/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 10:52:51,804 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 10:52:51,808 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 10:52:51,866 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 10:52:51,867 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 10:52:51,871 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 10:52:51,875 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 10:52:51,881 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 10:52:51,885 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 10:52:51,892 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 10:52:51,897 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 10:52:51,899 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 10:52:51,900 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 10:52:51,903 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 10:52:51,906 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 10:52:51,908 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 10:52:51,918 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 10:52:51,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 10:52:51,929 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 10:52:51,937 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 10:52:51,939 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 10:52:51,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 10:52:51,943 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 10:52:51,946 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 10:52:51,955 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 10:52:51,956 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 10:52:51,956 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 10:52:51,959 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 10:52:51,959 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 10:52:51,960 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 10:52:51,961 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 10:52:51,962 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 10:52:51,964 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 10:52:51,965 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 10:52:51,966 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 10:52:51,966 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 10:52:51,967 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 10:52:51,975 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 10:52:51,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 10:52:51,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 10:52:51,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 10:52:51,978 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 10:52:52,029 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 10:52:52,029 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 10:52:52,033 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 10:52:52,034 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 10:52:52,034 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 10:52:52,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 10:52:52,035 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 10:52:52,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 10:52:52,035 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 10:52:52,035 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 10:52:52,036 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 10:52:52,037 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 10:52:52,037 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 10:52:52,037 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 10:52:52,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 10:52:52,038 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 10:52:52,038 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 10:52:52,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 10:52:52,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 10:52:52,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 10:52:52,039 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 10:52:52,039 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 10:52:52,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 10:52:52,039 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 10:52:52,039 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 10:52:52,040 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 10:52:52,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 10:52:52,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 10:52:52,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 10:52:52,573 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 10:52:52,577 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 10:52:52,578 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2020-12-23 10:52:52,670 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/8ce60eb76/9f23b42cc883445abbe3ec8bafb59536/FLAGd7ad1d15a [2020-12-23 10:52:53,321 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 10:52:53,321 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2020-12-23 10:52:53,342 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/8ce60eb76/9f23b42cc883445abbe3ec8bafb59536/FLAGd7ad1d15a [2020-12-23 10:52:53,647 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/8ce60eb76/9f23b42cc883445abbe3ec8bafb59536 [2020-12-23 10:52:53,651 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 10:52:53,653 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 10:52:53,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 10:52:53,658 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 10:52:53,662 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 10:52:53,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 10:52:53" (1/1) ... [2020-12-23 10:52:53,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17815e99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:52:53, skipping insertion in model container [2020-12-23 10:52:53,667 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 10:52:53" (1/1) ... [2020-12-23 10:52:53,681 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 10:52:53,765 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_33017~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~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[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_33136~0,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[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] 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_33297_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~1,] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_33329~0,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 10:52:54,075 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[8205,8218] 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[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] 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_33297_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[~__return_33342~0,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[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~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[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_1~1,] 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,] [2020-12-23 10:52:54,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 10:52:54,266 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_33017~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~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[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_33136~0,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[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] 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_33297_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~1,] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_33329~0,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 10:52:54,328 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[8205,8218] 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[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] 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_33297_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[~__return_33342~0,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[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~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[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_1~1,] 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,] [2020-12-23 10:52:54,380 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 10:52:54,404 INFO L208 MainTranslator]: Completed translation [2020-12-23 10:52:54,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:52:54 WrapperNode [2020-12-23 10:52:54,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 10:52:54,409 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 10:52:54,409 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 10:52:54,410 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 10:52:54,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:52:54" (1/1) ... [2020-12-23 10:52:54,456 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:52:54" (1/1) ... [2020-12-23 10:52:54,555 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 10:52:54,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 10:52:54,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 10:52:54,556 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 10:52:54,584 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:52:54" (1/1) ... [2020-12-23 10:52:54,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:52:54" (1/1) ... [2020-12-23 10:52:54,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:52:54" (1/1) ... [2020-12-23 10:52:54,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:52:54" (1/1) ... [2020-12-23 10:52:54,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:52:54" (1/1) ... [2020-12-23 10:52:54,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:52:54" (1/1) ... [2020-12-23 10:52:54,661 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:52:54" (1/1) ... [2020-12-23 10:52:54,666 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 10:52:54,667 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 10:52:54,668 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 10:52:54,668 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 10:52:54,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:52:54" (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 10:52:54,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 10:52:54,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 10:52:54,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 10:52:54,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 10:52:55,983 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 10:52:55,983 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-23 10:52:55,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 10:52:55 BoogieIcfgContainer [2020-12-23 10:52:55,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 10:52:55,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 10:52:55,996 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 10:52:56,002 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 10:52:56,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 10:52:53" (1/3) ... [2020-12-23 10:52:56,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68a2f33e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 10:52:56, skipping insertion in model container [2020-12-23 10:52:56,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:52:54" (2/3) ... [2020-12-23 10:52:56,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68a2f33e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 10:52:56, skipping insertion in model container [2020-12-23 10:52:56,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 10:52:55" (3/3) ... [2020-12-23 10:52:56,014 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2020-12-23 10:52:56,026 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 10:52:56,038 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 10:52:56,087 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 10:52:56,127 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 10:52:56,127 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 10:52:56,127 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 10:52:56,127 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 10:52:56,128 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 10:52:56,128 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 10:52:56,128 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 10:52:56,128 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 10:52:56,154 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-12-23 10:52:56,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-23 10:52:56,165 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:52:56,166 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:52:56,166 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:52:56,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:52:56,179 INFO L82 PathProgramCache]: Analyzing trace with hash -374161539, now seen corresponding path program 1 times [2020-12-23 10:52:56,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:52:56,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905399409] [2020-12-23 10:52:56,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:52:56,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:52:56,697 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 10:52:56,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905399409] [2020-12-23 10:52:56,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:52:56,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:52:56,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666054935] [2020-12-23 10:52:56,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:52:56,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:52:56,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:52:56,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:52:56,724 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-12-23 10:52:56,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:52:56,885 INFO L93 Difference]: Finished difference Result 418 states and 689 transitions. [2020-12-23 10:52:56,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:52:56,888 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2020-12-23 10:52:56,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:52:56,911 INFO L225 Difference]: With dead ends: 418 [2020-12-23 10:52:56,911 INFO L226 Difference]: Without dead ends: 315 [2020-12-23 10:52:56,915 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 10:52:56,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-12-23 10:52:57,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 313. [2020-12-23 10:52:57,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2020-12-23 10:52:57,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 467 transitions. [2020-12-23 10:52:57,023 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 467 transitions. Word has length 80 [2020-12-23 10:52:57,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:52:57,024 INFO L481 AbstractCegarLoop]: Abstraction has 313 states and 467 transitions. [2020-12-23 10:52:57,024 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:52:57,025 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 467 transitions. [2020-12-23 10:52:57,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-23 10:52:57,029 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:52:57,029 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:52:57,030 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 10:52:57,030 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:52:57,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:52:57,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1024475534, now seen corresponding path program 1 times [2020-12-23 10:52:57,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:52:57,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156116011] [2020-12-23 10:52:57,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:52:57,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:52:57,515 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 10:52:57,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156116011] [2020-12-23 10:52:57,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:52:57,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 10:52:57,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221855216] [2020-12-23 10:52:57,519 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 10:52:57,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:52:57,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 10:52:57,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-23 10:52:57,521 INFO L87 Difference]: Start difference. First operand 313 states and 467 transitions. Second operand 7 states. [2020-12-23 10:52:58,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:52:58,124 INFO L93 Difference]: Finished difference Result 1359 states and 2095 transitions. [2020-12-23 10:52:58,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 10:52:58,125 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 81 [2020-12-23 10:52:58,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:52:58,138 INFO L225 Difference]: With dead ends: 1359 [2020-12-23 10:52:58,138 INFO L226 Difference]: Without dead ends: 1123 [2020-12-23 10:52:58,144 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-23 10:52:58,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states. [2020-12-23 10:52:58,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 1115. [2020-12-23 10:52:58,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1115 states. [2020-12-23 10:52:58,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1712 transitions. [2020-12-23 10:52:58,250 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 1712 transitions. Word has length 81 [2020-12-23 10:52:58,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:52:58,250 INFO L481 AbstractCegarLoop]: Abstraction has 1115 states and 1712 transitions. [2020-12-23 10:52:58,250 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 10:52:58,251 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 1712 transitions. [2020-12-23 10:52:58,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-23 10:52:58,258 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:52:58,258 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:52:58,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 10:52:58,259 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:52:58,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:52:58,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1872628209, now seen corresponding path program 1 times [2020-12-23 10:52:58,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:52:58,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579807195] [2020-12-23 10:52:58,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:52:58,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:52:58,394 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 10:52:58,395 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579807195] [2020-12-23 10:52:58,395 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:52:58,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 10:52:58,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134846756] [2020-12-23 10:52:58,396 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 10:52:58,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:52:58,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 10:52:58,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:52:58,400 INFO L87 Difference]: Start difference. First operand 1115 states and 1712 transitions. Second operand 5 states. [2020-12-23 10:52:59,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:52:59,085 INFO L93 Difference]: Finished difference Result 3019 states and 4692 transitions. [2020-12-23 10:52:59,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:52:59,086 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 82 [2020-12-23 10:52:59,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:52:59,097 INFO L225 Difference]: With dead ends: 3019 [2020-12-23 10:52:59,098 INFO L226 Difference]: Without dead ends: 1959 [2020-12-23 10:52:59,100 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 10:52:59,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1959 states. [2020-12-23 10:52:59,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1959 to 1957. [2020-12-23 10:52:59,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1957 states. [2020-12-23 10:52:59,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1957 states to 1957 states and 3024 transitions. [2020-12-23 10:52:59,250 INFO L78 Accepts]: Start accepts. Automaton has 1957 states and 3024 transitions. Word has length 82 [2020-12-23 10:52:59,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:52:59,251 INFO L481 AbstractCegarLoop]: Abstraction has 1957 states and 3024 transitions. [2020-12-23 10:52:59,251 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 10:52:59,251 INFO L276 IsEmpty]: Start isEmpty. Operand 1957 states and 3024 transitions. [2020-12-23 10:52:59,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-23 10:52:59,255 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:52:59,255 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:52:59,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 10:52:59,256 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:52:59,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:52:59,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1410777150, now seen corresponding path program 1 times [2020-12-23 10:52:59,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:52:59,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634924120] [2020-12-23 10:52:59,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:52:59,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:52:59,414 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 10:52:59,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634924120] [2020-12-23 10:52:59,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:52:59,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:52:59,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554610092] [2020-12-23 10:52:59,416 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 10:52:59,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:52:59,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 10:52:59,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:52:59,418 INFO L87 Difference]: Start difference. First operand 1957 states and 3024 transitions. Second operand 6 states. [2020-12-23 10:53:00,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:53:00,225 INFO L93 Difference]: Finished difference Result 6898 states and 10742 transitions. [2020-12-23 10:53:00,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:53:00,226 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 82 [2020-12-23 10:53:00,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:53:00,254 INFO L225 Difference]: With dead ends: 6898 [2020-12-23 10:53:00,255 INFO L226 Difference]: Without dead ends: 5019 [2020-12-23 10:53:00,259 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 10:53:00,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5019 states. [2020-12-23 10:53:00,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5019 to 5015. [2020-12-23 10:53:00,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5015 states. [2020-12-23 10:53:00,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5015 states to 5015 states and 7778 transitions. [2020-12-23 10:53:00,642 INFO L78 Accepts]: Start accepts. Automaton has 5015 states and 7778 transitions. Word has length 82 [2020-12-23 10:53:00,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:53:00,643 INFO L481 AbstractCegarLoop]: Abstraction has 5015 states and 7778 transitions. [2020-12-23 10:53:00,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 10:53:00,643 INFO L276 IsEmpty]: Start isEmpty. Operand 5015 states and 7778 transitions. [2020-12-23 10:53:00,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-23 10:53:00,647 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:53:00,648 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:53:00,648 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 10:53:00,648 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:53:00,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:53:00,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1933266084, now seen corresponding path program 1 times [2020-12-23 10:53:00,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:53:00,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441035399] [2020-12-23 10:53:00,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:53:00,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:53:00,835 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 10:53:00,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441035399] [2020-12-23 10:53:00,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:53:00,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 10:53:00,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394571163] [2020-12-23 10:53:00,837 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 10:53:00,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:53:00,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 10:53:00,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:53:00,840 INFO L87 Difference]: Start difference. First operand 5015 states and 7778 transitions. Second operand 5 states. [2020-12-23 10:53:01,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:53:01,711 INFO L93 Difference]: Finished difference Result 14286 states and 22247 transitions. [2020-12-23 10:53:01,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:53:01,714 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 82 [2020-12-23 10:53:01,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:53:01,769 INFO L225 Difference]: With dead ends: 14286 [2020-12-23 10:53:01,769 INFO L226 Difference]: Without dead ends: 9413 [2020-12-23 10:53:01,779 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 10:53:01,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9413 states. [2020-12-23 10:53:02,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9413 to 9411. [2020-12-23 10:53:02,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9411 states. [2020-12-23 10:53:02,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9411 states to 9411 states and 14583 transitions. [2020-12-23 10:53:02,535 INFO L78 Accepts]: Start accepts. Automaton has 9411 states and 14583 transitions. Word has length 82 [2020-12-23 10:53:02,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:53:02,537 INFO L481 AbstractCegarLoop]: Abstraction has 9411 states and 14583 transitions. [2020-12-23 10:53:02,537 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 10:53:02,537 INFO L276 IsEmpty]: Start isEmpty. Operand 9411 states and 14583 transitions. [2020-12-23 10:53:02,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-23 10:53:02,541 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:53:02,542 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:53:02,542 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 10:53:02,542 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:53:02,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:53:02,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1259416403, now seen corresponding path program 1 times [2020-12-23 10:53:02,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:53:02,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857381952] [2020-12-23 10:53:02,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:53:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:53:02,660 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 10:53:02,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857381952] [2020-12-23 10:53:02,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:53:02,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 10:53:02,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975816703] [2020-12-23 10:53:02,662 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 10:53:02,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:53:02,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 10:53:02,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:53:02,664 INFO L87 Difference]: Start difference. First operand 9411 states and 14583 transitions. Second operand 5 states. [2020-12-23 10:53:04,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:53:04,094 INFO L93 Difference]: Finished difference Result 27540 states and 42746 transitions. [2020-12-23 10:53:04,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:53:04,095 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 82 [2020-12-23 10:53:04,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:53:04,162 INFO L225 Difference]: With dead ends: 27540 [2020-12-23 10:53:04,162 INFO L226 Difference]: Without dead ends: 18237 [2020-12-23 10:53:04,179 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 10:53:04,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18237 states. [2020-12-23 10:53:05,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18237 to 18235. [2020-12-23 10:53:05,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18235 states. [2020-12-23 10:53:05,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18235 states to 18235 states and 28146 transitions. [2020-12-23 10:53:05,600 INFO L78 Accepts]: Start accepts. Automaton has 18235 states and 28146 transitions. Word has length 82 [2020-12-23 10:53:05,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:53:05,600 INFO L481 AbstractCegarLoop]: Abstraction has 18235 states and 28146 transitions. [2020-12-23 10:53:05,601 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 10:53:05,601 INFO L276 IsEmpty]: Start isEmpty. Operand 18235 states and 28146 transitions. [2020-12-23 10:53:05,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-23 10:53:05,613 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:53:05,613 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:53:05,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 10:53:05,614 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:53:05,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:53:05,615 INFO L82 PathProgramCache]: Analyzing trace with hash -407485162, now seen corresponding path program 1 times [2020-12-23 10:53:05,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:53:05,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899643234] [2020-12-23 10:53:05,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:53:05,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:53:05,730 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 10:53:05,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899643234] [2020-12-23 10:53:05,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:53:05,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:53:05,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820492136] [2020-12-23 10:53:05,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 10:53:05,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:53:05,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 10:53:05,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:53:05,733 INFO L87 Difference]: Start difference. First operand 18235 states and 28146 transitions. Second operand 6 states. [2020-12-23 10:53:08,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:53:08,788 INFO L93 Difference]: Finished difference Result 68658 states and 105920 transitions. [2020-12-23 10:53:08,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:53:08,789 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2020-12-23 10:53:08,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:53:08,931 INFO L225 Difference]: With dead ends: 68658 [2020-12-23 10:53:08,931 INFO L226 Difference]: Without dead ends: 50487 [2020-12-23 10:53:08,964 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 10:53:09,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50487 states. [2020-12-23 10:53:11,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50487 to 35921. [2020-12-23 10:53:11,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35921 states. [2020-12-23 10:53:11,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35921 states to 35921 states and 55155 transitions. [2020-12-23 10:53:11,369 INFO L78 Accepts]: Start accepts. Automaton has 35921 states and 55155 transitions. Word has length 83 [2020-12-23 10:53:11,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:53:11,369 INFO L481 AbstractCegarLoop]: Abstraction has 35921 states and 55155 transitions. [2020-12-23 10:53:11,369 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 10:53:11,370 INFO L276 IsEmpty]: Start isEmpty. Operand 35921 states and 55155 transitions. [2020-12-23 10:53:11,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-23 10:53:11,381 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:53:11,381 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:53:11,381 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 10:53:11,381 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:53:11,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:53:11,382 INFO L82 PathProgramCache]: Analyzing trace with hash 174469786, now seen corresponding path program 1 times [2020-12-23 10:53:11,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:53:11,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328605109] [2020-12-23 10:53:11,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:53:11,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:53:11,490 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 10:53:11,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328605109] [2020-12-23 10:53:11,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:53:11,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:53:11,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902268084] [2020-12-23 10:53:11,492 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 10:53:11,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:53:11,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 10:53:11,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:53:11,493 INFO L87 Difference]: Start difference. First operand 35921 states and 55155 transitions. Second operand 5 states. [2020-12-23 10:53:14,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:53:14,947 INFO L93 Difference]: Finished difference Result 68331 states and 104428 transitions. [2020-12-23 10:53:14,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 10:53:14,948 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 83 [2020-12-23 10:53:14,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:53:15,112 INFO L225 Difference]: With dead ends: 68331 [2020-12-23 10:53:15,113 INFO L226 Difference]: Without dead ends: 68329 [2020-12-23 10:53:15,138 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:53:15,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68329 states. [2020-12-23 10:53:18,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68329 to 36401. [2020-12-23 10:53:18,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36401 states. [2020-12-23 10:53:18,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36401 states to 36401 states and 55635 transitions. [2020-12-23 10:53:18,165 INFO L78 Accepts]: Start accepts. Automaton has 36401 states and 55635 transitions. Word has length 83 [2020-12-23 10:53:18,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:53:18,166 INFO L481 AbstractCegarLoop]: Abstraction has 36401 states and 55635 transitions. [2020-12-23 10:53:18,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 10:53:18,166 INFO L276 IsEmpty]: Start isEmpty. Operand 36401 states and 55635 transitions. [2020-12-23 10:53:18,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-12-23 10:53:18,177 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:53:18,177 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:53:18,177 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 10:53:18,178 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:53:18,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:53:18,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1373936999, now seen corresponding path program 1 times [2020-12-23 10:53:18,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:53:18,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864390657] [2020-12-23 10:53:18,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:53:18,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:53:18,462 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 10:53:18,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864390657] [2020-12-23 10:53:18,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:53:18,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 10:53:18,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141046462] [2020-12-23 10:53:18,464 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 10:53:18,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:53:18,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 10:53:18,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-12-23 10:53:18,465 INFO L87 Difference]: Start difference. First operand 36401 states and 55635 transitions. Second operand 10 states. [2020-12-23 10:53:29,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:53:29,993 INFO L93 Difference]: Finished difference Result 173116 states and 262084 transitions. [2020-12-23 10:53:29,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-23 10:53:29,994 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 84 [2020-12-23 10:53:29,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:53:30,459 INFO L225 Difference]: With dead ends: 173116 [2020-12-23 10:53:30,459 INFO L226 Difference]: Without dead ends: 147061 [2020-12-23 10:53:30,577 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=219, Invalid=593, Unknown=0, NotChecked=0, Total=812 [2020-12-23 10:53:30,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147061 states. [2020-12-23 10:53:35,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147061 to 36600. [2020-12-23 10:53:35,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36600 states. [2020-12-23 10:53:35,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36600 states to 36600 states and 55896 transitions. [2020-12-23 10:53:35,109 INFO L78 Accepts]: Start accepts. Automaton has 36600 states and 55896 transitions. Word has length 84 [2020-12-23 10:53:35,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:53:35,109 INFO L481 AbstractCegarLoop]: Abstraction has 36600 states and 55896 transitions. [2020-12-23 10:53:35,109 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 10:53:35,109 INFO L276 IsEmpty]: Start isEmpty. Operand 36600 states and 55896 transitions. [2020-12-23 10:53:35,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-12-23 10:53:35,124 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:53:35,124 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:53:35,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 10:53:35,124 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:53:35,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:53:35,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1624682823, now seen corresponding path program 1 times [2020-12-23 10:53:35,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:53:35,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237840897] [2020-12-23 10:53:35,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:53:35,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:53:35,360 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 10:53:35,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237840897] [2020-12-23 10:53:35,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:53:35,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 10:53:35,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161221916] [2020-12-23 10:53:35,361 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 10:53:35,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:53:35,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 10:53:35,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-12-23 10:53:35,362 INFO L87 Difference]: Start difference. First operand 36600 states and 55896 transitions. Second operand 10 states. [2020-12-23 10:53:36,057 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 17 [2020-12-23 10:53:53,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:53:53,722 INFO L93 Difference]: Finished difference Result 206357 states and 314869 transitions. [2020-12-23 10:53:53,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-12-23 10:53:53,723 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 84 [2020-12-23 10:53:53,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:53:54,072 INFO L225 Difference]: With dead ends: 206357 [2020-12-23 10:53:54,073 INFO L226 Difference]: Without dead ends: 185976 [2020-12-23 10:53:54,301 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=391, Invalid=1249, Unknown=0, NotChecked=0, Total=1640 [2020-12-23 10:53:54,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185976 states. [2020-12-23 10:53:58,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185976 to 37070. [2020-12-23 10:53:58,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37070 states. [2020-12-23 10:53:58,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37070 states to 37070 states and 56508 transitions. [2020-12-23 10:53:58,946 INFO L78 Accepts]: Start accepts. Automaton has 37070 states and 56508 transitions. Word has length 84 [2020-12-23 10:53:58,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:53:58,947 INFO L481 AbstractCegarLoop]: Abstraction has 37070 states and 56508 transitions. [2020-12-23 10:53:58,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 10:53:58,947 INFO L276 IsEmpty]: Start isEmpty. Operand 37070 states and 56508 transitions. [2020-12-23 10:53:58,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-12-23 10:53:58,954 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:53:58,954 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:53:58,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 10:53:58,955 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:53:58,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:53:58,955 INFO L82 PathProgramCache]: Analyzing trace with hash -817188601, now seen corresponding path program 1 times [2020-12-23 10:53:58,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:53:58,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021127871] [2020-12-23 10:53:58,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:53:58,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:53:59,185 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 10:53:59,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021127871] [2020-12-23 10:53:59,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:53:59,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 10:53:59,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055323247] [2020-12-23 10:53:59,187 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 10:53:59,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:53:59,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 10:53:59,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-12-23 10:53:59,188 INFO L87 Difference]: Start difference. First operand 37070 states and 56508 transitions. Second operand 10 states. [2020-12-23 10:54:20,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:54:20,410 INFO L93 Difference]: Finished difference Result 194410 states and 295185 transitions. [2020-12-23 10:54:20,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-23 10:54:20,410 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 84 [2020-12-23 10:54:20,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:54:20,970 INFO L225 Difference]: With dead ends: 194410 [2020-12-23 10:54:20,970 INFO L226 Difference]: Without dead ends: 190178 [2020-12-23 10:54:21,022 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=236, Invalid=694, Unknown=0, NotChecked=0, Total=930 [2020-12-23 10:54:21,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190178 states. [2020-12-23 10:54:26,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190178 to 37070. [2020-12-23 10:54:26,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37070 states. [2020-12-23 10:54:26,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37070 states to 37070 states and 56504 transitions. [2020-12-23 10:54:26,302 INFO L78 Accepts]: Start accepts. Automaton has 37070 states and 56504 transitions. Word has length 84 [2020-12-23 10:54:26,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:54:26,303 INFO L481 AbstractCegarLoop]: Abstraction has 37070 states and 56504 transitions. [2020-12-23 10:54:26,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 10:54:26,303 INFO L276 IsEmpty]: Start isEmpty. Operand 37070 states and 56504 transitions. [2020-12-23 10:54:26,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-12-23 10:54:26,310 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:54:26,310 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:54:26,310 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-23 10:54:26,310 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:54:26,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:54:26,311 INFO L82 PathProgramCache]: Analyzing trace with hash -916583129, now seen corresponding path program 1 times [2020-12-23 10:54:26,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:54:26,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713888440] [2020-12-23 10:54:26,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:54:26,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:54:26,565 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 10:54:26,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713888440] [2020-12-23 10:54:26,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:54:26,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 10:54:26,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76624563] [2020-12-23 10:54:26,567 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 10:54:26,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:54:26,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 10:54:26,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-12-23 10:54:26,569 INFO L87 Difference]: Start difference. First operand 37070 states and 56504 transitions. Second operand 10 states. [2020-12-23 10:54:42,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:54:42,549 INFO L93 Difference]: Finished difference Result 118547 states and 178621 transitions. [2020-12-23 10:54:42,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-12-23 10:54:42,550 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 84 [2020-12-23 10:54:42,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:54:42,719 INFO L225 Difference]: With dead ends: 118547 [2020-12-23 10:54:42,719 INFO L226 Difference]: Without dead ends: 106713 [2020-12-23 10:54:42,746 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=247, Invalid=683, Unknown=0, NotChecked=0, Total=930 [2020-12-23 10:54:42,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106713 states. [2020-12-23 10:54:48,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106713 to 37879. [2020-12-23 10:54:48,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37879 states. [2020-12-23 10:54:48,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37879 states to 37879 states and 57641 transitions. [2020-12-23 10:54:48,154 INFO L78 Accepts]: Start accepts. Automaton has 37879 states and 57641 transitions. Word has length 84 [2020-12-23 10:54:48,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:54:48,154 INFO L481 AbstractCegarLoop]: Abstraction has 37879 states and 57641 transitions. [2020-12-23 10:54:48,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 10:54:48,154 INFO L276 IsEmpty]: Start isEmpty. Operand 37879 states and 57641 transitions. [2020-12-23 10:54:48,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-12-23 10:54:48,162 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:54:48,162 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:54:48,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-23 10:54:48,163 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:54:48,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:54:48,163 INFO L82 PathProgramCache]: Analyzing trace with hash -298707139, now seen corresponding path program 1 times [2020-12-23 10:54:48,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:54:48,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122003242] [2020-12-23 10:54:48,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:54:48,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:54:48,411 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 10:54:48,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122003242] [2020-12-23 10:54:48,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:54:48,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 10:54:48,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154501872] [2020-12-23 10:54:48,413 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 10:54:48,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:54:48,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 10:54:48,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-12-23 10:54:48,415 INFO L87 Difference]: Start difference. First operand 37879 states and 57641 transitions. Second operand 10 states. [2020-12-23 10:55:32,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:55:32,457 INFO L93 Difference]: Finished difference Result 337545 states and 514721 transitions. [2020-12-23 10:55:32,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-12-23 10:55:32,457 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-12-23 10:55:32,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:55:32,986 INFO L225 Difference]: With dead ends: 337545 [2020-12-23 10:55:32,986 INFO L226 Difference]: Without dead ends: 301318 [2020-12-23 10:55:33,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=391, Invalid=1249, Unknown=0, NotChecked=0, Total=1640 [2020-12-23 10:55:33,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301318 states. [2020-12-23 10:55:41,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301318 to 38238. [2020-12-23 10:55:41,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38238 states. [2020-12-23 10:55:41,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38238 states to 38238 states and 58052 transitions. [2020-12-23 10:55:41,644 INFO L78 Accepts]: Start accepts. Automaton has 38238 states and 58052 transitions. Word has length 85 [2020-12-23 10:55:41,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:55:41,645 INFO L481 AbstractCegarLoop]: Abstraction has 38238 states and 58052 transitions. [2020-12-23 10:55:41,645 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 10:55:41,645 INFO L276 IsEmpty]: Start isEmpty. Operand 38238 states and 58052 transitions. [2020-12-23 10:55:41,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-12-23 10:55:41,652 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:55:41,653 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:55:41,653 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-23 10:55:41,653 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:55:41,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:55:41,654 INFO L82 PathProgramCache]: Analyzing trace with hash -346590493, now seen corresponding path program 1 times [2020-12-23 10:55:41,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:55:41,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83014809] [2020-12-23 10:55:41,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:55:41,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:55:41,782 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 10:55:41,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83014809] [2020-12-23 10:55:41,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:55:41,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 10:55:41,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024076902] [2020-12-23 10:55:41,784 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 10:55:41,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:55:41,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 10:55:41,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 10:55:41,785 INFO L87 Difference]: Start difference. First operand 38238 states and 58052 transitions. Second operand 4 states. [2020-12-23 10:55:52,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:55:52,846 INFO L93 Difference]: Finished difference Result 104538 states and 158794 transitions. [2020-12-23 10:55:52,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 10:55:52,847 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 85 [2020-12-23 10:55:52,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:55:52,932 INFO L225 Difference]: With dead ends: 104538 [2020-12-23 10:55:52,932 INFO L226 Difference]: Without dead ends: 69128 [2020-12-23 10:55:52,955 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 10:55:53,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69128 states. [2020-12-23 10:56:04,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69128 to 69126. [2020-12-23 10:56:04,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69126 states. [2020-12-23 10:56:04,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69126 states to 69126 states and 104360 transitions. [2020-12-23 10:56:04,196 INFO L78 Accepts]: Start accepts. Automaton has 69126 states and 104360 transitions. Word has length 85 [2020-12-23 10:56:04,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:56:04,196 INFO L481 AbstractCegarLoop]: Abstraction has 69126 states and 104360 transitions. [2020-12-23 10:56:04,196 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 10:56:04,196 INFO L276 IsEmpty]: Start isEmpty. Operand 69126 states and 104360 transitions. [2020-12-23 10:56:04,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-12-23 10:56:04,206 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:56:04,207 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:56:04,207 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-23 10:56:04,207 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:56:04,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:56:04,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1374524072, now seen corresponding path program 1 times [2020-12-23 10:56:04,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:56:04,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587969219] [2020-12-23 10:56:04,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:56:04,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:56:04,263 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 10:56:04,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587969219] [2020-12-23 10:56:04,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:56:04,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:56:04,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490512273] [2020-12-23 10:56:04,264 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:56:04,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:56:04,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:56:04,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:56:04,265 INFO L87 Difference]: Start difference. First operand 69126 states and 104360 transitions. Second operand 3 states. [2020-12-23 10:56:19,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:56:19,652 INFO L93 Difference]: Finished difference Result 138221 states and 209115 transitions. [2020-12-23 10:56:19,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:56:19,653 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2020-12-23 10:56:19,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:56:19,970 INFO L225 Difference]: With dead ends: 138221 [2020-12-23 10:56:19,971 INFO L226 Difference]: Without dead ends: 94066 [2020-12-23 10:56:20,008 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 10:56:20,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94066 states. [2020-12-23 10:56:35,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94066 to 93184. [2020-12-23 10:56:35,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93184 states. [2020-12-23 10:56:35,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93184 states to 93184 states and 139354 transitions. [2020-12-23 10:56:35,871 INFO L78 Accepts]: Start accepts. Automaton has 93184 states and 139354 transitions. Word has length 85 [2020-12-23 10:56:35,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:56:35,871 INFO L481 AbstractCegarLoop]: Abstraction has 93184 states and 139354 transitions. [2020-12-23 10:56:35,871 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:56:35,871 INFO L276 IsEmpty]: Start isEmpty. Operand 93184 states and 139354 transitions. [2020-12-23 10:56:35,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-12-23 10:56:35,880 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:56:35,880 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:56:35,880 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-23 10:56:35,880 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:56:35,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:56:35,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1970268265, now seen corresponding path program 1 times [2020-12-23 10:56:35,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:56:35,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380782877] [2020-12-23 10:56:35,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:56:35,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:56:35,934 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 10:56:35,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380782877] [2020-12-23 10:56:35,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:56:35,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:56:35,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576515934] [2020-12-23 10:56:35,935 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:56:35,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:56:35,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:56:35,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:56:35,936 INFO L87 Difference]: Start difference. First operand 93184 states and 139354 transitions. Second operand 3 states. [2020-12-23 10:56:53,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:56:53,684 INFO L93 Difference]: Finished difference Result 150085 states and 224109 transitions. [2020-12-23 10:56:53,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:56:53,685 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2020-12-23 10:56:53,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:56:54,017 INFO L225 Difference]: With dead ends: 150085 [2020-12-23 10:56:54,017 INFO L226 Difference]: Without dead ends: 103151 [2020-12-23 10:56:54,071 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 10:56:54,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103151 states.