/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=1.0 --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-ext3-properties/sll_nondet_insert-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:59:30,839 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:59:30,843 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:59:30,874 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:59:30,874 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:59:30,875 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:59:30,878 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:59:30,886 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:59:30,889 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:59:30,891 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:59:30,892 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:59:30,894 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:59:30,894 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:59:30,897 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:59:30,901 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:59:30,904 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:59:30,906 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:59:30,909 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:59:30,911 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:59:30,917 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:59:30,921 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:59:30,922 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:59:30,924 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:59:30,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:59:30,931 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:59:30,931 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:59:30,931 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:59:30,934 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:59:30,935 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:59:30,937 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:59:30,937 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:59:30,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:59:30,952 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:59:30,953 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:59:30,954 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:59:30,955 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:59:30,955 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:59:30,956 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:59:30,956 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:59:30,960 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:59:30,961 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:59:30,964 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 08:59:31,014 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:59:31,015 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:59:31,016 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:59:31,016 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:59:31,017 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:59:31,017 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:59:31,017 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:59:31,017 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:59:31,017 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:59:31,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:59:31,019 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:59:31,020 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:59:31,020 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:59:31,020 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:59:31,021 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:59:31,021 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:59:31,021 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:59:31,022 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:59:31,022 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:59:31,022 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:59:31,022 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:59:31,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:59:31,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:59:31,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:59:31,023 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:59:31,023 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:59:31,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:59:31,024 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:59:31,024 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:59:31,024 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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;log-additional-information=true; [2020-09-25 08:59:31,457 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:59:31,479 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:59:31,484 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:59:31,486 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:59:31,486 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:59:31,487 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext3-properties/sll_nondet_insert-1.i [2020-09-25 08:59:31,581 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4e238dc12/e8117e590baf45438c6635adba21214c/FLAG9de280387 [2020-09-25 08:59:32,211 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:59:32,212 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/list-ext3-properties/sll_nondet_insert-1.i [2020-09-25 08:59:32,235 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4e238dc12/e8117e590baf45438c6635adba21214c/FLAG9de280387 [2020-09-25 08:59:32,499 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4e238dc12/e8117e590baf45438c6635adba21214c [2020-09-25 08:59:32,511 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:59:32,517 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:59:32,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:59:32,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:59:32,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:59:32,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:59:32" (1/1) ... [2020-09-25 08:59:32,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6665a633 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:59:32, skipping insertion in model container [2020-09-25 08:59:32,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:59:32" (1/1) ... [2020-09-25 08:59:32,538 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:59:32,610 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:59:33,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:59:33,077 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:59:33,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:59:33,207 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:59:33,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:59:33 WrapperNode [2020-09-25 08:59:33,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:59:33,209 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:59:33,209 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:59:33,209 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:59:33,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:59:33" (1/1) ... [2020-09-25 08:59:33,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:59:33" (1/1) ... [2020-09-25 08:59:33,246 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:59:33" (1/1) ... [2020-09-25 08:59:33,246 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:59:33" (1/1) ... [2020-09-25 08:59:33,265 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:59:33" (1/1) ... [2020-09-25 08:59:33,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:59:33" (1/1) ... [2020-09-25 08:59:33,280 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:59:33" (1/1) ... [2020-09-25 08:59:33,288 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:59:33,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:59:33,289 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:59:33,289 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:59:33,290 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:59:33" (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 08:59:33,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:59:33,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:59:33,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-25 08:59:33,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-25 08:59:33,366 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-09-25 08:59:33,367 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_create [2020-09-25 08:59:33,367 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_length [2020-09-25 08:59:33,367 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_destroy [2020-09-25 08:59:33,367 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_insert [2020-09-25 08:59:33,367 INFO L138 BoogieDeclarations]: Found implementation of procedure _get_nondet_int [2020-09-25 08:59:33,368 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:59:33,368 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:59:33,368 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:59:33,368 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-25 08:59:33,368 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-25 08:59:33,368 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 08:59:33,369 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 08:59:33,369 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 08:59:33,369 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 08:59:33,369 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 08:59:33,369 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 08:59:33,370 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 08:59:33,370 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 08:59:33,370 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 08:59:33,370 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 08:59:33,370 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 08:59:33,370 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 08:59:33,371 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 08:59:33,371 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 08:59:33,371 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 08:59:33,371 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 08:59:33,371 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 08:59:33,371 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 08:59:33,372 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 08:59:33,372 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 08:59:33,372 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 08:59:33,372 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 08:59:33,372 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 08:59:33,372 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 08:59:33,373 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 08:59:33,373 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 08:59:33,373 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 08:59:33,373 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 08:59:33,373 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 08:59:33,373 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 08:59:33,373 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 08:59:33,373 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 08:59:33,373 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 08:59:33,374 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 08:59:33,374 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 08:59:33,374 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 08:59:33,374 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 08:59:33,374 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 08:59:33,374 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 08:59:33,375 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 08:59:33,375 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 08:59:33,375 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 08:59:33,375 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 08:59:33,375 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 08:59:33,375 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 08:59:33,375 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 08:59:33,375 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 08:59:33,375 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 08:59:33,375 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 08:59:33,376 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 08:59:33,376 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:59:33,376 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 08:59:33,376 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 08:59:33,376 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:59:33,376 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 08:59:33,377 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 08:59:33,377 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 08:59:33,377 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 08:59:33,377 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 08:59:33,377 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 08:59:33,377 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 08:59:33,378 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 08:59:33,378 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 08:59:33,378 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 08:59:33,378 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 08:59:33,378 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 08:59:33,378 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 08:59:33,379 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 08:59:33,379 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 08:59:33,379 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 08:59:33,379 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 08:59:33,379 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 08:59:33,379 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 08:59:33,380 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 08:59:33,380 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 08:59:33,380 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 08:59:33,380 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 08:59:33,380 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 08:59:33,380 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 08:59:33,380 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 08:59:33,380 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 08:59:33,380 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 08:59:33,380 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 08:59:33,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 08:59:33,381 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 08:59:33,381 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 08:59:33,381 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 08:59:33,381 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 08:59:33,381 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 08:59:33,381 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 08:59:33,381 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 08:59:33,381 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 08:59:33,382 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 08:59:33,382 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 08:59:33,382 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 08:59:33,382 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 08:59:33,382 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 08:59:33,382 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 08:59:33,382 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 08:59:33,382 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 08:59:33,382 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 08:59:33,383 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 08:59:33,383 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 08:59:33,383 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-09-25 08:59:33,383 INFO L130 BoogieDeclarations]: Found specification of procedure sll_create [2020-09-25 08:59:33,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:59:33,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:59:33,384 INFO L130 BoogieDeclarations]: Found specification of procedure sll_length [2020-09-25 08:59:33,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:59:33,384 INFO L130 BoogieDeclarations]: Found specification of procedure sll_destroy [2020-09-25 08:59:33,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:59:33,384 INFO L130 BoogieDeclarations]: Found specification of procedure sll_insert [2020-09-25 08:59:33,384 INFO L130 BoogieDeclarations]: Found specification of procedure _get_nondet_int [2020-09-25 08:59:33,385 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:59:33,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:59:33,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 08:59:33,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:59:33,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:59:33,732 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-09-25 08:59:34,056 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:59:34,056 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-09-25 08:59:34,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:59:34 BoogieIcfgContainer [2020-09-25 08:59:34,068 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:59:34,070 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:59:34,070 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:59:34,074 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:59:34,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:59:32" (1/3) ... [2020-09-25 08:59:34,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d269646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:59:34, skipping insertion in model container [2020-09-25 08:59:34,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:59:33" (2/3) ... [2020-09-25 08:59:34,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d269646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:59:34, skipping insertion in model container [2020-09-25 08:59:34,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:59:34" (3/3) ... [2020-09-25 08:59:34,089 INFO L109 eAbstractionObserver]: Analyzing ICFG sll_nondet_insert-1.i [2020-09-25 08:59:34,101 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:59:34,113 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:59:34,132 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:59:34,159 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:59:34,159 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:59:34,159 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:59:34,159 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:59:34,159 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:59:34,160 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:59:34,160 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:59:34,160 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:59:34,186 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states. [2020-09-25 08:59:34,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-25 08:59:34,198 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:59:34,199 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 08:59:34,200 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:59:34,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:59:34,208 INFO L82 PathProgramCache]: Analyzing trace with hash 422432984, now seen corresponding path program 1 times [2020-09-25 08:59:34,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:59:34,218 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1356651059] [2020-09-25 08:59:34,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:59:34,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:34,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:34,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:34,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:34,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:34,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:34,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 08:59:34,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:59:34,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 434 [2020-09-25 08:59:34,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:34,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:34,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:34,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 08:59:34,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:34,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-09-25 08:59:34,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:59:34,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:34,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:34,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:34,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:59:34,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:34,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 08:59:34,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:34,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:34,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:34,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:34,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:34,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:34,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 08:59:34,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:34,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:34,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:34,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 08:59:34,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:34,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:59:34,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:34,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:34,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:34,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 08:59:34,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:34,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:34,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 08:59:34,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:34,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:34,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:34,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:34,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:59:34,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:59:34,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 08:59:34,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:34,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:34,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:34,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 08:59:34,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:34,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:34,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 08:59:34,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:34,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:35,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:35,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:35,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 08:59:35,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:59:35,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 08:59:35,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:35,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:35,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:35,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 08:59:35,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:35,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 08:59:35,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-25 08:59:35,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:35,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:35,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:35,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:59:35,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:35,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 08:59:35,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:35,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:35,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:35,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 08:59:35,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:35,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:35,078 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 08:59:35,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1356651059] [2020-09-25 08:59:35,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:59:35,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-09-25 08:59:35,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829779327] [2020-09-25 08:59:35,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 08:59:35,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:59:35,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 08:59:35,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:59:35,116 INFO L87 Difference]: Start difference. First operand 142 states. Second operand 4 states. [2020-09-25 08:59:35,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:59:35,507 INFO L93 Difference]: Finished difference Result 289 states and 337 transitions. [2020-09-25 08:59:35,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 08:59:35,509 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2020-09-25 08:59:35,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:59:35,525 INFO L225 Difference]: With dead ends: 289 [2020-09-25 08:59:35,526 INFO L226 Difference]: Without dead ends: 123 [2020-09-25 08:59:35,531 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 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 08:59:35,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-09-25 08:59:35,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 114. [2020-09-25 08:59:35,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-09-25 08:59:35,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 123 transitions. [2020-09-25 08:59:35,598 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 123 transitions. Word has length 54 [2020-09-25 08:59:35,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:59:35,598 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 123 transitions. [2020-09-25 08:59:35,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 08:59:35,598 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 123 transitions. [2020-09-25 08:59:35,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 08:59:35,602 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:59:35,603 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 08:59:35,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:59:35,603 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:59:35,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:59:35,604 INFO L82 PathProgramCache]: Analyzing trace with hash 333013349, now seen corresponding path program 1 times [2020-09-25 08:59:35,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:59:35,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [969083557] [2020-09-25 08:59:35,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:59:35,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:35,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:35,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:35,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:35,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:36,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:36,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:36,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:36,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:40,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:40,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 08:59:40,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 08:59:40,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 08:59:40,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:40,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:40,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 08:59:40,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 08:59:40,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 08:59:40,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:40,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:59:40,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:40,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:40,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:40,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:59:40,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:40,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:59:40,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:40,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:40,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:40,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:40,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:40,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:40,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 08:59:40,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:40,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:40,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:40,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:40,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:40,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:40,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:40,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:59:40,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:59:40,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-09-25 08:59:40,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:40,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:40,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:59:40,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:40,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 08:59:40,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:41,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-25 08:59:41,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:41,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:41,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:41,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:41,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:59:41,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:59:41,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 08:59:41,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:41,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:41,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:59:41,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:41,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 08:59:41,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:41,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-25 08:59:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:41,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:41,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:41,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:41,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:59:41,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:59:41,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 08:59:41,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:41,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:41,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:59:41,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:59:41,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 08:59:41,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:41,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 08:59:41,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:41,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:41,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:41,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:59:41,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:41,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:59:41,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:41,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:41,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:41,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 08:59:41,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:41,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:41,287 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 08:59:41,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [969083557] [2020-09-25 08:59:41,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:59:41,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 08:59:41,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855479185] [2020-09-25 08:59:41,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 08:59:41,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:59:41,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 08:59:41,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-09-25 08:59:41,292 INFO L87 Difference]: Start difference. First operand 114 states and 123 transitions. Second operand 14 states. [2020-09-25 08:59:42,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:59:42,479 INFO L93 Difference]: Finished difference Result 305 states and 347 transitions. [2020-09-25 08:59:42,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 08:59:42,480 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 69 [2020-09-25 08:59:42,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:59:42,484 INFO L225 Difference]: With dead ends: 305 [2020-09-25 08:59:42,484 INFO L226 Difference]: Without dead ends: 199 [2020-09-25 08:59:42,486 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=172, Invalid=530, Unknown=0, NotChecked=0, Total=702 [2020-09-25 08:59:42,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2020-09-25 08:59:42,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 147. [2020-09-25 08:59:42,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-09-25 08:59:42,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 166 transitions. [2020-09-25 08:59:42,512 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 166 transitions. Word has length 69 [2020-09-25 08:59:42,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:59:42,512 INFO L479 AbstractCegarLoop]: Abstraction has 147 states and 166 transitions. [2020-09-25 08:59:42,513 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 08:59:42,513 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 166 transitions. [2020-09-25 08:59:42,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-09-25 08:59:42,516 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:59:42,516 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 08:59:42,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:59:42,517 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:59:42,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:59:42,517 INFO L82 PathProgramCache]: Analyzing trace with hash 454377439, now seen corresponding path program 1 times [2020-09-25 08:59:42,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:59:42,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [442914803] [2020-09-25 08:59:42,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:59:42,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:42,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:42,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:44,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:44,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 08:59:44,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:59:44,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2330 [2020-09-25 08:59:44,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:44,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:44,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 08:59:44,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 08:59:44,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 08:59:44,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:44,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:59:44,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:44,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:44,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:44,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:59:44,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:44,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:59:44,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:44,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:44,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:44,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:44,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:44,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:44,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 08:59:44,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:44,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:44,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:44,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 08:59:44,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:44,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 08:59:44,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:44,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:44,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:59:44,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:44,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 08:59:44,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:45,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 08:59:45,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:45,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:45,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:45,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:59:45,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:45,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 08:59:45,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:45,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:45,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:59:45,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:59:45,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 08:59:45,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:45,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-25 08:59:45,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:45,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:45,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:45,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 08:59:45,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:45,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 08:59:45,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:45,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:45,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:45,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 08:59:45,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:45,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:45,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-25 08:59:45,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:45,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:45,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:45,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:59:45,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:45,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:59:45,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:45,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:45,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:45,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 08:59:45,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:45,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:45,188 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 08:59:45,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [442914803] [2020-09-25 08:59:45,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:59:45,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 08:59:45,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182903702] [2020-09-25 08:59:45,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 08:59:45,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:59:45,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 08:59:45,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2020-09-25 08:59:45,191 INFO L87 Difference]: Start difference. First operand 147 states and 166 transitions. Second operand 12 states. [2020-09-25 08:59:45,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:59:45,988 INFO L93 Difference]: Finished difference Result 310 states and 352 transitions. [2020-09-25 08:59:45,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 08:59:45,988 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 73 [2020-09-25 08:59:45,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:59:45,991 INFO L225 Difference]: With dead ends: 310 [2020-09-25 08:59:45,991 INFO L226 Difference]: Without dead ends: 199 [2020-09-25 08:59:45,993 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=446, Unknown=0, NotChecked=0, Total=552 [2020-09-25 08:59:45,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2020-09-25 08:59:46,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 154. [2020-09-25 08:59:46,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-09-25 08:59:46,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 174 transitions. [2020-09-25 08:59:46,012 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 174 transitions. Word has length 73 [2020-09-25 08:59:46,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:59:46,013 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 174 transitions. [2020-09-25 08:59:46,014 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 08:59:46,014 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 174 transitions. [2020-09-25 08:59:46,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-25 08:59:46,024 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:59:46,024 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-09-25 08:59:46,025 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:59:46,025 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:59:46,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:59:46,025 INFO L82 PathProgramCache]: Analyzing trace with hash -472966004, now seen corresponding path program 1 times [2020-09-25 08:59:46,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:59:46,027 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1982494876] [2020-09-25 08:59:46,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:59:46,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:46,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:46,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:46,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:46,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:46,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:46,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:46,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:46,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:46,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:47,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:47,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:47,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:47,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:48,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:48,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:48,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:48,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:48,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:48,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:49,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:49,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:49,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:50,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:50,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:50,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:50,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:50,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:51,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:51,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-25 08:59:51,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 27 [2020-09-25 08:59:51,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 08:59:51,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:51,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:51,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 08:59:51,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 08:59:51,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 08:59:51,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:51,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:59:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:51,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:51,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:51,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:59:51,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:51,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 08:59:51,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:51,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:51,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:51,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:51,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:51,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:51,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 08:59:51,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:51,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:51,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:51,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:51,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:51,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:51,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:51,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:52,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:52,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 08:59:52,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 08:59:52,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 886 [2020-09-25 08:59:52,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:52,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:52,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:59:52,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:52,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 08:59:52,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:52,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-25 08:59:52,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:52,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:52,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:52,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:52,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:59:52,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:59:52,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 08:59:52,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:52,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:52,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:59:52,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:52,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 08:59:52,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:52,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-25 08:59:52,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:52,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:52,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:52,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:52,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:59:52,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:59:52,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-25 08:59:52,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:52,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:52,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:59:52,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:59:52,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 08:59:52,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:52,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-25 08:59:52,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:52,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:52,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:52,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:59:52,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:52,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:59:52,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:52,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:52,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:52,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 08:59:52,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:52,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:52,448 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 08:59:52,449 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1982494876] [2020-09-25 08:59:52,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:59:52,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 08:59:52,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910409992] [2020-09-25 08:59:52,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 08:59:52,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:59:52,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 08:59:52,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2020-09-25 08:59:52,453 INFO L87 Difference]: Start difference. First operand 154 states and 174 transitions. Second operand 15 states. [2020-09-25 08:59:54,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:59:54,230 INFO L93 Difference]: Finished difference Result 392 states and 452 transitions. [2020-09-25 08:59:54,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 08:59:54,231 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 79 [2020-09-25 08:59:54,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:59:54,233 INFO L225 Difference]: With dead ends: 392 [2020-09-25 08:59:54,234 INFO L226 Difference]: Without dead ends: 284 [2020-09-25 08:59:54,235 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=295, Invalid=1037, Unknown=0, NotChecked=0, Total=1332 [2020-09-25 08:59:54,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-09-25 08:59:54,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 194. [2020-09-25 08:59:54,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-09-25 08:59:54,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 217 transitions. [2020-09-25 08:59:54,266 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 217 transitions. Word has length 79 [2020-09-25 08:59:54,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:59:54,266 INFO L479 AbstractCegarLoop]: Abstraction has 194 states and 217 transitions. [2020-09-25 08:59:54,266 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 08:59:54,267 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 217 transitions. [2020-09-25 08:59:54,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-09-25 08:59:54,268 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:59:54,269 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-09-25 08:59:54,269 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:59:54,269 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:59:54,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:59:54,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1660389815, now seen corresponding path program 2 times [2020-09-25 08:59:54,270 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:59:54,270 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1252657437] [2020-09-25 08:59:54,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:59:54,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:54,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:54,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:54,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:54,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:56,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:57,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:57,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:59,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:59,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 08:59:59,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 08:59:59,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 08:59:59,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:59,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:59,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 08:59:59,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 08:59:59,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 08:59:59,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:59,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:59:59,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:59,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:59,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:59,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:59:59,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:59,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:59:59,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:59,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:59,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:59,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:59,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:59,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:59,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 08:59:59,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:59,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:59,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:59,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:59,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:59,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:59,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 08:59:59,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:59:59,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 303 [2020-09-25 08:59:59,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:59,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:59,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:59:59,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:59,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 08:59:59,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:59,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-25 08:59:59,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:59,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:59,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:59,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:59:59,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:59,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 08:59:59,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:59,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:59,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:59:59,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:59:59,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 08:59:59,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:59:59,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-25 08:59:59,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:59,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:59,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:59,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 08:59:59,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:59,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:59:59,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:59,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:59,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:59,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 08:59:59,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:59,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:59:59,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-25 08:59:59,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:59,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:59,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:59,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:59:59,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:59,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:59:59,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:59,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:59,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:59,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 08:59:59,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:59,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:59,856 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 08:59:59,856 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1252657437] [2020-09-25 08:59:59,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:59:59,857 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 08:59:59,857 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303209585] [2020-09-25 08:59:59,857 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 08:59:59,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:59:59,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 08:59:59,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2020-09-25 08:59:59,858 INFO L87 Difference]: Start difference. First operand 194 states and 217 transitions. Second operand 13 states. [2020-09-25 09:00:01,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:00:01,013 INFO L93 Difference]: Finished difference Result 383 states and 442 transitions. [2020-09-25 09:00:01,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 09:00:01,013 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 81 [2020-09-25 09:00:01,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:00:01,016 INFO L225 Difference]: With dead ends: 383 [2020-09-25 09:00:01,016 INFO L226 Difference]: Without dead ends: 277 [2020-09-25 09:00:01,017 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=121, Invalid=529, Unknown=0, NotChecked=0, Total=650 [2020-09-25 09:00:01,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-09-25 09:00:01,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 206. [2020-09-25 09:00:01,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-09-25 09:00:01,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 232 transitions. [2020-09-25 09:00:01,054 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 232 transitions. Word has length 81 [2020-09-25 09:00:01,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:00:01,055 INFO L479 AbstractCegarLoop]: Abstraction has 206 states and 232 transitions. [2020-09-25 09:00:01,055 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 09:00:01,055 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 232 transitions. [2020-09-25 09:00:01,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-09-25 09:00:01,059 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:00:01,059 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1] [2020-09-25 09:00:01,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 09:00:01,060 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:00:01,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:00:01,060 INFO L82 PathProgramCache]: Analyzing trace with hash 27846035, now seen corresponding path program 1 times [2020-09-25 09:00:01,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:00:01,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [555681749] [2020-09-25 09:00:01,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:00:01,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:00:01,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:00:01,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:00:02,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:00:02,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:00:06,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:00:06,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-09-25 09:00:06,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:00:06,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 09:00:06,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:00:06,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:00:06,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 09:00:06,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-25 09:00:06,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 09:00:06,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:00:06,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:00:06,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:00:06,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:00:06,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:00:06,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:00:06,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:00:06,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:00:06,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:00:06,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:00:06,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:00:06,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:00:06,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:00:06,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:00:06,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 09:00:06,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:00:06,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:00:06,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:00:06,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 09:00:06,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:00:06,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:00:06,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:00:06,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:00:06,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:00:06,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:00:06,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:00:06,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:00:06,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 09:00:06,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:00:06,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:00:06,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:00:06,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 09:00:06,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:00:06,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-25 09:00:06,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:00:06,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:00:06,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:00:06,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:00:06,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 09:00:06,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:00:06,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 09:00:06,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:00:06,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:00:06,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:00:06,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 09:00:06,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:00:06,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 09:00:06,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:00:06,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:00:06,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:00:06,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:00:06,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 09:00:06,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:00:06,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-25 09:00:06,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:00:06,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:00:06,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:00:06,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:00:06,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:00:06,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 09:00:06,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:00:06,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:00:06,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:00:06,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 09:00:06,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:00:06,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:00:06,596 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-09-25 09:00:06,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [555681749] [2020-09-25 09:00:06,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:00:06,598 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 09:00:06,598 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476899285] [2020-09-25 09:00:06,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 09:00:06,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:00:06,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 09:00:06,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-09-25 09:00:06,600 INFO L87 Difference]: Start difference. First operand 206 states and 232 transitions. Second operand 13 states. [2020-09-25 09:00:07,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:00:07,570 INFO L93 Difference]: Finished difference Result 259 states and 294 transitions. [2020-09-25 09:00:07,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 09:00:07,570 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 82 [2020-09-25 09:00:07,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:00:07,575 INFO L225 Difference]: With dead ends: 259 [2020-09-25 09:00:07,576 INFO L226 Difference]: Without dead ends: 253 [2020-09-25 09:00:07,576 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=353, Unknown=0, NotChecked=0, Total=420 [2020-09-25 09:00:07,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2020-09-25 09:00:07,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 229. [2020-09-25 09:00:07,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-09-25 09:00:07,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 262 transitions. [2020-09-25 09:00:07,593 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 262 transitions. Word has length 82 [2020-09-25 09:00:07,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:00:07,593 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 262 transitions. [2020-09-25 09:00:07,593 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 09:00:07,594 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 262 transitions. [2020-09-25 09:00:07,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-25 09:00:07,596 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:00:07,596 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2020-09-25 09:00:07,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 09:00:07,596 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:00:07,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:00:07,597 INFO L82 PathProgramCache]: Analyzing trace with hash 903548806, now seen corresponding path program 1 times [2020-09-25 09:00:07,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:00:07,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1977158061] [2020-09-25 09:00:07,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:00:07,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:00:07,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:00:07,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:00:10,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:00:10,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-25 09:00:10,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:00:10,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2941 [2020-09-25 09:00:10,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:00:10,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:00:10,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 09:00:10,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 09:00:10,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 09:00:10,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:00:10,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:00:10,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:00:10,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:00:10,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:00:10,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:00:10,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:00:10,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:00:10,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:00:10,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:00:10,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:00:10,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:00:10,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:00:10,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:00:10,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 09:00:10,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:00:10,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:00:10,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:00:10,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 09:00:10,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:00:10,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-25 09:00:10,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:00:10,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:00:10,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 09:00:10,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:00:10,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 09:00:10,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:00:10,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-25 09:00:10,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:00:10,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:00:10,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:00:10,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 09:00:10,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:00:10,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 09:00:10,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:00:10,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:00:10,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:00:10,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 09:00:10,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 09:00:10,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:00:10,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-25 09:00:10,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:00:10,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:00:10,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:00:10,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 09:00:10,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:00:10,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 09:00:10,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:00:10,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:00:10,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:00:10,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 09:00:10,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:00:10,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:00:10,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-25 09:00:10,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:00:10,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:00:10,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:00:10,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:00:10,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:00:10,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:00:10,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:00:10,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:00:10,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:00:10,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 09:00:10,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:00:10,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:00:10,896 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 09:00:10,896 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1977158061] [2020-09-25 09:00:10,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:00:10,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 09:00:10,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765093197] [2020-09-25 09:00:10,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 09:00:10,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:00:10,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 09:00:10,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2020-09-25 09:00:10,899 INFO L87 Difference]: Start difference. First operand 229 states and 262 transitions. Second operand 14 states. [2020-09-25 09:00:12,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:00:12,155 INFO L93 Difference]: Finished difference Result 404 states and 466 transitions. [2020-09-25 09:00:12,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 09:00:12,156 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 83 [2020-09-25 09:00:12,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:00:12,160 INFO L225 Difference]: With dead ends: 404 [2020-09-25 09:00:12,160 INFO L226 Difference]: Without dead ends: 290 [2020-09-25 09:00:12,163 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=146, Invalid=666, Unknown=0, NotChecked=0, Total=812 [2020-09-25 09:00:12,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-09-25 09:00:12,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 193. [2020-09-25 09:00:12,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-09-25 09:00:12,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 217 transitions. [2020-09-25 09:00:12,188 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 217 transitions. Word has length 83 [2020-09-25 09:00:12,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:00:12,188 INFO L479 AbstractCegarLoop]: Abstraction has 193 states and 217 transitions. [2020-09-25 09:00:12,189 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 09:00:12,189 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 217 transitions. [2020-09-25 09:00:12,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-25 09:00:12,190 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:00:12,191 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:00:12,191 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 09:00:12,191 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:00:12,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:00:12,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1804595944, now seen corresponding path program 1 times [2020-09-25 09:00:12,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:00:12,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [22181228] [2020-09-25 09:00:12,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:00:12,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:00:12,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:00:12,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:00:14,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:00:17,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:00:17,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-09-25 09:00:17,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:00:17,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 09:00:17,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:00:17,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:00:17,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 09:00:17,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 09:00:17,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 09:00:17,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:00:17,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:00:17,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:00:17,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:00:17,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:00:17,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:00:17,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:00:17,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:00:17,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:00:17,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:00:17,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:00:17,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:00:17,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:00:17,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:00:17,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 09:00:17,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:00:17,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:00:17,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:00:17,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 09:00:17,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:00:17,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:00:17,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:00:17,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:00:17,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:00:17,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:00:17,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:00:17,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:00:17,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 09:00:17,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:00:17,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:00:17,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:00:17,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 09:00:17,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:00:17,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-25 09:00:17,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:00:17,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:00:17,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 09:00:17,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:00:17,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 09:00:17,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:00:17,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 09:00:17,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:00:17,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:00:17,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:00:17,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:00:17,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 09:00:17,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:00:17,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-09-25 09:00:17,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:00:17,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:00:17,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 09:00:17,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:00:17,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 09:00:17,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:00:17,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-25 09:00:17,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:00:17,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:00:17,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:00:17,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 09:00:17,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:00:17,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 09:00:17,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:00:17,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:00:17,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 09:00:17,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:00:17,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 09:00:17,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:00:18,001 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 09:00:18,001 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [22181228] [2020-09-25 09:00:18,001 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:00:18,001 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-25 09:00:18,002 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69717013] [2020-09-25 09:00:18,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-25 09:00:18,002 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:00:18,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-25 09:00:18,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=375, Unknown=0, NotChecked=0, Total=420 [2020-09-25 09:00:18,003 INFO L87 Difference]: Start difference. First operand 193 states and 217 transitions. Second operand 21 states.