/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 11:10:33,062 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 11:10:33,065 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 11:10:33,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 11:10:33,109 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 11:10:33,111 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 11:10:33,112 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 11:10:33,117 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 11:10:33,120 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 11:10:33,121 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 11:10:33,122 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 11:10:33,124 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 11:10:33,125 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 11:10:33,126 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 11:10:33,128 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 11:10:33,129 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 11:10:33,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 11:10:33,148 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 11:10:33,151 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 11:10:33,153 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 11:10:33,155 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 11:10:33,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 11:10:33,159 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 11:10:33,160 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 11:10:33,163 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 11:10:33,164 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 11:10:33,164 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 11:10:33,166 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 11:10:33,167 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 11:10:33,168 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 11:10:33,168 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 11:10:33,169 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 11:10:33,170 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 11:10:33,171 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 11:10:33,172 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 11:10:33,173 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 11:10:33,174 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 11:10:33,174 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 11:10:33,174 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 11:10:33,176 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 11:10:33,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 11:10:33,178 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 11:10:33,209 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 11:10:33,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 11:10:33,211 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 11:10:33,211 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 11:10:33,211 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 11:10:33,212 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 11:10:33,215 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 11:10:33,216 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 11:10:33,216 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 11:10:33,216 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 11:10:33,217 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 11:10:33,217 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 11:10:33,217 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 11:10:33,217 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 11:10:33,218 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 11:10:33,218 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 11:10:33,218 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 11:10:33,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 11:10:33,219 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 11:10:33,219 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 11:10:33,219 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 11:10:33,219 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 11:10:33,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 11:10:33,220 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 11:10:33,220 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 11:10:33,220 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 11:10:33,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 11:10:33,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 11:10:33,667 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 11:10:33,669 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 11:10:33,675 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 11:10:33,676 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2020-12-23 11:10:33,780 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/5432c6654/c6efde3042a34a51bca3b993b26544dc/FLAG5fff691f6 [2020-12-23 11:10:34,556 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 11:10:34,558 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2020-12-23 11:10:34,581 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/5432c6654/c6efde3042a34a51bca3b993b26544dc/FLAG5fff691f6 [2020-12-23 11:10:34,830 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/5432c6654/c6efde3042a34a51bca3b993b26544dc [2020-12-23 11:10:34,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 11:10:34,836 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 11:10:34,838 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 11:10:34,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 11:10:34,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 11:10:34,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:10:34" (1/1) ... [2020-12-23 11:10:34,845 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46457d12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:10:34, skipping insertion in model container [2020-12-23 11:10:34,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:10:34" (1/1) ... [2020-12-23 11:10:34,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 11:10:34,905 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_6164~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_6273~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~1,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~1,] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_6465~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_2~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~1,] [2020-12-23 11:10:35,345 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[7432,7445] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~2,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~2,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~2,] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~2,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] [2020-12-23 11:10:35,450 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 11:10:35,478 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_6164~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_6273~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~1,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~1,] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_6465~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_2~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~1,] [2020-12-23 11:10:35,548 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[7432,7445] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~2,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~2,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~2,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~2,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~2,] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~2,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] [2020-12-23 11:10:35,586 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 11:10:35,618 INFO L208 MainTranslator]: Completed translation [2020-12-23 11:10:35,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:10:35 WrapperNode [2020-12-23 11:10:35,619 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 11:10:35,620 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 11:10:35,620 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 11:10:35,621 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 11:10:35,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:10:35" (1/1) ... [2020-12-23 11:10:35,645 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:10:35" (1/1) ... [2020-12-23 11:10:35,731 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 11:10:35,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 11:10:35,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 11:10:35,732 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 11:10:35,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:10:35" (1/1) ... [2020-12-23 11:10:35,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:10:35" (1/1) ... [2020-12-23 11:10:35,763 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:10:35" (1/1) ... [2020-12-23 11:10:35,763 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:10:35" (1/1) ... [2020-12-23 11:10:35,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:10:35" (1/1) ... [2020-12-23 11:10:35,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:10:35" (1/1) ... [2020-12-23 11:10:35,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:10:35" (1/1) ... [2020-12-23 11:10:35,832 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 11:10:35,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 11:10:35,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 11:10:35,833 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 11:10:35,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:10:35" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 11:10:35,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 11:10:35,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 11:10:35,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 11:10:35,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 11:10:37,070 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 11:10:37,071 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-23 11:10:37,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:10:37 BoogieIcfgContainer [2020-12-23 11:10:37,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 11:10:37,076 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 11:10:37,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 11:10:37,080 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 11:10:37,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 11:10:34" (1/3) ... [2020-12-23 11:10:37,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b046494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:10:37, skipping insertion in model container [2020-12-23 11:10:37,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:10:35" (2/3) ... [2020-12-23 11:10:37,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b046494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:10:37, skipping insertion in model container [2020-12-23 11:10:37,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:10:37" (3/3) ... [2020-12-23 11:10:37,084 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2020-12-23 11:10:37,091 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 11:10:37,100 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 11:10:37,122 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 11:10:37,155 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 11:10:37,155 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 11:10:37,155 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 11:10:37,155 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 11:10:37,155 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 11:10:37,156 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 11:10:37,156 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 11:10:37,156 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 11:10:37,178 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states. [2020-12-23 11:10:37,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-23 11:10:37,188 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:10:37,189 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] [2020-12-23 11:10:37,190 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:10:37,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:10:37,197 INFO L82 PathProgramCache]: Analyzing trace with hash 1577999170, now seen corresponding path program 1 times [2020-12-23 11:10:37,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:10:37,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066754814] [2020-12-23 11:10:37,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:10:37,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:10:37,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:10:37,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066754814] [2020-12-23 11:10:37,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:10:37,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:10:37,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947191179] [2020-12-23 11:10:37,863 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:10:37,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:10:37,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:10:37,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:10:37,888 INFO L87 Difference]: Start difference. First operand 149 states. Second operand 3 states. [2020-12-23 11:10:38,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:10:38,127 INFO L93 Difference]: Finished difference Result 294 states and 487 transitions. [2020-12-23 11:10:38,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:10:38,130 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-12-23 11:10:38,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:10:38,159 INFO L225 Difference]: With dead ends: 294 [2020-12-23 11:10:38,159 INFO L226 Difference]: Without dead ends: 224 [2020-12-23 11:10:38,164 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:10:38,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-12-23 11:10:38,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 222. [2020-12-23 11:10:38,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-12-23 11:10:38,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 322 transitions. [2020-12-23 11:10:38,242 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 322 transitions. Word has length 75 [2020-12-23 11:10:38,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:10:38,243 INFO L481 AbstractCegarLoop]: Abstraction has 222 states and 322 transitions. [2020-12-23 11:10:38,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:10:38,244 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 322 transitions. [2020-12-23 11:10:38,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-23 11:10:38,247 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:10:38,247 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] [2020-12-23 11:10:38,247 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 11:10:38,248 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:10:38,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:10:38,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1882204162, now seen corresponding path program 1 times [2020-12-23 11:10:38,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:10:38,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008609798] [2020-12-23 11:10:38,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:10:38,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:10:38,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:10:38,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008609798] [2020-12-23 11:10:38,513 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:10:38,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 11:10:38,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018316888] [2020-12-23 11:10:38,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 11:10:38,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:10:38,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 11:10:38,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 11:10:38,520 INFO L87 Difference]: Start difference. First operand 222 states and 322 transitions. Second operand 6 states. [2020-12-23 11:10:38,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:10:38,991 INFO L93 Difference]: Finished difference Result 558 states and 844 transitions. [2020-12-23 11:10:38,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:10:38,993 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 77 [2020-12-23 11:10:38,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:10:38,998 INFO L225 Difference]: With dead ends: 558 [2020-12-23 11:10:38,998 INFO L226 Difference]: Without dead ends: 373 [2020-12-23 11:10:39,002 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-23 11:10:39,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2020-12-23 11:10:39,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 371. [2020-12-23 11:10:39,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2020-12-23 11:10:39,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 556 transitions. [2020-12-23 11:10:39,068 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 556 transitions. Word has length 77 [2020-12-23 11:10:39,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:10:39,068 INFO L481 AbstractCegarLoop]: Abstraction has 371 states and 556 transitions. [2020-12-23 11:10:39,068 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 11:10:39,069 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 556 transitions. [2020-12-23 11:10:39,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-23 11:10:39,072 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:10:39,072 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] [2020-12-23 11:10:39,073 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 11:10:39,073 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:10:39,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:10:39,074 INFO L82 PathProgramCache]: Analyzing trace with hash 2128024995, now seen corresponding path program 1 times [2020-12-23 11:10:39,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:10:39,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775378007] [2020-12-23 11:10:39,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:10:39,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:10:39,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:10:39,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775378007] [2020-12-23 11:10:39,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:10:39,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 11:10:39,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624087988] [2020-12-23 11:10:39,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 11:10:39,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:10:39,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 11:10:39,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 11:10:39,370 INFO L87 Difference]: Start difference. First operand 371 states and 556 transitions. Second operand 6 states. [2020-12-23 11:10:39,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:10:39,762 INFO L93 Difference]: Finished difference Result 917 states and 1412 transitions. [2020-12-23 11:10:39,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:10:39,763 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2020-12-23 11:10:39,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:10:39,767 INFO L225 Difference]: With dead ends: 917 [2020-12-23 11:10:39,768 INFO L226 Difference]: Without dead ends: 599 [2020-12-23 11:10:39,770 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-23 11:10:39,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2020-12-23 11:10:39,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 597. [2020-12-23 11:10:39,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 597 states. [2020-12-23 11:10:39,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 907 transitions. [2020-12-23 11:10:39,869 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 907 transitions. Word has length 78 [2020-12-23 11:10:39,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:10:39,870 INFO L481 AbstractCegarLoop]: Abstraction has 597 states and 907 transitions. [2020-12-23 11:10:39,870 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 11:10:39,870 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 907 transitions. [2020-12-23 11:10:39,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-23 11:10:39,874 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:10:39,874 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] [2020-12-23 11:10:39,874 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 11:10:39,875 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:10:39,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:10:39,880 INFO L82 PathProgramCache]: Analyzing trace with hash 172704802, now seen corresponding path program 1 times [2020-12-23 11:10:39,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:10:39,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34872350] [2020-12-23 11:10:39,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:10:39,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:10:40,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:10:40,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34872350] [2020-12-23 11:10:40,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:10:40,063 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 11:10:40,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995984569] [2020-12-23 11:10:40,065 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 11:10:40,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:10:40,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 11:10:40,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 11:10:40,068 INFO L87 Difference]: Start difference. First operand 597 states and 907 transitions. Second operand 6 states. [2020-12-23 11:10:40,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:10:40,500 INFO L93 Difference]: Finished difference Result 1615 states and 2495 transitions. [2020-12-23 11:10:40,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:10:40,502 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2020-12-23 11:10:40,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:10:40,509 INFO L225 Difference]: With dead ends: 1615 [2020-12-23 11:10:40,509 INFO L226 Difference]: Without dead ends: 1067 [2020-12-23 11:10:40,512 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-23 11:10:40,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2020-12-23 11:10:40,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 1065. [2020-12-23 11:10:40,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1065 states. [2020-12-23 11:10:40,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1630 transitions. [2020-12-23 11:10:40,598 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1630 transitions. Word has length 79 [2020-12-23 11:10:40,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:10:40,598 INFO L481 AbstractCegarLoop]: Abstraction has 1065 states and 1630 transitions. [2020-12-23 11:10:40,599 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 11:10:40,599 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1630 transitions. [2020-12-23 11:10:40,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-23 11:10:40,603 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:10:40,604 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:10:40,604 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 11:10:40,604 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:10:40,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:10:40,605 INFO L82 PathProgramCache]: Analyzing trace with hash 237210639, now seen corresponding path program 1 times [2020-12-23 11:10:40,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:10:40,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935450788] [2020-12-23 11:10:40,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:10:40,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:10:40,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:10:40,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935450788] [2020-12-23 11:10:40,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:10:40,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 11:10:40,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711506884] [2020-12-23 11:10:40,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 11:10:40,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:10:40,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 11:10:40,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:10:40,716 INFO L87 Difference]: Start difference. First operand 1065 states and 1630 transitions. Second operand 5 states. [2020-12-23 11:10:41,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:10:41,014 INFO L93 Difference]: Finished difference Result 2085 states and 3213 transitions. [2020-12-23 11:10:41,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:10:41,017 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 80 [2020-12-23 11:10:41,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:10:41,024 INFO L225 Difference]: With dead ends: 2085 [2020-12-23 11:10:41,024 INFO L226 Difference]: Without dead ends: 1065 [2020-12-23 11:10:41,026 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 11:10:41,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2020-12-23 11:10:41,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 1065. [2020-12-23 11:10:41,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1065 states. [2020-12-23 11:10:41,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1613 transitions. [2020-12-23 11:10:41,111 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1613 transitions. Word has length 80 [2020-12-23 11:10:41,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:10:41,111 INFO L481 AbstractCegarLoop]: Abstraction has 1065 states and 1613 transitions. [2020-12-23 11:10:41,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 11:10:41,111 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1613 transitions. [2020-12-23 11:10:41,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-23 11:10:41,116 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:10:41,116 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:10:41,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 11:10:41,116 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:10:41,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:10:41,118 INFO L82 PathProgramCache]: Analyzing trace with hash 2036404942, now seen corresponding path program 1 times [2020-12-23 11:10:41,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:10:41,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869013364] [2020-12-23 11:10:41,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:10:41,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:10:41,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:10:41,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869013364] [2020-12-23 11:10:41,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:10:41,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 11:10:41,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266765441] [2020-12-23 11:10:41,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 11:10:41,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:10:41,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 11:10:41,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:10:41,247 INFO L87 Difference]: Start difference. First operand 1065 states and 1613 transitions. Second operand 5 states. [2020-12-23 11:10:41,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:10:41,485 INFO L93 Difference]: Finished difference Result 2089 states and 3184 transitions. [2020-12-23 11:10:41,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 11:10:41,486 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 81 [2020-12-23 11:10:41,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:10:41,493 INFO L225 Difference]: With dead ends: 2089 [2020-12-23 11:10:41,493 INFO L226 Difference]: Without dead ends: 1065 [2020-12-23 11:10:41,495 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 11:10:41,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2020-12-23 11:10:41,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 1065. [2020-12-23 11:10:41,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1065 states. [2020-12-23 11:10:41,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1596 transitions. [2020-12-23 11:10:41,609 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1596 transitions. Word has length 81 [2020-12-23 11:10:41,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:10:41,611 INFO L481 AbstractCegarLoop]: Abstraction has 1065 states and 1596 transitions. [2020-12-23 11:10:41,611 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 11:10:41,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1596 transitions. [2020-12-23 11:10:41,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-23 11:10:41,614 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:10:41,614 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:10:41,615 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 11:10:41,615 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:10:41,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:10:41,617 INFO L82 PathProgramCache]: Analyzing trace with hash 628219771, now seen corresponding path program 1 times [2020-12-23 11:10:41,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:10:41,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181685373] [2020-12-23 11:10:41,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:10:41,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:10:41,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:10:41,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181685373] [2020-12-23 11:10:41,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:10:41,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 11:10:41,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753734309] [2020-12-23 11:10:41,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 11:10:41,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:10:41,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 11:10:41,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-23 11:10:41,790 INFO L87 Difference]: Start difference. First operand 1065 states and 1596 transitions. Second operand 7 states. [2020-12-23 11:10:42,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:10:42,373 INFO L93 Difference]: Finished difference Result 5805 states and 8838 transitions. [2020-12-23 11:10:42,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 11:10:42,374 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 82 [2020-12-23 11:10:42,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:10:42,401 INFO L225 Difference]: With dead ends: 5805 [2020-12-23 11:10:42,401 INFO L226 Difference]: Without dead ends: 4915 [2020-12-23 11:10:42,406 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-23 11:10:42,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4915 states. [2020-12-23 11:10:42,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4915 to 1525. [2020-12-23 11:10:42,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1525 states. [2020-12-23 11:10:42,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 2304 transitions. [2020-12-23 11:10:42,624 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 2304 transitions. Word has length 82 [2020-12-23 11:10:42,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:10:42,625 INFO L481 AbstractCegarLoop]: Abstraction has 1525 states and 2304 transitions. [2020-12-23 11:10:42,625 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 11:10:42,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 2304 transitions. [2020-12-23 11:10:42,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-23 11:10:42,632 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:10:42,633 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:10:42,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 11:10:42,633 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:10:42,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:10:42,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1374029307, now seen corresponding path program 1 times [2020-12-23 11:10:42,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:10:42,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551018594] [2020-12-23 11:10:42,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:10:42,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:10:42,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:10:42,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551018594] [2020-12-23 11:10:42,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:10:42,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 11:10:42,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541965148] [2020-12-23 11:10:42,775 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 11:10:42,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:10:42,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 11:10:42,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-23 11:10:42,776 INFO L87 Difference]: Start difference. First operand 1525 states and 2304 transitions. Second operand 7 states. [2020-12-23 11:10:43,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:10:43,413 INFO L93 Difference]: Finished difference Result 6205 states and 9452 transitions. [2020-12-23 11:10:43,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 11:10:43,414 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 82 [2020-12-23 11:10:43,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:10:43,443 INFO L225 Difference]: With dead ends: 6205 [2020-12-23 11:10:43,443 INFO L226 Difference]: Without dead ends: 5315 [2020-12-23 11:10:43,447 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-23 11:10:43,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5315 states. [2020-12-23 11:10:43,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5315 to 2497. [2020-12-23 11:10:43,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2497 states. [2020-12-23 11:10:43,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2497 states to 2497 states and 3796 transitions. [2020-12-23 11:10:43,759 INFO L78 Accepts]: Start accepts. Automaton has 2497 states and 3796 transitions. Word has length 82 [2020-12-23 11:10:43,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:10:43,759 INFO L481 AbstractCegarLoop]: Abstraction has 2497 states and 3796 transitions. [2020-12-23 11:10:43,759 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 11:10:43,760 INFO L276 IsEmpty]: Start isEmpty. Operand 2497 states and 3796 transitions. [2020-12-23 11:10:43,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-23 11:10:43,761 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:10:43,761 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:10:43,762 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 11:10:43,763 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:10:43,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:10:43,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1344416826, now seen corresponding path program 1 times [2020-12-23 11:10:43,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:10:43,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608797733] [2020-12-23 11:10:43,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:10:43,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:10:43,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:10:43,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608797733] [2020-12-23 11:10:43,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:10:43,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:10:43,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791513673] [2020-12-23 11:10:43,837 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:10:43,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:10:43,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:10:43,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:10:43,844 INFO L87 Difference]: Start difference. First operand 2497 states and 3796 transitions. Second operand 3 states. [2020-12-23 11:10:44,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:10:44,298 INFO L93 Difference]: Finished difference Result 6149 states and 9406 transitions. [2020-12-23 11:10:44,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:10:44,299 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 82 [2020-12-23 11:10:44,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:10:44,320 INFO L225 Difference]: With dead ends: 6149 [2020-12-23 11:10:44,320 INFO L226 Difference]: Without dead ends: 3879 [2020-12-23 11:10:44,326 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:10:44,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3879 states. [2020-12-23 11:10:44,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3879 to 3877. [2020-12-23 11:10:44,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3877 states. [2020-12-23 11:10:44,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3877 states to 3877 states and 5856 transitions. [2020-12-23 11:10:44,744 INFO L78 Accepts]: Start accepts. Automaton has 3877 states and 5856 transitions. Word has length 82 [2020-12-23 11:10:44,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:10:44,745 INFO L481 AbstractCegarLoop]: Abstraction has 3877 states and 5856 transitions. [2020-12-23 11:10:44,745 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:10:44,745 INFO L276 IsEmpty]: Start isEmpty. Operand 3877 states and 5856 transitions. [2020-12-23 11:10:44,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-23 11:10:44,747 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:10:44,747 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:10:44,747 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 11:10:44,748 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:10:44,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:10:44,748 INFO L82 PathProgramCache]: Analyzing trace with hash 1136565019, now seen corresponding path program 1 times [2020-12-23 11:10:44,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:10:44,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586410933] [2020-12-23 11:10:44,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:10:44,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:10:44,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:10:44,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586410933] [2020-12-23 11:10:44,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:10:44,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 11:10:44,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164042650] [2020-12-23 11:10:44,807 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 11:10:44,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:10:44,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 11:10:44,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:10:44,812 INFO L87 Difference]: Start difference. First operand 3877 states and 5856 transitions. Second operand 3 states. [2020-12-23 11:10:45,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:10:45,626 INFO L93 Difference]: Finished difference Result 10785 states and 16290 transitions. [2020-12-23 11:10:45,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 11:10:45,627 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 82 [2020-12-23 11:10:45,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:10:45,663 INFO L225 Difference]: With dead ends: 10785 [2020-12-23 11:10:45,664 INFO L226 Difference]: Without dead ends: 7135 [2020-12-23 11:10:45,674 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 11:10:45,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7135 states. [2020-12-23 11:10:46,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7135 to 7005. [2020-12-23 11:10:46,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7005 states. [2020-12-23 11:10:46,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7005 states to 7005 states and 10440 transitions. [2020-12-23 11:10:46,549 INFO L78 Accepts]: Start accepts. Automaton has 7005 states and 10440 transitions. Word has length 82 [2020-12-23 11:10:46,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:10:46,550 INFO L481 AbstractCegarLoop]: Abstraction has 7005 states and 10440 transitions. [2020-12-23 11:10:46,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 11:10:46,550 INFO L276 IsEmpty]: Start isEmpty. Operand 7005 states and 10440 transitions. [2020-12-23 11:10:46,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-23 11:10:46,552 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:10:46,552 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:10:46,552 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 11:10:46,553 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:10:46,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:10:46,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1295122343, now seen corresponding path program 1 times [2020-12-23 11:10:46,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:10:46,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485750157] [2020-12-23 11:10:46,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:10:46,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:10:46,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:10:46,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485750157] [2020-12-23 11:10:46,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:10:46,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 11:10:46,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461887179] [2020-12-23 11:10:46,669 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 11:10:46,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:10:46,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 11:10:46,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-23 11:10:46,670 INFO L87 Difference]: Start difference. First operand 7005 states and 10440 transitions. Second operand 7 states. [2020-12-23 11:10:48,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:10:48,281 INFO L93 Difference]: Finished difference Result 18863 states and 28190 transitions. [2020-12-23 11:10:48,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 11:10:48,281 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 82 [2020-12-23 11:10:48,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:10:48,324 INFO L225 Difference]: With dead ends: 18863 [2020-12-23 11:10:48,324 INFO L226 Difference]: Without dead ends: 16349 [2020-12-23 11:10:48,334 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-23 11:10:48,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16349 states. [2020-12-23 11:10:49,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16349 to 8713. [2020-12-23 11:10:49,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8713 states. [2020-12-23 11:10:49,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8713 states to 8713 states and 12988 transitions. [2020-12-23 11:10:49,315 INFO L78 Accepts]: Start accepts. Automaton has 8713 states and 12988 transitions. Word has length 82 [2020-12-23 11:10:49,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:10:49,315 INFO L481 AbstractCegarLoop]: Abstraction has 8713 states and 12988 transitions. [2020-12-23 11:10:49,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 11:10:49,316 INFO L276 IsEmpty]: Start isEmpty. Operand 8713 states and 12988 transitions. [2020-12-23 11:10:49,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-23 11:10:49,318 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:10:49,318 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:10:49,318 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-23 11:10:49,318 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:10:49,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:10:49,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1184031025, now seen corresponding path program 1 times [2020-12-23 11:10:49,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:10:49,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75102231] [2020-12-23 11:10:49,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:10:49,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:10:49,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:10:49,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75102231] [2020-12-23 11:10:49,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:10:49,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 11:10:49,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289434488] [2020-12-23 11:10:49,433 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 11:10:49,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:10:49,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 11:10:49,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-23 11:10:49,434 INFO L87 Difference]: Start difference. First operand 8713 states and 12988 transitions. Second operand 7 states. [2020-12-23 11:10:50,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:10:50,953 INFO L93 Difference]: Finished difference Result 21069 states and 31494 transitions. [2020-12-23 11:10:50,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 11:10:50,954 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 82 [2020-12-23 11:10:50,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:10:50,993 INFO L225 Difference]: With dead ends: 21069 [2020-12-23 11:10:50,994 INFO L226 Difference]: Without dead ends: 18555 [2020-12-23 11:10:51,002 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-23 11:10:51,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18555 states. [2020-12-23 11:10:52,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18555 to 10460. [2020-12-23 11:10:52,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10460 states. [2020-12-23 11:10:52,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10460 states to 10460 states and 15596 transitions. [2020-12-23 11:10:52,094 INFO L78 Accepts]: Start accepts. Automaton has 10460 states and 15596 transitions. Word has length 82 [2020-12-23 11:10:52,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:10:52,095 INFO L481 AbstractCegarLoop]: Abstraction has 10460 states and 15596 transitions. [2020-12-23 11:10:52,095 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 11:10:52,095 INFO L276 IsEmpty]: Start isEmpty. Operand 10460 states and 15596 transitions. [2020-12-23 11:10:52,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-23 11:10:52,097 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:10:52,098 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:10:52,098 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-23 11:10:52,098 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:10:52,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:10:52,099 INFO L82 PathProgramCache]: Analyzing trace with hash 392667471, now seen corresponding path program 1 times [2020-12-23 11:10:52,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:10:52,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511121628] [2020-12-23 11:10:52,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:10:52,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:10:52,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:10:52,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511121628] [2020-12-23 11:10:52,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:10:52,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 11:10:52,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019677763] [2020-12-23 11:10:52,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 11:10:52,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:10:52,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 11:10:52,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-23 11:10:52,217 INFO L87 Difference]: Start difference. First operand 10460 states and 15596 transitions. Second operand 7 states. [2020-12-23 11:10:54,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:10:54,116 INFO L93 Difference]: Finished difference Result 22621 states and 33810 transitions. [2020-12-23 11:10:54,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 11:10:54,117 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 82 [2020-12-23 11:10:54,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:10:54,168 INFO L225 Difference]: With dead ends: 22621 [2020-12-23 11:10:54,168 INFO L226 Difference]: Without dead ends: 20107 [2020-12-23 11:10:54,176 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-23 11:10:54,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20107 states. [2020-12-23 11:10:55,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20107 to 12188. [2020-12-23 11:10:55,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12188 states. [2020-12-23 11:10:55,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12188 states to 12188 states and 18176 transitions. [2020-12-23 11:10:55,364 INFO L78 Accepts]: Start accepts. Automaton has 12188 states and 18176 transitions. Word has length 82 [2020-12-23 11:10:55,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:10:55,365 INFO L481 AbstractCegarLoop]: Abstraction has 12188 states and 18176 transitions. [2020-12-23 11:10:55,365 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 11:10:55,365 INFO L276 IsEmpty]: Start isEmpty. Operand 12188 states and 18176 transitions. [2020-12-23 11:10:55,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-23 11:10:55,367 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:10:55,367 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:10:55,367 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-23 11:10:55,367 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:10:55,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:10:55,368 INFO L82 PathProgramCache]: Analyzing trace with hash -1274660632, now seen corresponding path program 1 times [2020-12-23 11:10:55,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:10:55,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565525544] [2020-12-23 11:10:55,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:10:55,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:10:55,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:10:55,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565525544] [2020-12-23 11:10:55,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:10:55,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 11:10:55,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98265334] [2020-12-23 11:10:55,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 11:10:55,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:10:55,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 11:10:55,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 11:10:55,538 INFO L87 Difference]: Start difference. First operand 12188 states and 18176 transitions. Second operand 5 states. [2020-12-23 11:10:57,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:10:57,463 INFO L93 Difference]: Finished difference Result 20742 states and 30881 transitions. [2020-12-23 11:10:57,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 11:10:57,463 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 83 [2020-12-23 11:10:57,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:10:57,501 INFO L225 Difference]: With dead ends: 20742 [2020-12-23 11:10:57,501 INFO L226 Difference]: Without dead ends: 20740 [2020-12-23 11:10:57,508 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-23 11:10:57,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20740 states. [2020-12-23 11:10:59,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20740 to 12284. [2020-12-23 11:10:59,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12284 states. [2020-12-23 11:10:59,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12284 states to 12284 states and 18216 transitions. [2020-12-23 11:10:59,150 INFO L78 Accepts]: Start accepts. Automaton has 12284 states and 18216 transitions. Word has length 83 [2020-12-23 11:10:59,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:10:59,150 INFO L481 AbstractCegarLoop]: Abstraction has 12284 states and 18216 transitions. [2020-12-23 11:10:59,150 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 11:10:59,150 INFO L276 IsEmpty]: Start isEmpty. Operand 12284 states and 18216 transitions. [2020-12-23 11:10:59,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-23 11:10:59,153 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:10:59,153 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:10:59,153 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-23 11:10:59,153 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:10:59,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:10:59,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1071199524, now seen corresponding path program 1 times [2020-12-23 11:10:59,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:10:59,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566488137] [2020-12-23 11:10:59,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:10:59,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:10:59,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:10:59,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566488137] [2020-12-23 11:10:59,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:10:59,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-23 11:10:59,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330809491] [2020-12-23 11:10:59,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 11:10:59,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:10:59,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 11:10:59,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-23 11:10:59,440 INFO L87 Difference]: Start difference. First operand 12284 states and 18216 transitions. Second operand 9 states. [2020-12-23 11:11:03,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:11:03,305 INFO L93 Difference]: Finished difference Result 42101 states and 62579 transitions. [2020-12-23 11:11:03,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-23 11:11:03,305 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-12-23 11:11:03,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:11:03,347 INFO L225 Difference]: With dead ends: 42101 [2020-12-23 11:11:03,347 INFO L226 Difference]: Without dead ends: 30015 [2020-12-23 11:11:03,370 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2020-12-23 11:11:03,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30015 states. [2020-12-23 11:11:04,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30015 to 12203. [2020-12-23 11:11:04,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12203 states. [2020-12-23 11:11:04,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12203 states to 12203 states and 18095 transitions. [2020-12-23 11:11:04,907 INFO L78 Accepts]: Start accepts. Automaton has 12203 states and 18095 transitions. Word has length 83 [2020-12-23 11:11:04,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:11:04,907 INFO L481 AbstractCegarLoop]: Abstraction has 12203 states and 18095 transitions. [2020-12-23 11:11:04,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 11:11:04,908 INFO L276 IsEmpty]: Start isEmpty. Operand 12203 states and 18095 transitions. [2020-12-23 11:11:04,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-12-23 11:11:04,910 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:11:04,910 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:11:04,910 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-23 11:11:04,911 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:11:04,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:11:04,911 INFO L82 PathProgramCache]: Analyzing trace with hash -49884989, now seen corresponding path program 1 times [2020-12-23 11:11:04,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:11:04,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368997705] [2020-12-23 11:11:04,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:11:04,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:11:05,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:11:05,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368997705] [2020-12-23 11:11:05,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:11:05,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 11:11:05,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807762712] [2020-12-23 11:11:05,187 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 11:11:05,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:11:05,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 11:11:05,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-12-23 11:11:05,188 INFO L87 Difference]: Start difference. First operand 12203 states and 18095 transitions. Second operand 10 states. [2020-12-23 11:11:08,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:11:08,280 INFO L93 Difference]: Finished difference Result 26590 states and 39384 transitions. [2020-12-23 11:11:08,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-23 11:11:08,281 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 84 [2020-12-23 11:11:08,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:11:08,296 INFO L225 Difference]: With dead ends: 26590 [2020-12-23 11:11:08,296 INFO L226 Difference]: Without dead ends: 14501 [2020-12-23 11:11:08,314 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2020-12-23 11:11:08,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14501 states. [2020-12-23 11:11:09,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14501 to 12203. [2020-12-23 11:11:09,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12203 states. [2020-12-23 11:11:09,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12203 states to 12203 states and 18093 transitions. [2020-12-23 11:11:09,753 INFO L78 Accepts]: Start accepts. Automaton has 12203 states and 18093 transitions. Word has length 84 [2020-12-23 11:11:09,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:11:09,753 INFO L481 AbstractCegarLoop]: Abstraction has 12203 states and 18093 transitions. [2020-12-23 11:11:09,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 11:11:09,754 INFO L276 IsEmpty]: Start isEmpty. Operand 12203 states and 18093 transitions. [2020-12-23 11:11:09,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-12-23 11:11:09,756 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:11:09,756 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:11:09,756 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-23 11:11:09,756 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:11:09,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:11:09,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1500586117, now seen corresponding path program 1 times [2020-12-23 11:11:09,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:11:09,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189027852] [2020-12-23 11:11:09,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:11:09,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:11:10,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:11:10,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189027852] [2020-12-23 11:11:10,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:11:10,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 11:11:10,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896964631] [2020-12-23 11:11:10,133 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 11:11:10,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:11:10,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 11:11:10,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-12-23 11:11:10,135 INFO L87 Difference]: Start difference. First operand 12203 states and 18093 transitions. Second operand 10 states. [2020-12-23 11:11:14,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:11:14,477 INFO L93 Difference]: Finished difference Result 36819 states and 54429 transitions. [2020-12-23 11:11:14,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-23 11:11:14,477 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 84 [2020-12-23 11:11:14,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:11:14,510 INFO L225 Difference]: With dead ends: 36819 [2020-12-23 11:11:14,510 INFO L226 Difference]: Without dead ends: 24740 [2020-12-23 11:11:14,528 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=127, Invalid=335, Unknown=0, NotChecked=0, Total=462 [2020-12-23 11:11:14,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24740 states. [2020-12-23 11:11:16,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24740 to 12203. [2020-12-23 11:11:16,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12203 states. [2020-12-23 11:11:16,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12203 states to 12203 states and 18089 transitions. [2020-12-23 11:11:16,445 INFO L78 Accepts]: Start accepts. Automaton has 12203 states and 18089 transitions. Word has length 84 [2020-12-23 11:11:16,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:11:16,445 INFO L481 AbstractCegarLoop]: Abstraction has 12203 states and 18089 transitions. [2020-12-23 11:11:16,445 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 11:11:16,445 INFO L276 IsEmpty]: Start isEmpty. Operand 12203 states and 18089 transitions. [2020-12-23 11:11:16,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-12-23 11:11:16,446 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:11:16,446 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 11:11:16,447 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-23 11:11:16,447 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:11:16,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:11:16,447 INFO L82 PathProgramCache]: Analyzing trace with hash 842057330, now seen corresponding path program 1 times [2020-12-23 11:11:16,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:11:16,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076948818] [2020-12-23 11:11:16,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:11:16,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:11:16,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:11:16,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076948818] [2020-12-23 11:11:16,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:11:16,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 11:11:16,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506744459] [2020-12-23 11:11:16,685 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 11:11:16,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:11:16,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 11:11:16,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-12-23 11:11:16,686 INFO L87 Difference]: Start difference. First operand 12203 states and 18089 transitions. Second operand 10 states. [2020-12-23 11:11:21,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:11:21,293 INFO L93 Difference]: Finished difference Result 36759 states and 54335 transitions. [2020-12-23 11:11:21,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-23 11:11:21,293 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-12-23 11:11:21,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:11:21,323 INFO L225 Difference]: With dead ends: 36759 [2020-12-23 11:11:21,323 INFO L226 Difference]: Without dead ends: 24730 [2020-12-23 11:11:21,339 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2020-12-23 11:11:21,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24730 states. [2020-12-23 11:11:23,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24730 to 12203. [2020-12-23 11:11:23,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12203 states. [2020-12-23 11:11:23,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12203 states to 12203 states and 18083 transitions. [2020-12-23 11:11:23,393 INFO L78 Accepts]: Start accepts. Automaton has 12203 states and 18083 transitions. Word has length 85 [2020-12-23 11:11:23,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:11:23,393 INFO L481 AbstractCegarLoop]: Abstraction has 12203 states and 18083 transitions. [2020-12-23 11:11:23,393 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 11:11:23,393 INFO L276 IsEmpty]: Start isEmpty. Operand 12203 states and 18083 transitions. [2020-12-23 11:11:23,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-12-23 11:11:23,395 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:11:23,395 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] [2020-12-23 11:11:23,395 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-23 11:11:23,395 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:11:23,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:11:23,395 INFO L82 PathProgramCache]: Analyzing trace with hash 2050544046, now seen corresponding path program 1 times [2020-12-23 11:11:23,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:11:23,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915174810] [2020-12-23 11:11:23,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:11:23,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:11:23,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:11:23,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915174810] [2020-12-23 11:11:23,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:11:23,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 11:11:23,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500842911] [2020-12-23 11:11:23,632 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 11:11:23,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:11:23,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 11:11:23,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-12-23 11:11:23,633 INFO L87 Difference]: Start difference. First operand 12203 states and 18083 transitions. Second operand 10 states. [2020-12-23 11:11:27,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:11:27,717 INFO L93 Difference]: Finished difference Result 30476 states and 45078 transitions. [2020-12-23 11:11:27,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-23 11:11:27,718 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 86 [2020-12-23 11:11:27,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:11:27,741 INFO L225 Difference]: With dead ends: 30476 [2020-12-23 11:11:27,742 INFO L226 Difference]: Without dead ends: 18477 [2020-12-23 11:11:27,752 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2020-12-23 11:11:27,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18477 states. [2020-12-23 11:11:29,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18477 to 12203. [2020-12-23 11:11:29,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12203 states. [2020-12-23 11:11:29,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12203 states to 12203 states and 18070 transitions. [2020-12-23 11:11:29,719 INFO L78 Accepts]: Start accepts. Automaton has 12203 states and 18070 transitions. Word has length 86 [2020-12-23 11:11:29,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:11:29,719 INFO L481 AbstractCegarLoop]: Abstraction has 12203 states and 18070 transitions. [2020-12-23 11:11:29,719 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 11:11:29,719 INFO L276 IsEmpty]: Start isEmpty. Operand 12203 states and 18070 transitions. [2020-12-23 11:11:29,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-12-23 11:11:29,720 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:11:29,720 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] [2020-12-23 11:11:29,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-23 11:11:29,721 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:11:29,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:11:29,721 INFO L82 PathProgramCache]: Analyzing trace with hash 420822697, now seen corresponding path program 1 times [2020-12-23 11:11:29,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:11:29,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701832922] [2020-12-23 11:11:29,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:11:29,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:11:31,292 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-12-23 11:11:31,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:11:31,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701832922] [2020-12-23 11:11:31,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:11:31,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2020-12-23 11:11:31,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858517828] [2020-12-23 11:11:31,654 INFO L461 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-12-23 11:11:31,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:11:31,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-12-23 11:11:31,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=978, Unknown=0, NotChecked=0, Total=1056 [2020-12-23 11:11:31,655 INFO L87 Difference]: Start difference. First operand 12203 states and 18070 transitions. Second operand 33 states. [2020-12-23 11:11:32,003 WARN L197 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2020-12-23 11:11:32,687 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2020-12-23 11:11:32,892 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2020-12-23 11:11:33,099 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2020-12-23 11:11:33,318 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2020-12-23 11:11:33,532 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2020-12-23 11:11:34,040 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2020-12-23 11:11:34,283 WARN L197 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2020-12-23 11:11:34,569 WARN L197 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-12-23 11:11:34,863 WARN L197 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2020-12-23 11:11:35,244 WARN L197 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 83 [2020-12-23 11:11:35,644 WARN L197 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-12-23 11:11:36,129 WARN L197 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 96 [2020-12-23 11:11:36,626 WARN L197 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 100 [2020-12-23 11:11:37,210 WARN L197 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 109 [2020-12-23 11:11:37,496 WARN L197 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2020-12-23 11:11:37,778 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2020-12-23 11:11:39,709 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-12-23 11:11:40,453 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-12-23 11:11:40,970 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2020-12-23 11:11:50,126 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2020-12-23 11:12:03,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:12:03,932 INFO L93 Difference]: Finished difference Result 89429 states and 132800 transitions. [2020-12-23 11:12:03,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-12-23 11:12:03,932 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 87 [2020-12-23 11:12:03,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:12:04,038 INFO L225 Difference]: With dead ends: 89429 [2020-12-23 11:12:04,038 INFO L226 Difference]: Without dead ends: 85176 [2020-12-23 11:12:04,065 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 858 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=722, Invalid=4390, Unknown=0, NotChecked=0, Total=5112 [2020-12-23 11:12:04,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85176 states. [2020-12-23 11:12:07,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85176 to 12236. [2020-12-23 11:12:07,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12236 states. [2020-12-23 11:12:07,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12236 states to 12236 states and 18111 transitions. [2020-12-23 11:12:07,733 INFO L78 Accepts]: Start accepts. Automaton has 12236 states and 18111 transitions. Word has length 87 [2020-12-23 11:12:07,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:12:07,734 INFO L481 AbstractCegarLoop]: Abstraction has 12236 states and 18111 transitions. [2020-12-23 11:12:07,734 INFO L482 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-12-23 11:12:07,734 INFO L276 IsEmpty]: Start isEmpty. Operand 12236 states and 18111 transitions. [2020-12-23 11:12:07,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-12-23 11:12:07,735 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:12:07,735 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] [2020-12-23 11:12:07,735 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-23 11:12:07,735 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:12:07,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:12:07,736 INFO L82 PathProgramCache]: Analyzing trace with hash -891179609, now seen corresponding path program 1 times [2020-12-23 11:12:07,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:12:07,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690177933] [2020-12-23 11:12:07,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:12:07,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:12:10,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:12:10,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690177933] [2020-12-23 11:12:10,244 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:12:10,244 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2020-12-23 11:12:10,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129235713] [2020-12-23 11:12:10,245 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-12-23 11:12:10,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:12:10,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-12-23 11:12:10,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=1019, Unknown=0, NotChecked=0, Total=1122 [2020-12-23 11:12:10,246 INFO L87 Difference]: Start difference. First operand 12236 states and 18111 transitions. Second operand 34 states. [2020-12-23 11:12:10,854 WARN L197 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 120 [2020-12-23 11:12:11,543 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 34 [2020-12-23 11:12:11,741 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 36 [2020-12-23 11:12:11,985 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-12-23 11:12:12,352 WARN L197 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2020-12-23 11:12:12,654 WARN L197 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2020-12-23 11:12:12,960 WARN L197 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2020-12-23 11:12:13,279 WARN L197 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2020-12-23 11:12:13,953 WARN L197 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2020-12-23 11:12:14,333 WARN L197 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2020-12-23 11:12:14,786 WARN L197 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2020-12-23 11:12:15,287 WARN L197 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2020-12-23 11:12:15,870 WARN L197 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 99 [2020-12-23 11:12:16,512 WARN L197 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 108 [2020-12-23 11:12:17,251 WARN L197 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 116 [2020-12-23 11:12:18,063 WARN L197 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 130 [2020-12-23 11:12:19,018 WARN L197 SmtUtils]: Spent 807.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 146 [2020-12-23 11:12:19,477 WARN L197 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 80 [2020-12-23 11:12:19,911 WARN L197 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 80 [2020-12-23 11:12:20,199 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2020-12-23 11:12:20,542 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2020-12-23 11:12:20,803 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2020-12-23 11:12:21,064 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2020-12-23 11:12:21,388 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2020-12-23 11:12:21,598 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-12-23 11:12:21,843 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2020-12-23 11:12:22,285 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2020-12-23 11:12:23,007 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2020-12-23 11:12:23,694 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2020-12-23 11:12:24,180 WARN L197 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2020-12-23 11:12:25,083 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2020-12-23 11:12:25,470 WARN L197 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2020-12-23 11:12:26,173 WARN L197 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2020-12-23 11:12:26,534 WARN L197 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2020-12-23 11:12:26,856 WARN L197 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2020-12-23 11:12:27,500 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2020-12-23 11:12:30,318 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2020-12-23 11:12:32,946 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2020-12-23 11:12:33,638 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2020-12-23 11:12:40,080 WARN L197 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2020-12-23 11:13:05,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:13:05,333 INFO L93 Difference]: Finished difference Result 109595 states and 162835 transitions. [2020-12-23 11:13:05,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2020-12-23 11:13:05,334 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 87 [2020-12-23 11:13:05,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:13:05,481 INFO L225 Difference]: With dead ends: 109595 [2020-12-23 11:13:05,481 INFO L226 Difference]: Without dead ends: 107063 [2020-12-23 11:13:05,510 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1470 ImplicationChecksByTransitivity, 16.3s TimeCoverageRelationStatistics Valid=1021, Invalid=5785, Unknown=0, NotChecked=0, Total=6806 [2020-12-23 11:13:05,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107063 states. [2020-12-23 11:13:10,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107063 to 12252. [2020-12-23 11:13:10,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12252 states. [2020-12-23 11:13:10,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12252 states to 12252 states and 18132 transitions. [2020-12-23 11:13:10,311 INFO L78 Accepts]: Start accepts. Automaton has 12252 states and 18132 transitions. Word has length 87 [2020-12-23 11:13:10,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:13:10,311 INFO L481 AbstractCegarLoop]: Abstraction has 12252 states and 18132 transitions. [2020-12-23 11:13:10,311 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-12-23 11:13:10,311 INFO L276 IsEmpty]: Start isEmpty. Operand 12252 states and 18132 transitions. [2020-12-23 11:13:10,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-12-23 11:13:10,313 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:13:10,313 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] [2020-12-23 11:13:10,313 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-23 11:13:10,313 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:13:10,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:13:10,313 INFO L82 PathProgramCache]: Analyzing trace with hash 927353448, now seen corresponding path program 1 times [2020-12-23 11:13:10,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:13:10,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039130226] [2020-12-23 11:13:10,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:13:10,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:13:13,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:13:13,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039130226] [2020-12-23 11:13:13,128 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:13:13,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2020-12-23 11:13:13,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426663646] [2020-12-23 11:13:13,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-12-23 11:13:13,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:13:13,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-12-23 11:13:13,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=1041, Unknown=0, NotChecked=0, Total=1122 [2020-12-23 11:13:13,129 INFO L87 Difference]: Start difference. First operand 12252 states and 18132 transitions. Second operand 34 states. [2020-12-23 11:13:13,896 WARN L197 SmtUtils]: Spent 661.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 131 [2020-12-23 11:13:14,707 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 32 [2020-12-23 11:13:14,937 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 34 [2020-12-23 11:13:15,232 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 42 [2020-12-23 11:13:15,552 WARN L197 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2020-12-23 11:13:15,876 WARN L197 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2020-12-23 11:13:16,203 WARN L197 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2020-12-23 11:13:16,516 WARN L197 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-12-23 11:13:17,318 WARN L197 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2020-12-23 11:13:17,760 WARN L197 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 82 [2020-12-23 11:13:18,378 WARN L197 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 107 [2020-12-23 11:13:19,202 WARN L197 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 126 [2020-12-23 11:13:20,205 WARN L197 SmtUtils]: Spent 786.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 134 [2020-12-23 11:13:21,277 WARN L197 SmtUtils]: Spent 902.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 144 [2020-12-23 11:13:22,604 WARN L197 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 167 DAG size of output: 155 [2020-12-23 11:13:24,009 WARN L197 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 175 DAG size of output: 162 [2020-12-23 11:13:25,606 WARN L197 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 184 DAG size of output: 171 [2020-12-23 11:13:26,110 WARN L197 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2020-12-23 11:13:26,590 WARN L197 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2020-12-23 11:13:27,072 WARN L197 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2020-12-23 11:13:27,547 WARN L197 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2020-12-23 11:13:27,898 WARN L197 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65 [2020-12-23 11:13:28,247 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2020-12-23 11:13:28,583 WARN L197 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2020-12-23 11:13:28,840 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2020-12-23 11:13:29,259 WARN L197 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2020-12-23 11:13:29,864 WARN L197 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2020-12-23 11:13:30,348 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2020-12-23 11:13:31,101 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 36 [2020-12-23 11:13:31,671 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2020-12-23 11:13:31,885 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2020-12-23 11:13:32,440 WARN L197 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 42 [2020-12-23 11:13:32,700 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 31 [2020-12-23 11:13:34,477 WARN L197 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2020-12-23 11:13:43,046 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 33 [2020-12-23 11:13:47,020 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 30 [2020-12-23 11:14:11,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 11:14:11,744 INFO L93 Difference]: Finished difference Result 80129 states and 118925 transitions. [2020-12-23 11:14:11,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-12-23 11:14:11,747 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 87 [2020-12-23 11:14:11,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 11:14:11,830 INFO L225 Difference]: With dead ends: 80129 [2020-12-23 11:14:11,830 INFO L226 Difference]: Without dead ends: 77598 [2020-12-23 11:14:11,848 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 961 ImplicationChecksByTransitivity, 18.9s TimeCoverageRelationStatistics Valid=801, Invalid=4601, Unknown=0, NotChecked=0, Total=5402 [2020-12-23 11:14:11,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77598 states. [2020-12-23 11:14:16,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77598 to 12256. [2020-12-23 11:14:16,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12256 states. [2020-12-23 11:14:16,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12256 states to 12256 states and 18136 transitions. [2020-12-23 11:14:16,356 INFO L78 Accepts]: Start accepts. Automaton has 12256 states and 18136 transitions. Word has length 87 [2020-12-23 11:14:16,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 11:14:16,356 INFO L481 AbstractCegarLoop]: Abstraction has 12256 states and 18136 transitions. [2020-12-23 11:14:16,356 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-12-23 11:14:16,356 INFO L276 IsEmpty]: Start isEmpty. Operand 12256 states and 18136 transitions. [2020-12-23 11:14:16,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-12-23 11:14:16,357 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 11:14:16,358 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] [2020-12-23 11:14:16,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-23 11:14:16,358 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 11:14:16,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 11:14:16,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1358537207, now seen corresponding path program 1 times [2020-12-23 11:14:16,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 11:14:16,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502108112] [2020-12-23 11:14:16,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 11:14:16,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 11:14:19,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 11:14:19,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502108112] [2020-12-23 11:14:19,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 11:14:19,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2020-12-23 11:14:19,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195831] [2020-12-23 11:14:19,791 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-12-23 11:14:19,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 11:14:19,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-12-23 11:14:19,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1018, Unknown=0, NotChecked=0, Total=1122 [2020-12-23 11:14:19,792 INFO L87 Difference]: Start difference. First operand 12256 states and 18136 transitions. Second operand 34 states. [2020-12-23 11:14:20,604 WARN L197 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 116 [2020-12-23 11:14:21,245 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 31 [2020-12-23 11:14:21,482 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 32 [2020-12-23 11:14:21,977 WARN L197 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2020-12-23 11:14:22,308 WARN L197 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 42 [2020-12-23 11:14:22,641 WARN L197 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-12-23 11:14:22,984 WARN L197 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-12-23 11:14:23,328 WARN L197 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-12-23 11:14:24,239 WARN L197 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-12-23 11:14:24,724 WARN L197 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2020-12-23 11:14:25,347 WARN L197 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2020-12-23 11:14:25,988 WARN L197 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2020-12-23 11:14:26,777 WARN L197 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 98 [2020-12-23 11:14:27,627 WARN L197 SmtUtils]: Spent 710.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 108 [2020-12-23 11:14:28,629 WARN L197 SmtUtils]: Spent 818.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 119 [2020-12-23 11:14:29,687 WARN L197 SmtUtils]: Spent 916.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 128 [2020-12-23 11:14:30,919 WARN L197 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 152 DAG size of output: 139 [2020-12-23 11:14:31,441 WARN L197 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-12-23 11:14:31,945 WARN L197 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-12-23 11:14:32,308 WARN L197 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-12-23 11:14:32,928 WARN L197 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-12-23 11:14:33,248 WARN L197 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-12-23 11:14:33,585 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2020-12-23 11:14:34,093 WARN L197 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2020-12-23 11:14:34,940 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2020-12-23 11:14:35,632 WARN L197 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2020-12-23 11:14:36,296 WARN L197 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2020-12-23 11:14:37,249 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2020-12-23 11:14:37,918 WARN L197 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2020-12-23 11:14:38,707 WARN L197 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2020-12-23 11:14:39,436 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2020-12-23 11:14:40,447 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 43