/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_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 10:27:47,121 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 10:27:47,124 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 10:27:47,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 10:27:47,173 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 10:27:47,178 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 10:27:47,182 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 10:27:47,216 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 10:27:47,222 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 10:27:47,228 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 10:27:47,234 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 10:27:47,238 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 10:27:47,238 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 10:27:47,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 10:27:47,255 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 10:27:47,261 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 10:27:47,262 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 10:27:47,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 10:27:47,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 10:27:47,272 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 10:27:47,275 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 10:27:47,277 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 10:27:47,278 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 10:27:47,279 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 10:27:47,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 10:27:47,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 10:27:47,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 10:27:47,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 10:27:47,284 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 10:27:47,285 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 10:27:47,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 10:27:47,286 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 10:27:47,287 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 10:27:47,288 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 10:27:47,289 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 10:27:47,289 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 10:27:47,290 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 10:27:47,291 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 10:27:47,291 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 10:27:47,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 10:27:47,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 10:27:47,294 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 10:27:47,321 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 10:27:47,321 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 10:27:47,323 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 10:27:47,323 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 10:27:47,323 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 10:27:47,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 10:27:47,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 10:27:47,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 10:27:47,325 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 10:27:47,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 10:27:47,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 10:27:47,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 10:27:47,326 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 10:27:47,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 10:27:47,326 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 10:27:47,326 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 10:27:47,327 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 10:27:47,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 10:27:47,327 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 10:27:47,327 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 10:27:47,328 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 10:27:47,328 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 10:27:47,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 10:27:47,328 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 10:27:47,329 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 10:27:47,329 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 10:27:47,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 10:27:47,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 10:27:47,711 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 10:27:47,712 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 10:27:47,713 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 10:27:47,714 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2020-12-23 10:27:47,793 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/d88350683/b6fc31f9dc614c1384694700b8e46af2/FLAG8fa259f57 [2020-12-23 10:27:48,396 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 10:27:48,397 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2020-12-23 10:27:48,420 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/d88350683/b6fc31f9dc614c1384694700b8e46af2/FLAG8fa259f57 [2020-12-23 10:27:48,664 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/d88350683/b6fc31f9dc614c1384694700b8e46af2 [2020-12-23 10:27:48,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 10:27:48,671 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 10:27:48,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 10:27:48,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 10:27:48,679 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 10:27:48,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 10:27:48" (1/1) ... [2020-12-23 10:27:48,683 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61a9a679 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:27:48, skipping insertion in model container [2020-12-23 10:27:48,683 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 10:27:48" (1/1) ... [2020-12-23 10:27:48,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 10:27:48,762 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[~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[~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[~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_1709~0,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____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____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____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_1837~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~0,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~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[~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[~mode1~0,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[~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[~mode2~0,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[~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[~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_1955~0,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[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] 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____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_2060~0,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[~main__i2~0,] 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[~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[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,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[~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[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,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[~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[~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_2183~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_2184_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~2,] 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 10:27:49,249 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_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[13741,13754] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] 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[~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[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,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[~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[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,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[~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[~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_2292~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_2184_0~0,GLOBAL] 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[~__return_2197~0,GLOBAL] 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 10:27:49,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 10:27:49,394 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[~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[~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[~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_1709~0,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____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____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____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_1837~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~0,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~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[~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[~mode1~0,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[~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[~mode2~0,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[~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[~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_1955~0,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[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] 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____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_2060~0,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[~main__i2~0,] 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[~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[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,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[~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[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,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[~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[~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_2183~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_2184_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~2,] 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 10:27:49,562 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_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[13741,13754] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] 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[~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[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,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[~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[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,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[~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[~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_2292~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_2184_0~0,GLOBAL] 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[~__return_2197~0,GLOBAL] 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 10:27:49,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 10:27:49,638 INFO L208 MainTranslator]: Completed translation [2020-12-23 10:27:49,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:27:49 WrapperNode [2020-12-23 10:27:49,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 10:27:49,640 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 10:27:49,640 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 10:27:49,640 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 10:27:49,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:27:49" (1/1) ... [2020-12-23 10:27:49,673 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:27:49" (1/1) ... [2020-12-23 10:27:49,755 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 10:27:49,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 10:27:49,756 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 10:27:49,756 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 10:27:49,766 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:27:49" (1/1) ... [2020-12-23 10:27:49,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:27:49" (1/1) ... [2020-12-23 10:27:49,772 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:27:49" (1/1) ... [2020-12-23 10:27:49,772 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:27:49" (1/1) ... [2020-12-23 10:27:49,789 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:27:49" (1/1) ... [2020-12-23 10:27:49,802 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:27:49" (1/1) ... [2020-12-23 10:27:49,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:27:49" (1/1) ... [2020-12-23 10:27:49,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 10:27:49,816 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 10:27:49,816 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 10:27:49,816 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 10:27:49,817 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:27:49" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 10:27:49,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 10:27:49,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 10:27:49,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 10:27:49,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 10:27:51,156 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 10:27:51,157 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-23 10:27:51,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 10:27:51 BoogieIcfgContainer [2020-12-23 10:27:51,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 10:27:51,161 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 10:27:51,161 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 10:27:51,165 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 10:27:51,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 10:27:48" (1/3) ... [2020-12-23 10:27:51,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cdb862b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 10:27:51, skipping insertion in model container [2020-12-23 10:27:51,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:27:49" (2/3) ... [2020-12-23 10:27:51,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cdb862b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 10:27:51, skipping insertion in model container [2020-12-23 10:27:51,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 10:27:51" (3/3) ... [2020-12-23 10:27:51,168 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.4.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2020-12-23 10:27:51,175 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 10:27:51,180 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 10:27:51,199 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 10:27:51,231 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 10:27:51,232 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 10:27:51,232 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 10:27:51,232 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 10:27:51,232 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 10:27:51,232 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 10:27:51,232 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 10:27:51,232 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 10:27:51,253 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states. [2020-12-23 10:27:51,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-12-23 10:27:51,268 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:27:51,269 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] [2020-12-23 10:27:51,269 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:27:51,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:27:51,275 INFO L82 PathProgramCache]: Analyzing trace with hash -37487086, now seen corresponding path program 1 times [2020-12-23 10:27:51,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:27:51,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990539556] [2020-12-23 10:27:51,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:27:51,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:27:51,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:27:51,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990539556] [2020-12-23 10:27:51,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:27:51,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:27:51,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319997475] [2020-12-23 10:27:51,919 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:27:51,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:27:51,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:27:51,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:27:51,943 INFO L87 Difference]: Start difference. First operand 294 states. Second operand 3 states. [2020-12-23 10:27:52,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:27:52,173 INFO L93 Difference]: Finished difference Result 590 states and 1044 transitions. [2020-12-23 10:27:52,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:27:52,178 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 141 [2020-12-23 10:27:52,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:27:52,205 INFO L225 Difference]: With dead ends: 590 [2020-12-23 10:27:52,205 INFO L226 Difference]: Without dead ends: 473 [2020-12-23 10:27:52,209 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:27:52,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2020-12-23 10:27:52,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 471. [2020-12-23 10:27:52,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 471 states. [2020-12-23 10:27:52,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 702 transitions. [2020-12-23 10:27:52,301 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 702 transitions. Word has length 141 [2020-12-23 10:27:52,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:27:52,302 INFO L481 AbstractCegarLoop]: Abstraction has 471 states and 702 transitions. [2020-12-23 10:27:52,302 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:27:52,303 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 702 transitions. [2020-12-23 10:27:52,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-12-23 10:27:52,307 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:27:52,307 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] [2020-12-23 10:27:52,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 10:27:52,308 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:27:52,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:27:52,309 INFO L82 PathProgramCache]: Analyzing trace with hash -106858572, now seen corresponding path program 1 times [2020-12-23 10:27:52,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:27:52,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263560999] [2020-12-23 10:27:52,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:27:52,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:27:52,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:27:52,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263560999] [2020-12-23 10:27:52,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:27:52,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 10:27:52,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868548778] [2020-12-23 10:27:52,805 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 10:27:52,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:27:52,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 10:27:52,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 10:27:52,807 INFO L87 Difference]: Start difference. First operand 471 states and 702 transitions. Second operand 4 states. [2020-12-23 10:27:52,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:27:52,952 INFO L93 Difference]: Finished difference Result 1380 states and 2051 transitions. [2020-12-23 10:27:52,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 10:27:52,952 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 141 [2020-12-23 10:27:52,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:27:52,962 INFO L225 Difference]: With dead ends: 1380 [2020-12-23 10:27:52,962 INFO L226 Difference]: Without dead ends: 918 [2020-12-23 10:27:52,970 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 10:27:52,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states. [2020-12-23 10:27:53,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 916. [2020-12-23 10:27:53,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 916 states. [2020-12-23 10:27:53,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1352 transitions. [2020-12-23 10:27:53,072 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1352 transitions. Word has length 141 [2020-12-23 10:27:53,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:27:53,073 INFO L481 AbstractCegarLoop]: Abstraction has 916 states and 1352 transitions. [2020-12-23 10:27:53,073 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 10:27:53,073 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1352 transitions. [2020-12-23 10:27:53,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-12-23 10:27:53,082 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:27:53,083 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] [2020-12-23 10:27:53,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 10:27:53,085 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:27:53,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:27:53,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1746789024, now seen corresponding path program 1 times [2020-12-23 10:27:53,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:27:53,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906378596] [2020-12-23 10:27:53,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:27:53,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:27:53,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:27:53,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906378596] [2020-12-23 10:27:53,220 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:27:53,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:27:53,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184016204] [2020-12-23 10:27:53,222 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:27:53,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:27:53,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:27:53,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:27:53,227 INFO L87 Difference]: Start difference. First operand 916 states and 1352 transitions. Second operand 3 states. [2020-12-23 10:27:53,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:27:53,358 INFO L93 Difference]: Finished difference Result 2710 states and 3994 transitions. [2020-12-23 10:27:53,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:27:53,359 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-12-23 10:27:53,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:27:53,369 INFO L225 Difference]: With dead ends: 2710 [2020-12-23 10:27:53,369 INFO L226 Difference]: Without dead ends: 1822 [2020-12-23 10:27:53,371 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:27:53,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1822 states. [2020-12-23 10:27:53,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1822 to 918. [2020-12-23 10:27:53,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 918 states. [2020-12-23 10:27:53,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1354 transitions. [2020-12-23 10:27:53,442 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1354 transitions. Word has length 142 [2020-12-23 10:27:53,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:27:53,450 INFO L481 AbstractCegarLoop]: Abstraction has 918 states and 1354 transitions. [2020-12-23 10:27:53,451 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:27:53,451 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1354 transitions. [2020-12-23 10:27:53,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-12-23 10:27:53,456 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:27:53,457 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] [2020-12-23 10:27:53,457 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 10:27:53,457 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:27:53,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:27:53,459 INFO L82 PathProgramCache]: Analyzing trace with hash 463094692, now seen corresponding path program 1 times [2020-12-23 10:27:53,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:27:53,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287750014] [2020-12-23 10:27:53,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:27:53,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:27:53,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:27:53,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287750014] [2020-12-23 10:27:53,616 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:27:53,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:27:53,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146583203] [2020-12-23 10:27:53,617 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:27:53,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:27:53,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:27:53,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:27:53,619 INFO L87 Difference]: Start difference. First operand 918 states and 1354 transitions. Second operand 3 states. [2020-12-23 10:27:53,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:27:53,759 INFO L93 Difference]: Finished difference Result 2514 states and 3723 transitions. [2020-12-23 10:27:53,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:27:53,759 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 143 [2020-12-23 10:27:53,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:27:53,770 INFO L225 Difference]: With dead ends: 2514 [2020-12-23 10:27:53,770 INFO L226 Difference]: Without dead ends: 1774 [2020-12-23 10:27:53,772 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:27:53,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1774 states. [2020-12-23 10:27:53,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1774 to 1772. [2020-12-23 10:27:53,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1772 states. [2020-12-23 10:27:53,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1772 states to 1772 states and 2587 transitions. [2020-12-23 10:27:53,937 INFO L78 Accepts]: Start accepts. Automaton has 1772 states and 2587 transitions. Word has length 143 [2020-12-23 10:27:53,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:27:53,938 INFO L481 AbstractCegarLoop]: Abstraction has 1772 states and 2587 transitions. [2020-12-23 10:27:53,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:27:53,938 INFO L276 IsEmpty]: Start isEmpty. Operand 1772 states and 2587 transitions. [2020-12-23 10:27:53,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-12-23 10:27:53,942 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:27:53,943 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] [2020-12-23 10:27:53,943 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 10:27:53,943 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:27:53,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:27:53,944 INFO L82 PathProgramCache]: Analyzing trace with hash 2076257255, now seen corresponding path program 1 times [2020-12-23 10:27:53,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:27:53,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320001744] [2020-12-23 10:27:53,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:27:54,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:27:54,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:27:54,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320001744] [2020-12-23 10:27:54,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:27:54,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:27:54,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566227805] [2020-12-23 10:27:54,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 10:27:54,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:27:54,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 10:27:54,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:27:54,288 INFO L87 Difference]: Start difference. First operand 1772 states and 2587 transitions. Second operand 5 states. [2020-12-23 10:27:54,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:27:54,630 INFO L93 Difference]: Finished difference Result 5046 states and 7368 transitions. [2020-12-23 10:27:54,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 10:27:54,631 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2020-12-23 10:27:54,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:27:54,656 INFO L225 Difference]: With dead ends: 5046 [2020-12-23 10:27:54,656 INFO L226 Difference]: Without dead ends: 3288 [2020-12-23 10:27:54,661 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 10:27:54,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3288 states. [2020-12-23 10:27:54,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3288 to 3286. [2020-12-23 10:27:54,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3286 states. [2020-12-23 10:27:54,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3286 states to 3286 states and 4759 transitions. [2020-12-23 10:27:54,979 INFO L78 Accepts]: Start accepts. Automaton has 3286 states and 4759 transitions. Word has length 143 [2020-12-23 10:27:54,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:27:54,981 INFO L481 AbstractCegarLoop]: Abstraction has 3286 states and 4759 transitions. [2020-12-23 10:27:54,981 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 10:27:54,981 INFO L276 IsEmpty]: Start isEmpty. Operand 3286 states and 4759 transitions. [2020-12-23 10:27:54,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-12-23 10:27:54,988 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:27:54,988 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] [2020-12-23 10:27:54,988 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 10:27:54,988 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:27:54,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:27:54,989 INFO L82 PathProgramCache]: Analyzing trace with hash 407122579, now seen corresponding path program 1 times [2020-12-23 10:27:54,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:27:54,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25525051] [2020-12-23 10:27:54,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:27:55,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:27:55,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:27:55,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25525051] [2020-12-23 10:27:55,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:27:55,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 10:27:55,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330145526] [2020-12-23 10:27:55,206 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 10:27:55,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:27:55,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 10:27:55,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 10:27:55,207 INFO L87 Difference]: Start difference. First operand 3286 states and 4759 transitions. Second operand 4 states. [2020-12-23 10:27:55,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:27:55,744 INFO L93 Difference]: Finished difference Result 9553 states and 13784 transitions. [2020-12-23 10:27:55,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 10:27:55,745 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-12-23 10:27:55,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:27:55,778 INFO L225 Difference]: With dead ends: 9553 [2020-12-23 10:27:55,778 INFO L226 Difference]: Without dead ends: 6323 [2020-12-23 10:27:55,788 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 10:27:55,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6323 states. [2020-12-23 10:27:56,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6323 to 6321. [2020-12-23 10:27:56,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6321 states. [2020-12-23 10:27:56,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6321 states to 6321 states and 9025 transitions. [2020-12-23 10:27:56,310 INFO L78 Accepts]: Start accepts. Automaton has 6321 states and 9025 transitions. Word has length 143 [2020-12-23 10:27:56,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:27:56,310 INFO L481 AbstractCegarLoop]: Abstraction has 6321 states and 9025 transitions. [2020-12-23 10:27:56,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 10:27:56,311 INFO L276 IsEmpty]: Start isEmpty. Operand 6321 states and 9025 transitions. [2020-12-23 10:27:56,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-12-23 10:27:56,322 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:27:56,322 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] [2020-12-23 10:27:56,322 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 10:27:56,322 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:27:56,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:27:56,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1881733921, now seen corresponding path program 1 times [2020-12-23 10:27:56,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:27:56,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977603790] [2020-12-23 10:27:56,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:27:56,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:27:56,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:27:56,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977603790] [2020-12-23 10:27:56,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:27:56,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:27:56,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228077711] [2020-12-23 10:27:56,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:27:56,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:27:56,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:27:56,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:27:56,390 INFO L87 Difference]: Start difference. First operand 6321 states and 9025 transitions. Second operand 3 states. [2020-12-23 10:27:57,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:27:57,246 INFO L93 Difference]: Finished difference Result 18811 states and 26842 transitions. [2020-12-23 10:27:57,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:27:57,247 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2020-12-23 10:27:57,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:27:57,328 INFO L225 Difference]: With dead ends: 18811 [2020-12-23 10:27:57,328 INFO L226 Difference]: Without dead ends: 12581 [2020-12-23 10:27:57,341 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:27:57,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12581 states. [2020-12-23 10:27:57,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12581 to 6331. [2020-12-23 10:27:57,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6331 states. [2020-12-23 10:27:57,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6331 states to 6331 states and 9035 transitions. [2020-12-23 10:27:57,953 INFO L78 Accepts]: Start accepts. Automaton has 6331 states and 9035 transitions. Word has length 144 [2020-12-23 10:27:57,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:27:57,953 INFO L481 AbstractCegarLoop]: Abstraction has 6331 states and 9035 transitions. [2020-12-23 10:27:57,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:27:57,953 INFO L276 IsEmpty]: Start isEmpty. Operand 6331 states and 9035 transitions. [2020-12-23 10:27:57,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-12-23 10:27:57,965 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:27:57,965 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] [2020-12-23 10:27:57,965 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 10:27:57,966 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:27:57,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:27:57,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1026353394, now seen corresponding path program 1 times [2020-12-23 10:27:57,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:27:57,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584487000] [2020-12-23 10:27:57,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:27:58,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:27:58,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:27:58,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584487000] [2020-12-23 10:27:58,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:27:58,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 10:27:58,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823541939] [2020-12-23 10:27:58,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 10:27:58,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:27:58,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 10:27:58,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 10:27:58,147 INFO L87 Difference]: Start difference. First operand 6331 states and 9035 transitions. Second operand 4 states. [2020-12-23 10:27:58,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:27:58,991 INFO L93 Difference]: Finished difference Result 17179 states and 24404 transitions. [2020-12-23 10:27:58,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 10:27:58,991 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 145 [2020-12-23 10:27:58,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:27:59,017 INFO L225 Difference]: With dead ends: 17179 [2020-12-23 10:27:59,017 INFO L226 Difference]: Without dead ends: 10949 [2020-12-23 10:27:59,116 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 10:27:59,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10949 states. [2020-12-23 10:27:59,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10949 to 10947. [2020-12-23 10:27:59,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10947 states. [2020-12-23 10:28:00,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10947 states to 10947 states and 15333 transitions. [2020-12-23 10:28:00,001 INFO L78 Accepts]: Start accepts. Automaton has 10947 states and 15333 transitions. Word has length 145 [2020-12-23 10:28:00,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:28:00,006 INFO L481 AbstractCegarLoop]: Abstraction has 10947 states and 15333 transitions. [2020-12-23 10:28:00,007 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 10:28:00,007 INFO L276 IsEmpty]: Start isEmpty. Operand 10947 states and 15333 transitions. [2020-12-23 10:28:00,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-12-23 10:28:00,026 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:28:00,026 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] [2020-12-23 10:28:00,027 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 10:28:00,027 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:28:00,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:28:00,027 INFO L82 PathProgramCache]: Analyzing trace with hash 972165086, now seen corresponding path program 1 times [2020-12-23 10:28:00,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:28:00,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809000608] [2020-12-23 10:28:00,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:28:00,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:28:00,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:28:00,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809000608] [2020-12-23 10:28:00,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:28:00,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:28:00,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542186839] [2020-12-23 10:28:00,114 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:28:00,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:28:00,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:28:00,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:28:00,116 INFO L87 Difference]: Start difference. First operand 10947 states and 15333 transitions. Second operand 3 states. [2020-12-23 10:28:01,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:28:01,632 INFO L93 Difference]: Finished difference Result 31689 states and 44543 transitions. [2020-12-23 10:28:01,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:28:01,633 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2020-12-23 10:28:01,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:28:01,686 INFO L225 Difference]: With dead ends: 31689 [2020-12-23 10:28:01,686 INFO L226 Difference]: Without dead ends: 21617 [2020-12-23 10:28:01,710 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:28:01,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21617 states. [2020-12-23 10:28:02,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21617 to 10967. [2020-12-23 10:28:02,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10967 states. [2020-12-23 10:28:02,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10967 states to 10967 states and 15353 transitions. [2020-12-23 10:28:02,723 INFO L78 Accepts]: Start accepts. Automaton has 10967 states and 15353 transitions. Word has length 146 [2020-12-23 10:28:02,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:28:02,724 INFO L481 AbstractCegarLoop]: Abstraction has 10967 states and 15353 transitions. [2020-12-23 10:28:02,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:28:02,724 INFO L276 IsEmpty]: Start isEmpty. Operand 10967 states and 15353 transitions. [2020-12-23 10:28:02,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-12-23 10:28:02,741 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:28:02,741 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] [2020-12-23 10:28:02,741 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 10:28:02,741 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:28:02,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:28:02,742 INFO L82 PathProgramCache]: Analyzing trace with hash -1548655907, now seen corresponding path program 1 times [2020-12-23 10:28:02,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:28:02,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865735238] [2020-12-23 10:28:02,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:28:02,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:28:03,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:28:03,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865735238] [2020-12-23 10:28:03,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:28:03,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:28:03,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682287098] [2020-12-23 10:28:03,007 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 10:28:03,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:28:03,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 10:28:03,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:28:03,008 INFO L87 Difference]: Start difference. First operand 10967 states and 15353 transitions. Second operand 5 states. [2020-12-23 10:28:03,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:28:03,931 INFO L93 Difference]: Finished difference Result 22531 states and 31363 transitions. [2020-12-23 10:28:03,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 10:28:03,932 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 147 [2020-12-23 10:28:03,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:28:03,957 INFO L225 Difference]: With dead ends: 22531 [2020-12-23 10:28:03,957 INFO L226 Difference]: Without dead ends: 11789 [2020-12-23 10:28:03,976 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 10:28:03,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11789 states. [2020-12-23 10:28:05,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11789 to 11449. [2020-12-23 10:28:05,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11449 states. [2020-12-23 10:28:05,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11449 states to 11449 states and 15884 transitions. [2020-12-23 10:28:05,218 INFO L78 Accepts]: Start accepts. Automaton has 11449 states and 15884 transitions. Word has length 147 [2020-12-23 10:28:05,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:28:05,219 INFO L481 AbstractCegarLoop]: Abstraction has 11449 states and 15884 transitions. [2020-12-23 10:28:05,219 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 10:28:05,219 INFO L276 IsEmpty]: Start isEmpty. Operand 11449 states and 15884 transitions. [2020-12-23 10:28:05,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-12-23 10:28:05,240 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:28:05,240 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] [2020-12-23 10:28:05,240 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 10:28:05,240 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:28:05,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:28:05,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1691329839, now seen corresponding path program 1 times [2020-12-23 10:28:05,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:28:05,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940920354] [2020-12-23 10:28:05,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:28:05,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:28:05,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:28:05,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940920354] [2020-12-23 10:28:05,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:28:05,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 10:28:05,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097644709] [2020-12-23 10:28:05,446 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 10:28:05,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:28:05,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 10:28:05,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 10:28:05,449 INFO L87 Difference]: Start difference. First operand 11449 states and 15884 transitions. Second operand 4 states. [2020-12-23 10:28:06,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:28:06,127 INFO L93 Difference]: Finished difference Result 18605 states and 25810 transitions. [2020-12-23 10:28:06,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 10:28:06,128 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 147 [2020-12-23 10:28:06,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:28:06,144 INFO L225 Difference]: With dead ends: 18605 [2020-12-23 10:28:06,144 INFO L226 Difference]: Without dead ends: 7328 [2020-12-23 10:28:06,160 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 10:28:06,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7328 states. [2020-12-23 10:28:06,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7328 to 7328. [2020-12-23 10:28:06,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7328 states. [2020-12-23 10:28:06,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7328 states to 7328 states and 10123 transitions. [2020-12-23 10:28:06,675 INFO L78 Accepts]: Start accepts. Automaton has 7328 states and 10123 transitions. Word has length 147 [2020-12-23 10:28:06,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:28:06,676 INFO L481 AbstractCegarLoop]: Abstraction has 7328 states and 10123 transitions. [2020-12-23 10:28:06,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 10:28:06,676 INFO L276 IsEmpty]: Start isEmpty. Operand 7328 states and 10123 transitions. [2020-12-23 10:28:06,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-12-23 10:28:06,686 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:28:06,687 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 10:28:06,687 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-23 10:28:06,687 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:28:06,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:28:06,688 INFO L82 PathProgramCache]: Analyzing trace with hash 477794436, now seen corresponding path program 1 times [2020-12-23 10:28:06,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:28:06,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869471391] [2020-12-23 10:28:06,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:28:06,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:28:06,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:28:06,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869471391] [2020-12-23 10:28:06,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:28:06,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:28:06,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566697428] [2020-12-23 10:28:06,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:28:06,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:28:06,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:28:06,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:28:06,811 INFO L87 Difference]: Start difference. First operand 7328 states and 10123 transitions. Second operand 3 states. [2020-12-23 10:28:07,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:28:07,728 INFO L93 Difference]: Finished difference Result 19761 states and 27537 transitions. [2020-12-23 10:28:07,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:28:07,729 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 152 [2020-12-23 10:28:07,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:28:07,758 INFO L225 Difference]: With dead ends: 19761 [2020-12-23 10:28:07,758 INFO L226 Difference]: Without dead ends: 13779 [2020-12-23 10:28:07,768 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:28:07,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13779 states. [2020-12-23 10:28:08,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13779 to 13777. [2020-12-23 10:28:08,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13777 states. [2020-12-23 10:28:08,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13777 states to 13777 states and 18835 transitions. [2020-12-23 10:28:08,587 INFO L78 Accepts]: Start accepts. Automaton has 13777 states and 18835 transitions. Word has length 152 [2020-12-23 10:28:08,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:28:08,587 INFO L481 AbstractCegarLoop]: Abstraction has 13777 states and 18835 transitions. [2020-12-23 10:28:08,587 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:28:08,588 INFO L276 IsEmpty]: Start isEmpty. Operand 13777 states and 18835 transitions. [2020-12-23 10:28:08,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-12-23 10:28:08,603 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:28:08,603 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 10:28:08,604 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-23 10:28:08,604 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:28:08,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:28:08,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1506973983, now seen corresponding path program 1 times [2020-12-23 10:28:08,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:28:08,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192680923] [2020-12-23 10:28:08,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:28:08,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:28:08,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:28:08,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192680923] [2020-12-23 10:28:08,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:28:08,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 10:28:08,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057204607] [2020-12-23 10:28:08,717 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 10:28:08,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:28:08,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 10:28:08,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:28:08,718 INFO L87 Difference]: Start difference. First operand 13777 states and 18835 transitions. Second operand 5 states. [2020-12-23 10:28:09,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:28:09,834 INFO L93 Difference]: Finished difference Result 26226 states and 36201 transitions. [2020-12-23 10:28:09,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:28:09,834 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 152 [2020-12-23 10:28:09,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:28:09,864 INFO L225 Difference]: With dead ends: 26226 [2020-12-23 10:28:09,865 INFO L226 Difference]: Without dead ends: 13777 [2020-12-23 10:28:09,878 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 10:28:09,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13777 states. [2020-12-23 10:28:10,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13777 to 13777. [2020-12-23 10:28:10,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13777 states. [2020-12-23 10:28:10,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13777 states to 13777 states and 18689 transitions. [2020-12-23 10:28:10,836 INFO L78 Accepts]: Start accepts. Automaton has 13777 states and 18689 transitions. Word has length 152 [2020-12-23 10:28:10,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:28:10,836 INFO L481 AbstractCegarLoop]: Abstraction has 13777 states and 18689 transitions. [2020-12-23 10:28:10,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 10:28:10,837 INFO L276 IsEmpty]: Start isEmpty. Operand 13777 states and 18689 transitions. [2020-12-23 10:28:10,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-12-23 10:28:10,854 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:28:10,854 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 10:28:10,855 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-23 10:28:10,855 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:28:10,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:28:10,855 INFO L82 PathProgramCache]: Analyzing trace with hash 211573798, now seen corresponding path program 1 times [2020-12-23 10:28:10,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:28:10,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538094820] [2020-12-23 10:28:10,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:28:10,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:28:11,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:28:11,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538094820] [2020-12-23 10:28:11,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:28:11,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 10:28:11,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583602821] [2020-12-23 10:28:11,047 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 10:28:11,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:28:11,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 10:28:11,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 10:28:11,048 INFO L87 Difference]: Start difference. First operand 13777 states and 18689 transitions. Second operand 4 states. [2020-12-23 10:28:12,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:28:12,827 INFO L93 Difference]: Finished difference Result 30332 states and 42929 transitions. [2020-12-23 10:28:12,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 10:28:12,827 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 152 [2020-12-23 10:28:12,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:28:12,863 INFO L225 Difference]: With dead ends: 30332 [2020-12-23 10:28:12,864 INFO L226 Difference]: Without dead ends: 24358 [2020-12-23 10:28:12,874 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 10:28:12,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24358 states. [2020-12-23 10:28:14,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24358 to 24356. [2020-12-23 10:28:14,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24356 states. [2020-12-23 10:28:14,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24356 states to 24356 states and 33478 transitions. [2020-12-23 10:28:14,342 INFO L78 Accepts]: Start accepts. Automaton has 24356 states and 33478 transitions. Word has length 152 [2020-12-23 10:28:14,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:28:14,343 INFO L481 AbstractCegarLoop]: Abstraction has 24356 states and 33478 transitions. [2020-12-23 10:28:14,343 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 10:28:14,343 INFO L276 IsEmpty]: Start isEmpty. Operand 24356 states and 33478 transitions. [2020-12-23 10:28:14,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-12-23 10:28:14,366 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:28:14,366 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 10:28:14,366 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-23 10:28:14,367 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:28:14,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:28:14,367 INFO L82 PathProgramCache]: Analyzing trace with hash 256672605, now seen corresponding path program 1 times [2020-12-23 10:28:14,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:28:14,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629655903] [2020-12-23 10:28:14,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:28:14,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:28:14,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:28:14,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629655903] [2020-12-23 10:28:14,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:28:14,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 10:28:14,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946093793] [2020-12-23 10:28:14,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 10:28:14,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:28:14,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 10:28:14,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 10:28:14,538 INFO L87 Difference]: Start difference. First operand 24356 states and 33478 transitions. Second operand 4 states. [2020-12-23 10:28:15,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:28:15,735 INFO L93 Difference]: Finished difference Result 38417 states and 52944 transitions. [2020-12-23 10:28:15,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 10:28:15,735 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 152 [2020-12-23 10:28:15,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:28:15,765 INFO L225 Difference]: With dead ends: 38417 [2020-12-23 10:28:15,766 INFO L226 Difference]: Without dead ends: 19705 [2020-12-23 10:28:15,784 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 10:28:15,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19705 states. [2020-12-23 10:28:17,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19705 to 19705. [2020-12-23 10:28:17,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19705 states. [2020-12-23 10:28:17,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19705 states to 19705 states and 27029 transitions. [2020-12-23 10:28:17,128 INFO L78 Accepts]: Start accepts. Automaton has 19705 states and 27029 transitions. Word has length 152 [2020-12-23 10:28:17,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:28:17,128 INFO L481 AbstractCegarLoop]: Abstraction has 19705 states and 27029 transitions. [2020-12-23 10:28:17,128 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 10:28:17,128 INFO L276 IsEmpty]: Start isEmpty. Operand 19705 states and 27029 transitions. [2020-12-23 10:28:17,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-12-23 10:28:17,139 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:28:17,139 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 10:28:17,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-23 10:28:17,140 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:28:17,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:28:17,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1780029436, now seen corresponding path program 1 times [2020-12-23 10:28:17,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:28:17,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232903960] [2020-12-23 10:28:17,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:28:17,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:28:17,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:28:17,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232903960] [2020-12-23 10:28:17,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:28:17,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 10:28:17,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98187502] [2020-12-23 10:28:17,335 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 10:28:17,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:28:17,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 10:28:17,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-12-23 10:28:17,336 INFO L87 Difference]: Start difference. First operand 19705 states and 27029 transitions. Second operand 8 states. [2020-12-23 10:28:21,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:28:21,782 INFO L93 Difference]: Finished difference Result 62587 states and 90534 transitions. [2020-12-23 10:28:21,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-23 10:28:21,783 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 155 [2020-12-23 10:28:21,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:28:21,849 INFO L225 Difference]: With dead ends: 62587 [2020-12-23 10:28:21,849 INFO L226 Difference]: Without dead ends: 45885 [2020-12-23 10:28:21,869 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=96, Invalid=176, Unknown=0, NotChecked=0, Total=272 [2020-12-23 10:28:21,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45885 states. [2020-12-23 10:28:24,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45885 to 28647. [2020-12-23 10:28:24,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28647 states. [2020-12-23 10:28:24,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28647 states to 28647 states and 40299 transitions. [2020-12-23 10:28:24,266 INFO L78 Accepts]: Start accepts. Automaton has 28647 states and 40299 transitions. Word has length 155 [2020-12-23 10:28:24,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:28:24,266 INFO L481 AbstractCegarLoop]: Abstraction has 28647 states and 40299 transitions. [2020-12-23 10:28:24,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 10:28:24,266 INFO L276 IsEmpty]: Start isEmpty. Operand 28647 states and 40299 transitions. [2020-12-23 10:28:24,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-12-23 10:28:24,276 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:28:24,276 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 10:28:24,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-23 10:28:24,277 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:28:24,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:28:24,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1190617374, now seen corresponding path program 1 times [2020-12-23 10:28:24,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:28:24,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734589314] [2020-12-23 10:28:24,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:28:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:28:24,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:28:24,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734589314] [2020-12-23 10:28:24,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:28:24,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 10:28:24,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532706547] [2020-12-23 10:28:24,448 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 10:28:24,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:28:24,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 10:28:24,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 10:28:24,449 INFO L87 Difference]: Start difference. First operand 28647 states and 40299 transitions. Second operand 4 states. [2020-12-23 10:28:27,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:28:27,121 INFO L93 Difference]: Finished difference Result 53288 states and 74933 transitions. [2020-12-23 10:28:27,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 10:28:27,122 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 155 [2020-12-23 10:28:27,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:28:27,157 INFO L225 Difference]: With dead ends: 53288 [2020-12-23 10:28:27,157 INFO L226 Difference]: Without dead ends: 24699 [2020-12-23 10:28:27,181 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 10:28:27,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24699 states. [2020-12-23 10:28:29,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24699 to 24699. [2020-12-23 10:28:29,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24699 states. [2020-12-23 10:28:29,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24699 states to 24699 states and 34707 transitions. [2020-12-23 10:28:29,171 INFO L78 Accepts]: Start accepts. Automaton has 24699 states and 34707 transitions. Word has length 155 [2020-12-23 10:28:29,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:28:29,171 INFO L481 AbstractCegarLoop]: Abstraction has 24699 states and 34707 transitions. [2020-12-23 10:28:29,171 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 10:28:29,172 INFO L276 IsEmpty]: Start isEmpty. Operand 24699 states and 34707 transitions. [2020-12-23 10:28:29,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-12-23 10:28:29,179 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:28:29,179 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] [2020-12-23 10:28:29,179 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-23 10:28:29,180 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:28:29,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:28:29,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1407593907, now seen corresponding path program 1 times [2020-12-23 10:28:29,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:28:29,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315557246] [2020-12-23 10:28:29,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:28:29,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:28:29,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:28:29,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315557246] [2020-12-23 10:28:29,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:28:29,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 10:28:29,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108765566] [2020-12-23 10:28:29,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 10:28:29,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:28:29,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 10:28:29,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 10:28:29,341 INFO L87 Difference]: Start difference. First operand 24699 states and 34707 transitions. Second operand 4 states. [2020-12-23 10:28:31,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:28:31,382 INFO L93 Difference]: Finished difference Result 46270 states and 64938 transitions. [2020-12-23 10:28:31,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 10:28:31,382 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 161 [2020-12-23 10:28:31,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:28:31,403 INFO L225 Difference]: With dead ends: 46270 [2020-12-23 10:28:31,404 INFO L226 Difference]: Without dead ends: 21835 [2020-12-23 10:28:31,417 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 10:28:31,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21835 states. [2020-12-23 10:28:33,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21835 to 21763. [2020-12-23 10:28:33,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21763 states. [2020-12-23 10:28:33,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21763 states to 21763 states and 30440 transitions. [2020-12-23 10:28:33,315 INFO L78 Accepts]: Start accepts. Automaton has 21763 states and 30440 transitions. Word has length 161 [2020-12-23 10:28:33,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:28:33,315 INFO L481 AbstractCegarLoop]: Abstraction has 21763 states and 30440 transitions. [2020-12-23 10:28:33,315 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 10:28:33,315 INFO L276 IsEmpty]: Start isEmpty. Operand 21763 states and 30440 transitions. [2020-12-23 10:28:33,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-12-23 10:28:33,326 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:28:33,326 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] [2020-12-23 10:28:33,326 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-23 10:28:33,326 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:28:33,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:28:33,327 INFO L82 PathProgramCache]: Analyzing trace with hash 1801353677, now seen corresponding path program 1 times [2020-12-23 10:28:33,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:28:33,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950683352] [2020-12-23 10:28:33,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:28:33,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:28:33,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:28:33,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950683352] [2020-12-23 10:28:33,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:28:33,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 10:28:33,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249253404] [2020-12-23 10:28:33,510 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 10:28:33,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:28:33,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 10:28:33,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 10:28:33,511 INFO L87 Difference]: Start difference. First operand 21763 states and 30440 transitions. Second operand 4 states. [2020-12-23 10:28:35,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:28:35,196 INFO L93 Difference]: Finished difference Result 30778 states and 43056 transitions. [2020-12-23 10:28:35,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 10:28:35,196 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2020-12-23 10:28:35,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:28:35,217 INFO L225 Difference]: With dead ends: 30778 [2020-12-23 10:28:35,217 INFO L226 Difference]: Without dead ends: 18884 [2020-12-23 10:28:35,226 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 10:28:35,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18884 states. [2020-12-23 10:28:37,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18884 to 18884. [2020-12-23 10:28:37,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18884 states. [2020-12-23 10:28:37,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18884 states to 18884 states and 26341 transitions. [2020-12-23 10:28:37,188 INFO L78 Accepts]: Start accepts. Automaton has 18884 states and 26341 transitions. Word has length 163 [2020-12-23 10:28:37,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:28:37,188 INFO L481 AbstractCegarLoop]: Abstraction has 18884 states and 26341 transitions. [2020-12-23 10:28:37,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 10:28:37,188 INFO L276 IsEmpty]: Start isEmpty. Operand 18884 states and 26341 transitions. [2020-12-23 10:28:37,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-12-23 10:28:37,198 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:28:37,198 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 10:28:37,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-23 10:28:37,198 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:28:37,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:28:37,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1487758919, now seen corresponding path program 1 times [2020-12-23 10:28:37,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:28:37,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483243171] [2020-12-23 10:28:37,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:28:37,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:28:38,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:28:38,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483243171] [2020-12-23 10:28:38,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:28:38,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-12-23 10:28:38,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941148555] [2020-12-23 10:28:38,371 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-12-23 10:28:38,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:28:38,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-12-23 10:28:38,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=412, Unknown=0, NotChecked=0, Total=462 [2020-12-23 10:28:38,372 INFO L87 Difference]: Start difference. First operand 18884 states and 26341 transitions. Second operand 22 states. [2020-12-23 10:28:39,066 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2020-12-23 10:28:39,214 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2020-12-23 10:28:39,630 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2020-12-23 10:28:39,894 WARN L197 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-12-23 10:28:40,106 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2020-12-23 10:28:40,428 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2020-12-23 10:28:40,637 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2020-12-23 10:28:40,990 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2020-12-23 10:28:41,190 WARN L197 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2020-12-23 10:28:41,430 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2020-12-23 10:28:41,933 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2020-12-23 10:28:42,306 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 55 [2020-12-23 10:28:42,653 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2020-12-23 10:28:43,634 WARN L197 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 62 [2020-12-23 10:28:43,932 WARN L197 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 52 [2020-12-23 10:28:44,690 WARN L197 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 62 [2020-12-23 10:28:45,282 WARN L197 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 64 [2020-12-23 10:28:45,887 WARN L197 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2020-12-23 10:28:46,102 WARN L197 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2020-12-23 10:28:46,336 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 64 [2020-12-23 10:28:46,623 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2020-12-23 10:28:46,864 WARN L197 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2020-12-23 10:28:47,217 WARN L197 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2020-12-23 10:28:47,530 WARN L197 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 76 [2020-12-23 10:28:48,065 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 59 [2020-12-23 10:28:48,308 WARN L197 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2020-12-23 10:28:48,568 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2020-12-23 10:28:48,739 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2020-12-23 10:28:48,915 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2020-12-23 10:28:49,108 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2020-12-23 10:28:49,707 WARN L197 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2020-12-23 10:28:51,395 WARN L197 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 59 [2020-12-23 10:28:53,062 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2020-12-23 10:28:53,350 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-12-23 10:28:53,569 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 59 [2020-12-23 10:28:53,889 WARN L197 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 62 [2020-12-23 10:28:55,249 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2020-12-23 10:28:55,706 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2020-12-23 10:28:57,469 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 55 [2020-12-23 10:28:57,666 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2020-12-23 10:28:58,381 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2020-12-23 10:29:00,198 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 52 [2020-12-23 10:29:00,499 WARN L197 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 55 [2020-12-23 10:29:00,984 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2020-12-23 10:29:02,034 WARN L197 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 53 [2020-12-23 10:29:02,515 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2020-12-23 10:29:02,778 WARN L197 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 50 [2020-12-23 10:29:04,546 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 55 [2020-12-23 10:29:06,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:29:06,067 INFO L93 Difference]: Finished difference Result 90477 states and 130629 transitions. [2020-12-23 10:29:06,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2020-12-23 10:29:06,068 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 168 [2020-12-23 10:29:06,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:29:06,173 INFO L225 Difference]: With dead ends: 90477 [2020-12-23 10:29:06,173 INFO L226 Difference]: Without dead ends: 87191 [2020-12-23 10:29:06,194 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2281 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=1313, Invalid=6697, Unknown=0, NotChecked=0, Total=8010 [2020-12-23 10:29:06,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87191 states. [2020-12-23 10:29:09,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87191 to 19904. [2020-12-23 10:29:09,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19904 states. [2020-12-23 10:29:09,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19904 states to 19904 states and 27542 transitions. [2020-12-23 10:29:09,276 INFO L78 Accepts]: Start accepts. Automaton has 19904 states and 27542 transitions. Word has length 168 [2020-12-23 10:29:09,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:29:09,277 INFO L481 AbstractCegarLoop]: Abstraction has 19904 states and 27542 transitions. [2020-12-23 10:29:09,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-12-23 10:29:09,277 INFO L276 IsEmpty]: Start isEmpty. Operand 19904 states and 27542 transitions. [2020-12-23 10:29:09,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-12-23 10:29:09,288 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:29:09,288 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 10:29:09,289 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-23 10:29:09,289 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:29:09,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:29:09,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1422081639, now seen corresponding path program 1 times [2020-12-23 10:29:09,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:29:09,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479370064] [2020-12-23 10:29:09,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:29:09,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:29:09,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:29:09,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479370064] [2020-12-23 10:29:09,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:29:09,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:29:09,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447239921] [2020-12-23 10:29:09,464 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 10:29:09,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:29:09,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 10:29:09,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:29:09,465 INFO L87 Difference]: Start difference. First operand 19904 states and 27542 transitions. Second operand 5 states. [2020-12-23 10:29:13,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:29:13,835 INFO L93 Difference]: Finished difference Result 36250 states and 52442 transitions. [2020-12-23 10:29:13,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:29:13,835 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2020-12-23 10:29:13,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:29:13,875 INFO L225 Difference]: With dead ends: 36250 [2020-12-23 10:29:13,875 INFO L226 Difference]: Without dead ends: 30868 [2020-12-23 10:29:13,884 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-23 10:29:13,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30868 states. [2020-12-23 10:29:17,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30868 to 25500. [2020-12-23 10:29:17,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25500 states. [2020-12-23 10:29:17,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25500 states to 25500 states and 36005 transitions. [2020-12-23 10:29:17,182 INFO L78 Accepts]: Start accepts. Automaton has 25500 states and 36005 transitions. Word has length 168 [2020-12-23 10:29:17,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:29:17,182 INFO L481 AbstractCegarLoop]: Abstraction has 25500 states and 36005 transitions. [2020-12-23 10:29:17,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 10:29:17,183 INFO L276 IsEmpty]: Start isEmpty. Operand 25500 states and 36005 transitions. [2020-12-23 10:29:17,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-12-23 10:29:17,191 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:29:17,191 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 10:29:17,191 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-23 10:29:17,191 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:29:17,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:29:17,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1392072489, now seen corresponding path program 1 times [2020-12-23 10:29:17,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:29:17,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516472686] [2020-12-23 10:29:17,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:29:17,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:29:17,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:29:17,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516472686] [2020-12-23 10:29:17,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:29:17,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:29:17,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259413468] [2020-12-23 10:29:17,417 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:29:17,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:29:17,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:29:17,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:29:17,418 INFO L87 Difference]: Start difference. First operand 25500 states and 36005 transitions. Second operand 3 states. [2020-12-23 10:29:23,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:29:23,472 INFO L93 Difference]: Finished difference Result 61997 states and 89736 transitions. [2020-12-23 10:29:23,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:29:23,474 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 168 [2020-12-23 10:29:23,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:29:23,523 INFO L225 Difference]: With dead ends: 61997 [2020-12-23 10:29:23,523 INFO L226 Difference]: Without dead ends: 44973 [2020-12-23 10:29:23,540 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:29:23,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44973 states. [2020-12-23 10:29:29,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44973 to 44971. [2020-12-23 10:29:29,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44971 states. [2020-12-23 10:29:29,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44971 states to 44971 states and 63608 transitions. [2020-12-23 10:29:29,811 INFO L78 Accepts]: Start accepts. Automaton has 44971 states and 63608 transitions. Word has length 168 [2020-12-23 10:29:29,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:29:29,811 INFO L481 AbstractCegarLoop]: Abstraction has 44971 states and 63608 transitions. [2020-12-23 10:29:29,811 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:29:29,812 INFO L276 IsEmpty]: Start isEmpty. Operand 44971 states and 63608 transitions. [2020-12-23 10:29:29,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-12-23 10:29:29,824 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:29:29,824 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 10:29:29,824 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-23 10:29:29,824 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:29:29,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:29:29,824 INFO L82 PathProgramCache]: Analyzing trace with hash 631397051, now seen corresponding path program 1 times [2020-12-23 10:29:29,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:29:29,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660289823] [2020-12-23 10:29:29,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:29:29,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:29:30,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:29:30,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660289823] [2020-12-23 10:29:30,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:29:30,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-23 10:29:30,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897443163] [2020-12-23 10:29:30,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 10:29:30,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:29:30,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 10:29:30,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-12-23 10:29:30,042 INFO L87 Difference]: Start difference. First operand 44971 states and 63608 transitions. Second operand 8 states. [2020-12-23 10:29:36,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:29:36,428 INFO L93 Difference]: Finished difference Result 68431 states and 99018 transitions. [2020-12-23 10:29:36,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 10:29:36,429 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 168 [2020-12-23 10:29:36,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:29:36,473 INFO L225 Difference]: With dead ends: 68431 [2020-12-23 10:29:36,474 INFO L226 Difference]: Without dead ends: 44973 [2020-12-23 10:29:36,489 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-12-23 10:29:36,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44973 states. [2020-12-23 10:29:42,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44973 to 44971. [2020-12-23 10:29:42,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44971 states. [2020-12-23 10:29:42,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44971 states to 44971 states and 63319 transitions. [2020-12-23 10:29:42,844 INFO L78 Accepts]: Start accepts. Automaton has 44971 states and 63319 transitions. Word has length 168 [2020-12-23 10:29:42,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:29:42,844 INFO L481 AbstractCegarLoop]: Abstraction has 44971 states and 63319 transitions. [2020-12-23 10:29:42,844 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 10:29:42,844 INFO L276 IsEmpty]: Start isEmpty. Operand 44971 states and 63319 transitions. [2020-12-23 10:29:42,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-12-23 10:29:42,859 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:29:42,859 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 10:29:42,859 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-23 10:29:42,859 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:29:42,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:29:42,860 INFO L82 PathProgramCache]: Analyzing trace with hash 751294860, now seen corresponding path program 1 times [2020-12-23 10:29:42,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:29:42,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164603510] [2020-12-23 10:29:42,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:29:42,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:29:43,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:29:43,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164603510] [2020-12-23 10:29:43,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:29:43,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-23 10:29:43,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992211422] [2020-12-23 10:29:43,131 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-23 10:29:43,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:29:43,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-23 10:29:43,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-12-23 10:29:43,132 INFO L87 Difference]: Start difference. First operand 44971 states and 63319 transitions. Second operand 11 states. [2020-12-23 10:29:49,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:29:49,473 INFO L93 Difference]: Finished difference Result 88918 states and 125491 transitions. [2020-12-23 10:29:49,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:29:49,473 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 168 [2020-12-23 10:29:49,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:29:49,529 INFO L225 Difference]: With dead ends: 88918 [2020-12-23 10:29:49,529 INFO L226 Difference]: Without dead ends: 44971 [2020-12-23 10:29:49,558 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-12-23 10:29:49,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44971 states. [2020-12-23 10:29:56,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44971 to 44971. [2020-12-23 10:29:56,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44971 states. [2020-12-23 10:29:56,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44971 states to 44971 states and 62167 transitions. [2020-12-23 10:29:56,243 INFO L78 Accepts]: Start accepts. Automaton has 44971 states and 62167 transitions. Word has length 168 [2020-12-23 10:29:56,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:29:56,243 INFO L481 AbstractCegarLoop]: Abstraction has 44971 states and 62167 transitions. [2020-12-23 10:29:56,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-23 10:29:56,244 INFO L276 IsEmpty]: Start isEmpty. Operand 44971 states and 62167 transitions. [2020-12-23 10:29:56,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-12-23 10:29:56,259 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:29:56,259 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 10:29:56,259 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-23 10:29:56,259 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:29:56,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:29:56,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1648521291, now seen corresponding path program 1 times [2020-12-23 10:29:56,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:29:56,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752638860] [2020-12-23 10:29:56,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:29:56,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:29:56,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:29:56,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752638860] [2020-12-23 10:29:56,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:29:56,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 10:29:56,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605186111] [2020-12-23 10:29:56,393 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 10:29:56,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:29:56,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 10:29:56,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 10:29:56,394 INFO L87 Difference]: Start difference. First operand 44971 states and 62167 transitions. Second operand 4 states. [2020-12-23 10:30:02,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:30:02,930 INFO L93 Difference]: Finished difference Result 72721 states and 103270 transitions. [2020-12-23 10:30:02,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 10:30:02,931 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 168 [2020-12-23 10:30:02,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:30:03,002 INFO L225 Difference]: With dead ends: 72721 [2020-12-23 10:30:03,002 INFO L226 Difference]: Without dead ends: 44973 [2020-12-23 10:30:03,032 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 10:30:03,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44973 states. [2020-12-23 10:30:09,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44973 to 42290. [2020-12-23 10:30:09,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42290 states. [2020-12-23 10:30:09,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42290 states to 42290 states and 57966 transitions. [2020-12-23 10:30:09,568 INFO L78 Accepts]: Start accepts. Automaton has 42290 states and 57966 transitions. Word has length 168 [2020-12-23 10:30:09,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:30:09,569 INFO L481 AbstractCegarLoop]: Abstraction has 42290 states and 57966 transitions. [2020-12-23 10:30:09,569 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 10:30:09,569 INFO L276 IsEmpty]: Start isEmpty. Operand 42290 states and 57966 transitions. [2020-12-23 10:30:09,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-12-23 10:30:09,580 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:30:09,581 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 10:30:09,581 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-23 10:30:09,581 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:30:09,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:30:09,581 INFO L82 PathProgramCache]: Analyzing trace with hash 167708123, now seen corresponding path program 1 times [2020-12-23 10:30:09,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:30:09,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636243288] [2020-12-23 10:30:09,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:30:09,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:30:09,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:30:09,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636243288] [2020-12-23 10:30:09,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:30:09,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:30:09,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435995225] [2020-12-23 10:30:09,737 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 10:30:09,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:30:09,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 10:30:09,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:30:09,738 INFO L87 Difference]: Start difference. First operand 42290 states and 57966 transitions. Second operand 5 states. [2020-12-23 10:30:20,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:30:20,768 INFO L93 Difference]: Finished difference Result 77169 states and 109475 transitions. [2020-12-23 10:30:20,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:30:20,768 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2020-12-23 10:30:20,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:30:20,855 INFO L225 Difference]: With dead ends: 77169 [2020-12-23 10:30:20,855 INFO L226 Difference]: Without dead ends: 71787 [2020-12-23 10:30:20,869 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:30:20,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71787 states. [2020-12-23 10:30:28,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71787 to 44971. [2020-12-23 10:30:28,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44971 states. [2020-12-23 10:30:28,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44971 states to 44971 states and 61860 transitions. [2020-12-23 10:30:28,147 INFO L78 Accepts]: Start accepts. Automaton has 44971 states and 61860 transitions. Word has length 168 [2020-12-23 10:30:28,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:30:28,147 INFO L481 AbstractCegarLoop]: Abstraction has 44971 states and 61860 transitions. [2020-12-23 10:30:28,147 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 10:30:28,147 INFO L276 IsEmpty]: Start isEmpty. Operand 44971 states and 61860 transitions. [2020-12-23 10:30:28,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-12-23 10:30:28,163 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:30:28,164 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 10:30:28,164 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-12-23 10:30:28,164 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:30:28,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:30:28,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1552834861, now seen corresponding path program 1 times [2020-12-23 10:30:28,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:30:28,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446470492] [2020-12-23 10:30:28,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:30:28,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:30:28,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:30:28,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446470492] [2020-12-23 10:30:28,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:30:28,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:30:28,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336968163] [2020-12-23 10:30:28,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:30:28,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:30:28,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:30:28,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:30:28,278 INFO L87 Difference]: Start difference. First operand 44971 states and 61860 transitions. Second operand 3 states. [2020-12-23 10:30:39,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:30:39,034 INFO L93 Difference]: Finished difference Result 86290 states and 121453 transitions. [2020-12-23 10:30:39,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:30:39,034 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 168 [2020-12-23 10:30:39,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:30:39,105 INFO L225 Difference]: With dead ends: 86290 [2020-12-23 10:30:39,105 INFO L226 Difference]: Without dead ends: 64822 [2020-12-23 10:30:39,124 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:30:39,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64822 states. [2020-12-23 10:30:49,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64822 to 60852. [2020-12-23 10:30:49,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60852 states. [2020-12-23 10:30:49,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60852 states to 60852 states and 83840 transitions. [2020-12-23 10:30:49,479 INFO L78 Accepts]: Start accepts. Automaton has 60852 states and 83840 transitions. Word has length 168 [2020-12-23 10:30:49,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:30:49,480 INFO L481 AbstractCegarLoop]: Abstraction has 60852 states and 83840 transitions. [2020-12-23 10:30:49,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:30:49,480 INFO L276 IsEmpty]: Start isEmpty. Operand 60852 states and 83840 transitions. [2020-12-23 10:30:49,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-12-23 10:30:49,491 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:30:49,491 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 10:30:49,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-12-23 10:30:49,492 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:30:49,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:30:49,492 INFO L82 PathProgramCache]: Analyzing trace with hash 2120859759, now seen corresponding path program 1 times [2020-12-23 10:30:49,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:30:49,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102779446] [2020-12-23 10:30:49,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:30:49,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:30:50,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:30:50,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102779446] [2020-12-23 10:30:50,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:30:50,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-12-23 10:30:50,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108000216] [2020-12-23 10:30:50,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-12-23 10:30:50,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:30:50,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-12-23 10:30:50,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2020-12-23 10:30:50,518 INFO L87 Difference]: Start difference. First operand 60852 states and 83840 transitions. Second operand 22 states. [2020-12-23 10:30:51,152 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 41 [2020-12-23 10:30:51,409 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2020-12-23 10:30:51,641 WARN L197 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2020-12-23 10:30:51,933 WARN L197 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2020-12-23 10:30:52,202 WARN L197 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2020-12-23 10:30:52,701 WARN L197 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2020-12-23 10:30:53,028 WARN L197 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2020-12-23 10:30:53,290 WARN L197 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-12-23 10:30:53,572 WARN L197 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-12-23 10:30:53,816 WARN L197 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2020-12-23 10:30:54,063 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2020-12-23 10:30:54,508 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2020-12-23 10:30:54,843 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2020-12-23 10:30:55,211 WARN L197 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2020-12-23 10:31:18,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:31:18,594 INFO L93 Difference]: Finished difference Result 143341 states and 201163 transitions. [2020-12-23 10:31:18,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-12-23 10:31:18,595 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 168 [2020-12-23 10:31:18,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:31:18,747 INFO L225 Difference]: With dead ends: 143341 [2020-12-23 10:31:18,747 INFO L226 Difference]: Without dead ends: 106539 [2020-12-23 10:31:18,782 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=369, Invalid=1353, Unknown=0, NotChecked=0, Total=1722 [2020-12-23 10:31:18,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106539 states. [2020-12-23 10:31:30,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106539 to 61187. [2020-12-23 10:31:30,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61187 states. [2020-12-23 10:31:30,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61187 states to 61187 states and 84113 transitions. [2020-12-23 10:31:30,950 INFO L78 Accepts]: Start accepts. Automaton has 61187 states and 84113 transitions. Word has length 168 [2020-12-23 10:31:30,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:31:30,950 INFO L481 AbstractCegarLoop]: Abstraction has 61187 states and 84113 transitions. [2020-12-23 10:31:30,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-12-23 10:31:30,950 INFO L276 IsEmpty]: Start isEmpty. Operand 61187 states and 84113 transitions. [2020-12-23 10:31:30,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-12-23 10:31:30,962 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:31:30,962 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 10:31:30,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-12-23 10:31:30,962 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:31:30,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:31:30,963 INFO L82 PathProgramCache]: Analyzing trace with hash 800808963, now seen corresponding path program 1 times [2020-12-23 10:31:30,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:31:30,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959172438] [2020-12-23 10:31:30,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:31:31,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:31:32,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:31:32,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959172438] [2020-12-23 10:31:32,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:31:32,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-12-23 10:31:32,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556164057] [2020-12-23 10:31:32,360 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-12-23 10:31:32,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:31:32,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-12-23 10:31:32,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=414, Unknown=0, NotChecked=0, Total=462 [2020-12-23 10:31:32,362 INFO L87 Difference]: Start difference. First operand 61187 states and 84113 transitions. Second operand 22 states. [2020-12-23 10:31:33,119 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2020-12-23 10:31:33,361 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2020-12-23 10:31:33,584 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 52 [2020-12-23 10:31:34,047 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2020-12-23 10:31:34,261 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-12-23 10:31:34,471 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-12-23 10:31:34,616 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2020-12-23 10:31:35,221 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2020-12-23 10:31:35,459 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 33 [2020-12-23 10:31:37,265 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2020-12-23 10:31:37,503 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 45 [2020-12-23 10:31:37,755 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 45 [2020-12-23 10:31:39,293 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 45 [2020-12-23 10:31:43,873 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 35