/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 10:38:22,183 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 10:38:22,186 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 10:38:22,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 10:38:22,224 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 10:38:22,225 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 10:38:22,227 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 10:38:22,229 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 10:38:22,232 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 10:38:22,233 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 10:38:22,234 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 10:38:22,236 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 10:38:22,236 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 10:38:22,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 10:38:22,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 10:38:22,240 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 10:38:22,242 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 10:38:22,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 10:38:22,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 10:38:22,247 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 10:38:22,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 10:38:22,251 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 10:38:22,252 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 10:38:22,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 10:38:22,268 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 10:38:22,269 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 10:38:22,269 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 10:38:22,270 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 10:38:22,271 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 10:38:22,272 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 10:38:22,273 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 10:38:22,273 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 10:38:22,274 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 10:38:22,276 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 10:38:22,277 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 10:38:22,277 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 10:38:22,278 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 10:38:22,279 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 10:38:22,279 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 10:38:22,280 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 10:38:22,281 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 10:38:22,283 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 10:38:22,319 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 10:38:22,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 10:38:22,322 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 10:38:22,323 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 10:38:22,323 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 10:38:22,323 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 10:38:22,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 10:38:22,326 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 10:38:22,326 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 10:38:22,326 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 10:38:22,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 10:38:22,327 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 10:38:22,327 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 10:38:22,327 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 10:38:22,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 10:38:22,328 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 10:38:22,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 10:38:22,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 10:38:22,329 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 10:38:22,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 10:38:22,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 10:38:22,330 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 10:38:22,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 10:38:22,331 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 10:38:22,331 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 10:38:22,331 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 10:38:22,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 10:38:22,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 10:38:22,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 10:38:22,860 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 10:38:22,861 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 10:38:22,862 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2020-12-23 10:38:22,961 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/47ba0d842/17a067e77bf84399bc6e1238a00f362b/FLAG9839a7c5a [2020-12-23 10:38:23,730 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 10:38:23,731 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2020-12-23 10:38:23,753 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/47ba0d842/17a067e77bf84399bc6e1238a00f362b/FLAG9839a7c5a [2020-12-23 10:38:23,984 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/47ba0d842/17a067e77bf84399bc6e1238a00f362b [2020-12-23 10:38:23,987 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 10:38:23,989 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 10:38:23,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 10:38:23,991 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 10:38:23,996 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 10:38:23,996 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 10:38:23" (1/1) ... [2020-12-23 10:38:23,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@765cd271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:38:23, skipping insertion in model container [2020-12-23 10:38:23,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 10:38:23" (1/1) ... [2020-12-23 10:38:24,009 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 10:38:24,051 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_6343~0,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[~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[~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[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_6421~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~0,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_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[~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[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_6484~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_2~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~1,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~p3_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[~__tmp_6512_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~1,] 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[~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[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~__return_6554~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_6555_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_3~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~2,] [2020-12-23 10:38:24,304 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[7067,7080] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~3,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~3,] left hand side expression in assignment: lhs: VariableLHS[~p3_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[~__tmp_6512_0~0,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[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_6568~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~2,] 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_0~2,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_6743~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_6555_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~2,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~2,] [2020-12-23 10:38:24,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 10:38:24,434 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_6343~0,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[~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[~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[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_6421~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~0,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_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[~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[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_6484~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_2~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~1,] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~2,] left hand side expression in assignment: lhs: VariableLHS[~p3_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[~__tmp_6512_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~1,] 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[~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[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~__return_6554~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_6555_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_3~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~2,] [2020-12-23 10:38:24,510 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[7067,7080] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~3,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~3,] left hand side expression in assignment: lhs: VariableLHS[~p3_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[~__tmp_6512_0~0,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[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_6568~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~2,] 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_0~2,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_6743~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_6555_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~2,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_1~2,] [2020-12-23 10:38:24,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 10:38:24,631 INFO L208 MainTranslator]: Completed translation [2020-12-23 10:38:24,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:38:24 WrapperNode [2020-12-23 10:38:24,632 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 10:38:24,633 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 10:38:24,634 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 10:38:24,634 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 10:38:24,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:38:24" (1/1) ... [2020-12-23 10:38:24,656 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:38:24" (1/1) ... [2020-12-23 10:38:24,710 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 10:38:24,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 10:38:24,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 10:38:24,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 10:38:24,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:38:24" (1/1) ... [2020-12-23 10:38:24,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:38:24" (1/1) ... [2020-12-23 10:38:24,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:38:24" (1/1) ... [2020-12-23 10:38:24,731 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:38:24" (1/1) ... [2020-12-23 10:38:24,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:38:24" (1/1) ... [2020-12-23 10:38:24,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:38:24" (1/1) ... [2020-12-23 10:38:24,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:38:24" (1/1) ... [2020-12-23 10:38:24,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 10:38:24,762 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 10:38:24,762 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 10:38:24,762 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 10:38:24,764 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:38:24" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 10:38:24,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 10:38:24,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 10:38:24,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 10:38:24,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 10:38:25,917 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 10:38:25,917 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-23 10:38:25,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 10:38:25 BoogieIcfgContainer [2020-12-23 10:38:25,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 10:38:25,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 10:38:25,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 10:38:25,925 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 10:38:25,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 10:38:23" (1/3) ... [2020-12-23 10:38:25,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28939f06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 10:38:25, skipping insertion in model container [2020-12-23 10:38:25,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:38:24" (2/3) ... [2020-12-23 10:38:25,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28939f06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 10:38:25, skipping insertion in model container [2020-12-23 10:38:25,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 10:38:25" (3/3) ... [2020-12-23 10:38:25,929 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2020-12-23 10:38:25,935 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 10:38:25,941 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 10:38:25,961 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 10:38:25,991 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 10:38:25,991 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 10:38:25,991 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 10:38:25,992 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 10:38:25,992 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 10:38:25,992 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 10:38:25,992 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 10:38:25,992 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 10:38:26,013 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states. [2020-12-23 10:38:26,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-23 10:38:26,022 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:38:26,023 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] [2020-12-23 10:38:26,023 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:38:26,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:38:26,030 INFO L82 PathProgramCache]: Analyzing trace with hash 985312972, now seen corresponding path program 1 times [2020-12-23 10:38:26,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:38:26,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814810028] [2020-12-23 10:38:26,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:38:26,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:38:26,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:38:26,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814810028] [2020-12-23 10:38:26,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:38:26,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:38:26,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029291703] [2020-12-23 10:38:26,385 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:38:26,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:38:26,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:38:26,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:38:26,404 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 3 states. [2020-12-23 10:38:26,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:38:26,512 INFO L93 Difference]: Finished difference Result 310 states and 504 transitions. [2020-12-23 10:38:26,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:38:26,514 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2020-12-23 10:38:26,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:38:26,530 INFO L225 Difference]: With dead ends: 310 [2020-12-23 10:38:26,530 INFO L226 Difference]: Without dead ends: 237 [2020-12-23 10:38:26,534 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:38:26,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-12-23 10:38:26,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 235. [2020-12-23 10:38:26,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-12-23 10:38:26,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 349 transitions. [2020-12-23 10:38:26,611 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 349 transitions. Word has length 50 [2020-12-23 10:38:26,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:38:26,612 INFO L481 AbstractCegarLoop]: Abstraction has 235 states and 349 transitions. [2020-12-23 10:38:26,613 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:38:26,613 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 349 transitions. [2020-12-23 10:38:26,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-23 10:38:26,615 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:38:26,616 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:38:26,616 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 10:38:26,616 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:38:26,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:38:26,618 INFO L82 PathProgramCache]: Analyzing trace with hash -722006169, now seen corresponding path program 1 times [2020-12-23 10:38:26,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:38:26,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334006620] [2020-12-23 10:38:26,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:38:26,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:38:26,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:38:26,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334006620] [2020-12-23 10:38:26,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:38:26,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:38:26,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419310238] [2020-12-23 10:38:26,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:38:26,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:38:26,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:38:26,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:38:26,838 INFO L87 Difference]: Start difference. First operand 235 states and 349 transitions. Second operand 3 states. [2020-12-23 10:38:27,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:38:27,009 INFO L93 Difference]: Finished difference Result 574 states and 871 transitions. [2020-12-23 10:38:27,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:38:27,012 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-12-23 10:38:27,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:38:27,021 INFO L225 Difference]: With dead ends: 574 [2020-12-23 10:38:27,021 INFO L226 Difference]: Without dead ends: 397 [2020-12-23 10:38:27,025 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:38:27,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2020-12-23 10:38:27,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 395. [2020-12-23 10:38:27,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2020-12-23 10:38:27,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 586 transitions. [2020-12-23 10:38:27,101 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 586 transitions. Word has length 53 [2020-12-23 10:38:27,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:38:27,104 INFO L481 AbstractCegarLoop]: Abstraction has 395 states and 586 transitions. [2020-12-23 10:38:27,105 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:38:27,105 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 586 transitions. [2020-12-23 10:38:27,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-23 10:38:27,110 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:38:27,111 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] [2020-12-23 10:38:27,111 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 10:38:27,111 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:38:27,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:38:27,112 INFO L82 PathProgramCache]: Analyzing trace with hash -695460410, now seen corresponding path program 1 times [2020-12-23 10:38:27,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:38:27,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805082319] [2020-12-23 10:38:27,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:38:27,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:38:27,215 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 10:38:27,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805082319] [2020-12-23 10:38:27,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:38:27,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:38:27,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254755295] [2020-12-23 10:38:27,217 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:38:27,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:38:27,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:38:27,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:38:27,218 INFO L87 Difference]: Start difference. First operand 395 states and 586 transitions. Second operand 3 states. [2020-12-23 10:38:27,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:38:27,297 INFO L93 Difference]: Finished difference Result 979 states and 1471 transitions. [2020-12-23 10:38:27,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:38:27,297 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-12-23 10:38:27,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:38:27,303 INFO L225 Difference]: With dead ends: 979 [2020-12-23 10:38:27,304 INFO L226 Difference]: Without dead ends: 684 [2020-12-23 10:38:27,308 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:38:27,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2020-12-23 10:38:27,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 682. [2020-12-23 10:38:27,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 682 states. [2020-12-23 10:38:27,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 1004 transitions. [2020-12-23 10:38:27,360 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 1004 transitions. Word has length 53 [2020-12-23 10:38:27,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:38:27,361 INFO L481 AbstractCegarLoop]: Abstraction has 682 states and 1004 transitions. [2020-12-23 10:38:27,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:38:27,361 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 1004 transitions. [2020-12-23 10:38:27,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-23 10:38:27,364 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:38:27,364 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] [2020-12-23 10:38:27,365 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 10:38:27,365 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:38:27,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:38:27,366 INFO L82 PathProgramCache]: Analyzing trace with hash -272648633, now seen corresponding path program 1 times [2020-12-23 10:38:27,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:38:27,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900070549] [2020-12-23 10:38:27,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:38:27,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:38:27,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:38:27,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900070549] [2020-12-23 10:38:27,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:38:27,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:38:27,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625172737] [2020-12-23 10:38:27,454 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:38:27,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:38:27,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:38:27,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:38:27,455 INFO L87 Difference]: Start difference. First operand 682 states and 1004 transitions. Second operand 3 states. [2020-12-23 10:38:27,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:38:27,535 INFO L93 Difference]: Finished difference Result 1668 states and 2468 transitions. [2020-12-23 10:38:27,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:38:27,536 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-12-23 10:38:27,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:38:27,543 INFO L225 Difference]: With dead ends: 1668 [2020-12-23 10:38:27,543 INFO L226 Difference]: Without dead ends: 1170 [2020-12-23 10:38:27,545 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:38:27,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2020-12-23 10:38:27,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 1168. [2020-12-23 10:38:27,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1168 states. [2020-12-23 10:38:27,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1168 states to 1168 states and 1691 transitions. [2020-12-23 10:38:27,604 INFO L78 Accepts]: Start accepts. Automaton has 1168 states and 1691 transitions. Word has length 53 [2020-12-23 10:38:27,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:38:27,604 INFO L481 AbstractCegarLoop]: Abstraction has 1168 states and 1691 transitions. [2020-12-23 10:38:27,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:38:27,605 INFO L276 IsEmpty]: Start isEmpty. Operand 1168 states and 1691 transitions. [2020-12-23 10:38:27,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-23 10:38:27,607 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:38:27,608 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] [2020-12-23 10:38:27,608 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 10:38:27,608 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:38:27,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:38:27,609 INFO L82 PathProgramCache]: Analyzing trace with hash 1724922721, now seen corresponding path program 1 times [2020-12-23 10:38:27,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:38:27,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441945554] [2020-12-23 10:38:27,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:38:27,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:38:27,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:38:27,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441945554] [2020-12-23 10:38:27,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:38:27,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 10:38:27,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9180094] [2020-12-23 10:38:27,758 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 10:38:27,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:38:27,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 10:38:27,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:38:27,760 INFO L87 Difference]: Start difference. First operand 1168 states and 1691 transitions. Second operand 5 states. [2020-12-23 10:38:28,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:38:28,174 INFO L93 Difference]: Finished difference Result 3282 states and 4783 transitions. [2020-12-23 10:38:28,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:38:28,175 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2020-12-23 10:38:28,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:38:28,187 INFO L225 Difference]: With dead ends: 3282 [2020-12-23 10:38:28,187 INFO L226 Difference]: Without dead ends: 2142 [2020-12-23 10:38:28,189 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 10:38:28,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2142 states. [2020-12-23 10:38:28,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2142 to 2128. [2020-12-23 10:38:28,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2128 states. [2020-12-23 10:38:28,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 3085 transitions. [2020-12-23 10:38:28,366 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 3085 transitions. Word has length 54 [2020-12-23 10:38:28,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:38:28,369 INFO L481 AbstractCegarLoop]: Abstraction has 2128 states and 3085 transitions. [2020-12-23 10:38:28,369 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 10:38:28,369 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 3085 transitions. [2020-12-23 10:38:28,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-23 10:38:28,372 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:38:28,372 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] [2020-12-23 10:38:28,373 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 10:38:28,373 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:38:28,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:38:28,374 INFO L82 PathProgramCache]: Analyzing trace with hash 1943574737, now seen corresponding path program 1 times [2020-12-23 10:38:28,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:38:28,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64938540] [2020-12-23 10:38:28,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:38:28,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:38:28,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:38:28,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64938540] [2020-12-23 10:38:28,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:38:28,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:38:28,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365485903] [2020-12-23 10:38:28,508 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 10:38:28,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:38:28,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 10:38:28,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:38:28,510 INFO L87 Difference]: Start difference. First operand 2128 states and 3085 transitions. Second operand 5 states. [2020-12-23 10:38:28,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:38:28,948 INFO L93 Difference]: Finished difference Result 6916 states and 10153 transitions. [2020-12-23 10:38:28,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:38:28,949 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2020-12-23 10:38:28,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:38:28,977 INFO L225 Difference]: With dead ends: 6916 [2020-12-23 10:38:28,977 INFO L226 Difference]: Without dead ends: 5498 [2020-12-23 10:38:28,983 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-23 10:38:28,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5498 states. [2020-12-23 10:38:29,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5498 to 2546. [2020-12-23 10:38:29,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2546 states. [2020-12-23 10:38:29,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2546 states to 2546 states and 3706 transitions. [2020-12-23 10:38:29,260 INFO L78 Accepts]: Start accepts. Automaton has 2546 states and 3706 transitions. Word has length 54 [2020-12-23 10:38:29,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:38:29,260 INFO L481 AbstractCegarLoop]: Abstraction has 2546 states and 3706 transitions. [2020-12-23 10:38:29,260 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 10:38:29,260 INFO L276 IsEmpty]: Start isEmpty. Operand 2546 states and 3706 transitions. [2020-12-23 10:38:29,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-23 10:38:29,262 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:38:29,262 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] [2020-12-23 10:38:29,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 10:38:29,263 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:38:29,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:38:29,264 INFO L82 PathProgramCache]: Analyzing trace with hash -867408349, now seen corresponding path program 1 times [2020-12-23 10:38:29,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:38:29,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795497571] [2020-12-23 10:38:29,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:38:29,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:38:29,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:38:29,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795497571] [2020-12-23 10:38:29,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:38:29,398 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:38:29,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137034909] [2020-12-23 10:38:29,399 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 10:38:29,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:38:29,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 10:38:29,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:38:29,400 INFO L87 Difference]: Start difference. First operand 2546 states and 3706 transitions. Second operand 6 states. [2020-12-23 10:38:30,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:38:30,073 INFO L93 Difference]: Finished difference Result 7911 states and 11525 transitions. [2020-12-23 10:38:30,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:38:30,074 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2020-12-23 10:38:30,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:38:30,102 INFO L225 Difference]: With dead ends: 7911 [2020-12-23 10:38:30,103 INFO L226 Difference]: Without dead ends: 5447 [2020-12-23 10:38:30,110 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-23 10:38:30,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5447 states. [2020-12-23 10:38:30,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5447 to 5403. [2020-12-23 10:38:30,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5403 states. [2020-12-23 10:38:30,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5403 states to 5403 states and 7837 transitions. [2020-12-23 10:38:30,651 INFO L78 Accepts]: Start accepts. Automaton has 5403 states and 7837 transitions. Word has length 54 [2020-12-23 10:38:30,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:38:30,652 INFO L481 AbstractCegarLoop]: Abstraction has 5403 states and 7837 transitions. [2020-12-23 10:38:30,652 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 10:38:30,652 INFO L276 IsEmpty]: Start isEmpty. Operand 5403 states and 7837 transitions. [2020-12-23 10:38:30,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-23 10:38:30,655 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:38:30,656 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:38:30,656 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 10:38:30,656 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:38:30,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:38:30,657 INFO L82 PathProgramCache]: Analyzing trace with hash 478354003, now seen corresponding path program 1 times [2020-12-23 10:38:30,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:38:30,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677457600] [2020-12-23 10:38:30,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:38:30,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:38:30,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:38:30,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677457600] [2020-12-23 10:38:30,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:38:30,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:38:30,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260657941] [2020-12-23 10:38:30,752 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 10:38:30,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:38:30,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 10:38:30,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:38:30,754 INFO L87 Difference]: Start difference. First operand 5403 states and 7837 transitions. Second operand 5 states. [2020-12-23 10:38:31,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:38:31,697 INFO L93 Difference]: Finished difference Result 16955 states and 24725 transitions. [2020-12-23 10:38:31,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:38:31,697 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 55 [2020-12-23 10:38:31,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:38:31,763 INFO L225 Difference]: With dead ends: 16955 [2020-12-23 10:38:31,763 INFO L226 Difference]: Without dead ends: 13549 [2020-12-23 10:38:31,773 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-23 10:38:31,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13549 states. [2020-12-23 10:38:32,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13549 to 6987. [2020-12-23 10:38:32,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6987 states. [2020-12-23 10:38:32,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6987 states to 6987 states and 10204 transitions. [2020-12-23 10:38:32,454 INFO L78 Accepts]: Start accepts. Automaton has 6987 states and 10204 transitions. Word has length 55 [2020-12-23 10:38:32,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:38:32,454 INFO L481 AbstractCegarLoop]: Abstraction has 6987 states and 10204 transitions. [2020-12-23 10:38:32,455 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 10:38:32,455 INFO L276 IsEmpty]: Start isEmpty. Operand 6987 states and 10204 transitions. [2020-12-23 10:38:32,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-23 10:38:32,458 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:38:32,458 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] [2020-12-23 10:38:32,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 10:38:32,459 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:38:32,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:38:32,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1521002867, now seen corresponding path program 1 times [2020-12-23 10:38:32,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:38:32,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418220128] [2020-12-23 10:38:32,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:38:32,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:38:32,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:38:32,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418220128] [2020-12-23 10:38:32,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:38:32,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:38:32,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686491967] [2020-12-23 10:38:32,539 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 10:38:32,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:38:32,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 10:38:32,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:38:32,540 INFO L87 Difference]: Start difference. First operand 6987 states and 10204 transitions. Second operand 5 states. [2020-12-23 10:38:33,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:38:33,644 INFO L93 Difference]: Finished difference Result 17347 states and 25331 transitions. [2020-12-23 10:38:33,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:38:33,644 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 55 [2020-12-23 10:38:33,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:38:33,709 INFO L225 Difference]: With dead ends: 17347 [2020-12-23 10:38:33,710 INFO L226 Difference]: Without dead ends: 13941 [2020-12-23 10:38:33,722 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 10:38:33,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13941 states. [2020-12-23 10:38:34,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13941 to 8304. [2020-12-23 10:38:34,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8304 states. [2020-12-23 10:38:34,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8304 states to 8304 states and 12138 transitions. [2020-12-23 10:38:34,465 INFO L78 Accepts]: Start accepts. Automaton has 8304 states and 12138 transitions. Word has length 55 [2020-12-23 10:38:34,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:38:34,465 INFO L481 AbstractCegarLoop]: Abstraction has 8304 states and 12138 transitions. [2020-12-23 10:38:34,466 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 10:38:34,466 INFO L276 IsEmpty]: Start isEmpty. Operand 8304 states and 12138 transitions. [2020-12-23 10:38:34,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-12-23 10:38:34,469 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:38:34,469 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] [2020-12-23 10:38:34,469 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 10:38:34,470 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:38:34,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:38:34,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1320055476, now seen corresponding path program 1 times [2020-12-23 10:38:34,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:38:34,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894828740] [2020-12-23 10:38:34,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:38:34,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:38:34,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:38:34,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894828740] [2020-12-23 10:38:34,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:38:34,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 10:38:34,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071794180] [2020-12-23 10:38:34,554 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 10:38:34,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:38:34,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 10:38:34,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 10:38:34,555 INFO L87 Difference]: Start difference. First operand 8304 states and 12138 transitions. Second operand 6 states. [2020-12-23 10:38:36,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:38:36,182 INFO L93 Difference]: Finished difference Result 26504 states and 38690 transitions. [2020-12-23 10:38:36,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 10:38:36,183 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 59 [2020-12-23 10:38:36,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:38:36,228 INFO L225 Difference]: With dead ends: 26504 [2020-12-23 10:38:36,228 INFO L226 Difference]: Without dead ends: 18246 [2020-12-23 10:38:36,244 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-23 10:38:36,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18246 states. [2020-12-23 10:38:37,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18246 to 18118. [2020-12-23 10:38:37,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18118 states. [2020-12-23 10:38:37,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18118 states to 18118 states and 26324 transitions. [2020-12-23 10:38:37,354 INFO L78 Accepts]: Start accepts. Automaton has 18118 states and 26324 transitions. Word has length 59 [2020-12-23 10:38:37,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:38:37,354 INFO L481 AbstractCegarLoop]: Abstraction has 18118 states and 26324 transitions. [2020-12-23 10:38:37,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 10:38:37,355 INFO L276 IsEmpty]: Start isEmpty. Operand 18118 states and 26324 transitions. [2020-12-23 10:38:37,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-12-23 10:38:37,361 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:38:37,361 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] [2020-12-23 10:38:37,361 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 10:38:37,361 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:38:37,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:38:37,362 INFO L82 PathProgramCache]: Analyzing trace with hash -97252013, now seen corresponding path program 1 times [2020-12-23 10:38:37,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:38:37,362 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976378472] [2020-12-23 10:38:37,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:38:37,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:38:37,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:38:37,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976378472] [2020-12-23 10:38:37,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:38:37,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 10:38:37,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147555381] [2020-12-23 10:38:37,553 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 10:38:37,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:38:37,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 10:38:37,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-23 10:38:37,556 INFO L87 Difference]: Start difference. First operand 18118 states and 26324 transitions. Second operand 7 states. [2020-12-23 10:38:42,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:38:42,195 INFO L93 Difference]: Finished difference Result 68546 states and 98631 transitions. [2020-12-23 10:38:42,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-23 10:38:42,196 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 60 [2020-12-23 10:38:42,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:38:42,362 INFO L225 Difference]: With dead ends: 68546 [2020-12-23 10:38:42,362 INFO L226 Difference]: Without dead ends: 60518 [2020-12-23 10:38:42,395 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2020-12-23 10:38:42,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60518 states. [2020-12-23 10:38:44,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60518 to 18138. [2020-12-23 10:38:44,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18138 states. [2020-12-23 10:38:44,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18138 states to 18138 states and 26348 transitions. [2020-12-23 10:38:44,517 INFO L78 Accepts]: Start accepts. Automaton has 18138 states and 26348 transitions. Word has length 60 [2020-12-23 10:38:44,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:38:44,517 INFO L481 AbstractCegarLoop]: Abstraction has 18138 states and 26348 transitions. [2020-12-23 10:38:44,517 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 10:38:44,517 INFO L276 IsEmpty]: Start isEmpty. Operand 18138 states and 26348 transitions. [2020-12-23 10:38:44,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-12-23 10:38:44,523 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:38:44,523 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] [2020-12-23 10:38:44,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-23 10:38:44,523 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:38:44,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:38:44,524 INFO L82 PathProgramCache]: Analyzing trace with hash -172891724, now seen corresponding path program 1 times [2020-12-23 10:38:44,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:38:44,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912845108] [2020-12-23 10:38:44,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:38:44,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:38:44,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:38:44,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912845108] [2020-12-23 10:38:44,623 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:38:44,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 10:38:44,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960884548] [2020-12-23 10:38:44,624 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 10:38:44,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:38:44,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 10:38:44,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-23 10:38:44,625 INFO L87 Difference]: Start difference. First operand 18138 states and 26348 transitions. Second operand 7 states. [2020-12-23 10:38:51,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:38:51,276 INFO L93 Difference]: Finished difference Result 80625 states and 116136 transitions. [2020-12-23 10:38:51,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-23 10:38:51,277 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 60 [2020-12-23 10:38:51,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:38:51,542 INFO L225 Difference]: With dead ends: 80625 [2020-12-23 10:38:51,542 INFO L226 Difference]: Without dead ends: 72677 [2020-12-23 10:38:51,573 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2020-12-23 10:38:51,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72677 states. [2020-12-23 10:38:53,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72677 to 18248. [2020-12-23 10:38:53,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18248 states. [2020-12-23 10:38:53,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18248 states to 18248 states and 26490 transitions. [2020-12-23 10:38:53,613 INFO L78 Accepts]: Start accepts. Automaton has 18248 states and 26490 transitions. Word has length 60 [2020-12-23 10:38:53,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:38:53,614 INFO L481 AbstractCegarLoop]: Abstraction has 18248 states and 26490 transitions. [2020-12-23 10:38:53,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 10:38:53,614 INFO L276 IsEmpty]: Start isEmpty. Operand 18248 states and 26490 transitions. [2020-12-23 10:38:53,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-12-23 10:38:53,620 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:38:53,620 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] [2020-12-23 10:38:53,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-23 10:38:53,620 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:38:53,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:38:53,621 INFO L82 PathProgramCache]: Analyzing trace with hash -2054897963, now seen corresponding path program 1 times [2020-12-23 10:38:53,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:38:53,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242170371] [2020-12-23 10:38:53,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:38:53,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:38:53,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:38:53,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242170371] [2020-12-23 10:38:53,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:38:53,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 10:38:53,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343695398] [2020-12-23 10:38:53,741 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 10:38:53,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:38:53,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 10:38:53,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-23 10:38:53,742 INFO L87 Difference]: Start difference. First operand 18248 states and 26490 transitions. Second operand 7 states. [2020-12-23 10:39:03,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:39:03,791 INFO L93 Difference]: Finished difference Result 102986 states and 148176 transitions. [2020-12-23 10:39:03,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-23 10:39:03,792 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 60 [2020-12-23 10:39:03,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:39:03,969 INFO L225 Difference]: With dead ends: 102986 [2020-12-23 10:39:03,970 INFO L226 Difference]: Without dead ends: 96536 [2020-12-23 10:39:04,010 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2020-12-23 10:39:04,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96536 states. [2020-12-23 10:39:06,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96536 to 18304. [2020-12-23 10:39:06,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18304 states. [2020-12-23 10:39:06,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18304 states to 18304 states and 26559 transitions. [2020-12-23 10:39:06,859 INFO L78 Accepts]: Start accepts. Automaton has 18304 states and 26559 transitions. Word has length 60 [2020-12-23 10:39:06,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:39:06,859 INFO L481 AbstractCegarLoop]: Abstraction has 18304 states and 26559 transitions. [2020-12-23 10:39:06,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 10:39:06,859 INFO L276 IsEmpty]: Start isEmpty. Operand 18304 states and 26559 transitions. [2020-12-23 10:39:06,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-12-23 10:39:06,865 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:39:06,865 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] [2020-12-23 10:39:06,865 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-23 10:39:06,866 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:39:06,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:39:06,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1036507303, now seen corresponding path program 1 times [2020-12-23 10:39:06,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:39:06,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356257420] [2020-12-23 10:39:06,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:39:06,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:39:07,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:39:07,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356257420] [2020-12-23 10:39:07,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:39:07,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 10:39:07,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052519248] [2020-12-23 10:39:07,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 10:39:07,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:39:07,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 10:39:07,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-12-23 10:39:07,124 INFO L87 Difference]: Start difference. First operand 18304 states and 26559 transitions. Second operand 10 states. [2020-12-23 10:39:14,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:39:14,645 INFO L93 Difference]: Finished difference Result 62748 states and 90738 transitions. [2020-12-23 10:39:14,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-12-23 10:39:14,646 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 62 [2020-12-23 10:39:14,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:39:14,734 INFO L225 Difference]: With dead ends: 62748 [2020-12-23 10:39:14,735 INFO L226 Difference]: Without dead ends: 46490 [2020-12-23 10:39:14,768 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=250, Invalid=742, Unknown=0, NotChecked=0, Total=992 [2020-12-23 10:39:14,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46490 states. [2020-12-23 10:39:17,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46490 to 18075. [2020-12-23 10:39:17,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18075 states. [2020-12-23 10:39:17,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18075 states to 18075 states and 26213 transitions. [2020-12-23 10:39:17,406 INFO L78 Accepts]: Start accepts. Automaton has 18075 states and 26213 transitions. Word has length 62 [2020-12-23 10:39:17,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:39:17,406 INFO L481 AbstractCegarLoop]: Abstraction has 18075 states and 26213 transitions. [2020-12-23 10:39:17,407 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 10:39:17,407 INFO L276 IsEmpty]: Start isEmpty. Operand 18075 states and 26213 transitions. [2020-12-23 10:39:17,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-12-23 10:39:17,412 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:39:17,412 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] [2020-12-23 10:39:17,412 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-23 10:39:17,412 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:39:17,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:39:17,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1459319080, now seen corresponding path program 1 times [2020-12-23 10:39:17,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:39:17,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380172686] [2020-12-23 10:39:17,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:39:17,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:39:17,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:39:17,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380172686] [2020-12-23 10:39:17,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:39:17,596 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 10:39:17,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382737010] [2020-12-23 10:39:17,596 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 10:39:17,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:39:17,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 10:39:17,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-12-23 10:39:17,598 INFO L87 Difference]: Start difference. First operand 18075 states and 26213 transitions. Second operand 10 states. [2020-12-23 10:39:30,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:39:30,097 INFO L93 Difference]: Finished difference Result 86666 states and 124354 transitions. [2020-12-23 10:39:30,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-12-23 10:39:30,098 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 62 [2020-12-23 10:39:30,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:39:30,191 INFO L225 Difference]: With dead ends: 86666 [2020-12-23 10:39:30,191 INFO L226 Difference]: Without dead ends: 70311 [2020-12-23 10:39:30,219 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=272, Invalid=850, Unknown=0, NotChecked=0, Total=1122 [2020-12-23 10:39:30,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70311 states. [2020-12-23 10:39:33,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70311 to 17784. [2020-12-23 10:39:33,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17784 states. [2020-12-23 10:39:33,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17784 states to 17784 states and 25787 transitions. [2020-12-23 10:39:33,411 INFO L78 Accepts]: Start accepts. Automaton has 17784 states and 25787 transitions. Word has length 62 [2020-12-23 10:39:33,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:39:33,412 INFO L481 AbstractCegarLoop]: Abstraction has 17784 states and 25787 transitions. [2020-12-23 10:39:33,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 10:39:33,412 INFO L276 IsEmpty]: Start isEmpty. Operand 17784 states and 25787 transitions. [2020-12-23 10:39:33,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-12-23 10:39:33,416 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:39:33,416 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] [2020-12-23 10:39:33,416 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-23 10:39:33,416 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:39:33,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:39:33,417 INFO L82 PathProgramCache]: Analyzing trace with hash 2010042985, now seen corresponding path program 1 times [2020-12-23 10:39:33,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:39:33,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683862003] [2020-12-23 10:39:33,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:39:33,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:39:33,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:39:33,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683862003] [2020-12-23 10:39:33,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:39:33,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-23 10:39:33,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291001538] [2020-12-23 10:39:33,626 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-23 10:39:33,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:39:33,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-23 10:39:33,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-12-23 10:39:33,627 INFO L87 Difference]: Start difference. First operand 17784 states and 25787 transitions. Second operand 10 states. [2020-12-23 10:39:42,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:39:42,718 INFO L93 Difference]: Finished difference Result 62296 states and 90004 transitions. [2020-12-23 10:39:42,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-12-23 10:39:42,719 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 62 [2020-12-23 10:39:42,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:39:42,772 INFO L225 Difference]: With dead ends: 62296 [2020-12-23 10:39:42,772 INFO L226 Difference]: Without dead ends: 45969 [2020-12-23 10:39:42,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=234, Invalid=636, Unknown=0, NotChecked=0, Total=870 [2020-12-23 10:39:42,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45969 states. [2020-12-23 10:39:45,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45969 to 17592. [2020-12-23 10:39:45,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17592 states. [2020-12-23 10:39:45,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17592 states to 17592 states and 25528 transitions. [2020-12-23 10:39:45,881 INFO L78 Accepts]: Start accepts. Automaton has 17592 states and 25528 transitions. Word has length 62 [2020-12-23 10:39:45,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:39:45,881 INFO L481 AbstractCegarLoop]: Abstraction has 17592 states and 25528 transitions. [2020-12-23 10:39:45,881 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-23 10:39:45,881 INFO L276 IsEmpty]: Start isEmpty. Operand 17592 states and 25528 transitions. [2020-12-23 10:39:45,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-23 10:39:45,884 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:39:45,885 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] [2020-12-23 10:39:45,885 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-23 10:39:45,885 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:39:45,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:39:45,885 INFO L82 PathProgramCache]: Analyzing trace with hash -1983119998, now seen corresponding path program 1 times [2020-12-23 10:39:45,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:39:45,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094556303] [2020-12-23 10:39:45,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:39:45,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:39:45,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:39:45,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094556303] [2020-12-23 10:39:45,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:39:45,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:39:45,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44779694] [2020-12-23 10:39:45,937 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:39:45,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:39:45,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:39:45,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:39:45,938 INFO L87 Difference]: Start difference. First operand 17592 states and 25528 transitions. Second operand 3 states. [2020-12-23 10:39:49,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:39:49,130 INFO L93 Difference]: Finished difference Result 24036 states and 34728 transitions. [2020-12-23 10:39:49,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:39:49,131 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2020-12-23 10:39:49,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:39:49,149 INFO L225 Difference]: With dead ends: 24036 [2020-12-23 10:39:49,149 INFO L226 Difference]: Without dead ends: 17461 [2020-12-23 10:39:49,156 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:39:49,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17461 states. [2020-12-23 10:39:51,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17461 to 17459. [2020-12-23 10:39:51,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17459 states. [2020-12-23 10:39:52,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17459 states to 17459 states and 24816 transitions. [2020-12-23 10:39:52,022 INFO L78 Accepts]: Start accepts. Automaton has 17459 states and 24816 transitions. Word has length 63 [2020-12-23 10:39:52,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:39:52,023 INFO L481 AbstractCegarLoop]: Abstraction has 17459 states and 24816 transitions. [2020-12-23 10:39:52,023 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:39:52,023 INFO L276 IsEmpty]: Start isEmpty. Operand 17459 states and 24816 transitions. [2020-12-23 10:39:52,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-23 10:39:52,025 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:39:52,026 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:39:52,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-23 10:39:52,026 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:39:52,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:39:52,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1051173576, now seen corresponding path program 1 times [2020-12-23 10:39:52,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:39:52,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043178702] [2020-12-23 10:39:52,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:39:52,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:39:52,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:39:52,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043178702] [2020-12-23 10:39:52,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:39:52,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:39:52,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390583690] [2020-12-23 10:39:52,106 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:39:52,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:39:52,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:39:52,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:39:52,107 INFO L87 Difference]: Start difference. First operand 17459 states and 24816 transitions. Second operand 3 states. [2020-12-23 10:39:54,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:39:54,922 INFO L93 Difference]: Finished difference Result 23654 states and 33549 transitions. [2020-12-23 10:39:54,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:39:54,923 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2020-12-23 10:39:54,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:39:54,941 INFO L225 Difference]: With dead ends: 23654 [2020-12-23 10:39:54,942 INFO L226 Difference]: Without dead ends: 15822 [2020-12-23 10:39:54,953 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:39:54,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15822 states. [2020-12-23 10:39:57,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15822 to 15820. [2020-12-23 10:39:57,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15820 states. [2020-12-23 10:39:57,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15820 states to 15820 states and 22114 transitions. [2020-12-23 10:39:57,603 INFO L78 Accepts]: Start accepts. Automaton has 15820 states and 22114 transitions. Word has length 63 [2020-12-23 10:39:57,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:39:57,603 INFO L481 AbstractCegarLoop]: Abstraction has 15820 states and 22114 transitions. [2020-12-23 10:39:57,603 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:39:57,603 INFO L276 IsEmpty]: Start isEmpty. Operand 15820 states and 22114 transitions. [2020-12-23 10:39:57,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-23 10:39:57,606 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:39:57,606 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] [2020-12-23 10:39:57,607 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-23 10:39:57,607 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:39:57,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:39:57,607 INFO L82 PathProgramCache]: Analyzing trace with hash -125701859, now seen corresponding path program 1 times [2020-12-23 10:39:57,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:39:57,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205077672] [2020-12-23 10:39:57,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:39:57,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:39:57,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:39:57,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205077672] [2020-12-23 10:39:57,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:39:57,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:39:57,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223468108] [2020-12-23 10:39:57,677 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:39:57,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:39:57,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:39:57,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:39:57,681 INFO L87 Difference]: Start difference. First operand 15820 states and 22114 transitions. Second operand 3 states. [2020-12-23 10:39:59,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:39:59,913 INFO L93 Difference]: Finished difference Result 20610 states and 28753 transitions. [2020-12-23 10:39:59,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:39:59,914 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2020-12-23 10:39:59,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:39:59,930 INFO L225 Difference]: With dead ends: 20610 [2020-12-23 10:39:59,930 INFO L226 Difference]: Without dead ends: 13406 [2020-12-23 10:39:59,940 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:39:59,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13406 states. [2020-12-23 10:40:02,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13406 to 13404. [2020-12-23 10:40:02,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13404 states. [2020-12-23 10:40:02,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13404 states to 13404 states and 18438 transitions. [2020-12-23 10:40:02,100 INFO L78 Accepts]: Start accepts. Automaton has 13404 states and 18438 transitions. Word has length 63 [2020-12-23 10:40:02,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:40:02,100 INFO L481 AbstractCegarLoop]: Abstraction has 13404 states and 18438 transitions. [2020-12-23 10:40:02,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:40:02,101 INFO L276 IsEmpty]: Start isEmpty. Operand 13404 states and 18438 transitions. [2020-12-23 10:40:02,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-23 10:40:02,108 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:40:02,108 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] [2020-12-23 10:40:02,108 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-23 10:40:02,109 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:40:02,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:40:02,109 INFO L82 PathProgramCache]: Analyzing trace with hash 666404545, now seen corresponding path program 1 times [2020-12-23 10:40:02,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:40:02,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802437374] [2020-12-23 10:40:02,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:40:02,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:40:02,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:40:02,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802437374] [2020-12-23 10:40:02,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:40:02,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:40:02,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484260603] [2020-12-23 10:40:02,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:40:02,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:40:02,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:40:02,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:40:02,186 INFO L87 Difference]: Start difference. First operand 13404 states and 18438 transitions. Second operand 3 states. [2020-12-23 10:40:05,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:40:05,392 INFO L93 Difference]: Finished difference Result 24782 states and 34230 transitions. [2020-12-23 10:40:05,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:40:05,393 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2020-12-23 10:40:05,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:40:05,413 INFO L225 Difference]: With dead ends: 24782 [2020-12-23 10:40:05,413 INFO L226 Difference]: Without dead ends: 19654 [2020-12-23 10:40:05,419 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:40:05,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19654 states. [2020-12-23 10:40:07,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19654 to 13299. [2020-12-23 10:40:07,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13299 states. [2020-12-23 10:40:07,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13299 states to 13299 states and 18268 transitions. [2020-12-23 10:40:07,776 INFO L78 Accepts]: Start accepts. Automaton has 13299 states and 18268 transitions. Word has length 64 [2020-12-23 10:40:07,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:40:07,776 INFO L481 AbstractCegarLoop]: Abstraction has 13299 states and 18268 transitions. [2020-12-23 10:40:07,776 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:40:07,776 INFO L276 IsEmpty]: Start isEmpty. Operand 13299 states and 18268 transitions. [2020-12-23 10:40:07,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-23 10:40:07,780 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:40:07,780 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] [2020-12-23 10:40:07,780 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-23 10:40:07,780 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:40:07,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:40:07,781 INFO L82 PathProgramCache]: Analyzing trace with hash 859970200, now seen corresponding path program 1 times [2020-12-23 10:40:07,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:40:07,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851086818] [2020-12-23 10:40:07,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:40:07,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:40:08,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:40:08,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851086818] [2020-12-23 10:40:08,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:40:08,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-12-23 10:40:08,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599063566] [2020-12-23 10:40:08,815 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-12-23 10:40:08,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:40:08,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-12-23 10:40:08,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2020-12-23 10:40:08,816 INFO L87 Difference]: Start difference. First operand 13299 states and 18268 transitions. Second operand 23 states. [2020-12-23 10:40:09,063 WARN L197 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2020-12-23 10:40:10,085 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-12-23 10:40:10,419 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2020-12-23 10:40:10,691 WARN L197 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2020-12-23 10:40:11,190 WARN L197 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2020-12-23 10:40:11,548 WARN L197 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 97 [2020-12-23 10:40:11,721 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-12-23 10:40:11,969 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-12-23 10:40:12,559 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-12-23 10:40:12,743 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-12-23 10:40:27,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:40:27,376 INFO L93 Difference]: Finished difference Result 47861 states and 66470 transitions. [2020-12-23 10:40:27,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-12-23 10:40:27,377 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 64 [2020-12-23 10:40:27,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:40:27,434 INFO L225 Difference]: With dead ends: 47861 [2020-12-23 10:40:27,434 INFO L226 Difference]: Without dead ends: 47117 [2020-12-23 10:40:27,447 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=469, Invalid=2287, Unknown=0, NotChecked=0, Total=2756 [2020-12-23 10:40:27,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47117 states. [2020-12-23 10:40:30,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47117 to 13299. [2020-12-23 10:40:30,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13299 states. [2020-12-23 10:40:30,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13299 states to 13299 states and 18267 transitions. [2020-12-23 10:40:30,416 INFO L78 Accepts]: Start accepts. Automaton has 13299 states and 18267 transitions. Word has length 64 [2020-12-23 10:40:30,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:40:30,416 INFO L481 AbstractCegarLoop]: Abstraction has 13299 states and 18267 transitions. [2020-12-23 10:40:30,416 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-12-23 10:40:30,416 INFO L276 IsEmpty]: Start isEmpty. Operand 13299 states and 18267 transitions. [2020-12-23 10:40:30,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-23 10:40:30,419 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:40:30,419 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] [2020-12-23 10:40:30,419 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-23 10:40:30,419 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:40:30,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:40:30,419 INFO L82 PathProgramCache]: Analyzing trace with hash 1948770272, now seen corresponding path program 1 times [2020-12-23 10:40:30,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:40:30,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481532358] [2020-12-23 10:40:30,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:40:30,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:40:31,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:40:31,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481532358] [2020-12-23 10:40:31,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:40:31,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-12-23 10:40:31,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022929429] [2020-12-23 10:40:31,490 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-12-23 10:40:31,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:40:31,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-12-23 10:40:31,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=454, Unknown=0, NotChecked=0, Total=506 [2020-12-23 10:40:31,492 INFO L87 Difference]: Start difference. First operand 13299 states and 18267 transitions. Second operand 23 states. [2020-12-23 10:40:31,846 WARN L197 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-12-23 10:40:32,860 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2020-12-23 10:40:33,070 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2020-12-23 10:40:33,531 WARN L197 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2020-12-23 10:40:33,884 WARN L197 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 81 [2020-12-23 10:40:34,517 WARN L197 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 90 [2020-12-23 10:40:34,966 WARN L197 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 98 [2020-12-23 10:40:35,192 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-12-23 10:40:35,506 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-12-23 10:40:35,951 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-12-23 10:40:36,258 WARN L197 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2020-12-23 10:40:36,612 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-12-23 10:40:36,963 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-12-23 10:40:37,369 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2020-12-23 10:40:37,655 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2020-12-23 10:40:41,247 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 32 [2020-12-23 10:40:54,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:40:54,697 INFO L93 Difference]: Finished difference Result 58201 states and 80917 transitions. [2020-12-23 10:40:54,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-12-23 10:40:54,698 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 64 [2020-12-23 10:40:54,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:40:54,775 INFO L225 Difference]: With dead ends: 58201 [2020-12-23 10:40:54,775 INFO L226 Difference]: Without dead ends: 57457 [2020-12-23 10:40:54,789 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=484, Invalid=2066, Unknown=0, NotChecked=0, Total=2550 [2020-12-23 10:40:54,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57457 states. [2020-12-23 10:40:58,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57457 to 13279. [2020-12-23 10:40:58,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13279 states. [2020-12-23 10:40:58,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13279 states to 13279 states and 18240 transitions. [2020-12-23 10:40:58,113 INFO L78 Accepts]: Start accepts. Automaton has 13279 states and 18240 transitions. Word has length 64 [2020-12-23 10:40:58,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:40:58,113 INFO L481 AbstractCegarLoop]: Abstraction has 13279 states and 18240 transitions. [2020-12-23 10:40:58,113 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-12-23 10:40:58,113 INFO L276 IsEmpty]: Start isEmpty. Operand 13279 states and 18240 transitions. [2020-12-23 10:40:58,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-23 10:40:58,116 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:40:58,116 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] [2020-12-23 10:40:58,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-23 10:40:58,116 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:40:58,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:40:58,117 INFO L82 PathProgramCache]: Analyzing trace with hash 682523932, now seen corresponding path program 1 times [2020-12-23 10:40:58,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:40:58,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816806351] [2020-12-23 10:40:58,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:40:58,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:40:59,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:40:59,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816806351] [2020-12-23 10:40:59,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:40:59,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-12-23 10:40:59,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658661935] [2020-12-23 10:40:59,126 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-12-23 10:40:59,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:40:59,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-12-23 10:40:59,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2020-12-23 10:40:59,127 INFO L87 Difference]: Start difference. First operand 13279 states and 18240 transitions. Second operand 23 states. [2020-12-23 10:40:59,435 WARN L197 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2020-12-23 10:41:00,715 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2020-12-23 10:41:00,959 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2020-12-23 10:41:01,438 WARN L197 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2020-12-23 10:41:01,769 WARN L197 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2020-12-23 10:41:01,938 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2020-12-23 10:41:02,205 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2020-12-23 10:41:02,581 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2020-12-23 10:41:02,843 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2020-12-23 10:41:03,146 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 46 [2020-12-23 10:41:19,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:41:19,441 INFO L93 Difference]: Finished difference Result 43627 states and 60596 transitions. [2020-12-23 10:41:19,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-12-23 10:41:19,442 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 64 [2020-12-23 10:41:19,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:41:19,488 INFO L225 Difference]: With dead ends: 43627 [2020-12-23 10:41:19,489 INFO L226 Difference]: Without dead ends: 42883 [2020-12-23 10:41:19,499 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=388, Invalid=1682, Unknown=0, NotChecked=0, Total=2070 [2020-12-23 10:41:19,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42883 states. [2020-12-23 10:41:22,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42883 to 13259. [2020-12-23 10:41:22,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13259 states. [2020-12-23 10:41:22,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13259 states to 13259 states and 18213 transitions. [2020-12-23 10:41:22,743 INFO L78 Accepts]: Start accepts. Automaton has 13259 states and 18213 transitions. Word has length 64 [2020-12-23 10:41:22,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:41:22,743 INFO L481 AbstractCegarLoop]: Abstraction has 13259 states and 18213 transitions. [2020-12-23 10:41:22,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-12-23 10:41:22,743 INFO L276 IsEmpty]: Start isEmpty. Operand 13259 states and 18213 transitions. [2020-12-23 10:41:22,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-23 10:41:22,745 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:41:22,745 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] [2020-12-23 10:41:22,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-23 10:41:22,746 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:41:22,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:41:22,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1079669093, now seen corresponding path program 1 times [2020-12-23 10:41:22,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:41:22,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101220772] [2020-12-23 10:41:22,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:41:22,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:41:22,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:41:22,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101220772] [2020-12-23 10:41:22,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:41:22,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:41:22,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330846837] [2020-12-23 10:41:22,778 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:41:22,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:41:22,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:41:22,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:41:22,783 INFO L87 Difference]: Start difference. First operand 13259 states and 18213 transitions. Second operand 3 states. [2020-12-23 10:41:27,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:41:27,840 INFO L93 Difference]: Finished difference Result 24465 states and 33763 transitions. [2020-12-23 10:41:27,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:41:27,841 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2020-12-23 10:41:27,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:41:27,860 INFO L225 Difference]: With dead ends: 24465 [2020-12-23 10:41:27,860 INFO L226 Difference]: Without dead ends: 19378 [2020-12-23 10:41:27,866 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:41:27,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19378 states. [2020-12-23 10:41:31,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19378 to 13023. [2020-12-23 10:41:31,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13023 states. [2020-12-23 10:41:31,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13023 states to 13023 states and 17876 transitions. [2020-12-23 10:41:31,489 INFO L78 Accepts]: Start accepts. Automaton has 13023 states and 17876 transitions. Word has length 64 [2020-12-23 10:41:31,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:41:31,489 INFO L481 AbstractCegarLoop]: Abstraction has 13023 states and 17876 transitions. [2020-12-23 10:41:31,489 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:41:31,490 INFO L276 IsEmpty]: Start isEmpty. Operand 13023 states and 17876 transitions. [2020-12-23 10:41:31,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-23 10:41:31,492 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:41:31,492 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:41:31,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-23 10:41:31,492 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:41:31,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:41:31,493 INFO L82 PathProgramCache]: Analyzing trace with hash 2017308149, now seen corresponding path program 1 times [2020-12-23 10:41:31,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:41:31,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543018632] [2020-12-23 10:41:31,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:41:31,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:41:31,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:41:31,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543018632] [2020-12-23 10:41:31,535 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:41:31,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 10:41:31,535 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463866833] [2020-12-23 10:41:31,536 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 10:41:31,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:41:31,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 10:41:31,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:41:31,537 INFO L87 Difference]: Start difference. First operand 13023 states and 17876 transitions. Second operand 3 states. [2020-12-23 10:41:35,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:41:35,769 INFO L93 Difference]: Finished difference Result 19669 states and 27000 transitions. [2020-12-23 10:41:35,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 10:41:35,770 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2020-12-23 10:41:35,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:41:35,786 INFO L225 Difference]: With dead ends: 19669 [2020-12-23 10:41:35,786 INFO L226 Difference]: Without dead ends: 15649 [2020-12-23 10:41:35,791 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 10:41:35,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15649 states. [2020-12-23 10:41:39,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15649 to 12622. [2020-12-23 10:41:39,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12622 states. [2020-12-23 10:41:39,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12622 states to 12622 states and 17326 transitions. [2020-12-23 10:41:39,113 INFO L78 Accepts]: Start accepts. Automaton has 12622 states and 17326 transitions. Word has length 64 [2020-12-23 10:41:39,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:41:39,113 INFO L481 AbstractCegarLoop]: Abstraction has 12622 states and 17326 transitions. [2020-12-23 10:41:39,114 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 10:41:39,114 INFO L276 IsEmpty]: Start isEmpty. Operand 12622 states and 17326 transitions. [2020-12-23 10:41:39,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-12-23 10:41:39,116 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:41:39,116 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] [2020-12-23 10:41:39,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-23 10:41:39,116 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:41:39,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:41:39,117 INFO L82 PathProgramCache]: Analyzing trace with hash 144276108, now seen corresponding path program 1 times [2020-12-23 10:41:39,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:41:39,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638025552] [2020-12-23 10:41:39,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:41:39,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:41:39,846 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 27 [2020-12-23 10:41:40,049 WARN L197 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 35 [2020-12-23 10:41:40,339 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 24 [2020-12-23 10:41:40,496 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 24 [2020-12-23 10:41:40,644 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 22 [2020-12-23 10:41:40,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:41:40,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638025552] [2020-12-23 10:41:40,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:41:40,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-12-23 10:41:40,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629429686] [2020-12-23 10:41:40,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-12-23 10:41:40,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:41:40,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-23 10:41:40,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2020-12-23 10:41:40,811 INFO L87 Difference]: Start difference. First operand 12622 states and 17326 transitions. Second operand 19 states. [2020-12-23 10:41:41,306 WARN L197 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 47 [2020-12-23 10:41:41,481 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2020-12-23 10:41:41,794 WARN L197 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2020-12-23 10:41:42,145 WARN L197 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 44 [2020-12-23 10:41:42,575 WARN L197 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 46 [2020-12-23 10:41:43,104 WARN L197 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 49 [2020-12-23 10:41:44,058 WARN L197 SmtUtils]: Spent 830.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 73 [2020-12-23 10:41:44,984 WARN L197 SmtUtils]: Spent 873.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 83 [2020-12-23 10:41:46,205 WARN L197 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 118 DAG size of output: 96 [2020-12-23 10:41:47,383 WARN L197 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 126 DAG size of output: 103 [2020-12-23 10:41:48,359 WARN L197 SmtUtils]: Spent 926.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 90 [2020-12-23 10:41:49,455 WARN L197 SmtUtils]: Spent 960.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 90 [2020-12-23 10:41:49,725 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-12-23 10:41:50,707 WARN L197 SmtUtils]: Spent 928.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 88 [2020-12-23 10:41:51,836 WARN L197 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 118 DAG size of output: 98 [2020-12-23 10:41:52,014 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-12-23 10:41:52,666 WARN L197 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 55 [2020-12-23 10:41:53,554 WARN L197 SmtUtils]: Spent 815.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 79 [2020-12-23 10:41:54,941 WARN L197 SmtUtils]: Spent 821.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 76 [2020-12-23 10:41:55,618 WARN L197 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2020-12-23 10:41:56,560 WARN L197 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2020-12-23 10:42:09,594 WARN L197 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 53 [2020-12-23 10:42:17,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 10:42:17,346 INFO L93 Difference]: Finished difference Result 49039 states and 67846 transitions. [2020-12-23 10:42:17,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-12-23 10:42:17,347 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 65 [2020-12-23 10:42:17,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 10:42:17,398 INFO L225 Difference]: With dead ends: 49039 [2020-12-23 10:42:17,399 INFO L226 Difference]: Without dead ends: 48289 [2020-12-23 10:42:17,409 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 16.1s TimeCoverageRelationStatistics Valid=402, Invalid=1578, Unknown=0, NotChecked=0, Total=1980 [2020-12-23 10:42:17,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48289 states. [2020-12-23 10:42:21,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48289 to 12616. [2020-12-23 10:42:21,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12616 states. [2020-12-23 10:42:21,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12616 states to 12616 states and 17318 transitions. [2020-12-23 10:42:21,528 INFO L78 Accepts]: Start accepts. Automaton has 12616 states and 17318 transitions. Word has length 65 [2020-12-23 10:42:21,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 10:42:21,529 INFO L481 AbstractCegarLoop]: Abstraction has 12616 states and 17318 transitions. [2020-12-23 10:42:21,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-12-23 10:42:21,529 INFO L276 IsEmpty]: Start isEmpty. Operand 12616 states and 17318 transitions. [2020-12-23 10:42:21,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-12-23 10:42:21,531 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 10:42:21,531 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 10:42:21,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-12-23 10:42:21,531 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 10:42:21,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 10:42:21,532 INFO L82 PathProgramCache]: Analyzing trace with hash 402441546, now seen corresponding path program 1 times [2020-12-23 10:42:21,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 10:42:21,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126864397] [2020-12-23 10:42:21,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 10:42:21,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 10:42:22,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 10:42:22,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126864397] [2020-12-23 10:42:22,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 10:42:22,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-23 10:42:22,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013160564] [2020-12-23 10:42:22,438 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-23 10:42:22,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 10:42:22,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-23 10:42:22,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2020-12-23 10:42:22,438 INFO L87 Difference]: Start difference. First operand 12616 states and 17318 transitions. Second operand 18 states. [2020-12-23 10:42:23,032 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 31 [2020-12-23 10:42:23,250 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-12-23 10:42:23,461 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 44 [2020-12-23 10:42:23,972 WARN L197 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 65 [2020-12-23 10:42:24,477 WARN L197 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 75 [2020-12-23 10:42:24,769 WARN L197 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2020-12-23 10:42:25,104 WARN L197 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2020-12-23 10:42:25,693 WARN L197 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2020-12-23 10:42:25,840 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2020-12-23 10:42:26,249 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2020-12-23 10:42:27,144 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44