/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/list-simple/sll2n_update_all_reverse.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:41:23,432 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:41:23,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:41:23,466 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:41:23,467 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:41:23,475 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:41:23,477 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:41:23,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:41:23,484 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:41:23,487 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:41:23,488 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:41:23,489 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:41:23,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:41:23,492 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:41:23,496 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:41:23,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:41:23,501 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:41:23,502 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:41:23,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:41:23,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:41:23,515 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:41:23,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:41:23,518 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:41:23,518 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:41:23,534 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:41:23,534 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:41:23,534 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:41:23,536 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:41:23,536 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:41:23,540 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:41:23,541 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:41:23,541 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:41:23,545 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:41:23,546 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:41:23,547 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:41:23,547 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:41:23,548 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:41:23,548 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:41:23,548 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:41:23,553 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:41:23,553 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:41:23,555 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 06:41:23,604 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:41:23,604 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:41:23,606 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:41:23,607 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:41:23,607 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:41:23,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:41:23,608 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:41:23,608 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:41:23,608 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:41:23,608 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:41:23,609 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:41:23,609 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:41:23,610 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:41:23,610 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:41:23,610 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:41:23,610 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:41:23,611 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:41:23,611 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:41:23,611 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:41:23,611 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:41:23,612 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:41:23,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:41:23,612 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:41:23,612 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:41:23,613 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:41:23,613 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:41:23,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:41:23,613 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:41:23,613 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:41:23,613 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:41:24,091 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:41:24,107 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:41:24,115 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:41:24,117 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:41:24,117 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:41:24,119 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2n_update_all_reverse.i [2020-09-25 06:41:24,213 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5041e5b7c/0e1031f16d9a425f89d242fa9902eb7d/FLAG41e552ee9 [2020-09-25 06:41:24,890 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:41:24,891 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/list-simple/sll2n_update_all_reverse.i [2020-09-25 06:41:24,905 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5041e5b7c/0e1031f16d9a425f89d242fa9902eb7d/FLAG41e552ee9 [2020-09-25 06:41:25,179 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5041e5b7c/0e1031f16d9a425f89d242fa9902eb7d [2020-09-25 06:41:25,193 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:41:25,199 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:41:25,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:41:25,201 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:41:25,205 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:41:25,206 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:41:25" (1/1) ... [2020-09-25 06:41:25,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@559d5a1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:41:25, skipping insertion in model container [2020-09-25 06:41:25,211 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:41:25" (1/1) ... [2020-09-25 06:41:25,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:41:25,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:41:25,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:41:25,799 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:41:25,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:41:25,927 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:41:25,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:41:25 WrapperNode [2020-09-25 06:41:25,927 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:41:25,928 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:41:25,928 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:41:25,929 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:41:25,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:41:25" (1/1) ... [2020-09-25 06:41:25,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:41:25" (1/1) ... [2020-09-25 06:41:25,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:41:25" (1/1) ... [2020-09-25 06:41:25,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:41:25" (1/1) ... [2020-09-25 06:41:25,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:41:25" (1/1) ... [2020-09-25 06:41:26,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:41:25" (1/1) ... [2020-09-25 06:41:26,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:41:25" (1/1) ... [2020-09-25 06:41:26,024 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:41:26,024 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:41:26,025 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:41:26,025 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:41:26,026 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:41:25" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-25 06:41:26,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:41:26,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:41:26,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-25 06:41:26,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-25 06:41:26,108 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-09-25 06:41:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2020-09-25 06:41:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_create [2020-09-25 06:41:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_destroy [2020-09-25 06:41:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_get_data_at [2020-09-25 06:41:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_update_at [2020-09-25 06:41:26,110 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:41:26,110 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:41:26,110 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-25 06:41:26,110 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-25 06:41:26,110 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 06:41:26,112 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 06:41:26,112 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 06:41:26,112 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 06:41:26,112 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 06:41:26,113 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 06:41:26,113 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 06:41:26,113 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 06:41:26,113 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 06:41:26,113 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 06:41:26,114 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 06:41:26,115 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 06:41:26,115 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 06:41:26,115 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 06:41:26,115 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 06:41:26,115 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 06:41:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 06:41:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 06:41:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 06:41:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 06:41:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 06:41:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 06:41:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 06:41:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 06:41:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 06:41:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 06:41:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 06:41:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 06:41:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 06:41:26,117 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 06:41:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 06:41:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 06:41:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 06:41:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 06:41:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 06:41:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 06:41:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 06:41:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 06:41:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 06:41:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 06:41:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 06:41:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 06:41:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 06:41:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 06:41:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 06:41:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 06:41:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 06:41:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 06:41:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 06:41:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 06:41:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:41:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 06:41:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 06:41:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:41:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 06:41:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 06:41:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 06:41:26,122 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 06:41:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 06:41:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 06:41:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 06:41:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 06:41:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 06:41:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 06:41:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 06:41:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 06:41:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 06:41:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 06:41:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 06:41:26,124 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 06:41:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 06:41:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 06:41:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 06:41:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 06:41:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 06:41:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 06:41:26,126 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 06:41:26,126 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 06:41:26,126 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 06:41:26,126 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 06:41:26,126 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 06:41:26,126 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 06:41:26,126 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 06:41:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 06:41:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 06:41:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 06:41:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 06:41:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 06:41:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 06:41:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 06:41:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 06:41:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 06:41:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 06:41:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 06:41:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 06:41:26,129 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 06:41:26,129 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 06:41:26,129 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 06:41:26,129 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 06:41:26,129 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 06:41:26,129 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 06:41:26,129 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 06:41:26,130 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 06:41:26,130 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-09-25 06:41:26,130 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2020-09-25 06:41:26,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:41:26,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:41:26,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:41:26,131 INFO L130 BoogieDeclarations]: Found specification of procedure sll_create [2020-09-25 06:41:26,131 INFO L130 BoogieDeclarations]: Found specification of procedure sll_destroy [2020-09-25 06:41:26,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:41:26,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:41:26,133 INFO L130 BoogieDeclarations]: Found specification of procedure sll_get_data_at [2020-09-25 06:41:26,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:41:26,133 INFO L130 BoogieDeclarations]: Found specification of procedure sll_update_at [2020-09-25 06:41:26,133 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:41:26,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:41:26,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:41:26,568 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-09-25 06:41:26,728 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:41:26,729 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-09-25 06:41:26,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:41:26 BoogieIcfgContainer [2020-09-25 06:41:26,735 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:41:26,736 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:41:26,736 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:41:26,740 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:41:26,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:41:25" (1/3) ... [2020-09-25 06:41:26,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc131ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:41:26, skipping insertion in model container [2020-09-25 06:41:26,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:41:25" (2/3) ... [2020-09-25 06:41:26,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc131ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:41:26, skipping insertion in model container [2020-09-25 06:41:26,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:41:26" (3/3) ... [2020-09-25 06:41:26,745 INFO L109 eAbstractionObserver]: Analyzing ICFG sll2n_update_all_reverse.i [2020-09-25 06:41:26,758 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:41:26,770 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:41:26,795 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:41:26,830 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:41:26,830 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:41:26,830 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:41:26,830 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:41:26,831 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:41:26,831 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:41:26,831 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:41:26,831 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:41:26,861 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states. [2020-09-25 06:41:26,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-25 06:41:26,873 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:26,875 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] [2020-09-25 06:41:26,875 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:41:26,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:26,884 INFO L82 PathProgramCache]: Analyzing trace with hash 482514570, now seen corresponding path program 1 times [2020-09-25 06:41:26,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:26,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [846464835] [2020-09-25 06:41:26,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:27,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:27,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:27,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:27,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:27,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:27,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:27,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 06:41:27,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:41:27,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 875 [2020-09-25 06:41:27,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:27,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:27,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:27,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 06:41:27,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:27,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 06:41:28,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:28,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:28,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:28,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:28,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:28,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:28,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 06:41:28,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:28,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:28,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:28,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:28,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:28,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:28,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 06:41:28,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:28,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:28,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:28,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:41:28,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:28,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 06:41:28,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:28,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:28,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:28,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 06:41:28,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:28,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:41:28,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 06:41:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:28,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:28,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:28,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:28,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:41:28,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:41:28,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 06:41:28,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:28,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:28,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:28,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 06:41:28,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:28,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:28,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:41:28,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [846464835] [2020-09-25 06:41:28,159 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:41:28,159 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:41:28,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407465477] [2020-09-25 06:41:28,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:41:28,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:28,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:41:28,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:41:28,190 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 4 states. [2020-09-25 06:41:28,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:41:28,611 INFO L93 Difference]: Finished difference Result 230 states and 285 transitions. [2020-09-25 06:41:28,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:41:28,613 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2020-09-25 06:41:28,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:41:28,631 INFO L225 Difference]: With dead ends: 230 [2020-09-25 06:41:28,631 INFO L226 Difference]: Without dead ends: 128 [2020-09-25 06:41:28,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:41:28,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-09-25 06:41:28,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 84. [2020-09-25 06:41:28,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-09-25 06:41:28,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 88 transitions. [2020-09-25 06:41:28,715 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 88 transitions. Word has length 38 [2020-09-25 06:41:28,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:41:28,716 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 88 transitions. [2020-09-25 06:41:28,716 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:41:28,716 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 88 transitions. [2020-09-25 06:41:28,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-25 06:41:28,718 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:28,719 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] [2020-09-25 06:41:28,719 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:41:28,720 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:41:28,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:28,720 INFO L82 PathProgramCache]: Analyzing trace with hash -613399993, now seen corresponding path program 1 times [2020-09-25 06:41:28,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:28,721 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1081193383] [2020-09-25 06:41:28,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:28,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:28,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:28,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:28,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:28,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:29,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:30,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:30,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 06:41:30,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:41:30,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1583 [2020-09-25 06:41:30,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:30,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:30,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 06:41:30,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 06:41:30,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 06:41:30,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:30,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:30,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:30,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:30,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:30,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:30,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:41:30,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:30,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:30,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:30,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:30,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:30,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:30,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 06:41:30,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:30,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:30,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:30,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:30,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:41:30,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:41:30,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 06:41:30,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:30,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:30,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:41:30,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:30,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:41:30,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:30,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 06:41:30,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:30,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:30,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:30,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:41:30,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:30,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:41:30,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:30,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:30,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:30,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:41:30,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:30,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:30,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:41:30,489 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1081193383] [2020-09-25 06:41:30,490 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:41:30,490 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:41:30,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282457731] [2020-09-25 06:41:30,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:41:30,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:30,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:41:30,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:41:30,493 INFO L87 Difference]: Start difference. First operand 84 states and 88 transitions. Second operand 6 states. [2020-09-25 06:41:30,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:41:30,970 INFO L93 Difference]: Finished difference Result 171 states and 187 transitions. [2020-09-25 06:41:30,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 06:41:30,970 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-09-25 06:41:30,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:41:30,973 INFO L225 Difference]: With dead ends: 171 [2020-09-25 06:41:30,973 INFO L226 Difference]: Without dead ends: 144 [2020-09-25 06:41:30,974 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-09-25 06:41:30,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-09-25 06:41:30,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 85. [2020-09-25 06:41:30,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-25 06:41:30,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 89 transitions. [2020-09-25 06:41:30,991 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 89 transitions. Word has length 38 [2020-09-25 06:41:30,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:41:30,992 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 89 transitions. [2020-09-25 06:41:30,992 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:41:30,992 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 89 transitions. [2020-09-25 06:41:30,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 06:41:30,994 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:30,994 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] [2020-09-25 06:41:30,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:41:30,994 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:41:30,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:30,995 INFO L82 PathProgramCache]: Analyzing trace with hash -841200203, now seen corresponding path program 1 times [2020-09-25 06:41:30,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:30,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [508125372] [2020-09-25 06:41:30,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:31,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:31,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:31,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:31,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:31,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:32,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:32,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:36,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:36,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 06:41:36,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:41:36,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 06:41:36,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:36,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:36,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:41:36,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 06:41:36,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 06:41:36,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:36,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:36,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:36,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:36,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:36,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:36,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:36,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:41:36,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:36,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:36,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:36,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:36,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:36,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:36,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 06:41:36,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:36,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:36,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:36,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:36,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:41:36,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:41:36,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 06:41:36,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:36,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:36,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:41:36,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:36,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:41:36,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:36,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-25 06:41:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:36,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:36,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:36,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:41:36,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:36,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 06:41:36,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:36,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:36,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:41:36,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:36,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:41:36,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:36,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-25 06:41:36,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:36,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:36,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:36,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:41:36,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:36,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 06:41:36,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:36,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:36,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:41:36,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 06:41:36,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:41:36,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:36,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 06:41:36,279 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [508125372] [2020-09-25 06:41:36,279 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:41:36,279 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 06:41:36,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241741372] [2020-09-25 06:41:36,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 06:41:36,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:36,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 06:41:36,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:41:36,281 INFO L87 Difference]: Start difference. First operand 85 states and 89 transitions. Second operand 9 states. [2020-09-25 06:41:36,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:41:36,936 INFO L93 Difference]: Finished difference Result 181 states and 199 transitions. [2020-09-25 06:41:36,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 06:41:36,937 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 51 [2020-09-25 06:41:36,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:41:36,939 INFO L225 Difference]: With dead ends: 181 [2020-09-25 06:41:36,939 INFO L226 Difference]: Without dead ends: 155 [2020-09-25 06:41:36,940 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2020-09-25 06:41:36,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-09-25 06:41:36,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 94. [2020-09-25 06:41:36,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-09-25 06:41:36,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 100 transitions. [2020-09-25 06:41:36,956 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 100 transitions. Word has length 51 [2020-09-25 06:41:36,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:41:36,956 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 100 transitions. [2020-09-25 06:41:36,956 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 06:41:36,957 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 100 transitions. [2020-09-25 06:41:36,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-25 06:41:36,960 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:36,960 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] [2020-09-25 06:41:36,960 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:41:36,960 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:41:36,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:36,961 INFO L82 PathProgramCache]: Analyzing trace with hash 884026993, now seen corresponding path program 1 times [2020-09-25 06:41:36,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:36,962 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [440083541] [2020-09-25 06:41:36,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:36,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:36,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:37,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:37,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:37,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:37,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:38,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:38,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:38,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:41,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:41,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 06:41:41,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 06:41:41,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 06:41:41,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:41,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:41,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:41:41,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 06:41:41,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 06:41:41,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:42,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:42,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:42,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:42,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:42,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:42,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:42,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:41:42,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:42,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:42,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:42,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:42,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:42,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:42,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 06:41:42,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:42,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:42,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:42,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:42,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:41:42,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:41:42,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 06:41:42,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:42,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:42,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:41:42,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:42,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:41:42,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:42,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-25 06:41:42,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:42,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:42,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:42,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:42,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:41:42,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:41:42,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 06:41:42,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:42,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:42,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:41:42,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:42,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:41:42,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:42,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-25 06:41:42,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:42,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:42,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:42,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 06:41:42,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:42,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 06:41:42,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:42,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:42,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:42,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 06:41:42,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:42,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:42,252 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 06:41:42,253 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [440083541] [2020-09-25 06:41:42,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:41:42,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 06:41:42,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957419160] [2020-09-25 06:41:42,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 06:41:42,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:42,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 06:41:42,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:41:42,256 INFO L87 Difference]: Start difference. First operand 94 states and 100 transitions. Second operand 9 states. [2020-09-25 06:41:42,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:41:42,871 INFO L93 Difference]: Finished difference Result 190 states and 210 transitions. [2020-09-25 06:41:42,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 06:41:42,872 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 58 [2020-09-25 06:41:42,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:41:42,875 INFO L225 Difference]: With dead ends: 190 [2020-09-25 06:41:42,875 INFO L226 Difference]: Without dead ends: 154 [2020-09-25 06:41:42,876 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-09-25 06:41:42,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-09-25 06:41:42,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 100. [2020-09-25 06:41:42,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-09-25 06:41:42,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 107 transitions. [2020-09-25 06:41:42,898 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 107 transitions. Word has length 58 [2020-09-25 06:41:42,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:41:42,900 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 107 transitions. [2020-09-25 06:41:42,900 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 06:41:42,900 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 107 transitions. [2020-09-25 06:41:42,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 06:41:42,908 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:42,909 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:41:42,909 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:41:42,909 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:41:42,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:42,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1251789089, now seen corresponding path program 2 times [2020-09-25 06:41:42,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:42,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2020069847] [2020-09-25 06:41:42,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:42,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:42,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:42,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:43,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:43,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:43,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:43,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:43,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:43,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:47,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:47,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:41:47,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 06:41:47,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 06:41:47,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:47,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:47,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:41:47,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 06:41:47,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 06:41:47,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:47,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:47,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:47,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:47,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:47,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:47,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:47,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:41:47,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:47,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:47,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:47,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:47,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:47,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:48,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 06:41:48,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:48,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:48,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:48,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:41:48,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:48,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 06:41:48,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:48,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:48,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:41:48,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:48,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 06:41:48,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:48,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-25 06:41:48,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:48,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:48,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:48,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:41:48,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:48,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 06:41:48,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:48,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:48,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:41:48,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:48,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:41:48,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:48,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-25 06:41:48,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:48,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:48,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:48,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:41:48,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:48,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 06:41:48,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:48,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:48,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:41:48,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:48,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:41:48,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:48,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-25 06:41:48,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:48,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:48,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:48,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 06:41:48,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:48,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:41:48,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:48,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:48,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:48,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 06:41:48,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:48,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:48,177 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-25 06:41:48,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2020069847] [2020-09-25 06:41:48,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:41:48,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 06:41:48,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320718316] [2020-09-25 06:41:48,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 06:41:48,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:48,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 06:41:48,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:41:48,180 INFO L87 Difference]: Start difference. First operand 100 states and 107 transitions. Second operand 9 states. [2020-09-25 06:41:48,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:41:48,585 INFO L93 Difference]: Finished difference Result 177 states and 192 transitions. [2020-09-25 06:41:48,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 06:41:48,585 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2020-09-25 06:41:48,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:41:48,587 INFO L225 Difference]: With dead ends: 177 [2020-09-25 06:41:48,587 INFO L226 Difference]: Without dead ends: 108 [2020-09-25 06:41:48,592 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-09-25 06:41:48,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-09-25 06:41:48,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 101. [2020-09-25 06:41:48,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-09-25 06:41:48,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 108 transitions. [2020-09-25 06:41:48,616 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 108 transitions. Word has length 71 [2020-09-25 06:41:48,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:41:48,617 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 108 transitions. [2020-09-25 06:41:48,617 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 06:41:48,617 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 108 transitions. [2020-09-25 06:41:48,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-25 06:41:48,620 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:48,620 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:41:48,620 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:41:48,621 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:41:48,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:48,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1557630765, now seen corresponding path program 1 times [2020-09-25 06:41:48,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:48,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2031784905] [2020-09-25 06:41:48,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:48,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:48,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:48,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:48,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:49,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:49,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:50,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:53,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:53,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-25 06:41:53,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:41:53,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 06:41:53,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:53,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:53,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:41:53,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 06:41:53,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 06:41:53,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:53,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:53,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:53,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:53,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:53,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:53,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:53,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:41:53,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:53,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:53,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:53,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:53,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:53,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:41:53,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 06:41:53,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:53,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:53,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:53,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:53,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 06:41:53,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:41:53,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-09-25 06:41:53,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:53,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:53,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:41:53,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:53,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 06:41:53,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:53,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 06:41:53,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:53,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:53,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:53,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:41:53,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:53,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 06:41:53,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:53,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:53,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:53,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:53,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:53,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:41:53,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-25 06:41:53,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:53,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:54,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:54,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:41:54,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:54,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 06:41:54,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:54,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:54,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:41:54,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 06:41:54,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:41:54,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:41:54,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-09-25 06:41:54,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:54,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:54,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:54,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:41:54,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:54,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:41:54,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:54,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:54,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:54,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 06:41:54,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:54,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:54,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-25 06:41:54,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:54,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:54,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:54,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 06:41:54,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:54,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 06:41:54,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:54,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:54,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:54,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 06:41:54,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:54,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:54,104 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-25 06:41:54,104 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2031784905] [2020-09-25 06:41:54,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:41:54,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 06:41:54,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449689447] [2020-09-25 06:41:54,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 06:41:54,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:41:54,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 06:41:54,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:41:54,111 INFO L87 Difference]: Start difference. First operand 101 states and 108 transitions. Second operand 9 states. [2020-09-25 06:41:54,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:41:54,624 INFO L93 Difference]: Finished difference Result 178 states and 193 transitions. [2020-09-25 06:41:54,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 06:41:54,624 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 89 [2020-09-25 06:41:54,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:41:54,626 INFO L225 Difference]: With dead ends: 178 [2020-09-25 06:41:54,626 INFO L226 Difference]: Without dead ends: 119 [2020-09-25 06:41:54,627 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2020-09-25 06:41:54,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-09-25 06:41:54,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 105. [2020-09-25 06:41:54,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-09-25 06:41:54,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 113 transitions. [2020-09-25 06:41:54,636 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 113 transitions. Word has length 89 [2020-09-25 06:41:54,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:41:54,637 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 113 transitions. [2020-09-25 06:41:54,637 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 06:41:54,637 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 113 transitions. [2020-09-25 06:41:54,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-09-25 06:41:54,638 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:41:54,638 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:41:54,638 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 06:41:54,638 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:41:54,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:41:54,639 INFO L82 PathProgramCache]: Analyzing trace with hash -1758688301, now seen corresponding path program 1 times [2020-09-25 06:41:54,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:41:54,639 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [197251775] [2020-09-25 06:41:54,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:41:54,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:54,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:54,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:54,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:55,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:56,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:58,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:58,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:59,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:59,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:59,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-09-25 06:41:59,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 06:41:59,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5088 [2020-09-25 06:41:59,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:59,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:59,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 06:41:59,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 06:41:59,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-25 06:41:59,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:59,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:41:59,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:59,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:41:59,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:41:59,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:41:59,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:41:59,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:41:59,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:41:59,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:41:59,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:41:59,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:41:59,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:41:59,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:41:59,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 06:41:59,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:41:59,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:00,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:42:00,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 06:42:00,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:42:00,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-09-25 06:42:00,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:42:00,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:42:00,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:42:00,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:42:00,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 06:42:00,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:42:00,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 06:42:00,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:42:00,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:00,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:42:00,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:42:00,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:42:00,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 06:42:00,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:42:00,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:42:00,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:42:00,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:42:00,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 06:42:00,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:42:00,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-25 06:42:00,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:42:00,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:00,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:42:00,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 06:42:00,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:42:00,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 06:42:00,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:42:00,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:42:00,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:42:00,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:42:00,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 06:42:00,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:42:00,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-25 06:42:00,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:42:00,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:00,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:42:00,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:42:00,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:42:00,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 06:42:00,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:42:00,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:42:00,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:42:00,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:42:00,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:42:00,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:42:00,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-09-25 06:42:00,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:42:00,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:00,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:42:00,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 06:42:00,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:42:00,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 06:42:00,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:42:00,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:42:00,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:42:00,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 06:42:00,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 06:42:00,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:42:00,403 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-25 06:42:00,404 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [197251775] [2020-09-25 06:42:00,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:42:00,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 06:42:00,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099651608] [2020-09-25 06:42:00,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 06:42:00,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:42:00,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 06:42:00,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-09-25 06:42:00,407 INFO L87 Difference]: Start difference. First operand 105 states and 113 transitions. Second operand 13 states. [2020-09-25 06:42:01,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:42:01,045 INFO L93 Difference]: Finished difference Result 182 states and 200 transitions. [2020-09-25 06:42:01,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 06:42:01,047 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 96 [2020-09-25 06:42:01,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:42:01,049 INFO L225 Difference]: With dead ends: 182 [2020-09-25 06:42:01,049 INFO L226 Difference]: Without dead ends: 126 [2020-09-25 06:42:01,050 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=382, Unknown=0, NotChecked=0, Total=462 [2020-09-25 06:42:01,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-09-25 06:42:01,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 114. [2020-09-25 06:42:01,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-09-25 06:42:01,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 123 transitions. [2020-09-25 06:42:01,059 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 123 transitions. Word has length 96 [2020-09-25 06:42:01,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:42:01,059 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 123 transitions. [2020-09-25 06:42:01,059 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 06:42:01,059 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 123 transitions. [2020-09-25 06:42:01,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-09-25 06:42:01,060 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:42:01,061 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:42:01,061 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 06:42:01,061 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:42:01,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:42:01,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1090353339, now seen corresponding path program 2 times [2020-09-25 06:42:01,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:42:01,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1152949225] [2020-09-25 06:42:01,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:42:01,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:42:01,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:03,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:03,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:04,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:05,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:05,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:06,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:42:06,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-25 06:42:06,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:42:06,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 06:42:06,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:42:06,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:42:06,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 48 [2020-09-25 06:42:06,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 06:42:06,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-25 06:42:06,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:42:06,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:42:06,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:42:06,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:06,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:42:06,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:42:06,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:42:06,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:42:06,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:42:06,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:42:06,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:42:06,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:42:06,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:42:06,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:42:06,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 06:42:06,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:42:06,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:07,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:42:07,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:42:07,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 06:42:07,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:42:07,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1122 [2020-09-25 06:42:07,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:42:07,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:42:07,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 06:42:07,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:42:07,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 06:42:07,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:42:08,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 06:42:08,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:42:08,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking...