/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=WIDEST --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 03:15:00,739 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:15:00,743 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:15:00,787 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:15:00,788 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:15:00,796 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:15:00,799 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:15:00,803 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:15:00,806 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:15:00,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:15:00,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:15:00,812 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:15:00,812 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:15:00,815 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:15:00,818 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:15:00,820 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:15:00,822 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:15:00,823 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:15:00,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:15:00,834 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:15:00,836 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:15:00,838 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:15:00,839 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:15:00,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:15:00,853 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:15:00,853 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:15:00,853 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:15:00,855 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:15:00,858 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:15:00,859 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:15:00,859 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:15:00,860 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:15:00,864 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:15:00,865 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:15:00,866 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:15:00,866 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:15:00,867 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:15:00,868 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:15:00,868 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:15:00,869 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:15:00,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:15:00,872 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 03:15:00,922 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:15:00,923 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:15:00,925 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:15:00,925 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:15:00,926 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:15:00,926 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:15:00,926 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:15:00,927 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:15:00,927 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:15:00,927 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:15:00,928 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:15:00,928 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:15:00,929 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:15:00,929 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:15:00,929 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:15:00,929 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:15:00,930 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:15:00,930 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:15:00,930 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:15:00,930 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:15:00,930 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:15:00,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:15:00,931 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:15:00,931 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:15:00,931 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:15:00,931 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:15:00,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:15:00,932 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:15:00,932 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:15:00,932 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true; [2020-09-25 03:15:01,427 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:15:01,446 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:15:01,453 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:15:01,456 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:15:01,457 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:15:01,458 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-01-1.i [2020-09-25 03:15:01,539 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0f805355b/9d5280ae37d8417bb028ee62ee54e8d5/FLAG74e8201ff [2020-09-25 03:15:02,177 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:15:02,178 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/dll-01-1.i [2020-09-25 03:15:02,196 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0f805355b/9d5280ae37d8417bb028ee62ee54e8d5/FLAG74e8201ff [2020-09-25 03:15:02,415 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0f805355b/9d5280ae37d8417bb028ee62ee54e8d5 [2020-09-25 03:15:02,429 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:15:02,435 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:15:02,437 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:15:02,437 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:15:02,441 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:15:02,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:15:02" (1/1) ... [2020-09-25 03:15:02,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dadf5b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:15:02, skipping insertion in model container [2020-09-25 03:15:02,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:15:02" (1/1) ... [2020-09-25 03:15:02,457 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:15:02,551 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:15:03,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:15:03,052 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:15:03,111 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:15:03,183 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:15:03,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:15:03 WrapperNode [2020-09-25 03:15:03,185 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:15:03,186 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:15:03,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:15:03,186 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:15:03,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:15:03" (1/1) ... [2020-09-25 03:15:03,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:15:03" (1/1) ... [2020-09-25 03:15:03,222 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:15:03" (1/1) ... [2020-09-25 03:15:03,222 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:15:03" (1/1) ... [2020-09-25 03:15:03,246 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:15:03" (1/1) ... [2020-09-25 03:15:03,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:15:03" (1/1) ... [2020-09-25 03:15:03,263 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:15:03" (1/1) ... [2020-09-25 03:15:03,275 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:15:03,275 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:15:03,275 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:15:03,276 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:15:03,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:15:03" (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 03:15:03,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:15:03,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:15:03,357 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:15:03,357 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 03:15:03,358 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 03:15:03,358 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 03:15:03,358 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 03:15:03,358 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 03:15:03,358 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 03:15:03,359 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 03:15:03,359 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 03:15:03,359 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 03:15:03,359 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 03:15:03,359 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 03:15:03,360 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 03:15:03,360 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 03:15:03,360 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 03:15:03,360 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 03:15:03,360 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 03:15:03,361 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 03:15:03,361 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 03:15:03,361 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 03:15:03,361 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 03:15:03,361 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 03:15:03,361 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 03:15:03,362 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 03:15:03,362 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 03:15:03,362 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 03:15:03,362 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 03:15:03,362 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 03:15:03,362 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 03:15:03,363 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 03:15:03,363 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 03:15:03,363 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 03:15:03,363 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 03:15:03,363 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 03:15:03,363 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 03:15:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 03:15:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 03:15:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 03:15:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 03:15:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 03:15:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 03:15:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 03:15:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 03:15:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 03:15:03,365 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 03:15:03,365 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 03:15:03,365 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 03:15:03,365 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 03:15:03,365 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 03:15:03,365 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 03:15:03,366 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 03:15:03,366 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 03:15:03,366 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 03:15:03,366 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 03:15:03,366 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 03:15:03,367 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 03:15:03,367 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 03:15:03,367 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 03:15:03,367 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 03:15:03,367 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 03:15:03,367 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 03:15:03,367 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 03:15:03,368 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 03:15:03,368 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 03:15:03,368 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 03:15:03,368 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 03:15:03,368 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 03:15:03,368 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 03:15:03,369 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 03:15:03,369 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 03:15:03,369 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 03:15:03,369 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 03:15:03,369 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 03:15:03,369 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 03:15:03,370 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 03:15:03,370 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 03:15:03,370 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 03:15:03,370 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 03:15:03,370 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 03:15:03,370 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 03:15:03,371 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 03:15:03,371 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 03:15:03,371 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 03:15:03,371 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 03:15:03,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 03:15:03,371 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 03:15:03,371 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 03:15:03,371 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 03:15:03,371 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 03:15:03,372 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 03:15:03,372 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 03:15:03,372 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 03:15:03,372 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 03:15:03,372 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 03:15:03,372 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 03:15:03,372 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 03:15:03,372 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 03:15:03,372 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 03:15:03,373 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 03:15:03,373 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 03:15:03,373 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 03:15:03,373 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 03:15:03,373 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 03:15:03,373 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 03:15:03,373 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 03:15:03,374 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:15:03,374 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:15:03,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 03:15:03,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 03:15:03,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 03:15:03,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 03:15:03,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:15:03,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:15:04,218 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:15:04,218 INFO L295 CfgBuilder]: Removed 30 assume(true) statements. [2020-09-25 03:15:04,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:15:04 BoogieIcfgContainer [2020-09-25 03:15:04,232 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:15:04,234 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:15:04,234 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:15:04,238 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:15:04,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:15:02" (1/3) ... [2020-09-25 03:15:04,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@460b2b2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:15:04, skipping insertion in model container [2020-09-25 03:15:04,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:15:03" (2/3) ... [2020-09-25 03:15:04,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@460b2b2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:15:04, skipping insertion in model container [2020-09-25 03:15:04,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:15:04" (3/3) ... [2020-09-25 03:15:04,246 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-01-1.i [2020-09-25 03:15:04,260 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:15:04,271 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2020-09-25 03:15:04,294 INFO L251 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2020-09-25 03:15:04,330 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:15:04,330 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:15:04,330 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:15:04,330 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:15:04,331 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:15:04,331 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:15:04,331 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:15:04,331 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:15:04,364 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states. [2020-09-25 03:15:04,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-25 03:15:04,373 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:15:04,374 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:15:04,375 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 03:15:04,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:15:04,384 INFO L82 PathProgramCache]: Analyzing trace with hash -1409190174, now seen corresponding path program 1 times [2020-09-25 03:15:04,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:15:04,395 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [19712045] [2020-09-25 03:15:04,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:15:04,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:04,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:04,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:04,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 03:15:04,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:15:04,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-09-25 03:15:04,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:04,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:15:04,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 03:15:04,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 03:15:04,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 03:15:04,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:15:04,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:04,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:04,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:04,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:15:04,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:15:04,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 03:15:04,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:04,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:15:04,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:15:04,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:15:04,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:15:05,002 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 03:15:05,004 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [19712045] [2020-09-25 03:15:05,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:15:05,007 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 03:15:05,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852871765] [2020-09-25 03:15:05,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 03:15:05,016 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:15:05,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 03:15:05,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 03:15:05,038 INFO L87 Difference]: Start difference. First operand 171 states. Second operand 5 states. [2020-09-25 03:15:05,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:15:05,435 INFO L93 Difference]: Finished difference Result 359 states and 475 transitions. [2020-09-25 03:15:05,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 03:15:05,437 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-25 03:15:05,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:15:05,454 INFO L225 Difference]: With dead ends: 359 [2020-09-25 03:15:05,454 INFO L226 Difference]: Without dead ends: 194 [2020-09-25 03:15:05,461 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 03:15:05,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-09-25 03:15:05,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 164. [2020-09-25 03:15:05,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-09-25 03:15:05,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 173 transitions. [2020-09-25 03:15:05,531 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 173 transitions. Word has length 13 [2020-09-25 03:15:05,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:15:05,531 INFO L479 AbstractCegarLoop]: Abstraction has 164 states and 173 transitions. [2020-09-25 03:15:05,531 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 03:15:05,532 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 173 transitions. [2020-09-25 03:15:05,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-25 03:15:05,533 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:15:05,533 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 03:15:05,533 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:15:05,534 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 03:15:05,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:15:05,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1469410252, now seen corresponding path program 1 times [2020-09-25 03:15:05,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:15:05,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1875267665] [2020-09-25 03:15:05,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:15:05,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:05,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:05,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:05,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:05,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 03:15:05,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:15:05,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 343 [2020-09-25 03:15:05,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:05,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:15:05,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 03:15:05,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:15:05,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:15:06,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:15:06,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:06,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:06,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:06,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:15:06,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:15:06,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 03:15:06,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:06,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:15:06,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:15:06,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:15:06,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:15:06,035 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 03:15:06,036 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1875267665] [2020-09-25 03:15:06,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:15:06,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 03:15:06,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916397825] [2020-09-25 03:15:06,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 03:15:06,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:15:06,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 03:15:06,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 03:15:06,040 INFO L87 Difference]: Start difference. First operand 164 states and 173 transitions. Second operand 6 states. [2020-09-25 03:15:06,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:15:06,503 INFO L93 Difference]: Finished difference Result 392 states and 414 transitions. [2020-09-25 03:15:06,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 03:15:06,504 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-09-25 03:15:06,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:15:06,507 INFO L225 Difference]: With dead ends: 392 [2020-09-25 03:15:06,507 INFO L226 Difference]: Without dead ends: 259 [2020-09-25 03:15:06,509 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 03:15:06,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-09-25 03:15:06,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 167. [2020-09-25 03:15:06,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-09-25 03:15:06,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 176 transitions. [2020-09-25 03:15:06,527 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 176 transitions. Word has length 25 [2020-09-25 03:15:06,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:15:06,528 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 176 transitions. [2020-09-25 03:15:06,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 03:15:06,528 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 176 transitions. [2020-09-25 03:15:06,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-25 03:15:06,529 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:15:06,529 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 03:15:06,529 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:15:06,530 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 03:15:06,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:15:06,530 INFO L82 PathProgramCache]: Analyzing trace with hash -155961871, now seen corresponding path program 1 times [2020-09-25 03:15:06,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:15:06,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1311389842] [2020-09-25 03:15:06,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:15:06,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:06,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:06,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:06,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:06,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 03:15:06,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:15:06,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 328 [2020-09-25 03:15:06,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:06,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:15:06,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 03:15:06,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:15:06,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:15:06,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:15:06,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:06,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:06,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:06,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:15:06,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:15:06,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:15:06,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:06,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:15:06,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:15:06,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:15:06,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:15:06,950 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 03:15:06,950 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1311389842] [2020-09-25 03:15:06,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:15:06,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 03:15:06,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417404622] [2020-09-25 03:15:06,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 03:15:06,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:15:06,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 03:15:06,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 03:15:06,953 INFO L87 Difference]: Start difference. First operand 167 states and 176 transitions. Second operand 6 states. [2020-09-25 03:15:07,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:15:07,349 INFO L93 Difference]: Finished difference Result 260 states and 275 transitions. [2020-09-25 03:15:07,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 03:15:07,350 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-09-25 03:15:07,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:15:07,352 INFO L225 Difference]: With dead ends: 260 [2020-09-25 03:15:07,352 INFO L226 Difference]: Without dead ends: 255 [2020-09-25 03:15:07,353 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 03:15:07,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-09-25 03:15:07,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 170. [2020-09-25 03:15:07,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-09-25 03:15:07,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 179 transitions. [2020-09-25 03:15:07,366 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 179 transitions. Word has length 27 [2020-09-25 03:15:07,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:15:07,366 INFO L479 AbstractCegarLoop]: Abstraction has 170 states and 179 transitions. [2020-09-25 03:15:07,366 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 03:15:07,366 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 179 transitions. [2020-09-25 03:15:07,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 03:15:07,368 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:15:07,368 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 03:15:07,368 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:15:07,368 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 03:15:07,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:15:07,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1216115010, now seen corresponding path program 1 times [2020-09-25 03:15:07,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:15:07,370 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2097838940] [2020-09-25 03:15:07,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:15:07,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:07,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:07,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:08,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:08,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 03:15:08,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:15:08,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1552 [2020-09-25 03:15:08,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:08,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:15:08,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 03:15:08,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 03:15:08,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:15:09,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:15:09,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:09,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:09,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:09,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:15:09,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:15:09,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:15:09,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:09,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:15:09,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:15:09,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:15:09,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:15:09,137 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 03:15:09,139 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2097838940] [2020-09-25 03:15:09,139 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:15:09,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 03:15:09,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173552183] [2020-09-25 03:15:09,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 03:15:09,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:15:09,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 03:15:09,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-25 03:15:09,142 INFO L87 Difference]: Start difference. First operand 170 states and 179 transitions. Second operand 12 states. [2020-09-25 03:15:10,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:15:10,152 INFO L93 Difference]: Finished difference Result 540 states and 569 transitions. [2020-09-25 03:15:10,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 03:15:10,153 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 34 [2020-09-25 03:15:10,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:15:10,156 INFO L225 Difference]: With dead ends: 540 [2020-09-25 03:15:10,156 INFO L226 Difference]: Without dead ends: 405 [2020-09-25 03:15:10,161 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 03:15:10,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2020-09-25 03:15:10,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 162. [2020-09-25 03:15:10,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-09-25 03:15:10,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 170 transitions. [2020-09-25 03:15:10,188 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 170 transitions. Word has length 34 [2020-09-25 03:15:10,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:15:10,189 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 170 transitions. [2020-09-25 03:15:10,189 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 03:15:10,189 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 170 transitions. [2020-09-25 03:15:10,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 03:15:10,190 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:15:10,191 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] [2020-09-25 03:15:10,191 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 03:15:10,191 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 03:15:10,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:15:10,191 INFO L82 PathProgramCache]: Analyzing trace with hash -820684573, now seen corresponding path program 1 times [2020-09-25 03:15:10,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:15:10,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1093575005] [2020-09-25 03:15:10,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:15:10,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:10,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:10,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:10,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:10,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-25 03:15:10,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:15:10,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-09-25 03:15:10,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:10,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:15:10,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 03:15:10,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 03:15:10,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:15:10,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:15:10,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:10,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:10,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:10,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:15:10,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:15:10,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 03:15:10,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:10,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:15:10,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:15:10,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:15:10,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:15:10,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:15:10,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1093575005] [2020-09-25 03:15:10,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:15:10,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 03:15:10,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045338618] [2020-09-25 03:15:10,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 03:15:10,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:15:10,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 03:15:10,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 03:15:10,509 INFO L87 Difference]: Start difference. First operand 162 states and 170 transitions. Second operand 6 states. [2020-09-25 03:15:10,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:15:10,812 INFO L93 Difference]: Finished difference Result 270 states and 284 transitions. [2020-09-25 03:15:10,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 03:15:10,814 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-09-25 03:15:10,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:15:10,816 INFO L225 Difference]: With dead ends: 270 [2020-09-25 03:15:10,816 INFO L226 Difference]: Without dead ends: 238 [2020-09-25 03:15:10,817 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 03:15:10,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-09-25 03:15:10,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 161. [2020-09-25 03:15:10,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-09-25 03:15:10,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 169 transitions. [2020-09-25 03:15:10,829 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 169 transitions. Word has length 35 [2020-09-25 03:15:10,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:15:10,829 INFO L479 AbstractCegarLoop]: Abstraction has 161 states and 169 transitions. [2020-09-25 03:15:10,829 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 03:15:10,830 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 169 transitions. [2020-09-25 03:15:10,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-25 03:15:10,839 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:15:10,839 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] [2020-09-25 03:15:10,840 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 03:15:10,840 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 03:15:10,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:15:10,841 INFO L82 PathProgramCache]: Analyzing trace with hash -2091807586, now seen corresponding path program 1 times [2020-09-25 03:15:10,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:15:10,842 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [42182965] [2020-09-25 03:15:10,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:15:10,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:10,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:11,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:11,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:12,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:12,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 03:15:12,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:15:12,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1281 [2020-09-25 03:15:12,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:12,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:15:12,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 03:15:12,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 03:15:12,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:15:12,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:15:12,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:12,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:12,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:12,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:15:12,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:15:12,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:15:12,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:12,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:15:12,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:15:12,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:15:12,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:15:12,288 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 03:15:12,289 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [42182965] [2020-09-25 03:15:12,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:15:12,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 03:15:12,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822742533] [2020-09-25 03:15:12,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 03:15:12,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:15:12,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 03:15:12,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 03:15:12,292 INFO L87 Difference]: Start difference. First operand 161 states and 169 transitions. Second operand 10 states. [2020-09-25 03:15:12,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:15:12,782 INFO L93 Difference]: Finished difference Result 232 states and 244 transitions. [2020-09-25 03:15:12,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 03:15:12,782 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 42 [2020-09-25 03:15:12,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:15:12,784 INFO L225 Difference]: With dead ends: 232 [2020-09-25 03:15:12,784 INFO L226 Difference]: Without dead ends: 228 [2020-09-25 03:15:12,785 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2020-09-25 03:15:12,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-09-25 03:15:12,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 157. [2020-09-25 03:15:12,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-09-25 03:15:12,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 165 transitions. [2020-09-25 03:15:12,792 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 165 transitions. Word has length 42 [2020-09-25 03:15:12,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:15:12,792 INFO L479 AbstractCegarLoop]: Abstraction has 157 states and 165 transitions. [2020-09-25 03:15:12,793 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 03:15:12,793 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 165 transitions. [2020-09-25 03:15:12,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-25 03:15:12,794 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:15:12,794 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 03:15:12,794 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 03:15:12,794 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 03:15:12,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:15:12,795 INFO L82 PathProgramCache]: Analyzing trace with hash 654436304, now seen corresponding path program 1 times [2020-09-25 03:15:12,795 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:15:12,796 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [618664483] [2020-09-25 03:15:12,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:15:12,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:12,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:12,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:12,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 03:15:12,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:15:12,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 03:15:12,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:12,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:15:12,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-25 03:15:12,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:15:12,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:15:12,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:15:12,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:12,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:12,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:12,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:15:12,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:15:12,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:15:12,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:12,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:15:12,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:15:12,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:15:12,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:15:12,920 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 03:15:12,920 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [618664483] [2020-09-25 03:15:12,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:15:12,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 03:15:12,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000531372] [2020-09-25 03:15:12,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 03:15:12,922 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:15:12,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 03:15:12,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 03:15:12,923 INFO L87 Difference]: Start difference. First operand 157 states and 165 transitions. Second operand 4 states. [2020-09-25 03:15:13,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:15:13,137 INFO L93 Difference]: Finished difference Result 199 states and 211 transitions. [2020-09-25 03:15:13,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 03:15:13,137 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2020-09-25 03:15:13,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:15:13,139 INFO L225 Difference]: With dead ends: 199 [2020-09-25 03:15:13,139 INFO L226 Difference]: Without dead ends: 197 [2020-09-25 03:15:13,139 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 03:15:13,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-09-25 03:15:13,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 159. [2020-09-25 03:15:13,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-09-25 03:15:13,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 168 transitions. [2020-09-25 03:15:13,146 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 168 transitions. Word has length 43 [2020-09-25 03:15:13,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:15:13,146 INFO L479 AbstractCegarLoop]: Abstraction has 159 states and 168 transitions. [2020-09-25 03:15:13,147 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 03:15:13,147 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 168 transitions. [2020-09-25 03:15:13,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-25 03:15:13,148 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:15:13,148 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] [2020-09-25 03:15:13,148 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 03:15:13,148 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 03:15:13,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:15:13,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1847672787, now seen corresponding path program 1 times [2020-09-25 03:15:13,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:15:13,149 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [676811987] [2020-09-25 03:15:13,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:15:13,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:13,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:13,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:13,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:13,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:14,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:14,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-25 03:15:14,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:15:14,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 851 [2020-09-25 03:15:14,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:14,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:15:14,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 03:15:14,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 03:15:14,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:15:14,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:15:14,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:14,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:14,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:14,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:15:14,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:15:14,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:15:14,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:14,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:15:14,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:15:14,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:15:14,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:15:14,255 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 03:15:14,256 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [676811987] [2020-09-25 03:15:14,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:15:14,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 03:15:14,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100827178] [2020-09-25 03:15:14,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 03:15:14,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:15:14,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 03:15:14,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 03:15:14,260 INFO L87 Difference]: Start difference. First operand 159 states and 168 transitions. Second operand 7 states. [2020-09-25 03:15:14,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:15:14,955 INFO L93 Difference]: Finished difference Result 350 states and 373 transitions. [2020-09-25 03:15:14,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 03:15:14,956 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2020-09-25 03:15:14,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:15:14,958 INFO L225 Difference]: With dead ends: 350 [2020-09-25 03:15:14,958 INFO L226 Difference]: Without dead ends: 281 [2020-09-25 03:15:14,959 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-09-25 03:15:14,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-09-25 03:15:14,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 178. [2020-09-25 03:15:14,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-09-25 03:15:14,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 188 transitions. [2020-09-25 03:15:14,972 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 188 transitions. Word has length 45 [2020-09-25 03:15:14,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:15:14,973 INFO L479 AbstractCegarLoop]: Abstraction has 178 states and 188 transitions. [2020-09-25 03:15:14,973 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 03:15:14,973 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 188 transitions. [2020-09-25 03:15:14,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-25 03:15:14,974 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:15:14,975 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:15:14,975 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 03:15:14,975 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 03:15:14,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:15:14,976 INFO L82 PathProgramCache]: Analyzing trace with hash 797256871, now seen corresponding path program 1 times [2020-09-25 03:15:14,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:15:14,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [53186116] [2020-09-25 03:15:14,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:15:14,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:15,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:15,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:15,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:15,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:17,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:17,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-25 03:15:17,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:15:17,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2078 [2020-09-25 03:15:17,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:17,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:15:17,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 03:15:17,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 03:15:17,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:15:17,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:15:17,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:17,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:17,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:17,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:15:17,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:15:17,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:15:17,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:17,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:15:17,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:15:17,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:15:17,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:15:17,255 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 03:15:17,260 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [53186116] [2020-09-25 03:15:17,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:15:17,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 03:15:17,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201925260] [2020-09-25 03:15:17,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 03:15:17,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:15:17,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 03:15:17,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-09-25 03:15:17,263 INFO L87 Difference]: Start difference. First operand 178 states and 188 transitions. Second operand 13 states. [2020-09-25 03:15:18,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:15:18,475 INFO L93 Difference]: Finished difference Result 541 states and 576 transitions. [2020-09-25 03:15:18,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 03:15:18,480 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 50 [2020-09-25 03:15:18,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:15:18,484 INFO L225 Difference]: With dead ends: 541 [2020-09-25 03:15:18,484 INFO L226 Difference]: Without dead ends: 472 [2020-09-25 03:15:18,485 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=145, Invalid=407, Unknown=0, NotChecked=0, Total=552 [2020-09-25 03:15:18,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2020-09-25 03:15:18,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 195. [2020-09-25 03:15:18,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-09-25 03:15:18,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 207 transitions. [2020-09-25 03:15:18,495 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 207 transitions. Word has length 50 [2020-09-25 03:15:18,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:15:18,496 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 207 transitions. [2020-09-25 03:15:18,497 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 03:15:18,497 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 207 transitions. [2020-09-25 03:15:18,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-25 03:15:18,498 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:15:18,498 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 03:15:18,498 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 03:15:18,498 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 03:15:18,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:15:18,499 INFO L82 PathProgramCache]: Analyzing trace with hash 1643041774, now seen corresponding path program 1 times [2020-09-25 03:15:18,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:15:18,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [774549605] [2020-09-25 03:15:18,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:15:18,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:18,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:18,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:19,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:19,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:21,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:22,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:22,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 03:15:22,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 03:15:22,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3577 [2020-09-25 03:15:22,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:22,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:15:22,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 03:15:22,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 03:15:22,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:15:22,473 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 35 [2020-09-25 03:15:22,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:15:22,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:22,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:22,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:22,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:15:22,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:15:22,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:15:22,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:22,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:15:22,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:15:22,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:15:22,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:15:22,702 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 03:15:22,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [774549605] [2020-09-25 03:15:22,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:15:22,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-25 03:15:22,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705530216] [2020-09-25 03:15:22,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 03:15:22,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:15:22,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 03:15:22,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2020-09-25 03:15:22,705 INFO L87 Difference]: Start difference. First operand 195 states and 207 transitions. Second operand 14 states. [2020-09-25 03:15:25,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:15:25,070 INFO L93 Difference]: Finished difference Result 546 states and 579 transitions. [2020-09-25 03:15:25,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-25 03:15:25,071 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 54 [2020-09-25 03:15:25,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:15:25,076 INFO L225 Difference]: With dead ends: 546 [2020-09-25 03:15:25,077 INFO L226 Difference]: Without dead ends: 543 [2020-09-25 03:15:25,078 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=257, Invalid=735, Unknown=0, NotChecked=0, Total=992 [2020-09-25 03:15:25,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2020-09-25 03:15:25,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 198. [2020-09-25 03:15:25,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-09-25 03:15:25,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 210 transitions. [2020-09-25 03:15:25,091 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 210 transitions. Word has length 54 [2020-09-25 03:15:25,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:15:25,091 INFO L479 AbstractCegarLoop]: Abstraction has 198 states and 210 transitions. [2020-09-25 03:15:25,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 03:15:25,091 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 210 transitions. [2020-09-25 03:15:25,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-25 03:15:25,092 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:15:25,092 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 03:15:25,093 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 03:15:25,093 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 03:15:25,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:15:25,093 INFO L82 PathProgramCache]: Analyzing trace with hash 358720869, now seen corresponding path program 1 times [2020-09-25 03:15:25,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:15:25,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1976284640] [2020-09-25 03:15:25,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:15:25,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:25,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:25,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:25,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:25,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:25,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:27,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:27,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 03:15:27,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 03:15:27,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2415 [2020-09-25 03:15:27,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:27,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:15:27,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 03:15:27,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 03:15:27,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:15:27,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:15:27,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:27,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:27,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:27,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:15:27,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:15:27,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:15:27,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:27,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:15:27,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:15:27,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:15:27,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:15:27,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 03:15:27,659 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1976284640] [2020-09-25 03:15:27,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:15:27,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 03:15:27,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119370237] [2020-09-25 03:15:27,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 03:15:27,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:15:27,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 03:15:27,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 03:15:27,662 INFO L87 Difference]: Start difference. First operand 198 states and 210 transitions. Second operand 6 states. [2020-09-25 03:15:28,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:15:28,041 INFO L93 Difference]: Finished difference Result 283 states and 301 transitions. [2020-09-25 03:15:28,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 03:15:28,041 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2020-09-25 03:15:28,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:15:28,043 INFO L225 Difference]: With dead ends: 283 [2020-09-25 03:15:28,043 INFO L226 Difference]: Without dead ends: 253 [2020-09-25 03:15:28,044 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 03:15:28,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2020-09-25 03:15:28,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 232. [2020-09-25 03:15:28,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-09-25 03:15:28,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 252 transitions. [2020-09-25 03:15:28,059 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 252 transitions. Word has length 54 [2020-09-25 03:15:28,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:15:28,059 INFO L479 AbstractCegarLoop]: Abstraction has 232 states and 252 transitions. [2020-09-25 03:15:28,059 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 03:15:28,059 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 252 transitions. [2020-09-25 03:15:28,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-25 03:15:28,060 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:15:28,060 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:15:28,060 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 03:15:28,061 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 03:15:28,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:15:28,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1943233352, now seen corresponding path program 1 times [2020-09-25 03:15:28,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:15:28,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [672990491] [2020-09-25 03:15:28,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:15:28,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:28,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:28,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:28,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:28,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-25 03:15:28,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:15:28,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 461 [2020-09-25 03:15:28,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:28,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:15:28,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:15:28,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 03:15:28,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:15:28,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:15:28,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:28,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:28,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:28,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:15:28,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:15:28,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:15:28,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:28,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:15:28,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:15:28,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:15:28,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:15:28,656 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:15:28,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [672990491] [2020-09-25 03:15:28,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:15:28,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 03:15:28,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589540173] [2020-09-25 03:15:28,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 03:15:28,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:15:28,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 03:15:28,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 03:15:28,658 INFO L87 Difference]: Start difference. First operand 232 states and 252 transitions. Second operand 7 states. [2020-09-25 03:15:29,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:15:29,172 INFO L93 Difference]: Finished difference Result 381 states and 411 transitions. [2020-09-25 03:15:29,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 03:15:29,172 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2020-09-25 03:15:29,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:15:29,174 INFO L225 Difference]: With dead ends: 381 [2020-09-25 03:15:29,174 INFO L226 Difference]: Without dead ends: 278 [2020-09-25 03:15:29,175 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-09-25 03:15:29,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-09-25 03:15:29,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 232. [2020-09-25 03:15:29,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-09-25 03:15:29,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 250 transitions. [2020-09-25 03:15:29,189 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 250 transitions. Word has length 56 [2020-09-25 03:15:29,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:15:29,189 INFO L479 AbstractCegarLoop]: Abstraction has 232 states and 250 transitions. [2020-09-25 03:15:29,189 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 03:15:29,190 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 250 transitions. [2020-09-25 03:15:29,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-25 03:15:29,190 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:15:29,190 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 03:15:29,191 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 03:15:29,191 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 03:15:29,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:15:29,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1270543956, now seen corresponding path program 1 times [2020-09-25 03:15:29,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:15:29,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1431430506] [2020-09-25 03:15:29,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:15:29,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:29,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:29,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:29,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:29,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-25 03:15:29,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:15:29,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-09-25 03:15:29,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:29,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:15:29,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-09-25 03:15:29,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:15:29,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:15:29,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:15:29,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:29,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:29,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:29,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:15:29,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:15:29,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:15:29,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:29,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:15:29,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:15:29,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:15:29,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:15:29,545 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 03:15:29,545 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1431430506] [2020-09-25 03:15:29,546 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:15:29,546 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 03:15:29,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807346991] [2020-09-25 03:15:29,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 03:15:29,547 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:15:29,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 03:15:29,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 03:15:29,547 INFO L87 Difference]: Start difference. First operand 232 states and 250 transitions. Second operand 6 states. [2020-09-25 03:15:29,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:15:29,910 INFO L93 Difference]: Finished difference Result 375 states and 403 transitions. [2020-09-25 03:15:29,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 03:15:29,910 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 56 [2020-09-25 03:15:29,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:15:29,912 INFO L225 Difference]: With dead ends: 375 [2020-09-25 03:15:29,913 INFO L226 Difference]: Without dead ends: 256 [2020-09-25 03:15:29,915 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 03:15:29,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2020-09-25 03:15:29,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 235. [2020-09-25 03:15:29,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-09-25 03:15:29,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 253 transitions. [2020-09-25 03:15:29,935 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 253 transitions. Word has length 56 [2020-09-25 03:15:29,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:15:29,936 INFO L479 AbstractCegarLoop]: Abstraction has 235 states and 253 transitions. [2020-09-25 03:15:29,936 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 03:15:29,936 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 253 transitions. [2020-09-25 03:15:29,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-25 03:15:29,937 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:15:29,937 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 03:15:29,938 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 03:15:29,938 INFO L427 AbstractCegarLoop]: === Iteration 14 === [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 03:15:29,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:15:29,939 INFO L82 PathProgramCache]: Analyzing trace with hash 2002844954, now seen corresponding path program 1 times [2020-09-25 03:15:29,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:15:29,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [308716255] [2020-09-25 03:15:29,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:15:29,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 03:15:29,964 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 03:15:29,964 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 03:15:29,989 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 03:15:30,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 03:15:30 BoogieIcfgContainer [2020-09-25 03:15:30,037 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 03:15:30,042 INFO L168 Benchmark]: Toolchain (without parser) took 27610.57 ms. Allocated memory was 142.6 MB in the beginning and 414.2 MB in the end (delta: 271.6 MB). Free memory was 104.8 MB in the beginning and 308.6 MB in the end (delta: -203.8 MB). Peak memory consumption was 67.8 MB. Max. memory is 7.1 GB. [2020-09-25 03:15:30,042 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 142.6 MB. Free memory was 124.2 MB in the beginning and 123.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 03:15:30,048 INFO L168 Benchmark]: CACSL2BoogieTranslator took 748.92 ms. Allocated memory was 142.6 MB in the beginning and 204.5 MB in the end (delta: 61.9 MB). Free memory was 104.2 MB in the beginning and 172.1 MB in the end (delta: -67.9 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2020-09-25 03:15:30,049 INFO L168 Benchmark]: Boogie Preprocessor took 89.09 ms. Allocated memory is still 204.5 MB. Free memory was 172.1 MB in the beginning and 168.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. [2020-09-25 03:15:30,050 INFO L168 Benchmark]: RCFGBuilder took 956.78 ms. Allocated memory is still 204.5 MB. Free memory was 168.2 MB in the beginning and 105.5 MB in the end (delta: 62.7 MB). Peak memory consumption was 62.7 MB. Max. memory is 7.1 GB. [2020-09-25 03:15:30,051 INFO L168 Benchmark]: TraceAbstraction took 25803.14 ms. Allocated memory was 204.5 MB in the beginning and 414.2 MB in the end (delta: 209.7 MB). Free memory was 104.8 MB in the beginning and 308.6 MB in the end (delta: -203.8 MB). Peak memory consumption was 5.9 MB. Max. memory is 7.1 GB. [2020-09-25 03:15:30,054 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 142.6 MB. Free memory was 124.2 MB in the beginning and 123.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 748.92 ms. Allocated memory was 142.6 MB in the beginning and 204.5 MB in the end (delta: 61.9 MB). Free memory was 104.2 MB in the beginning and 172.1 MB in the end (delta: -67.9 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 89.09 ms. Allocated memory is still 204.5 MB. Free memory was 172.1 MB in the beginning and 168.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 956.78 ms. Allocated memory is still 204.5 MB. Free memory was 168.2 MB in the beginning and 105.5 MB in the end (delta: 62.7 MB). Peak memory consumption was 62.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 25803.14 ms. Allocated memory was 204.5 MB in the beginning and 414.2 MB in the end (delta: 209.7 MB). Free memory was 104.8 MB in the beginning and 308.6 MB in the end (delta: -203.8 MB). Peak memory consumption was 5.9 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: 25.6s, OverallIterations: 14, TraceHistogramMax: 2, AutomataDifference: 8.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2246 SDtfs, 4602 SDslu, 8435 SDs, 0 SdLazy, 5277 SolverSat, 171 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 185 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=235occurred in iteration=13, 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, 13 MinimizatonAttempts, 1449 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 15.7s InterpolantComputationTime, 592 NumberOfCodeBlocks, 592 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 521 ConstructedInterpolants, 0 QuantifiedInterpolants, 220351 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 12 PerfectInterpolantSequences, 6/7 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...