/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-01-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:35:30,283 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:35:30,288 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:35:30,334 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:35:30,334 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:35:30,336 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:35:30,337 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:35:30,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:35:30,341 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:35:30,342 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:35:30,343 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:35:30,344 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:35:30,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:35:30,346 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:35:30,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:35:30,348 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:35:30,349 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:35:30,350 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:35:30,352 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:35:30,354 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:35:30,356 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:35:30,357 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:35:30,358 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:35:30,359 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:35:30,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:35:30,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:35:30,362 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:35:30,363 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:35:30,364 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:35:30,365 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:35:30,365 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:35:30,366 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:35:30,367 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:35:30,368 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:35:30,369 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:35:30,369 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:35:30,370 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:35:30,370 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:35:30,370 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:35:30,371 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:35:30,372 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:35:30,373 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 14:35:30,402 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:35:30,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:35:30,403 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:35:30,405 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:35:30,405 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:35:30,406 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:35:30,406 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:35:30,406 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:35:30,406 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:35:30,406 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:35:30,407 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:35:30,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:35:30,407 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:35:30,407 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:35:30,407 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:35:30,409 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:35:30,409 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:35:30,409 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:35:30,410 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:35:30,410 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:35:30,410 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:35:30,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:35:30,411 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:35:30,411 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:35:30,411 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:35:30,411 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:35:30,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:35:30,412 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:35:30,412 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:35:30,412 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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-09-25 14:35:30,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:35:30,881 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:35:30,887 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:35:30,889 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:35:30,890 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:35:30,891 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-01-1.i [2020-09-25 14:35:30,988 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1e4822083/b932f2f7188b4358a851ca4ca865dfd4/FLAG78c0f76a4 [2020-09-25 14:35:31,716 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:35:31,717 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/dll-01-1.i [2020-09-25 14:35:31,742 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1e4822083/b932f2f7188b4358a851ca4ca865dfd4/FLAG78c0f76a4 [2020-09-25 14:35:31,885 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1e4822083/b932f2f7188b4358a851ca4ca865dfd4 [2020-09-25 14:35:31,897 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:35:31,902 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:35:31,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:35:31,904 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:35:31,909 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:35:31,910 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:35:31" (1/1) ... [2020-09-25 14:35:31,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1edca977 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:35:31, skipping insertion in model container [2020-09-25 14:35:31,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:35:31" (1/1) ... [2020-09-25 14:35:31,924 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:35:31,980 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:35:32,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:35:32,584 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:35:32,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:35:32,693 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:35:32,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:35:32 WrapperNode [2020-09-25 14:35:32,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:35:32,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:35:32,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:35:32,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:35:32,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:35:32" (1/1) ... [2020-09-25 14:35:32,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:35:32" (1/1) ... [2020-09-25 14:35:32,735 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:35:32" (1/1) ... [2020-09-25 14:35:32,736 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:35:32" (1/1) ... [2020-09-25 14:35:32,755 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:35:32" (1/1) ... [2020-09-25 14:35:32,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:35:32" (1/1) ... [2020-09-25 14:35:32,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:35:32" (1/1) ... [2020-09-25 14:35:32,790 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:35:32,791 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:35:32,794 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:35:32,794 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:35:32,798 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:35:32" (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 14:35:32,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:35:32,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:35:32,876 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:35:32,876 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 14:35:32,877 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 14:35:32,877 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 14:35:32,877 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 14:35:32,877 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 14:35:32,877 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 14:35:32,878 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 14:35:32,878 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 14:35:32,878 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 14:35:32,878 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 14:35:32,878 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 14:35:32,879 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 14:35:32,879 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 14:35:32,879 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 14:35:32,879 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 14:35:32,879 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 14:35:32,880 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 14:35:32,880 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 14:35:32,880 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 14:35:32,880 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 14:35:32,881 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 14:35:32,881 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 14:35:32,881 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 14:35:32,881 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 14:35:32,881 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 14:35:32,881 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 14:35:32,882 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 14:35:32,882 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 14:35:32,882 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 14:35:32,882 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 14:35:32,882 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 14:35:32,882 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 14:35:32,882 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 14:35:32,883 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 14:35:32,883 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 14:35:32,883 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 14:35:32,883 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 14:35:32,883 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 14:35:32,883 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 14:35:32,883 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 14:35:32,884 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 14:35:32,884 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 14:35:32,884 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 14:35:32,884 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 14:35:32,884 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 14:35:32,884 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 14:35:32,885 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 14:35:32,885 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 14:35:32,885 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 14:35:32,885 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 14:35:32,885 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:35:32,885 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 14:35:32,886 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 14:35:32,886 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:35:32,886 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 14:35:32,886 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 14:35:32,886 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 14:35:32,886 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 14:35:32,887 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 14:35:32,887 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 14:35:32,887 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 14:35:32,887 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 14:35:32,887 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 14:35:32,887 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 14:35:32,888 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 14:35:32,888 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 14:35:32,888 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 14:35:32,888 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 14:35:32,888 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 14:35:32,889 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 14:35:32,889 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 14:35:32,889 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 14:35:32,889 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 14:35:32,889 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 14:35:32,889 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 14:35:32,890 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 14:35:32,890 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 14:35:32,890 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 14:35:32,890 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 14:35:32,890 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 14:35:32,890 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 14:35:32,891 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 14:35:32,891 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 14:35:32,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 14:35:32,891 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 14:35:32,891 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 14:35:32,891 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 14:35:32,892 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 14:35:32,892 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 14:35:32,892 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 14:35:32,892 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 14:35:32,892 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 14:35:32,892 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 14:35:32,893 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 14:35:32,893 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 14:35:32,893 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 14:35:32,893 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 14:35:32,893 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 14:35:32,893 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 14:35:32,894 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 14:35:32,894 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 14:35:32,894 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 14:35:32,894 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 14:35:32,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:35:32,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:35:32,894 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:35:32,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 14:35:32,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:35:32,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:35:32,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:35:32,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:35:32,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:35:33,750 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:35:33,750 INFO L295 CfgBuilder]: Removed 30 assume(true) statements. [2020-09-25 14:35:33,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:35:33 BoogieIcfgContainer [2020-09-25 14:35:33,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:35:33,760 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:35:33,760 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:35:33,764 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:35:33,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:35:31" (1/3) ... [2020-09-25 14:35:33,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@360e110d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:35:33, skipping insertion in model container [2020-09-25 14:35:33,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:35:32" (2/3) ... [2020-09-25 14:35:33,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@360e110d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:35:33, skipping insertion in model container [2020-09-25 14:35:33,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:35:33" (3/3) ... [2020-09-25 14:35:33,769 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-01-1.i [2020-09-25 14:35:33,783 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:35:33,795 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2020-09-25 14:35:33,820 INFO L251 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2020-09-25 14:35:33,857 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:35:33,857 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:35:33,857 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:35:33,858 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:35:33,858 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:35:33,858 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:35:33,858 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:35:33,858 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:35:33,892 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states. [2020-09-25 14:35:33,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-25 14:35:33,902 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:35:33,903 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:35:33,904 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:35:33,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:35:33,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1409190174, now seen corresponding path program 1 times [2020-09-25 14:35:33,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:35:33,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [226377300] [2020-09-25 14:35:33,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:35:34,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:34,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:34,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:34,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 14:35:34,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:35:34,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-09-25 14:35:34,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:34,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:34,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 14:35:34,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 14:35:34,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 14:35:34,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 14:35:34,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:35:34,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:34,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:34,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:34,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:35:34,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:35:34,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 14:35:34,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:34,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:34,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:35:34,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:35:34,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:35:34,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:35:34,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:35:34,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [226377300] [2020-09-25 14:35:34,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:35:34,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 14:35:34,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205523128] [2020-09-25 14:35:34,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 14:35:34,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:35:34,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 14:35:34,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:35:34,521 INFO L87 Difference]: Start difference. First operand 171 states. Second operand 5 states. [2020-09-25 14:35:34,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:35:34,976 INFO L93 Difference]: Finished difference Result 359 states and 475 transitions. [2020-09-25 14:35:34,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:35:34,978 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-25 14:35:34,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:35:34,995 INFO L225 Difference]: With dead ends: 359 [2020-09-25 14:35:34,995 INFO L226 Difference]: Without dead ends: 194 [2020-09-25 14:35:35,001 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:35:35,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-09-25 14:35:35,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 164. [2020-09-25 14:35:35,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-09-25 14:35:35,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 173 transitions. [2020-09-25 14:35:35,069 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 173 transitions. Word has length 13 [2020-09-25 14:35:35,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:35:35,070 INFO L479 AbstractCegarLoop]: Abstraction has 164 states and 173 transitions. [2020-09-25 14:35:35,070 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 14:35:35,070 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 173 transitions. [2020-09-25 14:35:35,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-25 14:35:35,071 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:35:35,071 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:35:35,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:35:35,072 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:35:35,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:35:35,073 INFO L82 PathProgramCache]: Analyzing trace with hash -1469410252, now seen corresponding path program 1 times [2020-09-25 14:35:35,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:35:35,073 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [929630890] [2020-09-25 14:35:35,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:35:35,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:35,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:35,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:35,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:35,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 14:35:35,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:35:35,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 419 [2020-09-25 14:35:35,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:35,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:35,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:35:35,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-25 14:35:35,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 14:35:35,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:35:35,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:35:35,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:35,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:35,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:35,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:35:35,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:35:35,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:35:35,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:35,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:35,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:35:35,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:35:35,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:35:35,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:35:35,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:35:35,585 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [929630890] [2020-09-25 14:35:35,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:35:35,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 14:35:35,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447142912] [2020-09-25 14:35:35,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 14:35:35,589 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:35:35,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 14:35:35,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:35:35,590 INFO L87 Difference]: Start difference. First operand 164 states and 173 transitions. Second operand 4 states. [2020-09-25 14:35:35,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:35:35,910 INFO L93 Difference]: Finished difference Result 170 states and 179 transitions. [2020-09-25 14:35:35,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 14:35:35,911 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-09-25 14:35:35,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:35:35,914 INFO L225 Difference]: With dead ends: 170 [2020-09-25 14:35:35,914 INFO L226 Difference]: Without dead ends: 165 [2020-09-25 14:35:35,915 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:35:35,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-09-25 14:35:35,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2020-09-25 14:35:35,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-09-25 14:35:35,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 174 transitions. [2020-09-25 14:35:35,930 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 174 transitions. Word has length 25 [2020-09-25 14:35:35,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:35:35,931 INFO L479 AbstractCegarLoop]: Abstraction has 165 states and 174 transitions. [2020-09-25 14:35:35,931 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 14:35:35,931 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 174 transitions. [2020-09-25 14:35:35,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-25 14:35:35,932 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:35:35,932 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:35:35,933 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:35:35,933 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:35:35,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:35:35,934 INFO L82 PathProgramCache]: Analyzing trace with hash -155961871, now seen corresponding path program 1 times [2020-09-25 14:35:35,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:35:35,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [894503015] [2020-09-25 14:35:35,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:35:35,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:35,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:36,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:36,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:36,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 14:35:36,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:35:36,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 306 [2020-09-25 14:35:36,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:36,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:36,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:35:36,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 14:35:36,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:35:36,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:35:36,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:35:36,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:36,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:36,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:36,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:35:36,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:35:36,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:35:36,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:36,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:36,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:35:36,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:35:36,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:35:36,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:35:36,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:35:36,335 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [894503015] [2020-09-25 14:35:36,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:35:36,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 14:35:36,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456493770] [2020-09-25 14:35:36,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 14:35:36,336 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:35:36,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 14:35:36,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:35:36,337 INFO L87 Difference]: Start difference. First operand 165 states and 174 transitions. Second operand 6 states. [2020-09-25 14:35:36,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:35:36,776 INFO L93 Difference]: Finished difference Result 262 states and 277 transitions. [2020-09-25 14:35:36,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 14:35:36,776 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-09-25 14:35:36,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:35:36,779 INFO L225 Difference]: With dead ends: 262 [2020-09-25 14:35:36,779 INFO L226 Difference]: Without dead ends: 257 [2020-09-25 14:35:36,783 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:35:36,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-09-25 14:35:36,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 170. [2020-09-25 14:35:36,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-09-25 14:35:36,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 180 transitions. [2020-09-25 14:35:36,804 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 180 transitions. Word has length 27 [2020-09-25 14:35:36,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:35:36,805 INFO L479 AbstractCegarLoop]: Abstraction has 170 states and 180 transitions. [2020-09-25 14:35:36,805 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 14:35:36,805 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 180 transitions. [2020-09-25 14:35:36,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 14:35:36,806 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:35:36,807 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:35:36,807 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:35:36,807 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:35:36,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:35:36,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1500955686, now seen corresponding path program 1 times [2020-09-25 14:35:36,808 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:35:36,809 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [206946615] [2020-09-25 14:35:36,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:35:36,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:36,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:36,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:36,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:36,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:37,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:37,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 14:35:37,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:35:37,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 515 [2020-09-25 14:35:37,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:37,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:37,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 14:35:37,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 14:35:37,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 14:35:37,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:35:37,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:35:37,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:37,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:37,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:37,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:35:37,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:35:37,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:35:37,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:37,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:37,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:35:37,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:35:37,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:35:37,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:35:37,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:35:37,401 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [206946615] [2020-09-25 14:35:37,401 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:35:37,401 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 14:35:37,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246423769] [2020-09-25 14:35:37,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 14:35:37,402 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:35:37,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 14:35:37,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:35:37,403 INFO L87 Difference]: Start difference. First operand 170 states and 180 transitions. Second operand 5 states. [2020-09-25 14:35:37,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:35:37,769 INFO L93 Difference]: Finished difference Result 200 states and 213 transitions. [2020-09-25 14:35:37,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:35:37,770 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-09-25 14:35:37,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:35:37,772 INFO L225 Difference]: With dead ends: 200 [2020-09-25 14:35:37,772 INFO L226 Difference]: Without dead ends: 166 [2020-09-25 14:35:37,773 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:35:37,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-09-25 14:35:37,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 165. [2020-09-25 14:35:37,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-09-25 14:35:37,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 175 transitions. [2020-09-25 14:35:37,807 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 175 transitions. Word has length 33 [2020-09-25 14:35:37,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:35:37,808 INFO L479 AbstractCegarLoop]: Abstraction has 165 states and 175 transitions. [2020-09-25 14:35:37,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 14:35:37,808 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 175 transitions. [2020-09-25 14:35:37,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 14:35:37,810 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:35:37,810 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:35:37,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:35:37,811 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:35:37,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:35:37,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1216115010, now seen corresponding path program 1 times [2020-09-25 14:35:37,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:35:37,812 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [127748738] [2020-09-25 14:35:37,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:35:37,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:37,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:37,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:39,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:39,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 14:35:39,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:35:39,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1436 [2020-09-25 14:35:39,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:39,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:39,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 14:35:39,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 14:35:39,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 14:35:39,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:35:39,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:35:39,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:39,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:39,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:39,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:35:39,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:35:39,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:35:39,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:39,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:39,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:35:39,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:35:39,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:35:39,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:35:39,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:35:39,439 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [127748738] [2020-09-25 14:35:39,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:35:39,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 14:35:39,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063176489] [2020-09-25 14:35:39,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 14:35:39,441 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:35:39,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 14:35:39,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-25 14:35:39,442 INFO L87 Difference]: Start difference. First operand 165 states and 175 transitions. Second operand 12 states. [2020-09-25 14:35:40,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:35:40,352 INFO L93 Difference]: Finished difference Result 521 states and 551 transitions. [2020-09-25 14:35:40,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 14:35:40,353 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 34 [2020-09-25 14:35:40,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:35:40,355 INFO L225 Difference]: With dead ends: 521 [2020-09-25 14:35:40,355 INFO L226 Difference]: Without dead ends: 391 [2020-09-25 14:35:40,359 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2020-09-25 14:35:40,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2020-09-25 14:35:40,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 157. [2020-09-25 14:35:40,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-09-25 14:35:40,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 166 transitions. [2020-09-25 14:35:40,375 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 166 transitions. Word has length 34 [2020-09-25 14:35:40,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:35:40,375 INFO L479 AbstractCegarLoop]: Abstraction has 157 states and 166 transitions. [2020-09-25 14:35:40,375 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 14:35:40,375 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 166 transitions. [2020-09-25 14:35:40,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-25 14:35:40,380 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:35:40,380 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:35:40,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 14:35:40,381 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:35:40,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:35:40,381 INFO L82 PathProgramCache]: Analyzing trace with hash 125861883, now seen corresponding path program 1 times [2020-09-25 14:35:40,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:35:40,382 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1137010560] [2020-09-25 14:35:40,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:35:40,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:40,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:40,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:40,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:40,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:40,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:42,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:42,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 14:35:42,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:35:42,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2137 [2020-09-25 14:35:42,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:42,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:42,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:35:42,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 14:35:42,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:35:42,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:35:42,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:35:42,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:42,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:42,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:42,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:35:42,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:35:42,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:35:42,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:42,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:42,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:35:42,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:35:42,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:35:42,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:35:42,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:35:42,847 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1137010560] [2020-09-25 14:35:42,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:35:42,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 14:35:42,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465454080] [2020-09-25 14:35:42,850 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 14:35:42,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:35:42,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 14:35:42,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:35:42,851 INFO L87 Difference]: Start difference. First operand 157 states and 166 transitions. Second operand 9 states. [2020-09-25 14:35:43,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:35:43,574 INFO L93 Difference]: Finished difference Result 164 states and 174 transitions. [2020-09-25 14:35:43,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 14:35:43,574 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 40 [2020-09-25 14:35:43,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:35:43,576 INFO L225 Difference]: With dead ends: 164 [2020-09-25 14:35:43,579 INFO L226 Difference]: Without dead ends: 162 [2020-09-25 14:35:43,580 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-09-25 14:35:43,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-09-25 14:35:43,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 155. [2020-09-25 14:35:43,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-09-25 14:35:43,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 164 transitions. [2020-09-25 14:35:43,592 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 164 transitions. Word has length 40 [2020-09-25 14:35:43,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:35:43,592 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 164 transitions. [2020-09-25 14:35:43,593 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 14:35:43,593 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 164 transitions. [2020-09-25 14:35:43,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-09-25 14:35:43,598 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:35:43,599 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:35:43,599 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 14:35:43,599 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:35:43,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:35:43,601 INFO L82 PathProgramCache]: Analyzing trace with hash 682713107, now seen corresponding path program 1 times [2020-09-25 14:35:43,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:35:43,602 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1403990160] [2020-09-25 14:35:43,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:35:43,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:43,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:43,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:43,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:43,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:43,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:44,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:44,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 14:35:44,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:35:44,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 543 [2020-09-25 14:35:44,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:44,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:44,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:35:44,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 14:35:44,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 14:35:44,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:35:44,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:35:44,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:44,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:44,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:44,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:35:44,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:35:44,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:35:44,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:44,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:44,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:35:44,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:35:44,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:35:44,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:35:44,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:35:44,324 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1403990160] [2020-09-25 14:35:44,324 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:35:44,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 14:35:44,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568709665] [2020-09-25 14:35:44,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 14:35:44,326 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:35:44,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 14:35:44,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:35:44,326 INFO L87 Difference]: Start difference. First operand 155 states and 164 transitions. Second operand 9 states. [2020-09-25 14:35:45,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:35:45,011 INFO L93 Difference]: Finished difference Result 334 states and 358 transitions. [2020-09-25 14:35:45,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 14:35:45,012 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 41 [2020-09-25 14:35:45,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:35:45,014 INFO L225 Difference]: With dead ends: 334 [2020-09-25 14:35:45,014 INFO L226 Difference]: Without dead ends: 269 [2020-09-25 14:35:45,015 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2020-09-25 14:35:45,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-09-25 14:35:45,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 172. [2020-09-25 14:35:45,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-09-25 14:35:45,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 182 transitions. [2020-09-25 14:35:45,024 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 182 transitions. Word has length 41 [2020-09-25 14:35:45,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:35:45,024 INFO L479 AbstractCegarLoop]: Abstraction has 172 states and 182 transitions. [2020-09-25 14:35:45,024 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 14:35:45,025 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 182 transitions. [2020-09-25 14:35:45,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-25 14:35:45,026 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:35:45,026 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:35:45,026 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 14:35:45,026 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:35:45,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:35:45,027 INFO L82 PathProgramCache]: Analyzing trace with hash 654436304, now seen corresponding path program 1 times [2020-09-25 14:35:45,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:35:45,027 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1704245867] [2020-09-25 14:35:45,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:35:45,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:45,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:45,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:45,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 14:35:45,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:35:45,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 14:35:45,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:45,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:45,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:35:45,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-25 14:35:45,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:35:45,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:35:45,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:35:45,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:45,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:45,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:45,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:35:45,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:35:45,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:35:45,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:45,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:45,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:35:45,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:35:45,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:35:45,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:35:45,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:35:45,146 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1704245867] [2020-09-25 14:35:45,146 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:35:45,146 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 14:35:45,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135018977] [2020-09-25 14:35:45,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 14:35:45,148 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:35:45,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 14:35:45,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:35:45,149 INFO L87 Difference]: Start difference. First operand 172 states and 182 transitions. Second operand 4 states. [2020-09-25 14:35:45,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:35:45,364 INFO L93 Difference]: Finished difference Result 212 states and 226 transitions. [2020-09-25 14:35:45,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 14:35:45,365 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2020-09-25 14:35:45,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:35:45,366 INFO L225 Difference]: With dead ends: 212 [2020-09-25 14:35:45,366 INFO L226 Difference]: Without dead ends: 210 [2020-09-25 14:35:45,369 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:35:45,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-09-25 14:35:45,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 174. [2020-09-25 14:35:45,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-09-25 14:35:45,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 185 transitions. [2020-09-25 14:35:45,379 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 185 transitions. Word has length 43 [2020-09-25 14:35:45,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:35:45,380 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 185 transitions. [2020-09-25 14:35:45,380 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 14:35:45,380 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 185 transitions. [2020-09-25 14:35:45,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-25 14:35:45,386 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:35:45,386 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:35:45,386 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 14:35:45,387 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:35:45,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:35:45,388 INFO L82 PathProgramCache]: Analyzing trace with hash -2027132131, now seen corresponding path program 1 times [2020-09-25 14:35:45,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:35:45,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1987357408] [2020-09-25 14:35:45,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:35:45,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:45,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:45,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:45,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:45,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:46,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:46,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 14:35:46,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:35:46,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 859 [2020-09-25 14:35:46,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:46,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:46,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:35:46,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 14:35:46,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 14:35:46,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:35:46,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:35:46,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:46,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:46,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:46,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:35:46,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:35:46,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 14:35:46,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:46,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:46,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:35:46,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:35:46,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:35:46,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:35:46,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:35:46,371 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1987357408] [2020-09-25 14:35:46,371 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:35:46,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 14:35:46,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127540516] [2020-09-25 14:35:46,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:35:46,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:35:46,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:35:46,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:35:46,374 INFO L87 Difference]: Start difference. First operand 174 states and 185 transitions. Second operand 7 states. [2020-09-25 14:35:46,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:35:46,987 INFO L93 Difference]: Finished difference Result 370 states and 396 transitions. [2020-09-25 14:35:46,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 14:35:46,987 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 47 [2020-09-25 14:35:46,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:35:46,989 INFO L225 Difference]: With dead ends: 370 [2020-09-25 14:35:46,989 INFO L226 Difference]: Without dead ends: 294 [2020-09-25 14:35:46,990 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-09-25 14:35:46,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-09-25 14:35:47,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 195. [2020-09-25 14:35:47,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-09-25 14:35:47,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 207 transitions. [2020-09-25 14:35:47,003 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 207 transitions. Word has length 47 [2020-09-25 14:35:47,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:35:47,003 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 207 transitions. [2020-09-25 14:35:47,003 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:35:47,003 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 207 transitions. [2020-09-25 14:35:47,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-25 14:35:47,005 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:35:47,005 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:35:47,005 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 14:35:47,005 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:35:47,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:35:47,006 INFO L82 PathProgramCache]: Analyzing trace with hash 1643041774, now seen corresponding path program 1 times [2020-09-25 14:35:47,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:35:47,006 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [343922565] [2020-09-25 14:35:47,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:35:47,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:47,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:47,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:47,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:48,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:50,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:50,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:50,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 14:35:50,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:35:50,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3439 [2020-09-25 14:35:50,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:50,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:50,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:35:50,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-25 14:35:50,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 14:35:50,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:35:50,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:35:50,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:50,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:50,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:50,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:35:50,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:35:50,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:35:50,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:50,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:50,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:35:50,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:35:50,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:35:50,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:35:50,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:35:50,919 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [343922565] [2020-09-25 14:35:50,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:35:50,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 14:35:50,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742945248] [2020-09-25 14:35:50,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 14:35:50,922 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:35:50,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 14:35:50,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:35:50,922 INFO L87 Difference]: Start difference. First operand 195 states and 207 transitions. Second operand 10 states. [2020-09-25 14:35:52,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:35:52,266 INFO L93 Difference]: Finished difference Result 339 states and 361 transitions. [2020-09-25 14:35:52,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 14:35:52,267 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 54 [2020-09-25 14:35:52,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:35:52,269 INFO L225 Difference]: With dead ends: 339 [2020-09-25 14:35:52,269 INFO L226 Difference]: Without dead ends: 336 [2020-09-25 14:35:52,270 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2020-09-25 14:35:52,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2020-09-25 14:35:52,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 202. [2020-09-25 14:35:52,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-09-25 14:35:52,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 215 transitions. [2020-09-25 14:35:52,283 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 215 transitions. Word has length 54 [2020-09-25 14:35:52,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:35:52,283 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 215 transitions. [2020-09-25 14:35:52,283 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 14:35:52,283 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 215 transitions. [2020-09-25 14:35:52,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-25 14:35:52,284 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:35:52,285 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:35:52,285 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 14:35:52,285 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:35:52,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:35:52,286 INFO L82 PathProgramCache]: Analyzing trace with hash -772128015, now seen corresponding path program 1 times [2020-09-25 14:35:52,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:35:52,286 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1541575590] [2020-09-25 14:35:52,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:35:52,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:52,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:52,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:52,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:52,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:53,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:53,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 14:35:53,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:35:53,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 811 [2020-09-25 14:35:53,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:53,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:53,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:35:53,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-09-25 14:35:53,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:35:53,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:35:53,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:35:53,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:53,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:53,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:53,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:35:53,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:35:53,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:35:53,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:53,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:53,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:35:53,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:35:53,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:35:53,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:35:53,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:35:53,213 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1541575590] [2020-09-25 14:35:53,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:35:53,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 14:35:53,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096031534] [2020-09-25 14:35:53,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 14:35:53,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:35:53,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 14:35:53,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:35:53,217 INFO L87 Difference]: Start difference. First operand 202 states and 215 transitions. Second operand 6 states. [2020-09-25 14:35:53,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:35:53,690 INFO L93 Difference]: Finished difference Result 341 states and 364 transitions. [2020-09-25 14:35:53,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 14:35:53,691 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2020-09-25 14:35:53,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:35:53,697 INFO L225 Difference]: With dead ends: 341 [2020-09-25 14:35:53,697 INFO L226 Difference]: Without dead ends: 226 [2020-09-25 14:35:53,698 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:35:53,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-09-25 14:35:53,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 205. [2020-09-25 14:35:53,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-09-25 14:35:53,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 218 transitions. [2020-09-25 14:35:53,711 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 218 transitions. Word has length 54 [2020-09-25 14:35:53,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:35:53,711 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 218 transitions. [2020-09-25 14:35:53,712 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 14:35:53,712 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 218 transitions. [2020-09-25 14:35:53,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-25 14:35:53,713 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:35:53,713 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:35:53,713 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 14:35:53,713 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:35:53,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:35:53,714 INFO L82 PathProgramCache]: Analyzing trace with hash -82626834, now seen corresponding path program 1 times [2020-09-25 14:35:53,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:35:53,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [204391248] [2020-09-25 14:35:53,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:35:53,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:53,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:53,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:53,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:54,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:54,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:54,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-25 14:35:54,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:35:54,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1015 [2020-09-25 14:35:54,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:54,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:54,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:35:54,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 14:35:54,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 14:35:54,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:35:54,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:35:54,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:35:54,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:35:54,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:35:54,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:35:54,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:35:54,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:35:54,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:35:54,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:35:54,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:35:54,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:35:54,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:35:54,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:35:54,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:35:54,843 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [204391248] [2020-09-25 14:35:54,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:35:54,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 14:35:54,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640842980] [2020-09-25 14:35:54,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 14:35:54,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:35:54,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 14:35:54,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:35:54,846 INFO L87 Difference]: Start difference. First operand 205 states and 218 transitions. Second operand 6 states. [2020-09-25 14:35:55,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:35:55,324 INFO L93 Difference]: Finished difference Result 391 states and 417 transitions. [2020-09-25 14:35:55,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 14:35:55,325 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 56 [2020-09-25 14:35:55,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:35:55,327 INFO L225 Difference]: With dead ends: 391 [2020-09-25 14:35:55,327 INFO L226 Difference]: Without dead ends: 265 [2020-09-25 14:35:55,328 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 14:35:55,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-09-25 14:35:55,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 197. [2020-09-25 14:35:55,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-09-25 14:35:55,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 209 transitions. [2020-09-25 14:35:55,347 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 209 transitions. Word has length 56 [2020-09-25 14:35:55,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:35:55,348 INFO L479 AbstractCegarLoop]: Abstraction has 197 states and 209 transitions. [2020-09-25 14:35:55,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 14:35:55,348 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 209 transitions. [2020-09-25 14:35:55,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-25 14:35:55,350 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:35:55,350 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:35:55,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 14:35:55,351 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:35:55,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:35:55,352 INFO L82 PathProgramCache]: Analyzing trace with hash 2002844954, now seen corresponding path program 1 times [2020-09-25 14:35:55,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:35:55,352 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2050494614] [2020-09-25 14:35:55,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:35:55,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 14:35:55,377 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 14:35:55,378 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 14:35:55,404 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 14:35:55,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:35:55 BoogieIcfgContainer [2020-09-25 14:35:55,456 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 14:35:55,463 INFO L168 Benchmark]: Toolchain (without parser) took 23559.67 ms. Allocated memory was 140.5 MB in the beginning and 428.3 MB in the end (delta: 287.8 MB). Free memory was 101.2 MB in the beginning and 161.6 MB in the end (delta: -60.3 MB). Peak memory consumption was 227.5 MB. Max. memory is 7.1 GB. [2020-09-25 14:35:55,464 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.3 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-09-25 14:35:55,465 INFO L168 Benchmark]: CACSL2BoogieTranslator took 790.57 ms. Allocated memory was 140.5 MB in the beginning and 206.0 MB in the end (delta: 65.5 MB). Free memory was 100.8 MB in the beginning and 172.4 MB in the end (delta: -71.6 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2020-09-25 14:35:55,470 INFO L168 Benchmark]: Boogie Preprocessor took 95.76 ms. Allocated memory is still 206.0 MB. Free memory was 172.4 MB in the beginning and 168.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2020-09-25 14:35:55,472 INFO L168 Benchmark]: RCFGBuilder took 967.77 ms. Allocated memory is still 206.0 MB. Free memory was 168.6 MB in the beginning and 106.1 MB in the end (delta: 62.5 MB). Peak memory consumption was 62.5 MB. Max. memory is 7.1 GB. [2020-09-25 14:35:55,477 INFO L168 Benchmark]: TraceAbstraction took 21696.64 ms. Allocated memory was 206.0 MB in the beginning and 428.3 MB in the end (delta: 222.3 MB). Free memory was 105.1 MB in the beginning and 161.6 MB in the end (delta: -56.4 MB). Peak memory consumption was 165.9 MB. Max. memory is 7.1 GB. [2020-09-25 14:35:55,483 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.3 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 790.57 ms. Allocated memory was 140.5 MB in the beginning and 206.0 MB in the end (delta: 65.5 MB). Free memory was 100.8 MB in the beginning and 172.4 MB in the end (delta: -71.6 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 95.76 ms. Allocated memory is still 206.0 MB. Free memory was 172.4 MB in the beginning and 168.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 967.77 ms. Allocated memory is still 206.0 MB. Free memory was 168.6 MB in the beginning and 106.1 MB in the end (delta: 62.5 MB). Peak memory consumption was 62.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21696.64 ms. Allocated memory was 206.0 MB in the beginning and 428.3 MB in the end (delta: 222.3 MB). Free memory was 105.1 MB in the beginning and 161.6 MB in the end (delta: -56.4 MB). Peak memory consumption was 165.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1029]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L992] SLL* list = malloc(sizeof(SLL)); [L993] list->next = ((void*)0) [L994] list->prev = ((void*)0) [L995] COND FALSE !(!(list != ((void*)0))) [L995] COND FALSE !(__VERIFIER_nondet_int()) [L995] list->inner = malloc(sizeof(SLL)) [L995] EXPR list->inner [L995] list->inner->next = ((void*)0) [L995] EXPR list->inner [L995] list->inner->inner = ((void*)0) [L995] EXPR list->inner [L995] EXPR list->inner != ((void*)0) || list->inner == ((void*)0) [L995] COND FALSE !(!(list->inner != ((void*)0) || list->inner == ((void*)0))) [L997] SLL* end = list; [L1000] COND FALSE !(__VERIFIER_nondet_int()) [L1011] end = ((void*)0) [L1012] end = list [L1015] COND FALSE !(!(((void*)0) != end)) [L1017] COND TRUE ((void*)0) != end [L1019] int len = 0; [L1020] EXPR end->inner [L1020] SLL* inner = end->inner; [L1021] COND TRUE ((void*)0) != inner [L1023] COND TRUE len == 0 [L1024] len = 1 [L1027] COND FALSE !(!(((void*)0) != inner)) [L1028] EXPR inner->inner [L1028] COND FALSE !(!(((void*)0) == inner->inner)) [L1029] EXPR inner->next [L1029] COND TRUE !(((void*)0) != inner->next) [L1029] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 171 locations, 13 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 21.5s, OverallIterations: 13, TraceHistogramMax: 1, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1950 SDtfs, 2672 SDslu, 5148 SDs, 0 SdLazy, 3728 SolverSat, 96 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 144 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=205occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 814 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 13.4s InterpolantComputationTime, 525 NumberOfCodeBlocks, 525 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 455 ConstructedInterpolants, 0 QuantifiedInterpolants, 185683 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...