 20:45:55,216 INFO L78 Accepts]: Start accepts. Automaton has 91009 states and 129254 transitions. Word has length 69 [2021-01-06 20:45:55,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:45:55,216 INFO L481 AbstractCegarLoop]: Abstraction has 91009 states and 129254 transitions. [2021-01-06 20:45:55,216 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:45:55,216 INFO L276 IsEmpty]: Start isEmpty. Operand 91009 states and 129254 transitions. [2021-01-06 20:45:55,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-01-06 20:45:55,219 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:45:55,219 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:45:55,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-01-06 20:45:55,220 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:45:55,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:45:55,220 INFO L82 PathProgramCache]: Analyzing trace with hash -77781245, now seen corresponding path program 1 times [2021-01-06 20:45:55,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:45:55,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362578990] [2021-01-06 20:45:55,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:45:55,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:45:55,347 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 20:45:55,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362578990] [2021-01-06 20:45:55,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:45:55,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-06 20:45:55,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315230585] [2021-01-06 20:45:55,349 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 20:45:55,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:45:55,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 20:45:55,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-01-06 20:45:55,351 INFO L87 Difference]: Start difference. First operand 91009 states and 129254 transitions. Second operand 6 states. [2021-01-06 20:46:41,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:46:41,921 INFO L93 Difference]: Finished difference Result 336366 states and 477998 transitions. [2021-01-06 20:46:41,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 20:46:41,921 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 70 [2021-01-06 20:46:41,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:46:42,458 INFO L225 Difference]: With dead ends: 336366 [2021-01-06 20:46:42,458 INFO L226 Difference]: Without dead ends: 258176 [2021-01-06 20:46:42,583 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-01-06 20:46:42,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258176 states.