/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 10:48:53,498 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 10:48:53,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 10:48:53,550 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 10:48:53,551 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 10:48:53,556 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 10:48:53,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 10:48:53,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 10:48:53,584 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 10:48:53,590 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 10:48:53,595 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 10:48:53,597 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 10:48:53,597 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 10:48:53,600 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 10:48:53,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 10:48:53,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 10:48:53,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 10:48:53,608 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 10:48:53,610 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 10:48:53,615 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 10:48:53,620 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 10:48:53,622 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 10:48:53,623 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 10:48:53,624 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 10:48:53,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 10:48:53,627 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 10:48:53,628 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 10:48:53,629 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 10:48:53,629 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 10:48:53,630 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 10:48:53,631 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 10:48:53,632 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 10:48:53,632 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 10:48:53,633 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 10:48:53,634 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 10:48:53,635 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 10:48:53,636 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 10:48:53,636 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 10:48:53,636 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 10:48:53,637 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 10:48:53,638 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 10:48:53,639 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 10:48:53,664 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 10:48:53,664 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 10:48:53,665 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 10:48:53,666 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 10:48:53,666 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 10:48:53,666 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 10:48:53,667 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 10:48:53,667 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 10:48:53,667 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 10:48:53,667 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 10:48:53,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 10:48:53,668 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 10:48:53,668 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 10:48:53,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 10:48:53,669 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 10:48:53,669 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 10:48:53,669 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 10:48:53,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 10:48:53,670 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 10:48:53,670 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 10:48:53,670 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 10:48:53,670 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 10:48:53,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 10:48:53,671 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 10:48:53,671 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 10:48:53,671 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 10:48:54,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 10:48:54,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 10:48:54,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 10:48:54,094 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 10:48:54,094 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 10:48:54,095 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2020-12-23 10:48:54,166 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/5164575d7/21a86ec15e4f4f9caa45efb2676a4457/FLAG89754c748 [2020-12-23 10:48:54,811 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 10:48:54,811 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2020-12-23 10:48:54,828 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/5164575d7/21a86ec15e4f4f9caa45efb2676a4457/FLAG89754c748 [2020-12-23 10:48:55,135 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/5164575d7/21a86ec15e4f4f9caa45efb2676a4457 [2020-12-23 10:48:55,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 10:48:55,145 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 10:48:55,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 10:48:55,149 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 10:48:55,154 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 10:48:55,155 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 10:48:55" (1/1) ... [2020-12-23 10:48:55,157 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d3f8c6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:48:55, skipping insertion in model container [2020-12-23 10:48:55,157 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 10:48:55" (1/1) ... [2020-12-23 10:48:55,170 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 10:48:55,247 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_19289~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_19388~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~0,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~1,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__tmp_19535_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~0,] 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[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_19551~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_2~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~1,] [2020-12-23 10:48:55,611 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[6847,6860] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~2,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~2,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__tmp_19535_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_19565~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~1,] [2020-12-23 10:48:55,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 10:48:55,695 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_19289~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_19388~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~0,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~1,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__tmp_19535_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~0,] 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[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_19551~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_2~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~1,] [2020-12-23 10:48:55,745 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[6847,6860] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~2,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~2,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__tmp_19535_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_19565~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~1,] [2020-12-23 10:48:55,787 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 10:48:55,808 INFO L208 MainTranslator]: Completed translation [2020-12-23 10:48:55,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:48:55 WrapperNode [2020-12-23 10:48:55,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 10:48:55,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 10:48:55,811 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 10:48:55,811 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 10:48:55,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:48:55" (1/1) ... [2020-12-23 10:48:55,833 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:48:55" (1/1) ... [2020-12-23 10:48:55,879 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 10:48:55,880 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 10:48:55,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 10:48:55,880 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 10:48:55,890 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:48:55" (1/1) ... [2020-12-23 10:48:55,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:48:55" (1/1) ... [2020-12-23 10:48:55,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:48:55" (1/1) ... [2020-12-23 10:48:55,896 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:48:55" (1/1) ... [2020-12-23 10:48:55,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:48:55" (1/1) ... [2020-12-23 10:48:55,914 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:48:55" (1/1) ... [2020-12-23 10:48:55,918 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:48:55" (1/1) ... [2020-12-23 10:48:55,924 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 10:48:55,925 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 10:48:55,925 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 10:48:55,926 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 10:48:55,932 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:48:55" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 10:48:56,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 10:48:56,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 10:48:56,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 10:48:56,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 10:48:57,086 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 10:48:57,086 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-23 10:48:57,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 10:48:57 BoogieIcfgContainer [2020-12-23 10:48:57,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 10:48:57,091 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 10:48:57,091 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 10:48:57,094 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 10:48:57,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 10:48:55" (1/3) ... [2020-12-23 10:48:57,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3698b1df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 10:48:57, skipping insertion in model container [2020-12-23 10:48:57,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:48:55" (2/3) ... [2020-12-23 10:48:57,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3698b1df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 10:48:57, skipping insertion in model container [2020-12-23 10:48:57,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 10:48:57" (3/3) ... [2020-12-23 10:48:57,098 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2020-12-23 10:48:57,105 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 10:48:57,111 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 10:48:57,144 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 10:48:57,184 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 10:48:57,184 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 10:48:57,184 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 10:48:57,185 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 10:48:57,185 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 10:48:57,185 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 10:48:57,185 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 10:48:57,185 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 10:48:57,205 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states. [2020-12-23 10:48:57,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-12-23 10:48:57,214 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:48:57,215 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:48:57,216 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:48:57,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:48:57,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1338980314, now seen corresponding path program 1 times [2020-12-23 10:48:57,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:48:57,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980880343] [2020-12-23 10:48:57,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:48:57,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:48:57,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:48:57,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980880343] [2020-12-23 10:48:57,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:48:57,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:48:57,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528545416] [2020-12-23 10:48:57,640 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:48:57,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:48:57,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:48:57,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:48:57,657 INFO L87 Difference]: Start difference. First operand 180 states. Second operand 3 states. [2020-12-23 10:48:57,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:48:57,781 INFO L93 Difference]: Finished difference Result 365 states and 600 transitions. [2020-12-23 10:48:57,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:48:57,783 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2020-12-23 10:48:57,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:48:57,804 INFO L225 Difference]: With dead ends: 365 [2020-12-23 10:48:57,804 INFO L226 Difference]: Without dead ends: 275 [2020-12-23 10:48:57,808 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:48:57,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-12-23 10:48:57,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 273. [2020-12-23 10:48:57,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2020-12-23 10:48:57,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 409 transitions. [2020-12-23 10:48:57,889 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 409 transitions. Word has length 65 [2020-12-23 10:48:57,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:48:57,890 INFO L481 AbstractCegarLoop]: Abstraction has 273 states and 409 transitions. [2020-12-23 10:48:57,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:48:57,891 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 409 transitions. [2020-12-23 10:48:57,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-23 10:48:57,894 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:48:57,894 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:48:57,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 10:48:57,894 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:48:57,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:48:57,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1162317624, now seen corresponding path program 1 times [2020-12-23 10:48:57,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:48:57,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027711981] [2020-12-23 10:48:57,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:48:58,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:48:58,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:48:58,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027711981] [2020-12-23 10:48:58,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:48:58,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 10:48:58,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286510893] [2020-12-23 10:48:58,243 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 10:48:58,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:48:58,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 10:48:58,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:48:58,245 INFO L87 Difference]: Start difference. First operand 273 states and 409 transitions. Second operand 6 states. [2020-12-23 10:48:58,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:48:58,535 INFO L93 Difference]: Finished difference Result 1003 states and 1541 transitions. [2020-12-23 10:48:58,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 10:48:58,536 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2020-12-23 10:48:58,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:48:58,542 INFO L225 Difference]: With dead ends: 1003 [2020-12-23 10:48:58,542 INFO L226 Difference]: Without dead ends: 793 [2020-12-23 10:48:58,545 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:48:58,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2020-12-23 10:48:58,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 787. [2020-12-23 10:48:58,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 787 states. [2020-12-23 10:48:58,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1199 transitions. [2020-12-23 10:48:58,625 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1199 transitions. Word has length 66 [2020-12-23 10:48:58,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:48:58,625 INFO L481 AbstractCegarLoop]: Abstraction has 787 states and 1199 transitions. [2020-12-23 10:48:58,626 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 10:48:58,626 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1199 transitions. [2020-12-23 10:48:58,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-23 10:48:58,637 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:48:58,637 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:48:58,638 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 10:48:58,638 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:48:58,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:48:58,641 INFO L82 PathProgramCache]: Analyzing trace with hash -314049844, now seen corresponding path program 1 times [2020-12-23 10:48:58,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:48:58,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088981633] [2020-12-23 10:48:58,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:48:58,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:48:58,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:48:58,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088981633] [2020-12-23 10:48:58,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:48:58,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:48:58,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644680382] [2020-12-23 10:48:58,829 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 10:48:58,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:48:58,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 10:48:58,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:48:58,836 INFO L87 Difference]: Start difference. First operand 787 states and 1199 transitions. Second operand 6 states. [2020-12-23 10:48:59,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:48:59,307 INFO L93 Difference]: Finished difference Result 2641 states and 4082 transitions. [2020-12-23 10:48:59,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:48:59,308 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2020-12-23 10:48:59,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:48:59,319 INFO L225 Difference]: With dead ends: 2641 [2020-12-23 10:48:59,319 INFO L226 Difference]: Without dead ends: 1905 [2020-12-23 10:48:59,322 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-23 10:48:59,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1905 states. [2020-12-23 10:48:59,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1905 to 1901. [2020-12-23 10:48:59,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1901 states. [2020-12-23 10:48:59,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1901 states to 1901 states and 2928 transitions. [2020-12-23 10:48:59,472 INFO L78 Accepts]: Start accepts. Automaton has 1901 states and 2928 transitions. Word has length 67 [2020-12-23 10:48:59,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:48:59,473 INFO L481 AbstractCegarLoop]: Abstraction has 1901 states and 2928 transitions. [2020-12-23 10:48:59,473 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 10:48:59,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1901 states and 2928 transitions. [2020-12-23 10:48:59,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-23 10:48:59,475 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:48:59,475 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:48:59,475 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 10:48:59,475 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:48:59,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:48:59,476 INFO L82 PathProgramCache]: Analyzing trace with hash -301249106, now seen corresponding path program 1 times [2020-12-23 10:48:59,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:48:59,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906777235] [2020-12-23 10:48:59,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:48:59,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:48:59,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:48:59,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906777235] [2020-12-23 10:48:59,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:48:59,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:48:59,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241676900] [2020-12-23 10:48:59,621 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 10:48:59,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:48:59,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 10:48:59,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:48:59,623 INFO L87 Difference]: Start difference. First operand 1901 states and 2928 transitions. Second operand 6 states. [2020-12-23 10:49:00,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:49:00,252 INFO L93 Difference]: Finished difference Result 6611 states and 10261 transitions. [2020-12-23 10:49:00,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:49:00,252 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2020-12-23 10:49:00,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:49:00,276 INFO L225 Difference]: With dead ends: 6611 [2020-12-23 10:49:00,277 INFO L226 Difference]: Without dead ends: 4811 [2020-12-23 10:49:00,280 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-23 10:49:00,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4811 states. [2020-12-23 10:49:00,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4811 to 4371. [2020-12-23 10:49:00,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4371 states. [2020-12-23 10:49:00,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4371 states to 4371 states and 6749 transitions. [2020-12-23 10:49:00,648 INFO L78 Accepts]: Start accepts. Automaton has 4371 states and 6749 transitions. Word has length 67 [2020-12-23 10:49:00,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:49:00,649 INFO L481 AbstractCegarLoop]: Abstraction has 4371 states and 6749 transitions. [2020-12-23 10:49:00,649 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 10:49:00,649 INFO L276 IsEmpty]: Start isEmpty. Operand 4371 states and 6749 transitions. [2020-12-23 10:49:00,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-23 10:49:00,652 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:49:00,652 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:49:00,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 10:49:00,652 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:49:00,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:49:00,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1722644829, now seen corresponding path program 1 times [2020-12-23 10:49:00,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:49:00,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459012245] [2020-12-23 10:49:00,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:49:00,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:49:00,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:49:00,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459012245] [2020-12-23 10:49:00,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:49:00,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:49:00,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011084053] [2020-12-23 10:49:00,789 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 10:49:00,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:49:00,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 10:49:00,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:49:00,790 INFO L87 Difference]: Start difference. First operand 4371 states and 6749 transitions. Second operand 6 states. [2020-12-23 10:49:01,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:49:01,793 INFO L93 Difference]: Finished difference Result 16440 states and 25438 transitions. [2020-12-23 10:49:01,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:49:01,794 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2020-12-23 10:49:01,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:49:01,854 INFO L225 Difference]: With dead ends: 16440 [2020-12-23 10:49:01,854 INFO L226 Difference]: Without dead ends: 12143 [2020-12-23 10:49:01,864 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-23 10:49:01,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12143 states. [2020-12-23 10:49:02,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12143 to 12139. [2020-12-23 10:49:02,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12139 states. [2020-12-23 10:49:02,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12139 states to 12139 states and 18697 transitions. [2020-12-23 10:49:02,762 INFO L78 Accepts]: Start accepts. Automaton has 12139 states and 18697 transitions. Word has length 67 [2020-12-23 10:49:02,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:49:02,762 INFO L481 AbstractCegarLoop]: Abstraction has 12139 states and 18697 transitions. [2020-12-23 10:49:02,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 10:49:02,762 INFO L276 IsEmpty]: Start isEmpty. Operand 12139 states and 18697 transitions. [2020-12-23 10:49:02,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-23 10:49:02,765 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:49:02,765 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:49:02,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 10:49:02,766 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:49:02,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:49:02,766 INFO L82 PathProgramCache]: Analyzing trace with hash -262843909, now seen corresponding path program 1 times [2020-12-23 10:49:02,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:49:02,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964628543] [2020-12-23 10:49:02,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:49:02,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:49:02,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:49:02,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964628543] [2020-12-23 10:49:02,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:49:02,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 10:49:02,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155468465] [2020-12-23 10:49:02,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 10:49:02,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:49:02,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 10:49:02,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:49:02,911 INFO L87 Difference]: Start difference. First operand 12139 states and 18697 transitions. Second operand 5 states. [2020-12-23 10:49:04,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:49:04,439 INFO L93 Difference]: Finished difference Result 33385 states and 51474 transitions. [2020-12-23 10:49:04,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:49:04,440 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 67 [2020-12-23 10:49:04,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:49:04,531 INFO L225 Difference]: With dead ends: 33385 [2020-12-23 10:49:04,532 INFO L226 Difference]: Without dead ends: 21281 [2020-12-23 10:49:04,550 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 10:49:04,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21281 states. [2020-12-23 10:49:05,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21281 to 21279. [2020-12-23 10:49:05,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21279 states. [2020-12-23 10:49:05,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21279 states to 21279 states and 32471 transitions. [2020-12-23 10:49:05,866 INFO L78 Accepts]: Start accepts. Automaton has 21279 states and 32471 transitions. Word has length 67 [2020-12-23 10:49:05,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:49:05,866 INFO L481 AbstractCegarLoop]: Abstraction has 21279 states and 32471 transitions. [2020-12-23 10:49:05,866 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 10:49:05,867 INFO L276 IsEmpty]: Start isEmpty. Operand 21279 states and 32471 transitions. [2020-12-23 10:49:05,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-23 10:49:05,870 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:49:05,870 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:49:05,870 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 10:49:05,871 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:49:05,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:49:05,871 INFO L82 PathProgramCache]: Analyzing trace with hash -767077788, now seen corresponding path program 1 times [2020-12-23 10:49:05,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:49:05,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987470178] [2020-12-23 10:49:05,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:49:05,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:49:05,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:49:05,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987470178] [2020-12-23 10:49:05,963 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:49:05,963 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:49:05,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059698406] [2020-12-23 10:49:05,963 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 10:49:05,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:49:05,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 10:49:05,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:49:05,965 INFO L87 Difference]: Start difference. First operand 21279 states and 32471 transitions. Second operand 5 states. [2020-12-23 10:49:08,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:49:08,116 INFO L93 Difference]: Finished difference Result 39062 states and 59286 transitions. [2020-12-23 10:49:08,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 10:49:08,119 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 68 [2020-12-23 10:49:08,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:49:08,221 INFO L225 Difference]: With dead ends: 39062 [2020-12-23 10:49:08,221 INFO L226 Difference]: Without dead ends: 39060 [2020-12-23 10:49:08,235 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:49:08,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39060 states. [2020-12-23 10:49:09,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39060 to 21621. [2020-12-23 10:49:09,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21621 states. [2020-12-23 10:49:09,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21621 states to 21621 states and 32813 transitions. [2020-12-23 10:49:09,649 INFO L78 Accepts]: Start accepts. Automaton has 21621 states and 32813 transitions. Word has length 68 [2020-12-23 10:49:09,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:49:09,649 INFO L481 AbstractCegarLoop]: Abstraction has 21621 states and 32813 transitions. [2020-12-23 10:49:09,649 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 10:49:09,650 INFO L276 IsEmpty]: Start isEmpty. Operand 21621 states and 32813 transitions. [2020-12-23 10:49:09,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-23 10:49:09,654 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:49:09,654 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:49:09,654 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 10:49:09,655 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:49:09,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:49:09,655 INFO L82 PathProgramCache]: Analyzing trace with hash -2026121149, now seen corresponding path program 1 times [2020-12-23 10:49:09,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:49:09,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963506121] [2020-12-23 10:49:09,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:49:09,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:49:09,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:49:09,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963506121] [2020-12-23 10:49:09,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:49:09,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 10:49:09,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765685838] [2020-12-23 10:49:09,842 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 10:49:09,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:49:09,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 10:49:09,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 10:49:09,843 INFO L87 Difference]: Start difference. First operand 21621 states and 32813 transitions. Second operand 4 states. [2020-12-23 10:49:11,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:49:11,936 INFO L93 Difference]: Finished difference Result 59935 states and 90604 transitions. [2020-12-23 10:49:11,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 10:49:11,936 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 69 [2020-12-23 10:49:11,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:49:12,005 INFO L225 Difference]: With dead ends: 59935 [2020-12-23 10:49:12,006 INFO L226 Difference]: Without dead ends: 39209 [2020-12-23 10:49:12,036 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 10:49:12,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39209 states. [2020-12-23 10:49:14,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39209 to 39207. [2020-12-23 10:49:14,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39207 states. [2020-12-23 10:49:14,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39207 states to 39207 states and 58883 transitions. [2020-12-23 10:49:14,502 INFO L78 Accepts]: Start accepts. Automaton has 39207 states and 58883 transitions. Word has length 69 [2020-12-23 10:49:14,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:49:14,503 INFO L481 AbstractCegarLoop]: Abstraction has 39207 states and 58883 transitions. [2020-12-23 10:49:14,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 10:49:14,503 INFO L276 IsEmpty]: Start isEmpty. Operand 39207 states and 58883 transitions. [2020-12-23 10:49:14,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-23 10:49:14,506 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:49:14,507 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] [2020-12-23 10:49:14,507 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 10:49:14,507 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:49:14,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:49:14,508 INFO L82 PathProgramCache]: Analyzing trace with hash -304742627, now seen corresponding path program 1 times [2020-12-23 10:49:14,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:49:14,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576431869] [2020-12-23 10:49:14,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:49:14,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:49:14,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:49:14,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576431869] [2020-12-23 10:49:14,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:49:14,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:49:14,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684824258] [2020-12-23 10:49:14,559 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:49:14,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:49:14,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:49:14,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:49:14,560 INFO L87 Difference]: Start difference. First operand 39207 states and 58883 transitions. Second operand 3 states. [2020-12-23 10:49:17,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:49:17,270 INFO L93 Difference]: Finished difference Result 74578 states and 112010 transitions. [2020-12-23 10:49:17,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:49:17,271 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-12-23 10:49:17,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:49:17,349 INFO L225 Difference]: With dead ends: 74578 [2020-12-23 10:49:17,349 INFO L226 Difference]: Without dead ends: 51876 [2020-12-23 10:49:17,385 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:49:17,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51876 states. [2020-12-23 10:49:20,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51876 to 51139. [2020-12-23 10:49:20,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51139 states. [2020-12-23 10:49:20,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51139 states to 51139 states and 75805 transitions. [2020-12-23 10:49:20,594 INFO L78 Accepts]: Start accepts. Automaton has 51139 states and 75805 transitions. Word has length 70 [2020-12-23 10:49:20,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:49:20,595 INFO L481 AbstractCegarLoop]: Abstraction has 51139 states and 75805 transitions. [2020-12-23 10:49:20,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:49:20,595 INFO L276 IsEmpty]: Start isEmpty. Operand 51139 states and 75805 transitions. [2020-12-23 10:49:20,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-23 10:49:20,598 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:49:20,599 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] [2020-12-23 10:49:20,599 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 10:49:20,599 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:49:20,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:49:20,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1483743676, now seen corresponding path program 1 times [2020-12-23 10:49:20,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:49:20,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294771760] [2020-12-23 10:49:20,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:49:20,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:49:20,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:49:20,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294771760] [2020-12-23 10:49:20,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:49:20,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:49:20,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837281430] [2020-12-23 10:49:20,651 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:49:20,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:49:20,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:49:20,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:49:20,652 INFO L87 Difference]: Start difference. First operand 51139 states and 75805 transitions. Second operand 3 states. [2020-12-23 10:49:23,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:49:23,762 INFO L93 Difference]: Finished difference Result 73586 states and 108632 transitions. [2020-12-23 10:49:23,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:49:23,762 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-12-23 10:49:23,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:49:23,838 INFO L225 Difference]: With dead ends: 73586 [2020-12-23 10:49:23,838 INFO L226 Difference]: Without dead ends: 58540 [2020-12-23 10:49:23,858 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:49:23,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58540 states. [2020-12-23 10:49:26,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58540 to 54638. [2020-12-23 10:49:26,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54638 states. [2020-12-23 10:49:27,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54638 states to 54638 states and 79737 transitions. [2020-12-23 10:49:27,055 INFO L78 Accepts]: Start accepts. Automaton has 54638 states and 79737 transitions. Word has length 70 [2020-12-23 10:49:27,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:49:27,056 INFO L481 AbstractCegarLoop]: Abstraction has 54638 states and 79737 transitions. [2020-12-23 10:49:27,056 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:49:27,056 INFO L276 IsEmpty]: Start isEmpty. Operand 54638 states and 79737 transitions. [2020-12-23 10:49:27,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-23 10:49:27,060 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:49:27,060 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] [2020-12-23 10:49:27,060 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 10:49:27,061 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:49:27,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:49:27,061 INFO L82 PathProgramCache]: Analyzing trace with hash 44551324, now seen corresponding path program 1 times [2020-12-23 10:49:27,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:49:27,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877031651] [2020-12-23 10:49:27,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:49:27,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:49:27,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:49:27,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877031651] [2020-12-23 10:49:27,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:49:27,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 10:49:27,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824900080] [2020-12-23 10:49:27,156 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 10:49:27,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:49:27,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 10:49:27,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:49:27,159 INFO L87 Difference]: Start difference. First operand 54638 states and 79737 transitions. Second operand 6 states. [2020-12-23 10:49:35,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:49:35,831 INFO L93 Difference]: Finished difference Result 196171 states and 285687 transitions. [2020-12-23 10:49:35,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 10:49:35,831 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 70 [2020-12-23 10:49:35,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:49:36,219 INFO L225 Difference]: With dead ends: 196171 [2020-12-23 10:49:36,219 INFO L226 Difference]: Without dead ends: 147664 [2020-12-23 10:49:36,272 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-23 10:49:36,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147664 states. [2020-12-23 10:49:41,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147664 to 77557. [2020-12-23 10:49:41,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77557 states. [2020-12-23 10:49:41,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77557 states to 77557 states and 112875 transitions. [2020-12-23 10:49:41,823 INFO L78 Accepts]: Start accepts. Automaton has 77557 states and 112875 transitions. Word has length 70 [2020-12-23 10:49:41,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:49:41,823 INFO L481 AbstractCegarLoop]: Abstraction has 77557 states and 112875 transitions. [2020-12-23 10:49:41,824 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 10:49:41,824 INFO L276 IsEmpty]: Start isEmpty. Operand 77557 states and 112875 transitions. [2020-12-23 10:49:41,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-23 10:49:41,829 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:49:41,829 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] [2020-12-23 10:49:41,829 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-23 10:49:41,829 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:49:41,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:49:41,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1768892355, now seen corresponding path program 1 times [2020-12-23 10:49:41,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:49:41,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846129086] [2020-12-23 10:49:41,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:49:41,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:49:41,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:49:41,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846129086] [2020-12-23 10:49:41,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:49:41,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:49:41,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100233011] [2020-12-23 10:49:41,877 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:49:41,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:49:41,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:49:41,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:49:41,878 INFO L87 Difference]: Start difference. First operand 77557 states and 112875 transitions. Second operand 3 states. [2020-12-23 10:49:48,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:49:48,935 INFO L93 Difference]: Finished difference Result 175179 states and 254698 transitions. [2020-12-23 10:49:48,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:49:48,936 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-12-23 10:49:48,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:49:49,089 INFO L225 Difference]: With dead ends: 175179 [2020-12-23 10:49:49,090 INFO L226 Difference]: Without dead ends: 105740 [2020-12-23 10:49:49,152 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:49:49,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105740 states. [2020-12-23 10:49:56,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105740 to 105405. [2020-12-23 10:49:56,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105405 states. [2020-12-23 10:49:56,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105405 states to 105405 states and 151059 transitions. [2020-12-23 10:49:56,292 INFO L78 Accepts]: Start accepts. Automaton has 105405 states and 151059 transitions. Word has length 70 [2020-12-23 10:49:56,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:49:56,292 INFO L481 AbstractCegarLoop]: Abstraction has 105405 states and 151059 transitions. [2020-12-23 10:49:56,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:49:56,292 INFO L276 IsEmpty]: Start isEmpty. Operand 105405 states and 151059 transitions. [2020-12-23 10:49:56,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-23 10:49:56,298 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:49:56,298 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] [2020-12-23 10:49:56,298 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-23 10:49:56,298 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:49:56,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:49:56,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1753930236, now seen corresponding path program 1 times [2020-12-23 10:49:56,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:49:56,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427677137] [2020-12-23 10:49:56,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:49:56,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:49:56,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:49:56,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427677137] [2020-12-23 10:49:56,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:49:56,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 10:49:56,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671167506] [2020-12-23 10:49:56,386 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 10:49:56,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:49:56,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 10:49:56,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:49:56,387 INFO L87 Difference]: Start difference. First operand 105405 states and 151059 transitions. Second operand 6 states. [2020-12-23 10:50:12,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:50:12,016 INFO L93 Difference]: Finished difference Result 263988 states and 379051 transitions. [2020-12-23 10:50:12,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 10:50:12,017 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 70 [2020-12-23 10:50:12,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:50:12,599 INFO L225 Difference]: With dead ends: 263988 [2020-12-23 10:50:12,599 INFO L226 Difference]: Without dead ends: 243988 [2020-12-23 10:50:12,674 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-12-23 10:50:12,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243988 states. [2020-12-23 10:50:22,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243988 to 126003. [2020-12-23 10:50:22,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126003 states. [2020-12-23 10:50:22,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126003 states to 126003 states and 180528 transitions. [2020-12-23 10:50:22,765 INFO L78 Accepts]: Start accepts. Automaton has 126003 states and 180528 transitions. Word has length 70 [2020-12-23 10:50:22,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:50:22,765 INFO L481 AbstractCegarLoop]: Abstraction has 126003 states and 180528 transitions. [2020-12-23 10:50:22,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 10:50:22,765 INFO L276 IsEmpty]: Start isEmpty. Operand 126003 states and 180528 transitions. [2020-12-23 10:50:22,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-23 10:50:22,773 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:50:22,773 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] [2020-12-23 10:50:22,773 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-23 10:50:22,773 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:50:22,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:50:22,774 INFO L82 PathProgramCache]: Analyzing trace with hash -1600159939, now seen corresponding path program 1 times [2020-12-23 10:50:22,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:50:22,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127550326] [2020-12-23 10:50:22,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:50:22,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:50:22,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:50:22,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127550326] [2020-12-23 10:50:22,863 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:50:22,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 10:50:22,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834204914] [2020-12-23 10:50:22,864 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 10:50:22,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:50:22,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 10:50:22,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:50:22,865 INFO L87 Difference]: Start difference. First operand 126003 states and 180528 transitions. Second operand 6 states. [2020-12-23 10:50:40,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:50:40,088 INFO L93 Difference]: Finished difference Result 284724 states and 408652 transitions. [2020-12-23 10:50:40,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 10:50:40,089 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 70 [2020-12-23 10:50:40,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:50:40,506 INFO L225 Difference]: With dead ends: 284724 [2020-12-23 10:50:40,506 INFO L226 Difference]: Without dead ends: 248011 [2020-12-23 10:50:40,577 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-12-23 10:50:40,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248011 states. [2020-12-23 10:50:52,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248011 to 142367. [2020-12-23 10:50:52,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142367 states. [2020-12-23 10:50:52,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142367 states to 142367 states and 204274 transitions. [2020-12-23 10:50:52,377 INFO L78 Accepts]: Start accepts. Automaton has 142367 states and 204274 transitions. Word has length 70 [2020-12-23 10:50:52,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:50:52,377 INFO L481 AbstractCegarLoop]: Abstraction has 142367 states and 204274 transitions. [2020-12-23 10:50:52,377 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 10:50:52,378 INFO L276 IsEmpty]: Start isEmpty. Operand 142367 states and 204274 transitions. [2020-12-23 10:50:52,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-23 10:50:52,385 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:50:52,386 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] [2020-12-23 10:50:52,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-23 10:50:52,386 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:50:52,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:50:52,387 INFO L82 PathProgramCache]: Analyzing trace with hash 740233245, now seen corresponding path program 1 times [2020-12-23 10:50:52,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:50:52,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233779329] [2020-12-23 10:50:52,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:50:52,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:50:52,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:50:52,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233779329] [2020-12-23 10:50:52,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:50:52,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 10:50:52,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297099880] [2020-12-23 10:50:52,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 10:50:52,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:50:52,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 10:50:52,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:50:52,765 INFO L87 Difference]: Start difference. First operand 142367 states and 204274 transitions. Second operand 6 states.