/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 20:51:10,042 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 20:51:10,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 20:51:10,094 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 20:51:10,094 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 20:51:10,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 20:51:10,098 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 20:51:10,100 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 20:51:10,102 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 20:51:10,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 20:51:10,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 20:51:10,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 20:51:10,107 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 20:51:10,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 20:51:10,110 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 20:51:10,111 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 20:51:10,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 20:51:10,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 20:51:10,128 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 20:51:10,134 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 20:51:10,136 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 20:51:10,137 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 20:51:10,138 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 20:51:10,144 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 20:51:10,147 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 20:51:10,148 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 20:51:10,148 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 20:51:10,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 20:51:10,152 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 20:51:10,154 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 20:51:10,154 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 20:51:10,155 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 20:51:10,155 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 20:51:10,156 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 20:51:10,157 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 20:51:10,158 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 20:51:10,158 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 20:51:10,159 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 20:51:10,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 20:51:10,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 20:51:10,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 20:51:10,162 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 20:51:10,201 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 20:51:10,202 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 20:51:10,203 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 20:51:10,203 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 20:51:10,203 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 20:51:10,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 20:51:10,204 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 20:51:10,204 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 20:51:10,204 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 20:51:10,204 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 20:51:10,205 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 20:51:10,205 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 20:51:10,205 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 20:51:10,205 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 20:51:10,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 20:51:10,206 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 20:51:10,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 20:51:10,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 20:51:10,206 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 20:51:10,206 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 20:51:10,207 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 20:51:10,207 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 20:51:10,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 20:51:10,207 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 20:51:10,207 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 20:51:10,208 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 20:51:10,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 20:51:10,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 20:51:10,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 20:51:10,606 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 20:51:10,607 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 20:51:10,608 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2021-01-06 20:51:10,698 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/7df35df59/68f6256258b34616aa9efc2c9950d1f7/FLAGb8a811bfc [2021-01-06 20:51:11,371 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 20:51:11,372 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2021-01-06 20:51:11,396 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/7df35df59/68f6256258b34616aa9efc2c9950d1f7/FLAGb8a811bfc [2021-01-06 20:51:11,661 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/7df35df59/68f6256258b34616aa9efc2c9950d1f7 [2021-01-06 20:51:11,664 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 20:51:11,666 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 20:51:11,668 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 20:51:11,668 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 20:51:11,672 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 20:51:11,673 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 08:51:11" (1/1) ... [2021-01-06 20:51:11,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8da0354 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:51:11, skipping insertion in model container [2021-01-06 20:51:11,675 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 08:51:11" (1/1) ... [2021-01-06 20:51:11,692 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 20:51:11,769 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_182153~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_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[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~0,] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_182348~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~0,] [2021-01-06 20:51:12,022 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[6995,7008] 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[~st6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] [2021-01-06 20:51:12,069 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 20:51:12,093 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_182153~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_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[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~0,] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_182348~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~0,] [2021-01-06 20:51:12,153 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[6995,7008] 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[~st6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] [2021-01-06 20:51:12,190 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 20:51:12,219 INFO L208 MainTranslator]: Completed translation [2021-01-06 20:51:12,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:51:12 WrapperNode [2021-01-06 20:51:12,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 20:51:12,229 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 20:51:12,230 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 20:51:12,230 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 20:51:12,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:51:12" (1/1) ... [2021-01-06 20:51:12,257 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:51:12" (1/1) ... [2021-01-06 20:51:12,321 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 20:51:12,323 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 20:51:12,323 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 20:51:12,323 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 20:51:12,333 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:51:12" (1/1) ... [2021-01-06 20:51:12,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:51:12" (1/1) ... [2021-01-06 20:51:12,349 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:51:12" (1/1) ... [2021-01-06 20:51:12,349 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:51:12" (1/1) ... [2021-01-06 20:51:12,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:51:12" (1/1) ... [2021-01-06 20:51:12,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:51:12" (1/1) ... [2021-01-06 20:51:12,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:51:12" (1/1) ... [2021-01-06 20:51:12,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 20:51:12,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 20:51:12,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 20:51:12,407 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 20:51:12,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:51:12" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 20:51:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 20:51:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 20:51:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 20:51:12,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 20:51:13,549 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 20:51:13,550 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-01-06 20:51:13,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 08:51:13 BoogieIcfgContainer [2021-01-06 20:51:13,553 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 20:51:13,554 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 20:51:13,555 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 20:51:13,559 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 20:51:13,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 08:51:11" (1/3) ... [2021-01-06 20:51:13,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65b8da5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 08:51:13, skipping insertion in model container [2021-01-06 20:51:13,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:51:12" (2/3) ... [2021-01-06 20:51:13,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65b8da5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 08:51:13, skipping insertion in model container [2021-01-06 20:51:13,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 08:51:13" (3/3) ... [2021-01-06 20:51:13,563 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2021-01-06 20:51:13,569 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 20:51:13,575 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 20:51:13,595 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-01-06 20:51:13,624 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 20:51:13,624 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 20:51:13,624 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 20:51:13,624 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 20:51:13,625 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 20:51:13,625 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 20:51:13,625 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 20:51:13,625 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 20:51:13,653 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2021-01-06 20:51:13,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-01-06 20:51:13,665 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:51:13,667 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:51:13,667 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:51:13,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:51:13,674 INFO L82 PathProgramCache]: Analyzing trace with hash 2011282842, now seen corresponding path program 1 times [2021-01-06 20:51:13,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:51:13,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692822149] [2021-01-06 20:51:13,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:51:13,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:51:14,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:51:14,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692822149] [2021-01-06 20:51:14,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:51:14,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:51:14,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456797075] [2021-01-06 20:51:14,177 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:51:14,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:51:14,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:51:14,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:51:14,200 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 3 states. [2021-01-06 20:51:14,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:51:14,298 INFO L93 Difference]: Finished difference Result 391 states and 633 transitions. [2021-01-06 20:51:14,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:51:14,301 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2021-01-06 20:51:14,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:51:14,328 INFO L225 Difference]: With dead ends: 391 [2021-01-06 20:51:14,329 INFO L226 Difference]: Without dead ends: 264 [2021-01-06 20:51:14,334 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:51:14,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2021-01-06 20:51:14,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 262. [2021-01-06 20:51:14,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2021-01-06 20:51:14,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 392 transitions. [2021-01-06 20:51:14,433 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 392 transitions. Word has length 74 [2021-01-06 20:51:14,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:51:14,434 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 392 transitions. [2021-01-06 20:51:14,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:51:14,435 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 392 transitions. [2021-01-06 20:51:14,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-01-06 20:51:14,438 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:51:14,439 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:51:14,439 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 20:51:14,439 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:51:14,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:51:14,440 INFO L82 PathProgramCache]: Analyzing trace with hash -141824057, now seen corresponding path program 1 times [2021-01-06 20:51:14,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:51:14,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140240312] [2021-01-06 20:51:14,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:51:14,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:51:14,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:51:14,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140240312] [2021-01-06 20:51:14,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:51:14,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:51:14,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855819592] [2021-01-06 20:51:14,630 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:51:14,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:51:14,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:51:14,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:51:14,632 INFO L87 Difference]: Start difference. First operand 262 states and 392 transitions. Second operand 3 states. [2021-01-06 20:51:14,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:51:14,711 INFO L93 Difference]: Finished difference Result 666 states and 1036 transitions. [2021-01-06 20:51:14,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:51:14,718 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2021-01-06 20:51:14,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:51:14,727 INFO L225 Difference]: With dead ends: 666 [2021-01-06 20:51:14,727 INFO L226 Difference]: Without dead ends: 448 [2021-01-06 20:51:14,730 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:51:14,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2021-01-06 20:51:14,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 446. [2021-01-06 20:51:14,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2021-01-06 20:51:14,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 685 transitions. [2021-01-06 20:51:14,798 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 685 transitions. Word has length 75 [2021-01-06 20:51:14,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:51:14,801 INFO L481 AbstractCegarLoop]: Abstraction has 446 states and 685 transitions. [2021-01-06 20:51:14,801 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:51:14,801 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 685 transitions. [2021-01-06 20:51:14,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-01-06 20:51:14,811 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:51:14,811 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:51:14,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 20:51:14,812 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:51:14,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:51:14,813 INFO L82 PathProgramCache]: Analyzing trace with hash 890430339, now seen corresponding path program 1 times [2021-01-06 20:51:14,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:51:14,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118234004] [2021-01-06 20:51:14,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:51:14,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:51:14,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:51:14,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118234004] [2021-01-06 20:51:14,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:51:14,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:51:14,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767151158] [2021-01-06 20:51:14,936 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:51:14,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:51:14,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:51:14,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:51:14,938 INFO L87 Difference]: Start difference. First operand 446 states and 685 transitions. Second operand 3 states. [2021-01-06 20:51:15,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:51:15,036 INFO L93 Difference]: Finished difference Result 1186 states and 1863 transitions. [2021-01-06 20:51:15,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:51:15,037 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2021-01-06 20:51:15,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:51:15,045 INFO L225 Difference]: With dead ends: 1186 [2021-01-06 20:51:15,046 INFO L226 Difference]: Without dead ends: 784 [2021-01-06 20:51:15,052 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:51:15,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2021-01-06 20:51:15,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 782. [2021-01-06 20:51:15,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 782 states. [2021-01-06 20:51:15,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1217 transitions. [2021-01-06 20:51:15,130 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1217 transitions. Word has length 76 [2021-01-06 20:51:15,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:51:15,131 INFO L481 AbstractCegarLoop]: Abstraction has 782 states and 1217 transitions. [2021-01-06 20:51:15,131 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:51:15,131 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1217 transitions. [2021-01-06 20:51:15,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-01-06 20:51:15,137 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:51:15,138 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:51:15,138 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 20:51:15,138 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:51:15,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:51:15,141 INFO L82 PathProgramCache]: Analyzing trace with hash -806203398, now seen corresponding path program 1 times [2021-01-06 20:51:15,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:51:15,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832245894] [2021-01-06 20:51:15,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:51:15,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:51:15,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:51:15,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832245894] [2021-01-06 20:51:15,317 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:51:15,317 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:51:15,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311876480] [2021-01-06 20:51:15,319 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:51:15,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:51:15,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:51:15,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:51:15,322 INFO L87 Difference]: Start difference. First operand 782 states and 1217 transitions. Second operand 3 states. [2021-01-06 20:51:15,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:51:15,410 INFO L93 Difference]: Finished difference Result 2130 states and 3355 transitions. [2021-01-06 20:51:15,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:51:15,411 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2021-01-06 20:51:15,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:51:15,422 INFO L225 Difference]: With dead ends: 2130 [2021-01-06 20:51:15,422 INFO L226 Difference]: Without dead ends: 1392 [2021-01-06 20:51:15,425 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:51:15,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2021-01-06 20:51:15,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 1390. [2021-01-06 20:51:15,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1390 states. [2021-01-06 20:51:15,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 2173 transitions. [2021-01-06 20:51:15,506 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 2173 transitions. Word has length 77 [2021-01-06 20:51:15,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:51:15,506 INFO L481 AbstractCegarLoop]: Abstraction has 1390 states and 2173 transitions. [2021-01-06 20:51:15,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:51:15,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 2173 transitions. [2021-01-06 20:51:15,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-01-06 20:51:15,513 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:51:15,513 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:51:15,513 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 20:51:15,513 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:51:15,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:51:15,514 INFO L82 PathProgramCache]: Analyzing trace with hash -904090240, now seen corresponding path program 1 times [2021-01-06 20:51:15,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:51:15,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986392666] [2021-01-06 20:51:15,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:51:15,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:51:15,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:51:15,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986392666] [2021-01-06 20:51:15,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:51:15,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:51:15,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089222710] [2021-01-06 20:51:15,673 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:51:15,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:51:15,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:51:15,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:51:15,677 INFO L87 Difference]: Start difference. First operand 1390 states and 2173 transitions. Second operand 3 states. [2021-01-06 20:51:15,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:51:15,868 INFO L93 Difference]: Finished difference Result 3826 states and 6015 transitions. [2021-01-06 20:51:15,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:51:15,871 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2021-01-06 20:51:15,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:51:15,886 INFO L225 Difference]: With dead ends: 3826 [2021-01-06 20:51:15,886 INFO L226 Difference]: Without dead ends: 2480 [2021-01-06 20:51:15,889 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:51:15,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2480 states. [2021-01-06 20:51:16,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2480 to 2478. [2021-01-06 20:51:16,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2478 states. [2021-01-06 20:51:16,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2478 states to 2478 states and 3869 transitions. [2021-01-06 20:51:16,065 INFO L78 Accepts]: Start accepts. Automaton has 2478 states and 3869 transitions. Word has length 78 [2021-01-06 20:51:16,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:51:16,067 INFO L481 AbstractCegarLoop]: Abstraction has 2478 states and 3869 transitions. [2021-01-06 20:51:16,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:51:16,067 INFO L276 IsEmpty]: Start isEmpty. Operand 2478 states and 3869 transitions. [2021-01-06 20:51:16,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-01-06 20:51:16,069 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:51:16,069 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:51:16,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 20:51:16,070 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:51:16,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:51:16,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1797609537, now seen corresponding path program 1 times [2021-01-06 20:51:16,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:51:16,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091389613] [2021-01-06 20:51:16,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:51:16,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:51:16,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:51:16,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091389613] [2021-01-06 20:51:16,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:51:16,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-06 20:51:16,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262052511] [2021-01-06 20:51:16,414 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 20:51:16,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:51:16,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 20:51:16,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-01-06 20:51:16,415 INFO L87 Difference]: Start difference. First operand 2478 states and 3869 transitions. Second operand 8 states. [2021-01-06 20:51:17,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:51:17,575 INFO L93 Difference]: Finished difference Result 15082 states and 23523 transitions. [2021-01-06 20:51:17,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-06 20:51:17,576 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2021-01-06 20:51:17,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:51:17,645 INFO L225 Difference]: With dead ends: 15082 [2021-01-06 20:51:17,645 INFO L226 Difference]: Without dead ends: 12648 [2021-01-06 20:51:17,655 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-01-06 20:51:17,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12648 states. [2021-01-06 20:51:18,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12648 to 12638. [2021-01-06 20:51:18,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12638 states. [2021-01-06 20:51:18,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12638 states to 12638 states and 19661 transitions. [2021-01-06 20:51:18,653 INFO L78 Accepts]: Start accepts. Automaton has 12638 states and 19661 transitions. Word has length 79 [2021-01-06 20:51:18,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:51:18,653 INFO L481 AbstractCegarLoop]: Abstraction has 12638 states and 19661 transitions. [2021-01-06 20:51:18,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 20:51:18,654 INFO L276 IsEmpty]: Start isEmpty. Operand 12638 states and 19661 transitions. [2021-01-06 20:51:18,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-01-06 20:51:18,655 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:51:18,655 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:51:18,656 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-06 20:51:18,656 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:51:18,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:51:18,662 INFO L82 PathProgramCache]: Analyzing trace with hash -252245181, now seen corresponding path program 1 times [2021-01-06 20:51:18,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:51:18,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282848726] [2021-01-06 20:51:18,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:51:18,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:51:18,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:51:18,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282848726] [2021-01-06 20:51:18,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:51:18,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:51:18,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239323934] [2021-01-06 20:51:18,765 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:51:18,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:51:18,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:51:18,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:51:18,767 INFO L87 Difference]: Start difference. First operand 12638 states and 19661 transitions. Second operand 3 states. [2021-01-06 20:51:20,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:51:20,124 INFO L93 Difference]: Finished difference Result 34530 states and 53583 transitions. [2021-01-06 20:51:20,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:51:20,124 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2021-01-06 20:51:20,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:51:20,221 INFO L225 Difference]: With dead ends: 34530 [2021-01-06 20:51:20,221 INFO L226 Difference]: Without dead ends: 21936 [2021-01-06 20:51:20,242 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:51:20,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21936 states. [2021-01-06 20:51:21,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21936 to 21934. [2021-01-06 20:51:21,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21934 states. [2021-01-06 20:51:21,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21934 states to 21934 states and 33773 transitions. [2021-01-06 20:51:21,925 INFO L78 Accepts]: Start accepts. Automaton has 21934 states and 33773 transitions. Word has length 80 [2021-01-06 20:51:21,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:51:21,926 INFO L481 AbstractCegarLoop]: Abstraction has 21934 states and 33773 transitions. [2021-01-06 20:51:21,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:51:21,926 INFO L276 IsEmpty]: Start isEmpty. Operand 21934 states and 33773 transitions. [2021-01-06 20:51:21,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-01-06 20:51:21,927 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:51:21,928 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:51:21,928 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-06 20:51:21,928 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:51:21,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:51:21,929 INFO L82 PathProgramCache]: Analyzing trace with hash -41800598, now seen corresponding path program 1 times [2021-01-06 20:51:21,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:51:21,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681578056] [2021-01-06 20:51:21,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:51:21,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:51:22,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:51:22,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681578056] [2021-01-06 20:51:22,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:51:22,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 20:51:22,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554269066] [2021-01-06 20:51:22,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 20:51:22,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:51:22,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 20:51:22,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-01-06 20:51:22,073 INFO L87 Difference]: Start difference. First operand 21934 states and 33773 transitions. Second operand 6 states. [2021-01-06 20:51:26,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:51:26,261 INFO L93 Difference]: Finished difference Result 83284 states and 128144 transitions. [2021-01-06 20:51:26,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 20:51:26,262 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 81 [2021-01-06 20:51:26,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:51:26,438 INFO L225 Difference]: With dead ends: 83284 [2021-01-06 20:51:26,439 INFO L226 Difference]: Without dead ends: 61394 [2021-01-06 20:51:26,486 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-01-06 20:51:26,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61394 states. [2021-01-06 20:51:30,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61394 to 61390. [2021-01-06 20:51:30,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61390 states. [2021-01-06 20:51:30,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61390 states to 61390 states and 94061 transitions. [2021-01-06 20:51:30,110 INFO L78 Accepts]: Start accepts. Automaton has 61390 states and 94061 transitions. Word has length 81 [2021-01-06 20:51:30,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:51:30,110 INFO L481 AbstractCegarLoop]: Abstraction has 61390 states and 94061 transitions. [2021-01-06 20:51:30,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 20:51:30,111 INFO L276 IsEmpty]: Start isEmpty. Operand 61390 states and 94061 transitions. [2021-01-06 20:51:30,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-01-06 20:51:30,112 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:51:30,112 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:51:30,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-06 20:51:30,112 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:51:30,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:51:30,113 INFO L82 PathProgramCache]: Analyzing trace with hash -198748465, now seen corresponding path program 1 times [2021-01-06 20:51:30,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:51:30,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261399693] [2021-01-06 20:51:30,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:51:30,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:51:30,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:51:30,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261399693] [2021-01-06 20:51:30,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:51:30,253 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-06 20:51:30,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167177284] [2021-01-06 20:51:30,254 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 20:51:30,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:51:30,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 20:51:30,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-01-06 20:51:30,255 INFO L87 Difference]: Start difference. First operand 61390 states and 94061 transitions. Second operand 8 states. [2021-01-06 20:51:43,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:51:43,786 INFO L93 Difference]: Finished difference Result 354972 states and 544660 transitions. [2021-01-06 20:51:43,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-06 20:51:43,786 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 81 [2021-01-06 20:51:43,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:51:44,800 INFO L225 Difference]: With dead ends: 354972 [2021-01-06 20:51:44,800 INFO L226 Difference]: Without dead ends: 293626 [2021-01-06 20:51:44,968 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-01-06 20:51:45,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293626 states. [2021-01-06 20:51:54,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293626 to 122734. [2021-01-06 20:51:54,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122734 states. [2021-01-06 20:51:54,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122734 states to 122734 states and 185901 transitions. [2021-01-06 20:51:54,806 INFO L78 Accepts]: Start accepts. Automaton has 122734 states and 185901 transitions. Word has length 81 [2021-01-06 20:51:54,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:51:54,807 INFO L481 AbstractCegarLoop]: Abstraction has 122734 states and 185901 transitions. [2021-01-06 20:51:54,807 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 20:51:54,807 INFO L276 IsEmpty]: Start isEmpty. Operand 122734 states and 185901 transitions. [2021-01-06 20:51:54,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-01-06 20:51:54,808 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:51:54,808 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:51:54,809 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-06 20:51:54,809 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:51:54,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:51:54,810 INFO L82 PathProgramCache]: Analyzing trace with hash -1885691313, now seen corresponding path program 1 times [2021-01-06 20:51:54,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:51:54,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647408553] [2021-01-06 20:51:54,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:51:55,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:51:55,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:51:55,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647408553] [2021-01-06 20:51:55,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:51:55,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 20:51:55,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952622884] [2021-01-06 20:51:55,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 20:51:55,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:51:55,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 20:51:55,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 20:51:55,175 INFO L87 Difference]: Start difference. First operand 122734 states and 185901 transitions. Second operand 5 states. [2021-01-06 20:52:09,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:52:09,396 INFO L93 Difference]: Finished difference Result 249776 states and 376110 transitions. [2021-01-06 20:52:09,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 20:52:09,398 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 82 [2021-01-06 20:52:09,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:52:10,050 INFO L225 Difference]: With dead ends: 249776 [2021-01-06 20:52:10,051 INFO L226 Difference]: Without dead ends: 249774 [2021-01-06 20:52:10,106 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-01-06 20:52:10,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249774 states. [2021-01-06 20:52:20,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249774 to 127086. [2021-01-06 20:52:20,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127086 states. [2021-01-06 20:52:20,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127086 states to 127086 states and 190253 transitions. [2021-01-06 20:52:20,415 INFO L78 Accepts]: Start accepts. Automaton has 127086 states and 190253 transitions. Word has length 82 [2021-01-06 20:52:20,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:52:20,416 INFO L481 AbstractCegarLoop]: Abstraction has 127086 states and 190253 transitions. [2021-01-06 20:52:20,416 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 20:52:20,416 INFO L276 IsEmpty]: Start isEmpty. Operand 127086 states and 190253 transitions. [2021-01-06 20:52:20,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-01-06 20:52:20,417 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:52:20,418 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:52:20,418 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-06 20:52:20,418 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:52:20,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:52:20,419 INFO L82 PathProgramCache]: Analyzing trace with hash 1683684575, now seen corresponding path program 1 times [2021-01-06 20:52:20,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:52:20,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840033065] [2021-01-06 20:52:20,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:52:20,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:52:20,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:52:20,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840033065] [2021-01-06 20:52:20,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:52:20,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:52:20,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473901761] [2021-01-06 20:52:20,529 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:52:20,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:52:20,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:52:20,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:52:20,532 INFO L87 Difference]: Start difference. First operand 127086 states and 190253 transitions. Second operand 3 states. [2021-01-06 20:52:30,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:52:30,664 INFO L93 Difference]: Finished difference Result 275732 states and 412321 transitions. [2021-01-06 20:52:30,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:52:30,664 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 83 [2021-01-06 20:52:30,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:52:31,079 INFO L225 Difference]: With dead ends: 275732 [2021-01-06 20:52:31,079 INFO L226 Difference]: Without dead ends: 148690 [2021-01-06 20:52:31,175 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:52:31,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148690 states. [2021-01-06 20:52:41,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148690 to 148336. [2021-01-06 20:52:41,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148336 states. [2021-01-06 20:52:42,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148336 states to 148336 states and 221055 transitions. [2021-01-06 20:52:42,011 INFO L78 Accepts]: Start accepts. Automaton has 148336 states and 221055 transitions. Word has length 83 [2021-01-06 20:52:42,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:52:42,012 INFO L481 AbstractCegarLoop]: Abstraction has 148336 states and 221055 transitions. [2021-01-06 20:52:42,012 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:52:42,012 INFO L276 IsEmpty]: Start isEmpty. Operand 148336 states and 221055 transitions. [2021-01-06 20:52:42,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-01-06 20:52:42,063 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:52:42,063 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:52:42,064 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-06 20:52:42,064 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:52:42,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:52:42,064 INFO L82 PathProgramCache]: Analyzing trace with hash 967908386, now seen corresponding path program 1 times [2021-01-06 20:52:42,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:52:42,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291610788] [2021-01-06 20:52:42,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:52:42,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:52:42,332 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:52:42,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291610788] [2021-01-06 20:52:42,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631643626] [2021-01-06 20:52:42,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 20:52:42,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:52:42,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 4 conjunts are in the unsatisfiable core [2021-01-06 20:52:42,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 20:52:42,810 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-01-06 20:52:42,811 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 20:52:42,811 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4] total 12 [2021-01-06 20:52:42,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033560546] [2021-01-06 20:52:42,812 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-01-06 20:52:42,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:52:42,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-01-06 20:52:42,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-01-06 20:52:42,813 INFO L87 Difference]: Start difference. First operand 148336 states and 221055 transitions. Second operand 12 states. [2021-01-06 20:53:42,940 WARN L197 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 25 [2021-01-06 20:53:44,125 WARN L197 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2021-01-06 20:54:54,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:54:54,834 INFO L93 Difference]: Finished difference Result 1539580 states and 2276629 transitions. [2021-01-06 20:54:54,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-01-06 20:54:54,834 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 114 [2021-01-06 20:54:54,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:54:59,671 INFO L225 Difference]: With dead ends: 1539580 [2021-01-06 20:54:59,671 INFO L226 Difference]: Without dead ends: 1391290 [2021-01-06 20:55:01,154 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4584 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=1978, Invalid=9152, Unknown=0, NotChecked=0, Total=11130 [2021-01-06 20:55:02,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1391290 states.