/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_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 11:27:56,326 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 11:27:56,331 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 11:27:56,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 11:27:56,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 11:27:56,392 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 11:27:56,396 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 11:27:56,402 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 11:27:56,405 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 11:27:56,412 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 11:27:56,416 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 11:27:56,418 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 11:27:56,418 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 11:27:56,421 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 11:27:56,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 11:27:56,425 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 11:27:56,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 11:27:56,430 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 11:27:56,437 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 11:27:56,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 11:27:56,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 11:27:56,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 11:27:56,455 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 11:27:56,457 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 11:27:56,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 11:27:56,484 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 11:27:56,484 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 11:27:56,486 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 11:27:56,487 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 11:27:56,488 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 11:27:56,489 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 11:27:56,490 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 11:27:56,492 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 11:27:56,493 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 11:27:56,494 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 11:27:56,494 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 11:27:56,495 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 11:27:56,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 11:27:56,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 11:27:56,503 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 11:27:56,504 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 11:27:56,505 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 11:27:56,558 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 11:27:56,558 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 11:27:56,563 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 11:27:56,564 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 11:27:56,564 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 11:27:56,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 11:27:56,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 11:27:56,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 11:27:56,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 11:27:56,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 11:27:56,566 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 11:27:56,567 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 11:27:56,567 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 11:27:56,567 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 11:27:56,567 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 11:27:56,568 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 11:27:56,568 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 11:27:56,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 11:27:56,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 11:27:56,569 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 11:27:56,569 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 11:27:56,569 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 11:27:56,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 11:27:56,569 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 11:27:56,570 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 11:27:56,570 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 11:27:57,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 11:27:57,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 11:27:57,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 11:27:57,094 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 11:27:57,095 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 11:27:57,096 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2020-12-23 11:27:57,193 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/26a957b25/d7cde8d7074046fdb128534de1c7a7cd/FLAG461cdee72 [2020-12-23 11:27:58,106 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 11:27:58,107 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2020-12-23 11:27:58,126 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/26a957b25/d7cde8d7074046fdb128534de1c7a7cd/FLAG461cdee72 [2020-12-23 11:27:58,334 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/26a957b25/d7cde8d7074046fdb128534de1c7a7cd [2020-12-23 11:27:58,337 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 11:27:58,341 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 11:27:58,346 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 11:27:58,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 11:27:58,351 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 11:27:58,352 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:27:58" (1/1) ... [2020-12-23 11:27:58,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f59126f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:27:58, skipping insertion in model container [2020-12-23 11:27:58,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:27:58" (1/1) ... [2020-12-23 11:27:58,365 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 11:27:58,458 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[~ep12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ep13~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ep21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ep23~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ep31~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ep32~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~nl1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~newmax1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~nl2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~newmax2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~nl3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~newmax3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__r121~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r131~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r211~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r231~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r311~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r321~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r122~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r132~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r212~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r232~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___3~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r312~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___4~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r322~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___5~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_1868~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p12_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__newmax~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p12_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p13_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__newmax~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p21_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p23_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__newmax~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p31_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p32_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_2014~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__newmax~1,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__newmax~1,] left hand side expression in assignment: lhs: VariableLHS[~m1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__newmax~1,] left hand side expression in assignment: lhs: VariableLHS[~newmax1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__newmax~1,] left hand side expression in assignment: lhs: VariableLHS[~r2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__newmax~1,] left hand side expression in assignment: lhs: VariableLHS[~m2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__newmax~1,] left hand side expression in assignment: lhs: VariableLHS[~newmax2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__newmax~1,] left hand side expression in assignment: lhs: VariableLHS[~r3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__newmax~1,] left hand side expression in assignment: lhs: VariableLHS[~m3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__newmax~1,] left hand side expression in assignment: lhs: VariableLHS[~newmax3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_2147~0,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,] left hand side expression in assignment: lhs: VariableLHS[~node1__newmax~2,] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__newmax~2,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p21_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p23_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__newmax~2,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p31_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p32_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~__return_2263~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_3~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~2,] left hand side expression in assignment: lhs: VariableLHS[~node1__newmax~3,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__newmax~3,] left hand side expression in assignment: lhs: VariableLHS[~m1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__newmax~3,] left hand side expression in assignment: lhs: VariableLHS[~newmax1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__newmax~3,] left hand side expression in assignment: lhs: VariableLHS[~r2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__newmax~3,] left hand side expression in assignment: lhs: VariableLHS[~m2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__newmax~3,] left hand side expression in assignment: lhs: VariableLHS[~newmax2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__newmax~3,] left hand side expression in assignment: lhs: VariableLHS[~r3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__newmax~3,] left hand side expression in assignment: lhs: VariableLHS[~m3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__newmax~3,] left hand side expression in assignment: lhs: VariableLHS[~newmax3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~__return_2401~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_4~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~3,] [2020-12-23 11:27:58,886 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_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[15036,15049] left hand side expression in assignment: lhs: VariableLHS[~node1__newmax~4,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__newmax~4,] left hand side expression in assignment: lhs: VariableLHS[~m1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__newmax~4,] left hand side expression in assignment: lhs: VariableLHS[~newmax1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__newmax~4,] left hand side expression in assignment: lhs: VariableLHS[~r2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__newmax~4,] left hand side expression in assignment: lhs: VariableLHS[~m2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__newmax~4,] left hand side expression in assignment: lhs: VariableLHS[~newmax2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__newmax~4,] left hand side expression in assignment: lhs: VariableLHS[~r3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__newmax~4,] left hand side expression in assignment: lhs: VariableLHS[~m3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__newmax~4,] left hand side expression in assignment: lhs: VariableLHS[~newmax3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~__return_2526~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~nl3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~p31_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~2,] left hand side expression in assignment: lhs: VariableLHS[~p32_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_1~2,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~nl2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~p21_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~2,] left hand side expression in assignment: lhs: VariableLHS[~p23_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_1~2,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~nl1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p12_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p13_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_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~nl3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~nl2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~nl1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node2____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[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___4~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___4~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___4~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___3~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___3~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___3~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] [2020-12-23 11:27:59,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 11:27:59,023 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[~ep12~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ep13~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ep21~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ep23~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ep31~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~ep32~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~nl1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~newmax1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~nl2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~newmax2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~nl3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~newmax3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__r121~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r131~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r211~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r231~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r311~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r321~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r122~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r132~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r212~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r232~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___3~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r312~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___4~0,] left hand side expression in assignment: lhs: VariableLHS[~init__r322~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___5~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_1868~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p12_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__newmax~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p12_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p13_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__newmax~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p21_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p23_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__newmax~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p31_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p32_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_2014~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__newmax~1,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__newmax~1,] left hand side expression in assignment: lhs: VariableLHS[~m1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__newmax~1,] left hand side expression in assignment: lhs: VariableLHS[~newmax1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__newmax~1,] left hand side expression in assignment: lhs: VariableLHS[~r2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__newmax~1,] left hand side expression in assignment: lhs: VariableLHS[~m2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__newmax~1,] left hand side expression in assignment: lhs: VariableLHS[~newmax2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__newmax~1,] left hand side expression in assignment: lhs: VariableLHS[~r3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__newmax~1,] left hand side expression in assignment: lhs: VariableLHS[~m3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__newmax~1,] left hand side expression in assignment: lhs: VariableLHS[~newmax3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_2147~0,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,] left hand side expression in assignment: lhs: VariableLHS[~node1__newmax~2,] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__newmax~2,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p21_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p23_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__newmax~2,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p31_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p32_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~__return_2263~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_3~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~2,] left hand side expression in assignment: lhs: VariableLHS[~node1__newmax~3,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__newmax~3,] left hand side expression in assignment: lhs: VariableLHS[~m1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__newmax~3,] left hand side expression in assignment: lhs: VariableLHS[~newmax1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__newmax~3,] left hand side expression in assignment: lhs: VariableLHS[~r2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__newmax~3,] left hand side expression in assignment: lhs: VariableLHS[~m2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__newmax~3,] left hand side expression in assignment: lhs: VariableLHS[~newmax2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__newmax~3,] left hand side expression in assignment: lhs: VariableLHS[~r3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__newmax~3,] left hand side expression in assignment: lhs: VariableLHS[~m3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__newmax~3,] left hand side expression in assignment: lhs: VariableLHS[~newmax3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~__return_2401~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_4~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~3,] [2020-12-23 11:27:59,276 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_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[15036,15049] left hand side expression in assignment: lhs: VariableLHS[~node1__newmax~4,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__newmax~4,] left hand side expression in assignment: lhs: VariableLHS[~m1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__newmax~4,] left hand side expression in assignment: lhs: VariableLHS[~newmax1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__newmax~4,] left hand side expression in assignment: lhs: VariableLHS[~r2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__newmax~4,] left hand side expression in assignment: lhs: VariableLHS[~m2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__newmax~4,] left hand side expression in assignment: lhs: VariableLHS[~newmax2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__newmax~4,] left hand side expression in assignment: lhs: VariableLHS[~r3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~m3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__newmax~4,] left hand side expression in assignment: lhs: VariableLHS[~m3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~max3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__newmax~4,] left hand side expression in assignment: lhs: VariableLHS[~newmax3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p12_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p13_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p21_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p23_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p31_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p32_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~__return_2526~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~nl3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~p31_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~2,] left hand side expression in assignment: lhs: VariableLHS[~p32_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_1~2,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~nl2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~p21_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~2,] left hand side expression in assignment: lhs: VariableLHS[~p23_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_1~2,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~2,] left hand side expression in assignment: lhs: VariableLHS[~nl1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p12_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p13_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_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~nl3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~nl2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~nl1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node2____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[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___4~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___4~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___4~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___3~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___3~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___3~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] [2020-12-23 11:27:59,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 11:27:59,370 INFO L208 MainTranslator]: Completed translation [2020-12-23 11:27:59,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:27:59 WrapperNode [2020-12-23 11:27:59,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 11:27:59,372 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 11:27:59,372 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 11:27:59,372 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 11:27:59,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:27:59" (1/1) ... [2020-12-23 11:27:59,401 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:27:59" (1/1) ... [2020-12-23 11:27:59,503 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 11:27:59,504 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 11:27:59,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 11:27:59,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 11:27:59,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:27:59" (1/1) ... [2020-12-23 11:27:59,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:27:59" (1/1) ... [2020-12-23 11:27:59,521 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:27:59" (1/1) ... [2020-12-23 11:27:59,522 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:27:59" (1/1) ... [2020-12-23 11:27:59,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:27:59" (1/1) ... [2020-12-23 11:27:59,554 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:27:59" (1/1) ... [2020-12-23 11:27:59,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:27:59" (1/1) ... [2020-12-23 11:27:59,574 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 11:27:59,575 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 11:27:59,575 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 11:27:59,575 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 11:27:59,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:27:59" (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 11:27:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 11:27:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 11:27:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 11:27:59,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 11:28:01,394 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 11:28:01,394 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-23 11:28:01,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:28:01 BoogieIcfgContainer [2020-12-23 11:28:01,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 11:28:01,399 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 11:28:01,399 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 11:28:01,403 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 11:28:01,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 11:27:58" (1/3) ... [2020-12-23 11:28:01,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e64dd86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:28:01, skipping insertion in model container [2020-12-23 11:28:01,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:27:59" (2/3) ... [2020-12-23 11:28:01,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e64dd86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:28:01, skipping insertion in model container [2020-12-23 11:28:01,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:28:01" (3/3) ... [2020-12-23 11:28:01,407 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2020-12-23 11:28:01,414 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 11:28:01,420 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 11:28:01,440 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 11:28:01,472 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 11:28:01,472 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 11:28:01,472 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 11:28:01,472 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 11:28:01,473 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 11:28:01,473 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 11:28:01,473 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 11:28:01,473 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 11:28:01,499 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states. [2020-12-23 11:28:01,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-12-23 11:28:01,516 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:28:01,517 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:28:01,518 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:28:01,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:28:01,525 INFO L82 PathProgramCache]: Analyzing trace with hash 1173717287, now seen corresponding path program 1 times [2020-12-23 11:28:01,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:28:01,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811650906] [2020-12-23 11:28:01,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:28:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:28:02,318 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 11:28:02,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811650906] [2020-12-23 11:28:02,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:28:02,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:28:02,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753212132] [2020-12-23 11:28:02,326 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:28:02,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:28:02,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:28:02,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:28:02,344 INFO L87 Difference]: Start difference. First operand 331 states. Second operand 3 states. [2020-12-23 11:28:02,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:28:02,572 INFO L93 Difference]: Finished difference Result 640 states and 1112 transitions. [2020-12-23 11:28:02,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:28:02,583 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 152 [2020-12-23 11:28:02,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:28:02,616 INFO L225 Difference]: With dead ends: 640 [2020-12-23 11:28:02,617 INFO L226 Difference]: Without dead ends: 523 [2020-12-23 11:28:02,622 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 11:28:02,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2020-12-23 11:28:02,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 521. [2020-12-23 11:28:02,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 521 states. [2020-12-23 11:28:02,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 776 transitions. [2020-12-23 11:28:02,718 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 776 transitions. Word has length 152 [2020-12-23 11:28:02,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:28:02,719 INFO L481 AbstractCegarLoop]: Abstraction has 521 states and 776 transitions. [2020-12-23 11:28:02,719 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:28:02,719 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 776 transitions. [2020-12-23 11:28:02,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-12-23 11:28:02,724 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:28:02,725 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:28:02,725 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 11:28:02,725 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:28:02,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:28:02,726 INFO L82 PathProgramCache]: Analyzing trace with hash 341515684, now seen corresponding path program 1 times [2020-12-23 11:28:02,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:28:02,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752803625] [2020-12-23 11:28:02,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:28:02,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:28:03,171 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 11:28:03,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752803625] [2020-12-23 11:28:03,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:28:03,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 11:28:03,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238660992] [2020-12-23 11:28:03,178 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 11:28:03,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:28:03,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 11:28:03,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 11:28:03,182 INFO L87 Difference]: Start difference. First operand 521 states and 776 transitions. Second operand 4 states. [2020-12-23 11:28:03,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:28:03,372 INFO L93 Difference]: Finished difference Result 1528 states and 2269 transitions. [2020-12-23 11:28:03,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 11:28:03,373 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 152 [2020-12-23 11:28:03,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:28:03,380 INFO L225 Difference]: With dead ends: 1528 [2020-12-23 11:28:03,381 INFO L226 Difference]: Without dead ends: 1016 [2020-12-23 11:28:03,389 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:28:03,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2020-12-23 11:28:03,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 1014. [2020-12-23 11:28:03,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1014 states. [2020-12-23 11:28:03,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1014 states to 1014 states and 1497 transitions. [2020-12-23 11:28:03,486 INFO L78 Accepts]: Start accepts. Automaton has 1014 states and 1497 transitions. Word has length 152 [2020-12-23 11:28:03,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:28:03,489 INFO L481 AbstractCegarLoop]: Abstraction has 1014 states and 1497 transitions. [2020-12-23 11:28:03,489 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 11:28:03,489 INFO L276 IsEmpty]: Start isEmpty. Operand 1014 states and 1497 transitions. [2020-12-23 11:28:03,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-12-23 11:28:03,500 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:28:03,501 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:28:03,501 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 11:28:03,502 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:28:03,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:28:03,507 INFO L82 PathProgramCache]: Analyzing trace with hash -1004817416, now seen corresponding path program 1 times [2020-12-23 11:28:03,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:28:03,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631093072] [2020-12-23 11:28:03,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:28:03,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:28:03,595 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 11:28:03,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631093072] [2020-12-23 11:28:03,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:28:03,596 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:28:03,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551006342] [2020-12-23 11:28:03,597 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:28:03,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:28:03,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:28:03,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:28:03,599 INFO L87 Difference]: Start difference. First operand 1014 states and 1497 transitions. Second operand 3 states. [2020-12-23 11:28:03,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:28:03,712 INFO L93 Difference]: Finished difference Result 3004 states and 4429 transitions. [2020-12-23 11:28:03,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:28:03,713 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-12-23 11:28:03,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:28:03,726 INFO L225 Difference]: With dead ends: 3004 [2020-12-23 11:28:03,726 INFO L226 Difference]: Without dead ends: 2018 [2020-12-23 11:28:03,729 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 11:28:03,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2018 states. [2020-12-23 11:28:03,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2018 to 1016. [2020-12-23 11:28:03,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1016 states. [2020-12-23 11:28:03,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1499 transitions. [2020-12-23 11:28:03,819 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1499 transitions. Word has length 153 [2020-12-23 11:28:03,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:28:03,826 INFO L481 AbstractCegarLoop]: Abstraction has 1016 states and 1499 transitions. [2020-12-23 11:28:03,826 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:28:03,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1499 transitions. [2020-12-23 11:28:03,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-12-23 11:28:03,829 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:28:03,829 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:28:03,829 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 11:28:03,829 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:28:03,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:28:03,831 INFO L82 PathProgramCache]: Analyzing trace with hash -703528603, now seen corresponding path program 1 times [2020-12-23 11:28:03,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:28:03,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238827240] [2020-12-23 11:28:03,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:28:03,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:28:04,148 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 11:28:04,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238827240] [2020-12-23 11:28:04,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:28:04,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 11:28:04,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041282036] [2020-12-23 11:28:04,151 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 11:28:04,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:28:04,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 11:28:04,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 11:28:04,154 INFO L87 Difference]: Start difference. First operand 1016 states and 1499 transitions. Second operand 4 states. [2020-12-23 11:28:04,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:28:04,444 INFO L93 Difference]: Finished difference Result 2934 states and 4309 transitions. [2020-12-23 11:28:04,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 11:28:04,445 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-12-23 11:28:04,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:28:04,463 INFO L225 Difference]: With dead ends: 2934 [2020-12-23 11:28:04,463 INFO L226 Difference]: Without dead ends: 1948 [2020-12-23 11:28:04,467 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:28:04,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1948 states. [2020-12-23 11:28:04,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1948 to 1946. [2020-12-23 11:28:04,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1946 states. [2020-12-23 11:28:04,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1946 states to 1946 states and 2834 transitions. [2020-12-23 11:28:04,645 INFO L78 Accepts]: Start accepts. Automaton has 1946 states and 2834 transitions. Word has length 154 [2020-12-23 11:28:04,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:28:04,648 INFO L481 AbstractCegarLoop]: Abstraction has 1946 states and 2834 transitions. [2020-12-23 11:28:04,648 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 11:28:04,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1946 states and 2834 transitions. [2020-12-23 11:28:04,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-12-23 11:28:04,653 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:28:04,653 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:28:04,653 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 11:28:04,654 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:28:04,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:28:04,654 INFO L82 PathProgramCache]: Analyzing trace with hash -1206556903, now seen corresponding path program 1 times [2020-12-23 11:28:04,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:28:04,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085656179] [2020-12-23 11:28:04,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:28:04,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:28:04,754 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 11:28:04,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085656179] [2020-12-23 11:28:04,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:28:04,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:28:04,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413801032] [2020-12-23 11:28:04,756 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:28:04,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:28:04,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:28:04,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:28:04,758 INFO L87 Difference]: Start difference. First operand 1946 states and 2834 transitions. Second operand 3 states. [2020-12-23 11:28:05,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:28:05,077 INFO L93 Difference]: Finished difference Result 5762 states and 8382 transitions. [2020-12-23 11:28:05,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:28:05,080 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2020-12-23 11:28:05,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:28:05,101 INFO L225 Difference]: With dead ends: 5762 [2020-12-23 11:28:05,102 INFO L226 Difference]: Without dead ends: 3860 [2020-12-23 11:28:05,108 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 11:28:05,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3860 states. [2020-12-23 11:28:05,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3860 to 1950. [2020-12-23 11:28:05,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1950 states. [2020-12-23 11:28:05,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1950 states to 1950 states and 2838 transitions. [2020-12-23 11:28:05,316 INFO L78 Accepts]: Start accepts. Automaton has 1950 states and 2838 transitions. Word has length 155 [2020-12-23 11:28:05,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:28:05,318 INFO L481 AbstractCegarLoop]: Abstraction has 1950 states and 2838 transitions. [2020-12-23 11:28:05,318 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:28:05,318 INFO L276 IsEmpty]: Start isEmpty. Operand 1950 states and 2838 transitions. [2020-12-23 11:28:05,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-12-23 11:28:05,322 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:28:05,323 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:28:05,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 11:28:05,323 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:28:05,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:28:05,324 INFO L82 PathProgramCache]: Analyzing trace with hash 109885862, now seen corresponding path program 1 times [2020-12-23 11:28:05,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:28:05,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602313501] [2020-12-23 11:28:05,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:28:05,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:28:05,587 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 11:28:05,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602313501] [2020-12-23 11:28:05,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:28:05,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 11:28:05,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340277874] [2020-12-23 11:28:05,589 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 11:28:05,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:28:05,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 11:28:05,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 11:28:05,590 INFO L87 Difference]: Start difference. First operand 1950 states and 2838 transitions. Second operand 4 states. [2020-12-23 11:28:05,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:28:05,969 INFO L93 Difference]: Finished difference Result 5638 states and 8174 transitions. [2020-12-23 11:28:05,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 11:28:05,970 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 156 [2020-12-23 11:28:05,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:28:05,991 INFO L225 Difference]: With dead ends: 5638 [2020-12-23 11:28:05,991 INFO L226 Difference]: Without dead ends: 3736 [2020-12-23 11:28:05,995 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:28:06,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3736 states. [2020-12-23 11:28:06,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3736 to 3734. [2020-12-23 11:28:06,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3734 states. [2020-12-23 11:28:06,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3734 states to 3734 states and 5360 transitions. [2020-12-23 11:28:06,373 INFO L78 Accepts]: Start accepts. Automaton has 3734 states and 5360 transitions. Word has length 156 [2020-12-23 11:28:06,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:28:06,374 INFO L481 AbstractCegarLoop]: Abstraction has 3734 states and 5360 transitions. [2020-12-23 11:28:06,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 11:28:06,374 INFO L276 IsEmpty]: Start isEmpty. Operand 3734 states and 5360 transitions. [2020-12-23 11:28:06,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-12-23 11:28:06,380 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:28:06,381 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:28:06,381 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 11:28:06,381 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:28:06,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:28:06,387 INFO L82 PathProgramCache]: Analyzing trace with hash -289159494, now seen corresponding path program 1 times [2020-12-23 11:28:06,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:28:06,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383737036] [2020-12-23 11:28:06,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:28:06,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:28:06,470 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 11:28:06,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383737036] [2020-12-23 11:28:06,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:28:06,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:28:06,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128307322] [2020-12-23 11:28:06,498 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:28:06,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:28:06,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:28:06,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:28:06,501 INFO L87 Difference]: Start difference. First operand 3734 states and 5360 transitions. Second operand 3 states. [2020-12-23 11:28:07,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:28:07,172 INFO L93 Difference]: Finished difference Result 10770 states and 15502 transitions. [2020-12-23 11:28:07,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:28:07,173 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2020-12-23 11:28:07,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:28:07,213 INFO L225 Difference]: With dead ends: 10770 [2020-12-23 11:28:07,214 INFO L226 Difference]: Without dead ends: 7376 [2020-12-23 11:28:07,222 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 11:28:07,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7376 states. [2020-12-23 11:28:07,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7376 to 3742. [2020-12-23 11:28:07,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3742 states. [2020-12-23 11:28:07,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 5368 transitions. [2020-12-23 11:28:07,609 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 5368 transitions. Word has length 157 [2020-12-23 11:28:07,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:28:07,609 INFO L481 AbstractCegarLoop]: Abstraction has 3742 states and 5368 transitions. [2020-12-23 11:28:07,609 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:28:07,609 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 5368 transitions. [2020-12-23 11:28:07,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-12-23 11:28:07,616 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:28:07,616 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:28:07,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 11:28:07,617 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:28:07,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:28:07,618 INFO L82 PathProgramCache]: Analyzing trace with hash 405722455, now seen corresponding path program 1 times [2020-12-23 11:28:07,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:28:07,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335213480] [2020-12-23 11:28:07,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:28:07,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:28:07,838 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 11:28:07,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335213480] [2020-12-23 11:28:07,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:28:07,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 11:28:07,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879521921] [2020-12-23 11:28:07,840 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 11:28:07,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:28:07,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 11:28:07,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:28:07,841 INFO L87 Difference]: Start difference. First operand 3742 states and 5368 transitions. Second operand 5 states. [2020-12-23 11:28:08,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:28:08,528 INFO L93 Difference]: Finished difference Result 10856 states and 15513 transitions. [2020-12-23 11:28:08,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 11:28:08,529 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 158 [2020-12-23 11:28:08,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:28:08,566 INFO L225 Difference]: With dead ends: 10856 [2020-12-23 11:28:08,566 INFO L226 Difference]: Without dead ends: 7202 [2020-12-23 11:28:08,573 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:28:08,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7202 states. [2020-12-23 11:28:09,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7202 to 7200. [2020-12-23 11:28:09,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7200 states. [2020-12-23 11:28:09,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7200 states to 7200 states and 10185 transitions. [2020-12-23 11:28:09,224 INFO L78 Accepts]: Start accepts. Automaton has 7200 states and 10185 transitions. Word has length 158 [2020-12-23 11:28:09,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:28:09,224 INFO L481 AbstractCegarLoop]: Abstraction has 7200 states and 10185 transitions. [2020-12-23 11:28:09,224 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 11:28:09,225 INFO L276 IsEmpty]: Start isEmpty. Operand 7200 states and 10185 transitions. [2020-12-23 11:28:09,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-12-23 11:28:09,235 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:28:09,236 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:28:09,236 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 11:28:09,236 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:28:09,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:28:09,237 INFO L82 PathProgramCache]: Analyzing trace with hash 427918951, now seen corresponding path program 1 times [2020-12-23 11:28:09,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:28:09,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309086212] [2020-12-23 11:28:09,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:28:09,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:28:09,427 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 11:28:09,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309086212] [2020-12-23 11:28:09,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:28:09,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 11:28:09,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613523097] [2020-12-23 11:28:09,429 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 11:28:09,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:28:09,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 11:28:09,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 11:28:09,431 INFO L87 Difference]: Start difference. First operand 7200 states and 10185 transitions. Second operand 4 states. [2020-12-23 11:28:09,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:28:09,971 INFO L93 Difference]: Finished difference Result 12624 states and 17845 transitions. [2020-12-23 11:28:09,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 11:28:09,972 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 158 [2020-12-23 11:28:09,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:28:09,988 INFO L225 Difference]: With dead ends: 12624 [2020-12-23 11:28:09,988 INFO L226 Difference]: Without dead ends: 5498 [2020-12-23 11:28:09,999 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:28:10,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5498 states. [2020-12-23 11:28:10,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5498 to 5498. [2020-12-23 11:28:10,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5498 states. [2020-12-23 11:28:10,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5498 states to 5498 states and 7763 transitions. [2020-12-23 11:28:10,516 INFO L78 Accepts]: Start accepts. Automaton has 5498 states and 7763 transitions. Word has length 158 [2020-12-23 11:28:10,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:28:10,516 INFO L481 AbstractCegarLoop]: Abstraction has 5498 states and 7763 transitions. [2020-12-23 11:28:10,516 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 11:28:10,517 INFO L276 IsEmpty]: Start isEmpty. Operand 5498 states and 7763 transitions. [2020-12-23 11:28:10,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-12-23 11:28:10,525 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:28:10,525 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:28:10,525 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 11:28:10,526 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:28:10,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:28:10,526 INFO L82 PathProgramCache]: Analyzing trace with hash -479009960, now seen corresponding path program 1 times [2020-12-23 11:28:10,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:28:10,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590718909] [2020-12-23 11:28:10,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:28:10,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:28:10,600 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 11:28:10,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590718909] [2020-12-23 11:28:10,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:28:10,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:28:10,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052862482] [2020-12-23 11:28:10,602 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:28:10,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:28:10,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:28:10,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:28:10,603 INFO L87 Difference]: Start difference. First operand 5498 states and 7763 transitions. Second operand 3 states. [2020-12-23 11:28:11,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:28:11,212 INFO L93 Difference]: Finished difference Result 12146 states and 17705 transitions. [2020-12-23 11:28:11,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:28:11,213 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-12-23 11:28:11,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:28:11,232 INFO L225 Difference]: With dead ends: 12146 [2020-12-23 11:28:11,232 INFO L226 Difference]: Without dead ends: 7260 [2020-12-23 11:28:11,242 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:28:11,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7260 states. [2020-12-23 11:28:11,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7260 to 7114. [2020-12-23 11:28:11,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7114 states. [2020-12-23 11:28:11,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7114 states to 7114 states and 10371 transitions. [2020-12-23 11:28:11,934 INFO L78 Accepts]: Start accepts. Automaton has 7114 states and 10371 transitions. Word has length 159 [2020-12-23 11:28:11,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:28:11,934 INFO L481 AbstractCegarLoop]: Abstraction has 7114 states and 10371 transitions. [2020-12-23 11:28:11,934 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:28:11,934 INFO L276 IsEmpty]: Start isEmpty. Operand 7114 states and 10371 transitions. [2020-12-23 11:28:11,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-12-23 11:28:11,944 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:28:11,944 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:28:11,944 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 11:28:11,945 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:28:11,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:28:11,945 INFO L82 PathProgramCache]: Analyzing trace with hash -513222824, now seen corresponding path program 1 times [2020-12-23 11:28:11,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:28:11,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069080199] [2020-12-23 11:28:11,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:28:12,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:28:12,268 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 11:28:12,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069080199] [2020-12-23 11:28:12,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:28:12,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-23 11:28:12,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822004117] [2020-12-23 11:28:12,269 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 11:28:12,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:28:12,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 11:28:12,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-23 11:28:12,272 INFO L87 Difference]: Start difference. First operand 7114 states and 10371 transitions. Second operand 9 states. [2020-12-23 11:28:15,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:28:15,860 INFO L93 Difference]: Finished difference Result 31490 states and 47926 transitions. [2020-12-23 11:28:15,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-23 11:28:15,861 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 162 [2020-12-23 11:28:15,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:28:15,921 INFO L225 Difference]: With dead ends: 31490 [2020-12-23 11:28:15,921 INFO L226 Difference]: Without dead ends: 25126 [2020-12-23 11:28:15,936 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=221, Unknown=0, NotChecked=0, Total=342 [2020-12-23 11:28:15,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25126 states. [2020-12-23 11:28:17,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25126 to 17214. [2020-12-23 11:28:17,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17214 states. [2020-12-23 11:28:17,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17214 states to 17214 states and 25613 transitions. [2020-12-23 11:28:17,754 INFO L78 Accepts]: Start accepts. Automaton has 17214 states and 25613 transitions. Word has length 162 [2020-12-23 11:28:17,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:28:17,754 INFO L481 AbstractCegarLoop]: Abstraction has 17214 states and 25613 transitions. [2020-12-23 11:28:17,755 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 11:28:17,755 INFO L276 IsEmpty]: Start isEmpty. Operand 17214 states and 25613 transitions. [2020-12-23 11:28:17,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-12-23 11:28:17,773 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:28:17,773 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:28:17,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-23 11:28:17,774 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:28:17,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:28:17,775 INFO L82 PathProgramCache]: Analyzing trace with hash -707459681, now seen corresponding path program 1 times [2020-12-23 11:28:17,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:28:17,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975102338] [2020-12-23 11:28:17,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:28:17,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:28:18,013 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 11:28:18,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975102338] [2020-12-23 11:28:18,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:28:18,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 11:28:18,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144341430] [2020-12-23 11:28:18,015 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 11:28:18,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:28:18,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 11:28:18,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 11:28:18,016 INFO L87 Difference]: Start difference. First operand 17214 states and 25613 transitions. Second operand 4 states. [2020-12-23 11:28:19,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:28:19,900 INFO L93 Difference]: Finished difference Result 33258 states and 51099 transitions. [2020-12-23 11:28:19,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 11:28:19,901 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 162 [2020-12-23 11:28:19,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:28:19,957 INFO L225 Difference]: With dead ends: 33258 [2020-12-23 11:28:19,957 INFO L226 Difference]: Without dead ends: 21376 [2020-12-23 11:28:19,975 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 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 11:28:19,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21376 states. [2020-12-23 11:28:21,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21376 to 21374. [2020-12-23 11:28:21,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21374 states. [2020-12-23 11:28:21,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21374 states to 21374 states and 32025 transitions. [2020-12-23 11:28:21,480 INFO L78 Accepts]: Start accepts. Automaton has 21374 states and 32025 transitions. Word has length 162 [2020-12-23 11:28:21,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:28:21,481 INFO L481 AbstractCegarLoop]: Abstraction has 21374 states and 32025 transitions. [2020-12-23 11:28:21,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 11:28:21,481 INFO L276 IsEmpty]: Start isEmpty. Operand 21374 states and 32025 transitions. [2020-12-23 11:28:21,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-12-23 11:28:21,498 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:28:21,498 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:28:21,498 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-23 11:28:21,498 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:28:21,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:28:21,499 INFO L82 PathProgramCache]: Analyzing trace with hash -286071921, now seen corresponding path program 1 times [2020-12-23 11:28:21,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:28:21,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778483808] [2020-12-23 11:28:21,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:28:21,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:28:21,665 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 11:28:21,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778483808] [2020-12-23 11:28:21,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:28:21,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 11:28:21,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795275303] [2020-12-23 11:28:21,667 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 11:28:21,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:28:21,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 11:28:21,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 11:28:21,668 INFO L87 Difference]: Start difference. First operand 21374 states and 32025 transitions. Second operand 4 states. [2020-12-23 11:28:24,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:28:24,718 INFO L93 Difference]: Finished difference Result 56244 states and 84126 transitions. [2020-12-23 11:28:24,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 11:28:24,718 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 162 [2020-12-23 11:28:24,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:28:24,811 INFO L225 Difference]: With dead ends: 56244 [2020-12-23 11:28:24,812 INFO L226 Difference]: Without dead ends: 35002 [2020-12-23 11:28:24,851 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:28:24,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35002 states. [2020-12-23 11:28:27,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35002 to 35000. [2020-12-23 11:28:27,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35000 states. [2020-12-23 11:28:27,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35000 states to 35000 states and 51739 transitions. [2020-12-23 11:28:27,638 INFO L78 Accepts]: Start accepts. Automaton has 35000 states and 51739 transitions. Word has length 162 [2020-12-23 11:28:27,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:28:27,638 INFO L481 AbstractCegarLoop]: Abstraction has 35000 states and 51739 transitions. [2020-12-23 11:28:27,638 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 11:28:27,638 INFO L276 IsEmpty]: Start isEmpty. Operand 35000 states and 51739 transitions. [2020-12-23 11:28:27,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-12-23 11:28:27,656 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:28:27,656 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:28:27,657 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-23 11:28:27,657 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:28:27,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:28:27,657 INFO L82 PathProgramCache]: Analyzing trace with hash 540747690, now seen corresponding path program 1 times [2020-12-23 11:28:27,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:28:27,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254891610] [2020-12-23 11:28:27,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:28:27,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:28:27,798 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 11:28:27,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254891610] [2020-12-23 11:28:27,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:28:27,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 11:28:27,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205679205] [2020-12-23 11:28:27,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 11:28:27,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:28:27,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 11:28:27,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 11:28:27,800 INFO L87 Difference]: Start difference. First operand 35000 states and 51739 transitions. Second operand 4 states. [2020-12-23 11:28:30,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:28:30,264 INFO L93 Difference]: Finished difference Result 62916 states and 93045 transitions. [2020-12-23 11:28:30,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 11:28:30,265 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 164 [2020-12-23 11:28:30,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:28:30,318 INFO L225 Difference]: With dead ends: 62916 [2020-12-23 11:28:30,323 INFO L226 Difference]: Without dead ends: 35000 [2020-12-23 11:28:30,370 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:28:30,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35000 states. [2020-12-23 11:28:33,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35000 to 35000. [2020-12-23 11:28:33,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35000 states. [2020-12-23 11:28:33,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35000 states to 35000 states and 51738 transitions. [2020-12-23 11:28:33,089 INFO L78 Accepts]: Start accepts. Automaton has 35000 states and 51738 transitions. Word has length 164 [2020-12-23 11:28:33,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:28:33,089 INFO L481 AbstractCegarLoop]: Abstraction has 35000 states and 51738 transitions. [2020-12-23 11:28:33,089 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 11:28:33,089 INFO L276 IsEmpty]: Start isEmpty. Operand 35000 states and 51738 transitions. [2020-12-23 11:28:33,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-12-23 11:28:33,105 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:28:33,105 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:28:33,106 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-23 11:28:33,106 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:28:33,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:28:33,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1686107341, now seen corresponding path program 1 times [2020-12-23 11:28:33,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:28:33,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984005590] [2020-12-23 11:28:33,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:28:33,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:28:33,209 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 11:28:33,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984005590] [2020-12-23 11:28:33,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:28:33,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:28:33,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441625644] [2020-12-23 11:28:33,211 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:28:33,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:28:33,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:28:33,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:28:33,212 INFO L87 Difference]: Start difference. First operand 35000 states and 51738 transitions. Second operand 3 states. [2020-12-23 11:28:37,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:28:37,063 INFO L93 Difference]: Finished difference Result 87989 states and 130465 transitions. [2020-12-23 11:28:37,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:28:37,064 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 164 [2020-12-23 11:28:37,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:28:37,156 INFO L225 Difference]: With dead ends: 87989 [2020-12-23 11:28:37,156 INFO L226 Difference]: Without dead ends: 54467 [2020-12-23 11:28:37,295 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 11:28:37,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54467 states. [2020-12-23 11:28:41,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54467 to 54465. [2020-12-23 11:28:41,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54465 states. [2020-12-23 11:28:41,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54465 states to 54465 states and 79575 transitions. [2020-12-23 11:28:41,518 INFO L78 Accepts]: Start accepts. Automaton has 54465 states and 79575 transitions. Word has length 164 [2020-12-23 11:28:41,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:28:41,518 INFO L481 AbstractCegarLoop]: Abstraction has 54465 states and 79575 transitions. [2020-12-23 11:28:41,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:28:41,518 INFO L276 IsEmpty]: Start isEmpty. Operand 54465 states and 79575 transitions. [2020-12-23 11:28:41,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-12-23 11:28:41,539 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:28:41,540 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:28:41,540 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-23 11:28:41,540 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:28:41,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:28:41,541 INFO L82 PathProgramCache]: Analyzing trace with hash -578160281, now seen corresponding path program 1 times [2020-12-23 11:28:41,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:28:41,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044886307] [2020-12-23 11:28:41,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:28:41,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:28:41,639 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 11:28:41,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044886307] [2020-12-23 11:28:41,641 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:28:41,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:28:41,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194094250] [2020-12-23 11:28:41,642 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:28:41,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:28:41,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:28:41,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:28:41,643 INFO L87 Difference]: Start difference. First operand 54465 states and 79575 transitions. Second operand 3 states. [2020-12-23 11:28:47,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:28:47,714 INFO L93 Difference]: Finished difference Result 126465 states and 186745 transitions. [2020-12-23 11:28:47,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:28:47,714 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 168 [2020-12-23 11:28:47,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:28:47,847 INFO L225 Difference]: With dead ends: 126465 [2020-12-23 11:28:47,847 INFO L226 Difference]: Without dead ends: 82761 [2020-12-23 11:28:47,886 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 11:28:47,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82761 states. [2020-12-23 11:28:54,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82761 to 75831. [2020-12-23 11:28:54,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75831 states. [2020-12-23 11:28:54,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75831 states to 75831 states and 113043 transitions. [2020-12-23 11:28:54,391 INFO L78 Accepts]: Start accepts. Automaton has 75831 states and 113043 transitions. Word has length 168 [2020-12-23 11:28:54,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:28:54,391 INFO L481 AbstractCegarLoop]: Abstraction has 75831 states and 113043 transitions. [2020-12-23 11:28:54,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:28:54,391 INFO L276 IsEmpty]: Start isEmpty. Operand 75831 states and 113043 transitions. [2020-12-23 11:28:54,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-12-23 11:28:54,406 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:28:54,406 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:28:54,406 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-23 11:28:54,406 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:28:54,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:28:54,407 INFO L82 PathProgramCache]: Analyzing trace with hash -643945913, now seen corresponding path program 1 times [2020-12-23 11:28:54,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:28:54,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515860193] [2020-12-23 11:28:54,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:28:54,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:28:54,470 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 11:28:54,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515860193] [2020-12-23 11:28:54,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:28:54,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:28:54,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438625582] [2020-12-23 11:28:54,472 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:28:54,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:28:54,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:28:54,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:28:54,473 INFO L87 Difference]: Start difference. First operand 75831 states and 113043 transitions. Second operand 3 states. [2020-12-23 11:29:05,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:29:05,638 INFO L93 Difference]: Finished difference Result 216233 states and 324643 transitions. [2020-12-23 11:29:05,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:29:05,642 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 168 [2020-12-23 11:29:05,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:29:05,949 INFO L225 Difference]: With dead ends: 216233 [2020-12-23 11:29:05,949 INFO L226 Difference]: Without dead ends: 149809 [2020-12-23 11:29:06,034 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 11:29:06,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149809 states. [2020-12-23 11:29:17,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149809 to 149807. [2020-12-23 11:29:17,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149807 states. [2020-12-23 11:29:18,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149807 states to 149807 states and 222567 transitions. [2020-12-23 11:29:18,088 INFO L78 Accepts]: Start accepts. Automaton has 149807 states and 222567 transitions. Word has length 168 [2020-12-23 11:29:18,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:29:18,088 INFO L481 AbstractCegarLoop]: Abstraction has 149807 states and 222567 transitions. [2020-12-23 11:29:18,089 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:29:18,089 INFO L276 IsEmpty]: Start isEmpty. Operand 149807 states and 222567 transitions. [2020-12-23 11:29:18,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-12-23 11:29:18,130 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:29:18,130 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:29:18,130 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-23 11:29:18,131 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:29:18,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:29:18,131 INFO L82 PathProgramCache]: Analyzing trace with hash -2103295540, now seen corresponding path program 1 times [2020-12-23 11:29:18,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:29:18,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161769885] [2020-12-23 11:29:18,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:29:18,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:29:18,355 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 11:29:18,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161769885] [2020-12-23 11:29:18,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:29:18,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 11:29:18,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656971590] [2020-12-23 11:29:18,357 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 11:29:18,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:29:18,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 11:29:18,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 11:29:18,358 INFO L87 Difference]: Start difference. First operand 149807 states and 222567 transitions. Second operand 4 states. [2020-12-23 11:29:27,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:29:27,940 INFO L93 Difference]: Finished difference Result 266874 states and 396096 transitions. [2020-12-23 11:29:27,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 11:29:27,941 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 168 [2020-12-23 11:29:27,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:29:28,242 INFO L225 Difference]: With dead ends: 266874 [2020-12-23 11:29:28,242 INFO L226 Difference]: Without dead ends: 117125 [2020-12-23 11:29:28,342 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:29:28,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117125 states. [2020-12-23 11:29:37,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117125 to 117125. [2020-12-23 11:29:37,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117125 states. [2020-12-23 11:29:37,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117125 states to 117125 states and 173602 transitions. [2020-12-23 11:29:37,791 INFO L78 Accepts]: Start accepts. Automaton has 117125 states and 173602 transitions. Word has length 168 [2020-12-23 11:29:37,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:29:37,791 INFO L481 AbstractCegarLoop]: Abstraction has 117125 states and 173602 transitions. [2020-12-23 11:29:37,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 11:29:37,791 INFO L276 IsEmpty]: Start isEmpty. Operand 117125 states and 173602 transitions. [2020-12-23 11:29:38,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-12-23 11:29:38,048 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:29:38,051 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:29:38,051 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-23 11:29:38,051 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:29:38,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:29:38,052 INFO L82 PathProgramCache]: Analyzing trace with hash 688068991, now seen corresponding path program 1 times [2020-12-23 11:29:38,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:29:38,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420374374] [2020-12-23 11:29:38,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:29:38,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:29:38,183 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 11:29:38,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420374374] [2020-12-23 11:29:38,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:29:38,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:29:38,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139077917] [2020-12-23 11:29:38,184 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:29:38,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:29:38,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:29:38,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:29:38,185 INFO L87 Difference]: Start difference. First operand 117125 states and 173602 transitions. Second operand 3 states. [2020-12-23 11:29:53,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:29:53,173 INFO L93 Difference]: Finished difference Result 295491 states and 441138 transitions. [2020-12-23 11:29:53,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:29:53,174 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 170 [2020-12-23 11:29:53,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:29:53,662 INFO L225 Difference]: With dead ends: 295491 [2020-12-23 11:29:53,662 INFO L226 Difference]: Without dead ends: 194573 [2020-12-23 11:29:53,743 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 11:29:53,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194573 states. [2020-12-23 11:30:08,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194573 to 179331. [2020-12-23 11:30:08,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179331 states. [2020-12-23 11:30:09,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179331 states to 179331 states and 268958 transitions. [2020-12-23 11:30:09,462 INFO L78 Accepts]: Start accepts. Automaton has 179331 states and 268958 transitions. Word has length 170 [2020-12-23 11:30:09,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:30:09,462 INFO L481 AbstractCegarLoop]: Abstraction has 179331 states and 268958 transitions. [2020-12-23 11:30:09,463 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:30:09,463 INFO L276 IsEmpty]: Start isEmpty. Operand 179331 states and 268958 transitions. [2020-12-23 11:30:09,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-12-23 11:30:09,492 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:30:09,492 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:30:09,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-23 11:30:09,493 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:30:09,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:30:09,493 INFO L82 PathProgramCache]: Analyzing trace with hash -463479117, now seen corresponding path program 1 times [2020-12-23 11:30:09,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:30:09,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82412514] [2020-12-23 11:30:09,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:30:09,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:30:09,738 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 11:30:09,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82412514] [2020-12-23 11:30:09,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:30:09,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-23 11:30:09,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771152543] [2020-12-23 11:30:09,740 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 11:30:09,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:30:09,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 11:30:09,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-23 11:30:09,741 INFO L87 Difference]: Start difference. First operand 179331 states and 268958 transitions. Second operand 9 states.