/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 10:59:35,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 10:59:35,235 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 10:59:35,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 10:59:35,285 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 10:59:35,287 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 10:59:35,289 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 10:59:35,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 10:59:35,293 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 10:59:35,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 10:59:35,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 10:59:35,297 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 10:59:35,297 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 10:59:35,298 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 10:59:35,299 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 10:59:35,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 10:59:35,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 10:59:35,303 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 10:59:35,305 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 10:59:35,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 10:59:35,309 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 10:59:35,310 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 10:59:35,311 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 10:59:35,312 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 10:59:35,336 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 10:59:35,337 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 10:59:35,337 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 10:59:35,338 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 10:59:35,339 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 10:59:35,340 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 10:59:35,340 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 10:59:35,341 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 10:59:35,342 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 10:59:35,343 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 10:59:35,344 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 10:59:35,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 10:59:35,345 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 10:59:35,346 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 10:59:35,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 10:59:35,347 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 10:59:35,348 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 10:59:35,349 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 10:59:35,375 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 10:59:35,375 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 10:59:35,376 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 10:59:35,377 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 10:59:35,377 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 10:59:35,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 10:59:35,377 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 10:59:35,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 10:59:35,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 10:59:35,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 10:59:35,378 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 10:59:35,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 10:59:35,379 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 10:59:35,379 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 10:59:35,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 10:59:35,379 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 10:59:35,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 10:59:35,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 10:59:35,380 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 10:59:35,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 10:59:35,381 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 10:59:35,381 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 10:59:35,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 10:59:35,381 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 10:59:35,381 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 10:59:35,382 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 10:59:35,749 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 10:59:35,786 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 10:59:35,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 10:59:35,790 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 10:59:35,792 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 10:59:35,793 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2020-12-23 10:59:35,877 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/235f8d5be/947cb8fd77f54ae295fa8b14ec773ceb/FLAG68b27ba48 [2020-12-23 10:59:36,581 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 10:59:36,582 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2020-12-23 10:59:36,594 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/235f8d5be/947cb8fd77f54ae295fa8b14ec773ceb/FLAG68b27ba48 [2020-12-23 10:59:36,915 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/235f8d5be/947cb8fd77f54ae295fa8b14ec773ceb [2020-12-23 10:59:36,925 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 10:59:36,928 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 10:59:36,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 10:59:36,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 10:59:36,935 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 10:59:36,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 10:59:36" (1/1) ... [2020-12-23 10:59:36,938 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c43f02f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:59:36, skipping insertion in model container [2020-12-23 10:59:36,938 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 10:59:36" (1/1) ... [2020-12-23 10:59:36,947 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 10:59:37,008 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_1394~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_1470~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~0,] [2020-12-23 10:59:37,191 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[3703,3716] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~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_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] [2020-12-23 10:59:37,213 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 10:59:37,239 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_1394~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_1470~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~0,] [2020-12-23 10:59:37,327 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[3703,3716] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~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_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] [2020-12-23 10:59:37,360 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 10:59:37,402 INFO L208 MainTranslator]: Completed translation [2020-12-23 10:59:37,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:59:37 WrapperNode [2020-12-23 10:59:37,403 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 10:59:37,405 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 10:59:37,405 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 10:59:37,406 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 10:59:37,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:59:37" (1/1) ... [2020-12-23 10:59:37,449 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:59:37" (1/1) ... [2020-12-23 10:59:37,486 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 10:59:37,487 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 10:59:37,487 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 10:59:37,487 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 10:59:37,498 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:59:37" (1/1) ... [2020-12-23 10:59:37,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:59:37" (1/1) ... [2020-12-23 10:59:37,502 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:59:37" (1/1) ... [2020-12-23 10:59:37,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:59:37" (1/1) ... [2020-12-23 10:59:37,508 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:59:37" (1/1) ... [2020-12-23 10:59:37,511 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:59:37" (1/1) ... [2020-12-23 10:59:37,514 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:59:37" (1/1) ... [2020-12-23 10:59:37,518 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 10:59:37,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 10:59:37,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 10:59:37,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 10:59:37,520 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:59:37" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 10:59:37,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 10:59:37,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 10:59:37,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 10:59:37,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 10:59:38,324 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 10:59:38,325 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-23 10:59:38,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 10:59:38 BoogieIcfgContainer [2020-12-23 10:59:38,327 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 10:59:38,328 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 10:59:38,328 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 10:59:38,332 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 10:59:38,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 10:59:36" (1/3) ... [2020-12-23 10:59:38,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37a8132b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 10:59:38, skipping insertion in model container [2020-12-23 10:59:38,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:59:37" (2/3) ... [2020-12-23 10:59:38,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37a8132b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 10:59:38, skipping insertion in model container [2020-12-23 10:59:38,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 10:59:38" (3/3) ... [2020-12-23 10:59:38,335 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2020-12-23 10:59:38,341 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 10:59:38,346 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 10:59:38,366 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 10:59:38,396 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 10:59:38,397 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 10:59:38,397 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 10:59:38,397 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 10:59:38,397 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 10:59:38,397 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 10:59:38,397 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 10:59:38,398 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 10:59:38,414 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2020-12-23 10:59:38,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-23 10:59:38,421 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:59:38,422 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] [2020-12-23 10:59:38,422 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:59:38,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:59:38,429 INFO L82 PathProgramCache]: Analyzing trace with hash -976687966, now seen corresponding path program 1 times [2020-12-23 10:59:38,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:59:38,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745488388] [2020-12-23 10:59:38,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:59:38,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:59:38,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:59:38,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745488388] [2020-12-23 10:59:38,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:59:38,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:59:38,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806812650] [2020-12-23 10:59:38,773 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:59:38,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:59:38,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:59:38,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:59:38,795 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 3 states. [2020-12-23 10:59:38,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:59:38,917 INFO L93 Difference]: Finished difference Result 146 states and 230 transitions. [2020-12-23 10:59:38,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:59:38,920 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-12-23 10:59:38,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:59:38,948 INFO L225 Difference]: With dead ends: 146 [2020-12-23 10:59:38,948 INFO L226 Difference]: Without dead ends: 95 [2020-12-23 10:59:38,952 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:59:38,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-12-23 10:59:39,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2020-12-23 10:59:39,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-12-23 10:59:39,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 136 transitions. [2020-12-23 10:59:39,016 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 136 transitions. Word has length 37 [2020-12-23 10:59:39,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:59:39,017 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 136 transitions. [2020-12-23 10:59:39,017 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:59:39,017 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 136 transitions. [2020-12-23 10:59:39,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-23 10:59:39,019 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:59:39,019 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] [2020-12-23 10:59:39,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 10:59:39,020 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:59:39,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:59:39,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1572742836, now seen corresponding path program 1 times [2020-12-23 10:59:39,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:59:39,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929854257] [2020-12-23 10:59:39,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:59:39,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:59:39,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:59:39,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929854257] [2020-12-23 10:59:39,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:59:39,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:59:39,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017433378] [2020-12-23 10:59:39,154 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:59:39,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:59:39,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:59:39,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:59:39,156 INFO L87 Difference]: Start difference. First operand 93 states and 136 transitions. Second operand 3 states. [2020-12-23 10:59:39,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:59:39,228 INFO L93 Difference]: Finished difference Result 225 states and 344 transitions. [2020-12-23 10:59:39,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:59:39,234 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2020-12-23 10:59:39,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:59:39,239 INFO L225 Difference]: With dead ends: 225 [2020-12-23 10:59:39,240 INFO L226 Difference]: Without dead ends: 151 [2020-12-23 10:59:39,241 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:59:39,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-12-23 10:59:39,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 149. [2020-12-23 10:59:39,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-12-23 10:59:39,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 224 transitions. [2020-12-23 10:59:39,306 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 224 transitions. Word has length 38 [2020-12-23 10:59:39,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:59:39,307 INFO L481 AbstractCegarLoop]: Abstraction has 149 states and 224 transitions. [2020-12-23 10:59:39,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:59:39,307 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 224 transitions. [2020-12-23 10:59:39,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-23 10:59:39,309 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:59:39,309 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] [2020-12-23 10:59:39,309 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 10:59:39,310 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:59:39,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:59:39,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1624580866, now seen corresponding path program 1 times [2020-12-23 10:59:39,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:59:39,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681352394] [2020-12-23 10:59:39,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:59:39,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:59:39,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:59:39,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681352394] [2020-12-23 10:59:39,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:59:39,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 10:59:39,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030651802] [2020-12-23 10:59:39,515 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 10:59:39,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:59:39,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 10:59:39,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:59:39,519 INFO L87 Difference]: Start difference. First operand 149 states and 224 transitions. Second operand 5 states. [2020-12-23 10:59:39,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:59:39,826 INFO L93 Difference]: Finished difference Result 409 states and 634 transitions. [2020-12-23 10:59:39,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:59:39,832 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2020-12-23 10:59:39,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:59:39,836 INFO L225 Difference]: With dead ends: 409 [2020-12-23 10:59:39,836 INFO L226 Difference]: Without dead ends: 279 [2020-12-23 10:59:39,837 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 10:59:39,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-12-23 10:59:39,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 277. [2020-12-23 10:59:39,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-12-23 10:59:39,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 424 transitions. [2020-12-23 10:59:39,877 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 424 transitions. Word has length 39 [2020-12-23 10:59:39,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:59:39,877 INFO L481 AbstractCegarLoop]: Abstraction has 277 states and 424 transitions. [2020-12-23 10:59:39,877 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 10:59:39,878 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 424 transitions. [2020-12-23 10:59:39,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-23 10:59:39,879 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:59:39,879 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] [2020-12-23 10:59:39,879 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 10:59:39,880 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:59:39,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:59:39,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1223356835, now seen corresponding path program 1 times [2020-12-23 10:59:39,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:59:39,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871209936] [2020-12-23 10:59:39,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:59:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:59:39,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:59:39,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871209936] [2020-12-23 10:59:39,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:59:39,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 10:59:40,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295417454] [2020-12-23 10:59:40,001 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 10:59:40,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:59:40,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 10:59:40,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:59:40,004 INFO L87 Difference]: Start difference. First operand 277 states and 424 transitions. Second operand 5 states. [2020-12-23 10:59:40,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:59:40,188 INFO L93 Difference]: Finished difference Result 535 states and 829 transitions. [2020-12-23 10:59:40,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:59:40,190 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2020-12-23 10:59:40,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:59:40,192 INFO L225 Difference]: With dead ends: 535 [2020-12-23 10:59:40,193 INFO L226 Difference]: Without dead ends: 277 [2020-12-23 10:59:40,199 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 10:59:40,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-12-23 10:59:40,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 277. [2020-12-23 10:59:40,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-12-23 10:59:40,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 420 transitions. [2020-12-23 10:59:40,264 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 420 transitions. Word has length 39 [2020-12-23 10:59:40,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:59:40,266 INFO L481 AbstractCegarLoop]: Abstraction has 277 states and 420 transitions. [2020-12-23 10:59:40,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 10:59:40,266 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 420 transitions. [2020-12-23 10:59:40,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-23 10:59:40,268 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:59:40,268 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] [2020-12-23 10:59:40,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 10:59:40,271 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:59:40,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:59:40,272 INFO L82 PathProgramCache]: Analyzing trace with hash -618673698, now seen corresponding path program 1 times [2020-12-23 10:59:40,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:59:40,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534576515] [2020-12-23 10:59:40,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:59:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:59:40,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:59:40,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534576515] [2020-12-23 10:59:40,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:59:40,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:59:40,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069360082] [2020-12-23 10:59:40,431 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 10:59:40,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:59:40,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 10:59:40,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:59:40,432 INFO L87 Difference]: Start difference. First operand 277 states and 420 transitions. Second operand 5 states. [2020-12-23 10:59:40,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:59:40,624 INFO L93 Difference]: Finished difference Result 1309 states and 2024 transitions. [2020-12-23 10:59:40,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:59:40,625 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2020-12-23 10:59:40,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:59:40,632 INFO L225 Difference]: With dead ends: 1309 [2020-12-23 10:59:40,632 INFO L226 Difference]: Without dead ends: 1051 [2020-12-23 10:59:40,634 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:59:40,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1051 states. [2020-12-23 10:59:40,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1051 to 533. [2020-12-23 10:59:40,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 533 states. [2020-12-23 10:59:40,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 804 transitions. [2020-12-23 10:59:40,703 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 804 transitions. Word has length 39 [2020-12-23 10:59:40,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:59:40,703 INFO L481 AbstractCegarLoop]: Abstraction has 533 states and 804 transitions. [2020-12-23 10:59:40,703 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 10:59:40,704 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 804 transitions. [2020-12-23 10:59:40,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-23 10:59:40,705 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:59:40,705 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] [2020-12-23 10:59:40,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 10:59:40,706 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:59:40,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:59:40,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1533207258, now seen corresponding path program 1 times [2020-12-23 10:59:40,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:59:40,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307456799] [2020-12-23 10:59:40,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:59:40,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:59:40,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:59:40,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307456799] [2020-12-23 10:59:40,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:59:40,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:59:40,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078832971] [2020-12-23 10:59:40,766 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:59:40,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:59:40,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:59:40,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:59:40,767 INFO L87 Difference]: Start difference. First operand 533 states and 804 transitions. Second operand 3 states. [2020-12-23 10:59:40,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:59:40,875 INFO L93 Difference]: Finished difference Result 1261 states and 1902 transitions. [2020-12-23 10:59:40,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:59:40,876 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 41 [2020-12-23 10:59:40,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:59:40,880 INFO L225 Difference]: With dead ends: 1261 [2020-12-23 10:59:40,881 INFO L226 Difference]: Without dead ends: 747 [2020-12-23 10:59:40,882 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:59:40,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2020-12-23 10:59:40,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 737. [2020-12-23 10:59:40,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 737 states. [2020-12-23 10:59:40,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 1088 transitions. [2020-12-23 10:59:40,959 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 1088 transitions. Word has length 41 [2020-12-23 10:59:40,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:59:40,960 INFO L481 AbstractCegarLoop]: Abstraction has 737 states and 1088 transitions. [2020-12-23 10:59:40,960 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:59:40,960 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 1088 transitions. [2020-12-23 10:59:40,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-23 10:59:40,961 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:59:40,961 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] [2020-12-23 10:59:40,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 10:59:40,962 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:59:40,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:59:40,963 INFO L82 PathProgramCache]: Analyzing trace with hash 1554209913, now seen corresponding path program 1 times [2020-12-23 10:59:40,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:59:40,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861653119] [2020-12-23 10:59:40,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:59:40,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:59:41,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:59:41,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861653119] [2020-12-23 10:59:41,130 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:59:41,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:59:41,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322468420] [2020-12-23 10:59:41,131 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 10:59:41,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:59:41,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 10:59:41,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:59:41,132 INFO L87 Difference]: Start difference. First operand 737 states and 1088 transitions. Second operand 5 states. [2020-12-23 10:59:41,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:59:41,385 INFO L93 Difference]: Finished difference Result 2073 states and 3102 transitions. [2020-12-23 10:59:41,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:59:41,386 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2020-12-23 10:59:41,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:59:41,394 INFO L225 Difference]: With dead ends: 2073 [2020-12-23 10:59:41,395 INFO L226 Difference]: Without dead ends: 1355 [2020-12-23 10:59:41,397 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:59:41,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1355 states. [2020-12-23 10:59:41,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1355 to 737. [2020-12-23 10:59:41,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 737 states. [2020-12-23 10:59:41,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 1076 transitions. [2020-12-23 10:59:41,477 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 1076 transitions. Word has length 41 [2020-12-23 10:59:41,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:59:41,477 INFO L481 AbstractCegarLoop]: Abstraction has 737 states and 1076 transitions. [2020-12-23 10:59:41,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 10:59:41,478 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 1076 transitions. [2020-12-23 10:59:41,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-23 10:59:41,479 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:59:41,479 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] [2020-12-23 10:59:41,479 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 10:59:41,479 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:59:41,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:59:41,480 INFO L82 PathProgramCache]: Analyzing trace with hash 933957624, now seen corresponding path program 1 times [2020-12-23 10:59:41,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:59:41,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557117179] [2020-12-23 10:59:41,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:59:41,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:59:41,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:59:41,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557117179] [2020-12-23 10:59:41,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:59:41,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:59:41,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563809152] [2020-12-23 10:59:41,570 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 10:59:41,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:59:41,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 10:59:41,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:59:41,571 INFO L87 Difference]: Start difference. First operand 737 states and 1076 transitions. Second operand 5 states. [2020-12-23 10:59:41,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:59:41,782 INFO L93 Difference]: Finished difference Result 1344 states and 1963 transitions. [2020-12-23 10:59:41,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 10:59:41,783 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2020-12-23 10:59:41,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:59:41,790 INFO L225 Difference]: With dead ends: 1344 [2020-12-23 10:59:41,790 INFO L226 Difference]: Without dead ends: 1342 [2020-12-23 10:59:41,791 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:59:41,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2020-12-23 10:59:41,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 769. [2020-12-23 10:59:41,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 769 states. [2020-12-23 10:59:41,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 1104 transitions. [2020-12-23 10:59:41,884 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 1104 transitions. Word has length 42 [2020-12-23 10:59:41,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:59:41,884 INFO L481 AbstractCegarLoop]: Abstraction has 769 states and 1104 transitions. [2020-12-23 10:59:41,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 10:59:41,884 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 1104 transitions. [2020-12-23 10:59:41,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-23 10:59:41,885 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:59:41,885 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] [2020-12-23 10:59:41,886 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 10:59:41,886 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:59:41,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:59:41,886 INFO L82 PathProgramCache]: Analyzing trace with hash 883353381, now seen corresponding path program 1 times [2020-12-23 10:59:41,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:59:41,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938838394] [2020-12-23 10:59:41,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:59:41,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:59:41,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:59:41,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938838394] [2020-12-23 10:59:41,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:59:41,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:59:41,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99379401] [2020-12-23 10:59:41,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:59:41,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:59:41,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:59:41,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:59:41,925 INFO L87 Difference]: Start difference. First operand 769 states and 1104 transitions. Second operand 3 states. [2020-12-23 10:59:42,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:59:42,061 INFO L93 Difference]: Finished difference Result 1704 states and 2478 transitions. [2020-12-23 10:59:42,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:59:42,062 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2020-12-23 10:59:42,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:59:42,069 INFO L225 Difference]: With dead ends: 1704 [2020-12-23 10:59:42,069 INFO L226 Difference]: Without dead ends: 1157 [2020-12-23 10:59:42,070 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:59:42,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2020-12-23 10:59:42,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1155. [2020-12-23 10:59:42,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1155 states. [2020-12-23 10:59:42,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1650 transitions. [2020-12-23 10:59:42,216 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1650 transitions. Word has length 42 [2020-12-23 10:59:42,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:59:42,216 INFO L481 AbstractCegarLoop]: Abstraction has 1155 states and 1650 transitions. [2020-12-23 10:59:42,216 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:59:42,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1650 transitions. [2020-12-23 10:59:42,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-12-23 10:59:42,219 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:59:42,220 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:59:42,220 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 10:59:42,220 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:59:42,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:59:42,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1515661308, now seen corresponding path program 1 times [2020-12-23 10:59:42,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:59:42,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917353717] [2020-12-23 10:59:42,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:59:42,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:59:42,370 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-23 10:59:42,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917353717] [2020-12-23 10:59:42,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:59:42,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:59:42,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239385032] [2020-12-23 10:59:42,373 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 10:59:42,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:59:42,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 10:59:42,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:59:42,374 INFO L87 Difference]: Start difference. First operand 1155 states and 1650 transitions. Second operand 5 states. [2020-12-23 10:59:42,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:59:42,866 INFO L93 Difference]: Finished difference Result 4923 states and 7048 transitions. [2020-12-23 10:59:42,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:59:42,867 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 61 [2020-12-23 10:59:42,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:59:42,886 INFO L225 Difference]: With dead ends: 4923 [2020-12-23 10:59:42,886 INFO L226 Difference]: Without dead ends: 3789 [2020-12-23 10:59:42,889 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:59:42,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3789 states. [2020-12-23 10:59:43,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3789 to 2287. [2020-12-23 10:59:43,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2287 states. [2020-12-23 10:59:43,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2287 states to 2287 states and 3258 transitions. [2020-12-23 10:59:43,184 INFO L78 Accepts]: Start accepts. Automaton has 2287 states and 3258 transitions. Word has length 61 [2020-12-23 10:59:43,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:59:43,185 INFO L481 AbstractCegarLoop]: Abstraction has 2287 states and 3258 transitions. [2020-12-23 10:59:43,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 10:59:43,185 INFO L276 IsEmpty]: Start isEmpty. Operand 2287 states and 3258 transitions. [2020-12-23 10:59:43,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-12-23 10:59:43,186 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:59:43,186 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:59:43,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 10:59:43,187 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:59:43,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:59:43,187 INFO L82 PathProgramCache]: Analyzing trace with hash -1625359882, now seen corresponding path program 1 times [2020-12-23 10:59:43,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:59:43,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109900161] [2020-12-23 10:59:43,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:59:43,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:59:43,300 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-12-23 10:59:43,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109900161] [2020-12-23 10:59:43,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:59:43,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:59:43,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936725623] [2020-12-23 10:59:43,303 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 10:59:43,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:59:43,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 10:59:43,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:59:43,305 INFO L87 Difference]: Start difference. First operand 2287 states and 3258 transitions. Second operand 5 states. [2020-12-23 10:59:43,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:59:43,905 INFO L93 Difference]: Finished difference Result 6055 states and 8656 transitions. [2020-12-23 10:59:43,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:59:43,906 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 61 [2020-12-23 10:59:43,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:59:43,930 INFO L225 Difference]: With dead ends: 6055 [2020-12-23 10:59:43,931 INFO L226 Difference]: Without dead ends: 4921 [2020-12-23 10:59:43,934 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:59:43,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4921 states. [2020-12-23 10:59:44,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4921 to 3987. [2020-12-23 10:59:44,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3987 states. [2020-12-23 10:59:44,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3987 states to 3987 states and 5652 transitions. [2020-12-23 10:59:44,454 INFO L78 Accepts]: Start accepts. Automaton has 3987 states and 5652 transitions. Word has length 61 [2020-12-23 10:59:44,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:59:44,455 INFO L481 AbstractCegarLoop]: Abstraction has 3987 states and 5652 transitions. [2020-12-23 10:59:44,455 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 10:59:44,455 INFO L276 IsEmpty]: Start isEmpty. Operand 3987 states and 5652 transitions. [2020-12-23 10:59:44,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-12-23 10:59:44,456 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:59:44,457 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:59:44,457 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-23 10:59:44,457 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:59:44,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:59:44,458 INFO L82 PathProgramCache]: Analyzing trace with hash -2114297975, now seen corresponding path program 1 times [2020-12-23 10:59:44,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:59:44,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045842470] [2020-12-23 10:59:44,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:59:44,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:59:44,547 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 10:59:44,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045842470] [2020-12-23 10:59:44,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:59:44,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:59:44,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129366588] [2020-12-23 10:59:44,548 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 10:59:44,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:59:44,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 10:59:44,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:59:44,549 INFO L87 Difference]: Start difference. First operand 3987 states and 5652 transitions. Second operand 5 states. [2020-12-23 10:59:45,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:59:45,226 INFO L93 Difference]: Finished difference Result 6983 states and 9988 transitions. [2020-12-23 10:59:45,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:59:45,227 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 62 [2020-12-23 10:59:45,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:59:45,253 INFO L225 Difference]: With dead ends: 6983 [2020-12-23 10:59:45,253 INFO L226 Difference]: Without dead ends: 6053 [2020-12-23 10:59:45,257 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:59:45,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6053 states. [2020-12-23 10:59:45,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6053 to 4915. [2020-12-23 10:59:45,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4915 states. [2020-12-23 10:59:45,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4915 states to 4915 states and 6988 transitions. [2020-12-23 10:59:45,809 INFO L78 Accepts]: Start accepts. Automaton has 4915 states and 6988 transitions. Word has length 62 [2020-12-23 10:59:45,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:59:45,809 INFO L481 AbstractCegarLoop]: Abstraction has 4915 states and 6988 transitions. [2020-12-23 10:59:45,809 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 10:59:45,810 INFO L276 IsEmpty]: Start isEmpty. Operand 4915 states and 6988 transitions. [2020-12-23 10:59:45,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-23 10:59:45,811 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:59:45,811 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:59:45,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-23 10:59:45,812 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:59:45,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:59:45,812 INFO L82 PathProgramCache]: Analyzing trace with hash -344216809, now seen corresponding path program 1 times [2020-12-23 10:59:45,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:59:45,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794977197] [2020-12-23 10:59:45,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:59:45,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:59:45,857 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:59:45,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794977197] [2020-12-23 10:59:45,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:59:45,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:59:45,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593106845] [2020-12-23 10:59:45,858 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:59:45,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:59:45,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:59:45,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:59:45,860 INFO L87 Difference]: Start difference. First operand 4915 states and 6988 transitions. Second operand 3 states. [2020-12-23 10:59:46,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:59:46,349 INFO L93 Difference]: Finished difference Result 9121 states and 13033 transitions. [2020-12-23 10:59:46,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:59:46,350 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2020-12-23 10:59:46,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:59:46,371 INFO L225 Difference]: With dead ends: 9121 [2020-12-23 10:59:46,371 INFO L226 Difference]: Without dead ends: 4227 [2020-12-23 10:59:46,379 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:59:46,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4227 states. [2020-12-23 10:59:46,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4227 to 4225. [2020-12-23 10:59:46,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4225 states. [2020-12-23 10:59:46,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4225 states to 4225 states and 5992 transitions. [2020-12-23 10:59:46,856 INFO L78 Accepts]: Start accepts. Automaton has 4225 states and 5992 transitions. Word has length 63 [2020-12-23 10:59:46,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:59:46,856 INFO L481 AbstractCegarLoop]: Abstraction has 4225 states and 5992 transitions. [2020-12-23 10:59:46,856 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:59:46,856 INFO L276 IsEmpty]: Start isEmpty. Operand 4225 states and 5992 transitions. [2020-12-23 10:59:46,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-23 10:59:46,858 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:59:46,858 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:59:46,858 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-23 10:59:46,858 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:59:46,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:59:46,859 INFO L82 PathProgramCache]: Analyzing trace with hash -2058333971, now seen corresponding path program 1 times [2020-12-23 10:59:46,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:59:46,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53852034] [2020-12-23 10:59:46,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:59:46,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:59:47,126 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:59:47,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53852034] [2020-12-23 10:59:47,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71472171] [2020-12-23 10:59:47,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 10:59:47,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:59:47,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-23 10:59:47,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 10:59:47,654 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 10:59:47,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 10:59:47,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4] total 12 [2020-12-23 10:59:47,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261716509] [2020-12-23 10:59:47,657 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-23 10:59:47,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:59:47,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-23 10:59:47,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-12-23 10:59:47,658 INFO L87 Difference]: Start difference. First operand 4225 states and 5992 transitions. Second operand 12 states. [2020-12-23 10:59:53,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:59:53,577 INFO L93 Difference]: Finished difference Result 28447 states and 39447 transitions. [2020-12-23 10:59:53,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2020-12-23 10:59:53,578 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 63 [2020-12-23 10:59:53,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:59:53,640 INFO L225 Difference]: With dead ends: 28447 [2020-12-23 10:59:53,640 INFO L226 Difference]: Without dead ends: 24257 [2020-12-23 10:59:53,654 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1157 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=724, Invalid=2816, Unknown=0, NotChecked=0, Total=3540 [2020-12-23 10:59:53,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24257 states. [2020-12-23 10:59:55,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24257 to 11713. [2020-12-23 10:59:55,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11713 states. [2020-12-23 10:59:55,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11713 states to 11713 states and 15904 transitions. [2020-12-23 10:59:55,277 INFO L78 Accepts]: Start accepts. Automaton has 11713 states and 15904 transitions. Word has length 63 [2020-12-23 10:59:55,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:59:55,277 INFO L481 AbstractCegarLoop]: Abstraction has 11713 states and 15904 transitions. [2020-12-23 10:59:55,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-23 10:59:55,277 INFO L276 IsEmpty]: Start isEmpty. Operand 11713 states and 15904 transitions. [2020-12-23 10:59:55,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-23 10:59:55,279 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:59:55,279 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:59:55,493 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-12-23 10:59:55,494 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:59:55,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:59:55,495 INFO L82 PathProgramCache]: Analyzing trace with hash 985811417, now seen corresponding path program 1 times [2020-12-23 10:59:55,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:59:55,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037737696] [2020-12-23 10:59:55,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:59:55,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:59:55,701 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:59:55,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037737696] [2020-12-23 10:59:55,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927336663] [2020-12-23 10:59:55,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 10:59:55,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:59:55,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 24 conjunts are in the unsatisfiable core [2020-12-23 10:59:55,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 10:59:56,051 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-23 10:59:56,254 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 36 [2020-12-23 10:59:56,723 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:59:56,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 10:59:56,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12] total 20 [2020-12-23 10:59:56,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851622151] [2020-12-23 10:59:56,724 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-12-23 10:59:56,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:59:56,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-12-23 10:59:56,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2020-12-23 10:59:56,726 INFO L87 Difference]: Start difference. First operand 11713 states and 15904 transitions. Second operand 20 states. [2020-12-23 10:59:57,280 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-12-23 10:59:57,624 WARN L197 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2020-12-23 10:59:57,790 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-12-23 10:59:58,129 WARN L197 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2020-12-23 10:59:58,572 WARN L197 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 98 [2020-12-23 10:59:58,779 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-12-23 10:59:59,295 WARN L197 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 115 [2020-12-23 10:59:59,561 WARN L197 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-12-23 11:00:00,134 WARN L197 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 115 [2020-12-23 11:00:00,717 WARN L197 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 109 [2020-12-23 11:00:01,014 WARN L197 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-12-23 11:00:01,618 WARN L197 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 103 [2020-12-23 11:00:02,150 WARN L197 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 109 [2020-12-23 11:00:02,672 WARN L197 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 109 [2020-12-23 11:00:03,298 WARN L197 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 115 [2020-12-23 11:00:03,579 WARN L197 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-12-23 11:00:03,818 WARN L197 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-12-23 11:00:04,272 WARN L197 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 97 [2020-12-23 11:00:04,795 WARN L197 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 103 [2020-12-23 11:00:05,064 WARN L197 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-23 11:00:05,352 WARN L197 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-23 11:00:05,706 WARN L197 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-12-23 11:00:06,009 WARN L197 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-12-23 11:00:06,722 WARN L197 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 117 [2020-12-23 11:00:07,357 WARN L197 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 105 [2020-12-23 11:00:07,962 WARN L197 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 123 [2020-12-23 11:00:08,494 WARN L197 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 111 [2020-12-23 11:00:08,790 WARN L197 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-12-23 11:00:09,115 WARN L197 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-12-23 11:00:09,708 WARN L197 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 117 [2020-12-23 11:00:10,430 WARN L197 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 123 [2020-12-23 11:00:10,768 WARN L197 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-12-23 11:00:11,096 WARN L197 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-12-23 11:00:11,707 WARN L197 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-12-23 11:00:12,085 WARN L197 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-12-23 11:00:12,669 WARN L197 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 106 [2020-12-23 11:00:13,346 WARN L197 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 112 [2020-12-23 11:00:14,242 WARN L197 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 114 [2020-12-23 11:00:15,004 WARN L197 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 120 [2020-12-23 11:00:15,965 WARN L197 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-12-23 11:00:16,293 WARN L197 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-23 11:00:16,596 WARN L197 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-12-23 11:00:16,857 WARN L197 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-12-23 11:00:17,208 WARN L197 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-23 11:00:17,615 WARN L197 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-12-23 11:00:18,289 WARN L197 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 118 [2020-12-23 11:00:18,594 WARN L197 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-12-23 11:00:18,906 WARN L197 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-23 11:00:19,238 WARN L197 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-12-23 11:00:19,514 WARN L197 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-12-23 11:00:19,861 WARN L197 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-12-23 11:00:20,212 WARN L197 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-12-23 11:00:20,577 WARN L197 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-12-23 11:00:20,945 WARN L197 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-12-23 11:00:21,692 WARN L197 SmtUtils]: Spent 660.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 126 [2020-12-23 11:00:22,054 WARN L197 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-12-23 11:00:22,740 WARN L197 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 106 [2020-12-23 11:00:23,191 WARN L197 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-12-23 11:00:23,616 WARN L197 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-12-23 11:00:24,051 WARN L197 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-12-23 11:00:24,406 WARN L197 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-12-23 11:00:25,177 WARN L197 SmtUtils]: Spent 697.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 123 [2020-12-23 11:00:25,851 WARN L197 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 109 [2020-12-23 11:00:26,573 WARN L197 SmtUtils]: Spent 654.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 114 [2020-12-23 11:00:27,286 WARN L197 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 103 [2020-12-23 11:00:27,741 WARN L197 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-12-23 11:00:28,031 WARN L197 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-12-23 11:00:28,835 WARN L197 SmtUtils]: Spent 714.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 117 [2020-12-23 11:00:29,613 WARN L197 SmtUtils]: Spent 679.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 111 [2020-12-23 11:00:30,271 WARN L197 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 97 [2020-12-23 11:00:30,605 WARN L197 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-12-23 11:00:31,012 WARN L197 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-12-23 11:00:31,412 WARN L197 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-12-23 11:00:31,806 WARN L197 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-12-23 11:00:32,269 WARN L197 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-12-23 11:00:33,045 WARN L197 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 105 [2020-12-23 11:00:33,492 WARN L197 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-12-23 11:00:33,820 WARN L197 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-12-23 11:00:34,191 WARN L197 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-12-23 11:00:34,651 WARN L197 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-12-23 11:00:34,981 WARN L197 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-12-23 11:00:35,588 WARN L197 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-12-23 11:00:36,083 WARN L197 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-12-23 11:00:36,737 WARN L197 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-12-23 11:00:36,989 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2020-12-23 11:00:37,526 WARN L197 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2020-12-23 11:00:37,995 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-12-23 11:00:38,632 WARN L197 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2020-12-23 11:00:38,896 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-12-23 11:00:39,209 WARN L197 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-12-23 11:00:39,656 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-12-23 11:00:40,092 WARN L197 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-12-23 11:00:41,519 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2020-12-23 11:00:42,432 WARN L197 SmtUtils]: Spent 772.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 106 [2020-12-23 11:00:42,927 WARN L197 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2020-12-23 11:00:43,430 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-12-23 11:00:44,456 WARN L197 SmtUtils]: Spent 932.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 118 [2020-12-23 11:00:45,444 WARN L197 SmtUtils]: Spent 910.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 114 [2020-12-23 11:00:46,091 WARN L197 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2020-12-23 11:00:47,046 WARN L197 SmtUtils]: Spent 889.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 103 [2020-12-23 11:00:47,275 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-12-23 11:00:47,603 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-12-23 11:00:48,676 WARN L197 SmtUtils]: Spent 957.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 126 [2020-12-23 11:00:49,588 WARN L197 SmtUtils]: Spent 797.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 111 [2020-12-23 11:00:49,941 WARN L197 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-12-23 11:00:50,407 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-12-23 11:00:52,049 WARN L197 SmtUtils]: Spent 748.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 112 [2020-12-23 11:00:53,273 WARN L197 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 120 [2020-12-23 11:00:54,115 WARN L197 SmtUtils]: Spent 714.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 100 [2020-12-23 11:00:55,130 WARN L197 SmtUtils]: Spent 885.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 117 [2020-12-23 11:00:55,604 WARN L197 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-12-23 11:00:56,789 WARN L197 SmtUtils]: Spent 931.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 108 [2020-12-23 11:00:58,281 WARN L197 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 119 DAG size of output: 111 [2020-12-23 11:00:59,081 WARN L197 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2020-12-23 11:01:00,301 WARN L197 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 105 DAG size of output: 97 [2020-12-23 11:01:01,727 WARN L197 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 105 DAG size of output: 97 [2020-12-23 11:01:02,582 WARN L197 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2020-12-23 11:01:03,940 WARN L197 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 113 DAG size of output: 105 [2020-12-23 11:01:05,447 WARN L197 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 113 DAG size of output: 105 [2020-12-23 11:01:06,759 WARN L197 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 99 DAG size of output: 91 [2020-12-23 11:01:07,721 WARN L197 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2020-12-23 11:01:08,365 WARN L197 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-12-23 11:01:08,890 WARN L197 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-12-23 11:01:10,179 WARN L197 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 107 DAG size of output: 99 [2020-12-23 11:01:11,112 WARN L197 SmtUtils]: Spent 663.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2020-12-23 11:01:11,591 WARN L197 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-12-23 11:01:12,124 WARN L197 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-12-23 11:01:12,820 WARN L197 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2020-12-23 11:01:13,260 WARN L197 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2020-12-23 11:01:14,067 WARN L197 SmtUtils]: Spent 686.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2020-12-23 11:01:14,665 WARN L197 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-23 11:01:15,061 WARN L197 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-12-23 11:01:15,642 WARN L197 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-12-23 11:01:16,502 WARN L197 SmtUtils]: Spent 671.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2020-12-23 11:01:17,168 WARN L197 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-12-23 11:01:17,780 WARN L197 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2020-12-23 11:01:18,648 WARN L197 SmtUtils]: Spent 736.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-12-23 11:01:19,052 WARN L197 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 41 [2020-12-23 11:01:19,835 WARN L197 SmtUtils]: Spent 625.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2020-12-23 11:01:20,058 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2020-12-23 11:01:20,475 WARN L197 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-12-23 11:01:21,034 WARN L197 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-12-23 11:01:21,497 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-12-23 11:01:22,044 WARN L197 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-12-23 11:01:23,053 WARN L197 SmtUtils]: Spent 664.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2020-12-23 11:01:23,771 WARN L197 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2020-12-23 11:01:24,764 WARN L197 SmtUtils]: Spent 808.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2020-12-23 11:01:25,219 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-12-23 11:01:25,750 WARN L197 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-12-23 11:01:26,493 WARN L197 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-12-23 11:01:27,036 WARN L197 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-12-23 11:01:27,790 WARN L197 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2020-12-23 11:01:28,631 WARN L197 SmtUtils]: Spent 750.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2020-12-23 11:01:29,059 WARN L197 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-12-23 11:01:29,611 WARN L197 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2020-12-23 11:01:30,432 WARN L197 SmtUtils]: Spent 723.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2020-12-23 11:01:31,056 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2020-12-23 11:01:31,650 WARN L197 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-23 11:01:32,040 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-12-23 11:01:32,505 WARN L197 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-12-23 11:01:33,921 WARN L197 SmtUtils]: Spent 825.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-12-23 11:01:35,289 WARN L197 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 105 DAG size of output: 97 [2020-12-23 11:01:35,577 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-12-23 11:01:35,980 WARN L197 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-23 11:01:36,952 WARN L197 SmtUtils]: Spent 827.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2020-12-23 11:01:38,167 WARN L197 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 99 DAG size of output: 91 [2020-12-23 11:01:38,702 WARN L197 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-12-23 11:01:39,263 WARN L197 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-12-23 11:01:39,984 WARN L197 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-12-23 11:01:41,140 WARN L197 SmtUtils]: Spent 515.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-12-23 11:01:41,856 WARN L197 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-12-23 11:01:42,213 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2020-12-23 11:01:42,653 WARN L197 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-12-23 11:01:43,734 WARN L197 SmtUtils]: Spent 638.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2020-12-23 11:01:44,672 WARN L197 SmtUtils]: Spent 655.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2020-12-23 11:01:45,611 WARN L197 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-23 11:01:46,326 WARN L197 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-12-23 11:01:48,096 WARN L197 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 108 DAG size of output: 100 [2020-12-23 11:01:49,212 WARN L197 SmtUtils]: Spent 805.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2020-12-23 11:01:50,369 WARN L197 SmtUtils]: Spent 742.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2020-12-23 11:01:51,773 WARN L197 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 102 DAG size of output: 94 [2020-12-23 11:01:52,485 WARN L197 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2020-12-23 11:01:53,296 WARN L197 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2020-12-23 11:01:53,837 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-12-23 11:01:55,764 WARN L197 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 116 DAG size of output: 108 [2020-12-23 11:01:58,010 WARN L197 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 110 DAG size of output: 102 [2020-12-23 11:01:59,279 WARN L197 SmtUtils]: Spent 954.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2020-12-23 11:01:59,582 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-12-23 11:02:00,697 WARN L197 SmtUtils]: Spent 885.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2020-12-23 11:02:01,493 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2020-12-23 11:02:04,790 WARN L197 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-12-23 11:02:05,503 WARN L197 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-12-23 11:02:06,455 WARN L197 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-12-23 11:02:07,402 WARN L197 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-12-23 11:02:07,895 WARN L197 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-12-23 11:02:08,382 WARN L197 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-12-23 11:02:09,942 WARN L197 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 108 DAG size of output: 100 [2020-12-23 11:02:11,524 WARN L197 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 102 DAG size of output: 94 [2020-12-23 11:02:12,260 WARN L197 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-12-23 11:02:12,544 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-12-23 11:02:13,136 WARN L197 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-12-23 11:02:14,248 WARN L197 SmtUtils]: Spent 923.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2020-12-23 11:02:14,762 WARN L197 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-23 11:02:15,046 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2020-12-23 11:02:15,529 WARN L197 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-12-23 11:02:16,081 WARN L197 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-12-23 11:02:17,057 WARN L197 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-12-23 11:02:17,981 WARN L197 SmtUtils]: Spent 687.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-12-23 11:02:19,051 WARN L197 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-12-23 11:02:20,044 WARN L197 SmtUtils]: Spent 827.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2020-12-23 11:02:20,925 WARN L197 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-12-23 11:02:21,692 WARN L197 SmtUtils]: Spent 477.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-23 11:02:22,388 WARN L197 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-12-23 11:02:23,130 WARN L197 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2020-12-23 11:02:23,703 WARN L197 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-12-23 11:02:24,762 WARN L197 SmtUtils]: Spent 937.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2020-12-23 11:02:25,811 WARN L197 SmtUtils]: Spent 868.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2020-12-23 11:02:26,371 WARN L197 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-23 11:02:27,408 WARN L197 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-23 11:02:28,370 WARN L197 SmtUtils]: Spent 811.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-12-23 11:02:29,138 WARN L197 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-12-23 11:02:30,284 WARN L197 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-12-23 11:02:31,468 WARN L197 SmtUtils]: Spent 872.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2020-12-23 11:02:32,581 WARN L197 SmtUtils]: Spent 930.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-12-23 11:02:33,860 WARN L197 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-12-23 11:02:34,483 WARN L197 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-12-23 11:02:35,740 WARN L197 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 117 [2020-12-23 11:02:36,705 WARN L197 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-12-23 11:02:37,622 WARN L197 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-12-23 11:02:38,280 WARN L197 SmtUtils]: Spent 509.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-12-23 11:02:39,535 WARN L197 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-12-23 11:02:39,928 WARN L197 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-12-23 11:02:40,430 WARN L197 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-23 11:02:41,539 WARN L197 SmtUtils]: Spent 837.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-12-23 11:02:42,927 WARN L197 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2020-12-23 11:02:43,761 WARN L197 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2020-12-23 11:02:44,103 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2020-12-23 11:02:44,823 WARN L197 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-12-23 11:02:46,281 WARN L197 SmtUtils]: Spent 992.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2020-12-23 11:02:46,736 WARN L197 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-12-23 11:02:47,979 WARN L197 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2020-12-23 11:02:48,566 WARN L197 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-23 11:02:48,894 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-12-23 11:02:49,586 WARN L197 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2020-12-23 11:02:50,695 WARN L197 SmtUtils]: Spent 974.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2020-12-23 11:02:51,288 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 24 [2020-12-23 11:02:51,987 WARN L197 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2020-12-23 11:02:52,660 WARN L197 SmtUtils]: Spent 498.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-12-23 11:02:53,245 WARN L197 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2020-12-23 11:02:53,612 WARN L197 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-12-23 11:02:54,173 WARN L197 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-12-23 11:02:55,284 WARN L197 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2020-12-23 11:02:56,652 WARN L197 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-12-23 11:02:57,353 WARN L197 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-12-23 11:02:58,025 WARN L197 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-12-23 11:03:01,489 WARN L197 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2020-12-23 11:03:03,612 WARN L197 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 108 DAG size of output: 100 [2020-12-23 11:03:04,794 WARN L197 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2020-12-23 11:03:05,918 WARN L197 SmtUtils]: Spent 950.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2020-12-23 11:03:06,476 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 24 [2020-12-23 11:03:12,677 WARN L197 SmtUtils]: Spent 980.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2020-12-23 11:03:14,445 WARN L197 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 102 DAG size of output: 94 [2020-12-23 11:03:15,741 WARN L197 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2020-12-23 11:03:16,880 WARN L197 SmtUtils]: Spent 905.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2020-12-23 11:03:17,934 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 24 [2020-12-23 11:03:18,788 WARN L197 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2020-12-23 11:03:20,169 WARN L197 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2020-12-23 11:03:21,430 WARN L197 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-12-23 11:03:23,488 WARN L197 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2020-12-23 11:03:24,760 WARN L197 SmtUtils]: Spent 655.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2020-12-23 11:03:25,825 WARN L197 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2020-12-23 11:03:27,926 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 21 [2020-12-23 11:03:31,852 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 27 [2020-12-23 11:03:35,912 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 27 [2020-12-23 11:03:37,920 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 20 [2020-12-23 11:03:40,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:03:40,728 INFO L93 Difference]: Finished difference Result 195900 states and 267885 transitions. [2020-12-23 11:03:40,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 301 states. [2020-12-23 11:03:40,733 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 64 [2020-12-23 11:03:40,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:03:41,451 INFO L225 Difference]: With dead ends: 195900 [2020-12-23 11:03:41,451 INFO L226 Difference]: Without dead ends: 185678 [2020-12-23 11:03:41,592 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 316 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48526 ImplicationChecksByTransitivity, 176.8s TimeCoverageRelationStatistics Valid=12880, Invalid=87926, Unknown=0, NotChecked=0, Total=100806 [2020-12-23 11:03:41,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185678 states. [2020-12-23 11:03:54,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185678 to 57556. [2020-12-23 11:03:54,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57556 states. [2020-12-23 11:03:54,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57556 states to 57556 states and 79340 transitions. [2020-12-23 11:03:54,835 INFO L78 Accepts]: Start accepts. Automaton has 57556 states and 79340 transitions. Word has length 64 [2020-12-23 11:03:54,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:03:54,835 INFO L481 AbstractCegarLoop]: Abstraction has 57556 states and 79340 transitions. [2020-12-23 11:03:54,835 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-12-23 11:03:54,835 INFO L276 IsEmpty]: Start isEmpty. Operand 57556 states and 79340 transitions. [2020-12-23 11:03:54,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-23 11:03:54,837 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:03:54,838 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:03:55,052 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-12-23 11:03:55,053 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:03:55,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:03:55,054 INFO L82 PathProgramCache]: Analyzing trace with hash 2139757523, now seen corresponding path program 1 times [2020-12-23 11:03:55,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:03:55,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391607478] [2020-12-23 11:03:55,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:03:55,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:03:55,531 WARN L197 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 18 [2020-12-23 11:03:55,669 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:03:55,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391607478] [2020-12-23 11:03:55,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244224218] [2020-12-23 11:03:55,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 11:03:55,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:03:55,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 37 conjunts are in the unsatisfiable core [2020-12-23 11:03:55,798 INFO L286 TraceCheckSpWp]: Computing forward predicates...