/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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=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-adbd35c [2020-10-14 04:49:29,725 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 04:49:29,728 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 04:49:29,766 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 04:49:29,767 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 04:49:29,775 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 04:49:29,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 04:49:29,779 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 04:49:29,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 04:49:29,785 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 04:49:29,786 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 04:49:29,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 04:49:29,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 04:49:29,789 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 04:49:29,791 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 04:49:29,793 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 04:49:29,794 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 04:49:29,795 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 04:49:29,796 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 04:49:29,804 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 04:49:29,806 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 04:49:29,807 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 04:49:29,808 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 04:49:29,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 04:49:29,821 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 04:49:29,821 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 04:49:29,821 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 04:49:29,827 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 04:49:29,828 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 04:49:29,829 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 04:49:29,829 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 04:49:29,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 04:49:29,833 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 04:49:29,834 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 04:49:29,837 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 04:49:29,838 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 04:49:29,838 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 04:49:29,838 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 04:49:29,839 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 04:49:29,840 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 04:49:29,840 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 04:49:29,841 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 [2020-10-14 04:49:29,878 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 04:49:29,878 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 04:49:29,880 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 04:49:29,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 04:49:29,880 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 04:49:29,880 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 04:49:29,881 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 04:49:29,881 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 04:49:29,881 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 04:49:29,881 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 04:49:29,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 04:49:29,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 04:49:29,882 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 04:49:29,883 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 04:49:29,883 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 04:49:29,883 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 04:49:29,883 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 04:49:29,883 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 04:49:29,884 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 04:49:29,884 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 04:49:29,884 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 04:49:29,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 04:49:29,885 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 04:49:29,885 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 04:49:29,885 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 04:49:29,885 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 04:49:29,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 04:49:29,886 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 04:49:29,886 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 04:49:29,886 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 -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 04:49:30,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 04:49:30,248 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 04:49:30,253 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 04:49:30,254 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 04:49:30,256 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 04:49:30,257 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-01-1.i [2020-10-14 04:49:30,323 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f64c29b2d/4fe908c7b68c4eafa264d2bee40e4c20/FLAG4ba14d0e5 [2020-10-14 04:49:30,888 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 04:49:30,889 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/dll-01-1.i [2020-10-14 04:49:30,904 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f64c29b2d/4fe908c7b68c4eafa264d2bee40e4c20/FLAG4ba14d0e5 [2020-10-14 04:49:31,183 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f64c29b2d/4fe908c7b68c4eafa264d2bee40e4c20 [2020-10-14 04:49:31,192 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 04:49:31,193 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 04:49:31,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 04:49:31,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 04:49:31,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 04:49:31,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:49:31" (1/1) ... [2020-10-14 04:49:31,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c542701 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:49:31, skipping insertion in model container [2020-10-14 04:49:31,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:49:31" (1/1) ... [2020-10-14 04:49:31,209 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 04:49:31,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 04:49:31,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:49:31,909 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 04:49:31,979 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:49:32,028 INFO L208 MainTranslator]: Completed translation [2020-10-14 04:49:32,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:49:32 WrapperNode [2020-10-14 04:49:32,029 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 04:49:32,029 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 04:49:32,030 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 04:49:32,030 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 04:49:32,043 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:49:32" (1/1) ... [2020-10-14 04:49:32,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:49:32" (1/1) ... [2020-10-14 04:49:32,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:49:32" (1/1) ... [2020-10-14 04:49:32,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:49:32" (1/1) ... [2020-10-14 04:49:32,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:49:32" (1/1) ... [2020-10-14 04:49:32,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:49:32" (1/1) ... [2020-10-14 04:49:32,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:49:32" (1/1) ... [2020-10-14 04:49:32,100 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 04:49:32,101 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 04:49:32,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 04:49:32,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 04:49:32,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:49:32" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 04:49:32,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 04:49:32,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 04:49:32,170 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 04:49:32,170 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-14 04:49:32,170 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-14 04:49:32,171 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-14 04:49:32,171 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-14 04:49:32,171 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-14 04:49:32,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-14 04:49:32,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-14 04:49:32,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-14 04:49:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-14 04:49:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-14 04:49:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-14 04:49:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-14 04:49:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-14 04:49:32,172 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-14 04:49:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-14 04:49:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-14 04:49:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-14 04:49:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-14 04:49:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-14 04:49:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-14 04:49:32,174 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-14 04:49:32,174 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-14 04:49:32,174 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-14 04:49:32,174 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-14 04:49:32,174 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-14 04:49:32,174 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-14 04:49:32,175 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-14 04:49:32,175 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-14 04:49:32,175 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-14 04:49:32,175 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-14 04:49:32,175 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-14 04:49:32,176 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-14 04:49:32,176 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-14 04:49:32,176 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-14 04:49:32,176 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-14 04:49:32,176 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-14 04:49:32,176 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-14 04:49:32,177 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-14 04:49:32,177 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-14 04:49:32,177 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-14 04:49:32,177 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-14 04:49:32,177 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-14 04:49:32,177 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-14 04:49:32,178 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-14 04:49:32,178 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-14 04:49:32,178 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-14 04:49:32,178 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-14 04:49:32,178 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-14 04:49:32,178 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-14 04:49:32,179 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-14 04:49:32,179 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 04:49:32,179 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-14 04:49:32,179 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-14 04:49:32,179 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 04:49:32,179 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-14 04:49:32,179 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-14 04:49:32,180 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-14 04:49:32,180 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-14 04:49:32,180 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-14 04:49:32,180 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 04:49:32,180 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-14 04:49:32,180 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-14 04:49:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-14 04:49:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 04:49:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-14 04:49:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-14 04:49:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-14 04:49:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-14 04:49:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-14 04:49:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-14 04:49:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-14 04:49:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-14 04:49:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-14 04:49:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-14 04:49:32,182 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-14 04:49:32,183 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-14 04:49:32,183 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-14 04:49:32,183 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-14 04:49:32,183 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-14 04:49:32,183 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-14 04:49:32,183 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-14 04:49:32,183 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-14 04:49:32,184 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-14 04:49:32,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-14 04:49:32,184 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-14 04:49:32,184 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-14 04:49:32,184 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-14 04:49:32,184 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-14 04:49:32,184 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-14 04:49:32,184 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-14 04:49:32,185 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-14 04:49:32,185 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-14 04:49:32,185 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-14 04:49:32,185 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-14 04:49:32,185 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-14 04:49:32,185 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-14 04:49:32,185 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-14 04:49:32,185 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-14 04:49:32,186 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-14 04:49:32,186 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-14 04:49:32,186 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-14 04:49:32,186 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-14 04:49:32,186 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-14 04:49:32,186 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 04:49:32,186 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 04:49:32,187 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 04:49:32,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 04:49:32,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 04:49:32,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 04:49:32,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 04:49:32,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 04:49:32,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 04:49:32,825 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 04:49:32,825 INFO L295 CfgBuilder]: Removed 30 assume(true) statements. [2020-10-14 04:49:32,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:49:32 BoogieIcfgContainer [2020-10-14 04:49:32,830 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 04:49:32,831 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 04:49:32,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 04:49:32,834 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 04:49:32,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:49:31" (1/3) ... [2020-10-14 04:49:32,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57fc204c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:49:32, skipping insertion in model container [2020-10-14 04:49:32,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:49:32" (2/3) ... [2020-10-14 04:49:32,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57fc204c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:49:32, skipping insertion in model container [2020-10-14 04:49:32,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:49:32" (3/3) ... [2020-10-14 04:49:32,838 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-01-1.i [2020-10-14 04:49:32,849 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 04:49:32,856 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2020-10-14 04:49:32,870 INFO L251 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2020-10-14 04:49:32,894 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 04:49:32,895 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 04:49:32,895 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 04:49:32,895 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 04:49:32,895 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 04:49:32,895 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 04:49:32,896 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 04:49:32,896 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 04:49:32,918 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states. [2020-10-14 04:49:32,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-14 04:49:32,924 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:32,925 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:32,926 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]=== [2020-10-14 04:49:32,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:32,932 INFO L82 PathProgramCache]: Analyzing trace with hash -1861454184, now seen corresponding path program 1 times [2020-10-14 04:49:32,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:32,942 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1147592909] [2020-10-14 04:49:32,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:33,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:33,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:33,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:33,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 04:49:33,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:33,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-14 04:49:33,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:33,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:33,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:49:33,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:49:33,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:49:33,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 04:49:33,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:33,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:33,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:33,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:33,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:33,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:33,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 04:49:33,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:33,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:33,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:33,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:33,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:33,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:33,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:49:33,260 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1147592909] [2020-10-14 04:49:33,262 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:33,262 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 04:49:33,263 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494255890] [2020-10-14 04:49:33,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:49:33,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:33,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:49:33,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:49:33,284 INFO L87 Difference]: Start difference. First operand 88 states. Second operand 4 states. [2020-10-14 04:49:33,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:33,525 INFO L93 Difference]: Finished difference Result 186 states and 302 transitions. [2020-10-14 04:49:33,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 04:49:33,527 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-10-14 04:49:33,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:33,538 INFO L225 Difference]: With dead ends: 186 [2020-10-14 04:49:33,538 INFO L226 Difference]: Without dead ends: 99 [2020-10-14 04:49:33,542 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 [2020-10-14 04:49:33,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-10-14 04:49:33,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 81. [2020-10-14 04:49:33,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-10-14 04:49:33,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 90 transitions. [2020-10-14 04:49:33,610 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 90 transitions. Word has length 8 [2020-10-14 04:49:33,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:33,610 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 90 transitions. [2020-10-14 04:49:33,610 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:49:33,610 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 90 transitions. [2020-10-14 04:49:33,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-14 04:49:33,611 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:33,611 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:33,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 04:49:33,612 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]=== [2020-10-14 04:49:33,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:33,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1461031906, now seen corresponding path program 1 times [2020-10-14 04:49:33,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:33,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [483792877] [2020-10-14 04:49:33,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:33,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:33,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:33,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:33,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:33,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 04:49:33,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:49:33,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-10-14 04:49:33,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:33,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:33,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:49:33,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-14 04:49:33,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:49:33,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:33,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:33,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:33,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:33,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:33,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:33,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:33,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:49:33,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:33,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:33,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:33,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:33,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:33,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:33,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:49:33,916 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [483792877] [2020-10-14 04:49:33,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:33,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 04:49:33,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038834712] [2020-10-14 04:49:33,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:49:33,919 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:33,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:49:33,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:49:33,919 INFO L87 Difference]: Start difference. First operand 81 states and 90 transitions. Second operand 4 states. [2020-10-14 04:49:34,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:34,056 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2020-10-14 04:49:34,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 04:49:34,056 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-14 04:49:34,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:34,058 INFO L225 Difference]: With dead ends: 84 [2020-10-14 04:49:34,058 INFO L226 Difference]: Without dead ends: 82 [2020-10-14 04:49:34,059 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 [2020-10-14 04:49:34,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-14 04:49:34,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-10-14 04:49:34,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-10-14 04:49:34,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 91 transitions. [2020-10-14 04:49:34,069 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 91 transitions. Word has length 14 [2020-10-14 04:49:34,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:34,069 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 91 transitions. [2020-10-14 04:49:34,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:49:34,069 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 91 transitions. [2020-10-14 04:49:34,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-14 04:49:34,070 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:34,070 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:34,070 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 04:49:34,071 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]=== [2020-10-14 04:49:34,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:34,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1461033828, now seen corresponding path program 1 times [2020-10-14 04:49:34,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:34,072 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1154617126] [2020-10-14 04:49:34,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:34,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:34,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:34,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:34,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:34,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 04:49:34,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:49:34,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 04:49:34,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:34,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:34,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 04:49:34,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 04:49:34,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 04:49:34,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:34,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:34,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:34,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:34,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:34,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:34,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:34,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 04:49:34,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:34,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:34,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:34,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:34,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:34,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 04:49:34,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:49:34,236 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1154617126] [2020-10-14 04:49:34,236 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:34,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 04:49:34,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999226579] [2020-10-14 04:49:34,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:49:34,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:34,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:49:34,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:49:34,238 INFO L87 Difference]: Start difference. First operand 82 states and 91 transitions. Second operand 5 states. [2020-10-14 04:49:34,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:34,476 INFO L93 Difference]: Finished difference Result 138 states and 153 transitions. [2020-10-14 04:49:34,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 04:49:34,477 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-14 04:49:34,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:34,478 INFO L225 Difference]: With dead ends: 138 [2020-10-14 04:49:34,479 INFO L226 Difference]: Without dead ends: 136 [2020-10-14 04:49:34,479 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 [2020-10-14 04:49:34,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-14 04:49:34,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 84. [2020-10-14 04:49:34,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-14 04:49:34,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 94 transitions. [2020-10-14 04:49:34,488 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 94 transitions. Word has length 14 [2020-10-14 04:49:34,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:34,489 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 94 transitions. [2020-10-14 04:49:34,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:49:34,489 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 94 transitions. [2020-10-14 04:49:34,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-14 04:49:34,489 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:34,490 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:34,490 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 04:49:34,490 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]=== [2020-10-14 04:49:34,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:34,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1462880870, now seen corresponding path program 1 times [2020-10-14 04:49:34,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:34,491 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1898105727] [2020-10-14 04:49:34,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:34,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:34,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:34,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:34,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:34,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 04:49:34,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:49:34,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-14 04:49:34,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:34,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:34,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:49:34,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:49:34,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 04:49:34,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:34,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:34,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:34,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:34,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:34,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:34,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:34,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:49:34,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:34,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:34,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:34,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:34,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:34,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:34,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:49:34,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1898105727] [2020-10-14 04:49:34,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:34,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 04:49:34,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497128666] [2020-10-14 04:49:34,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 04:49:34,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:34,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 04:49:34,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:49:34,721 INFO L87 Difference]: Start difference. First operand 84 states and 94 transitions. Second operand 6 states. [2020-10-14 04:49:35,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:35,081 INFO L93 Difference]: Finished difference Result 231 states and 255 transitions. [2020-10-14 04:49:35,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 04:49:35,082 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-14 04:49:35,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:35,085 INFO L225 Difference]: With dead ends: 231 [2020-10-14 04:49:35,086 INFO L226 Difference]: Without dead ends: 162 [2020-10-14 04:49:35,088 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 [2020-10-14 04:49:35,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-14 04:49:35,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 81. [2020-10-14 04:49:35,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-10-14 04:49:35,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 90 transitions. [2020-10-14 04:49:35,098 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 90 transitions. Word has length 14 [2020-10-14 04:49:35,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:35,098 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 90 transitions. [2020-10-14 04:49:35,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 04:49:35,098 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 90 transitions. [2020-10-14 04:49:35,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-14 04:49:35,099 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:35,099 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:35,099 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 04:49:35,100 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]=== [2020-10-14 04:49:35,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:35,100 INFO L82 PathProgramCache]: Analyzing trace with hash 177734485, now seen corresponding path program 1 times [2020-10-14 04:49:35,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:35,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2121902369] [2020-10-14 04:49:35,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:35,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:35,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:35,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:35,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:35,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:35,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 04:49:35,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:49:35,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-14 04:49:35,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:35,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:35,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:49:35,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-14 04:49:35,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:49:35,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:35,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:35,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:35,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:35,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:35,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:35,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:35,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:49:35,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:35,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:35,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:35,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:35,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:35,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:35,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:49:35,289 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2121902369] [2020-10-14 04:49:35,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:35,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 04:49:35,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729100479] [2020-10-14 04:49:35,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:49:35,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:35,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:49:35,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:49:35,290 INFO L87 Difference]: Start difference. First operand 81 states and 90 transitions. Second operand 4 states. [2020-10-14 04:49:35,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:35,456 INFO L93 Difference]: Finished difference Result 84 states and 94 transitions. [2020-10-14 04:49:35,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 04:49:35,456 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-14 04:49:35,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:35,458 INFO L225 Difference]: With dead ends: 84 [2020-10-14 04:49:35,458 INFO L226 Difference]: Without dead ends: 80 [2020-10-14 04:49:35,458 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 [2020-10-14 04:49:35,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-14 04:49:35,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 77. [2020-10-14 04:49:35,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-14 04:49:35,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 86 transitions. [2020-10-14 04:49:35,465 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 86 transitions. Word has length 19 [2020-10-14 04:49:35,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:35,466 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 86 transitions. [2020-10-14 04:49:35,466 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:49:35,466 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 86 transitions. [2020-10-14 04:49:35,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-14 04:49:35,467 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:35,467 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] [2020-10-14 04:49:35,467 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 04:49:35,467 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]=== [2020-10-14 04:49:35,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:35,468 INFO L82 PathProgramCache]: Analyzing trace with hash 1214805939, now seen corresponding path program 1 times [2020-10-14 04:49:35,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:35,468 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [886375063] [2020-10-14 04:49:35,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:35,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:35,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:35,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:35,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:35,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:35,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:35,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 04:49:35,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:49:35,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-10-14 04:49:35,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:35,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:35,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 04:49:35,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:49:35,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 04:49:35,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:35,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:35,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:35,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:35,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:35,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:35,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:35,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:49:35,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:35,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:35,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:35,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:35,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:35,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:35,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:49:35,746 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [886375063] [2020-10-14 04:49:35,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:35,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 04:49:35,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353833323] [2020-10-14 04:49:35,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:49:35,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:35,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:49:35,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:49:35,748 INFO L87 Difference]: Start difference. First operand 77 states and 86 transitions. Second operand 5 states. [2020-10-14 04:49:35,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:35,943 INFO L93 Difference]: Finished difference Result 136 states and 150 transitions. [2020-10-14 04:49:35,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:49:35,943 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-10-14 04:49:35,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:35,945 INFO L225 Difference]: With dead ends: 136 [2020-10-14 04:49:35,945 INFO L226 Difference]: Without dead ends: 116 [2020-10-14 04:49:35,946 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 [2020-10-14 04:49:35,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-14 04:49:35,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 76. [2020-10-14 04:49:35,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-10-14 04:49:35,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2020-10-14 04:49:35,953 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 20 [2020-10-14 04:49:35,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:35,953 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2020-10-14 04:49:35,953 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:49:35,953 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2020-10-14 04:49:35,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-14 04:49:35,955 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:35,955 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] [2020-10-14 04:49:35,955 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 04:49:35,955 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]=== [2020-10-14 04:49:35,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:35,956 INFO L82 PathProgramCache]: Analyzing trace with hash 1924122782, now seen corresponding path program 1 times [2020-10-14 04:49:35,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:35,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [725717853] [2020-10-14 04:49:35,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:35,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:35,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:35,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:36,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:36,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:36,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:36,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:36,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 04:49:36,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 04:49:36,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-14 04:49:36,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:36,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:36,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:49:36,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-14 04:49:36,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 04:49:36,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:36,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:36,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:36,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:36,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:36,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:36,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:36,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:49:36,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:36,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:36,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:36,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:36,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:36,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:36,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:49:36,201 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [725717853] [2020-10-14 04:49:36,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:36,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 04:49:36,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389001926] [2020-10-14 04:49:36,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:49:36,202 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:36,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:49:36,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:49:36,203 INFO L87 Difference]: Start difference. First operand 76 states and 85 transitions. Second operand 4 states. [2020-10-14 04:49:36,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:36,313 INFO L93 Difference]: Finished difference Result 141 states and 159 transitions. [2020-10-14 04:49:36,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 04:49:36,313 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-10-14 04:49:36,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:36,314 INFO L225 Difference]: With dead ends: 141 [2020-10-14 04:49:36,314 INFO L226 Difference]: Without dead ends: 100 [2020-10-14 04:49:36,315 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 [2020-10-14 04:49:36,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-10-14 04:49:36,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 79. [2020-10-14 04:49:36,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-14 04:49:36,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 89 transitions. [2020-10-14 04:49:36,321 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 89 transitions. Word has length 24 [2020-10-14 04:49:36,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:36,322 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 89 transitions. [2020-10-14 04:49:36,322 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:49:36,322 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 89 transitions. [2020-10-14 04:49:36,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-14 04:49:36,323 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:36,323 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] [2020-10-14 04:49:36,323 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 04:49:36,323 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]=== [2020-10-14 04:49:36,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:36,323 INFO L82 PathProgramCache]: Analyzing trace with hash -481740404, now seen corresponding path program 1 times [2020-10-14 04:49:36,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:36,324 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1617582388] [2020-10-14 04:49:36,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:36,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:36,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:36,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:36,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:36,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:36,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:36,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:36,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:36,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-14 04:49:36,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 04:49:36,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-10-14 04:49:36,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:36,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:36,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:49:36,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-14 04:49:36,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 04:49:36,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:36,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:36,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:36,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:36,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:36,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:36,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:36,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:49:36,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:36,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:36,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:36,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:36,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:36,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:36,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:49:36,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1617582388] [2020-10-14 04:49:36,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:36,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 04:49:36,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359261621] [2020-10-14 04:49:36,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:49:36,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:36,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:49:36,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:49:36,553 INFO L87 Difference]: Start difference. First operand 79 states and 89 transitions. Second operand 4 states. [2020-10-14 04:49:36,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:36,675 INFO L93 Difference]: Finished difference Result 79 states and 89 transitions. [2020-10-14 04:49:36,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 04:49:36,676 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-10-14 04:49:36,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:36,677 INFO L225 Difference]: With dead ends: 79 [2020-10-14 04:49:36,678 INFO L226 Difference]: Without dead ends: 77 [2020-10-14 04:49:36,678 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 [2020-10-14 04:49:36,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-10-14 04:49:36,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2020-10-14 04:49:36,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-14 04:49:36,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 87 transitions. [2020-10-14 04:49:36,684 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 87 transitions. Word has length 25 [2020-10-14 04:49:36,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:36,685 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 87 transitions. [2020-10-14 04:49:36,685 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:49:36,685 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 87 transitions. [2020-10-14 04:49:36,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-14 04:49:36,686 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:36,686 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] [2020-10-14 04:49:36,686 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 04:49:36,687 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]=== [2020-10-14 04:49:36,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:36,687 INFO L82 PathProgramCache]: Analyzing trace with hash -611625627, now seen corresponding path program 1 times [2020-10-14 04:49:36,687 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:36,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1145825949] [2020-10-14 04:49:36,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:36,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:36,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:36,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:36,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:36,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:37,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:37,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 04:49:37,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:49:37,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 356 [2020-10-14 04:49:37,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:37,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:37,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 04:49:37,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 04:49:37,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 04:49:37,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:37,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:37,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:37,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:37,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:37,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:37,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:37,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:49:37,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:37,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:37,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:37,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:37,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:37,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:37,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:49:37,111 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1145825949] [2020-10-14 04:49:37,112 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:37,112 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 04:49:37,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413152432] [2020-10-14 04:49:37,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:49:37,113 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:37,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:49:37,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:49:37,114 INFO L87 Difference]: Start difference. First operand 77 states and 87 transitions. Second operand 5 states. [2020-10-14 04:49:37,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:37,351 INFO L93 Difference]: Finished difference Result 191 states and 215 transitions. [2020-10-14 04:49:37,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:49:37,352 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-10-14 04:49:37,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:37,353 INFO L225 Difference]: With dead ends: 191 [2020-10-14 04:49:37,353 INFO L226 Difference]: Without dead ends: 128 [2020-10-14 04:49:37,354 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 [2020-10-14 04:49:37,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-14 04:49:37,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 77. [2020-10-14 04:49:37,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-14 04:49:37,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 86 transitions. [2020-10-14 04:49:37,359 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 86 transitions. Word has length 27 [2020-10-14 04:49:37,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:37,359 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 86 transitions. [2020-10-14 04:49:37,359 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:49:37,360 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 86 transitions. [2020-10-14 04:49:37,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-14 04:49:37,360 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:37,361 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:37,361 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 04:49:37,361 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]=== [2020-10-14 04:49:37,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:37,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1632693981, now seen corresponding path program 1 times [2020-10-14 04:49:37,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:37,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1777834831] [2020-10-14 04:49:37,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:37,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:37,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:37,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:37,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:37,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 04:49:37,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:49:37,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-14 04:49:37,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:37,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:37,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 04:49:37,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-14 04:49:37,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 04:49:37,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:37,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:37,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:37,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:37,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:37,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:37,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:37,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:49:37,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:37,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:37,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:37,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:37,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:37,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:37,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:49:37,545 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1777834831] [2020-10-14 04:49:37,546 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:37,546 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 04:49:37,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670403728] [2020-10-14 04:49:37,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:49:37,547 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:37,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:49:37,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:49:37,547 INFO L87 Difference]: Start difference. First operand 77 states and 86 transitions. Second operand 5 states. [2020-10-14 04:49:37,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:37,710 INFO L93 Difference]: Finished difference Result 87 states and 99 transitions. [2020-10-14 04:49:37,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 04:49:37,710 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-10-14 04:49:37,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:37,711 INFO L225 Difference]: With dead ends: 87 [2020-10-14 04:49:37,711 INFO L226 Difference]: Without dead ends: 85 [2020-10-14 04:49:37,712 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 [2020-10-14 04:49:37,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-14 04:49:37,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 80. [2020-10-14 04:49:37,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-14 04:49:37,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 90 transitions. [2020-10-14 04:49:37,716 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 90 transitions. Word has length 27 [2020-10-14 04:49:37,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:37,717 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 90 transitions. [2020-10-14 04:49:37,717 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:49:37,717 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 90 transitions. [2020-10-14 04:49:37,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-14 04:49:37,718 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:37,718 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] [2020-10-14 04:49:37,718 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 04:49:37,718 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]=== [2020-10-14 04:49:37,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:37,719 INFO L82 PathProgramCache]: Analyzing trace with hash -1630846939, now seen corresponding path program 1 times [2020-10-14 04:49:37,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:37,719 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1256038219] [2020-10-14 04:49:37,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:37,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:37,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:37,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:37,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:37,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 04:49:37,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:49:37,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-10-14 04:49:37,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:37,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:37,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:49:37,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-14 04:49:37,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 04:49:37,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:37,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:37,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:37,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:37,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:37,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:37,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:37,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:49:37,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:37,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:37,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:37,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:37,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:37,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:37,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:49:37,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1256038219] [2020-10-14 04:49:37,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:37,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 04:49:37,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434748242] [2020-10-14 04:49:37,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 04:49:37,986 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:37,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 04:49:37,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:49:37,986 INFO L87 Difference]: Start difference. First operand 80 states and 90 transitions. Second operand 6 states. [2020-10-14 04:49:38,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:38,196 INFO L93 Difference]: Finished difference Result 149 states and 170 transitions. [2020-10-14 04:49:38,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 04:49:38,197 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-10-14 04:49:38,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:38,198 INFO L225 Difference]: With dead ends: 149 [2020-10-14 04:49:38,198 INFO L226 Difference]: Without dead ends: 86 [2020-10-14 04:49:38,198 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-14 04:49:38,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-10-14 04:49:38,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 77. [2020-10-14 04:49:38,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-14 04:49:38,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 86 transitions. [2020-10-14 04:49:38,203 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 86 transitions. Word has length 27 [2020-10-14 04:49:38,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:38,203 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 86 transitions. [2020-10-14 04:49:38,203 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 04:49:38,203 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 86 transitions. [2020-10-14 04:49:38,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-14 04:49:38,208 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:38,208 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] [2020-10-14 04:49:38,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 04:49:38,209 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]=== [2020-10-14 04:49:38,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:38,210 INFO L82 PathProgramCache]: Analyzing trace with hash 668074133, now seen corresponding path program 1 times [2020-10-14 04:49:38,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:38,210 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1540692010] [2020-10-14 04:49:38,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:38,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:38,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:38,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:38,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:38,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:38,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:38,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:38,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:38,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 04:49:38,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 04:49:38,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-10-14 04:49:38,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:38,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:38,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:49:38,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 04:49:38,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 04:49:38,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:38,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:38,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:38,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:38,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:38,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:38,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:38,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:49:38,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:38,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:38,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:38,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:38,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:38,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:38,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:49:38,506 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1540692010] [2020-10-14 04:49:38,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:38,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 04:49:38,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089935354] [2020-10-14 04:49:38,507 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 04:49:38,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:38,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 04:49:38,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:49:38,508 INFO L87 Difference]: Start difference. First operand 77 states and 86 transitions. Second operand 6 states. [2020-10-14 04:49:38,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:38,791 INFO L93 Difference]: Finished difference Result 179 states and 201 transitions. [2020-10-14 04:49:38,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 04:49:38,792 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-10-14 04:49:38,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:38,793 INFO L225 Difference]: With dead ends: 179 [2020-10-14 04:49:38,793 INFO L226 Difference]: Without dead ends: 137 [2020-10-14 04:49:38,794 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 [2020-10-14 04:49:38,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-10-14 04:49:38,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 87. [2020-10-14 04:49:38,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-10-14 04:49:38,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 97 transitions. [2020-10-14 04:49:38,801 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 97 transitions. Word has length 28 [2020-10-14 04:49:38,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:38,803 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 97 transitions. [2020-10-14 04:49:38,803 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 04:49:38,803 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 97 transitions. [2020-10-14 04:49:38,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-14 04:49:38,805 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:38,806 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] [2020-10-14 04:49:38,806 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 04:49:38,806 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]=== [2020-10-14 04:49:38,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:38,806 INFO L82 PathProgramCache]: Analyzing trace with hash 567478293, now seen corresponding path program 1 times [2020-10-14 04:49:38,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:38,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [284537157] [2020-10-14 04:49:38,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:38,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:38,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:38,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:38,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:38,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:39,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:39,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:39,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 04:49:39,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 04:49:39,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 507 [2020-10-14 04:49:39,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:39,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:39,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:49:39,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:49:39,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 04:49:39,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:39,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:39,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:39,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:39,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:39,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:39,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:39,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:49:39,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:39,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:39,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:39,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:39,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:39,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:39,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:49:39,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [284537157] [2020-10-14 04:49:39,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:39,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 04:49:39,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662996025] [2020-10-14 04:49:39,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 04:49:39,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:39,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 04:49:39,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-14 04:49:39,491 INFO L87 Difference]: Start difference. First operand 87 states and 97 transitions. Second operand 8 states. [2020-10-14 04:49:40,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:40,138 INFO L93 Difference]: Finished difference Result 236 states and 260 transitions. [2020-10-14 04:49:40,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 04:49:40,138 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2020-10-14 04:49:40,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:40,141 INFO L225 Difference]: With dead ends: 236 [2020-10-14 04:49:40,141 INFO L226 Difference]: Without dead ends: 234 [2020-10-14 04:49:40,142 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-10-14 04:49:40,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-10-14 04:49:40,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 99. [2020-10-14 04:49:40,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-10-14 04:49:40,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 111 transitions. [2020-10-14 04:49:40,152 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 111 transitions. Word has length 28 [2020-10-14 04:49:40,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:40,152 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 111 transitions. [2020-10-14 04:49:40,152 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 04:49:40,153 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 111 transitions. [2020-10-14 04:49:40,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-14 04:49:40,154 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:40,154 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] [2020-10-14 04:49:40,155 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 04:49:40,155 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]=== [2020-10-14 04:49:40,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:40,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1429819819, now seen corresponding path program 1 times [2020-10-14 04:49:40,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:40,156 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1662024346] [2020-10-14 04:49:40,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:40,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:40,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:40,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:40,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:40,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:40,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:40,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:40,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 04:49:40,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 04:49:40,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 269 [2020-10-14 04:49:40,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:40,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:40,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:49:40,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-14 04:49:40,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:49:40,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:40,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:40,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:40,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:40,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:40,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:40,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:40,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:49:40,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:40,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:40,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:40,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:40,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:40,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:40,468 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:49:40,469 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1662024346] [2020-10-14 04:49:40,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:40,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 04:49:40,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131303973] [2020-10-14 04:49:40,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:49:40,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:40,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:49:40,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:49:40,471 INFO L87 Difference]: Start difference. First operand 99 states and 111 transitions. Second operand 4 states. [2020-10-14 04:49:40,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:40,593 INFO L93 Difference]: Finished difference Result 99 states and 111 transitions. [2020-10-14 04:49:40,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 04:49:40,593 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-10-14 04:49:40,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:40,594 INFO L225 Difference]: With dead ends: 99 [2020-10-14 04:49:40,594 INFO L226 Difference]: Without dead ends: 97 [2020-10-14 04:49:40,596 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 [2020-10-14 04:49:40,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-10-14 04:49:40,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-10-14 04:49:40,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-14 04:49:40,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 109 transitions. [2020-10-14 04:49:40,604 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 109 transitions. Word has length 30 [2020-10-14 04:49:40,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:40,604 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 109 transitions. [2020-10-14 04:49:40,604 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:49:40,604 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 109 transitions. [2020-10-14 04:49:40,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-14 04:49:40,605 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:40,605 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] [2020-10-14 04:49:40,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 04:49:40,605 INFO L427 AbstractCegarLoop]: === Iteration 15 === [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]=== [2020-10-14 04:49:40,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:40,606 INFO L82 PathProgramCache]: Analyzing trace with hash 758661948, now seen corresponding path program 1 times [2020-10-14 04:49:40,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:40,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1522526526] [2020-10-14 04:49:40,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:40,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 04:49:40,618 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 04:49:40,619 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 04:49:40,638 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 04:49:40,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:49:40 BoogieIcfgContainer [2020-10-14 04:49:40,671 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 04:49:40,674 INFO L168 Benchmark]: Toolchain (without parser) took 9479.35 ms. Allocated memory was 147.8 MB in the beginning and 314.6 MB in the end (delta: 166.7 MB). Free memory was 102.4 MB in the beginning and 124.3 MB in the end (delta: -21.9 MB). Peak memory consumption was 144.8 MB. Max. memory is 7.1 GB. [2020-10-14 04:49:40,675 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-10-14 04:49:40,675 INFO L168 Benchmark]: CACSL2BoogieTranslator took 834.71 ms. Allocated memory was 147.8 MB in the beginning and 208.1 MB in the end (delta: 60.3 MB). Free memory was 102.4 MB in the beginning and 173.5 MB in the end (delta: -71.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. [2020-10-14 04:49:40,681 INFO L168 Benchmark]: Boogie Preprocessor took 70.99 ms. Allocated memory is still 208.1 MB. Free memory was 173.5 MB in the beginning and 170.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-10-14 04:49:40,685 INFO L168 Benchmark]: RCFGBuilder took 728.99 ms. Allocated memory is still 208.1 MB. Free memory was 170.6 MB in the beginning and 115.1 MB in the end (delta: 55.5 MB). Peak memory consumption was 55.5 MB. Max. memory is 7.1 GB. [2020-10-14 04:49:40,685 INFO L168 Benchmark]: TraceAbstraction took 7839.94 ms. Allocated memory was 208.1 MB in the beginning and 314.6 MB in the end (delta: 106.4 MB). Free memory was 114.2 MB in the beginning and 124.3 MB in the end (delta: -10.2 MB). Peak memory consumption was 96.3 MB. Max. memory is 7.1 GB. [2020-10-14 04:49:40,692 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 834.71 ms. Allocated memory was 147.8 MB in the beginning and 208.1 MB in the end (delta: 60.3 MB). Free memory was 102.4 MB in the beginning and 173.5 MB in the end (delta: -71.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 70.99 ms. Allocated memory is still 208.1 MB. Free memory was 173.5 MB in the beginning and 170.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 728.99 ms. Allocated memory is still 208.1 MB. Free memory was 170.6 MB in the beginning and 115.1 MB in the end (delta: 55.5 MB). Peak memory consumption was 55.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7839.94 ms. Allocated memory was 208.1 MB in the beginning and 314.6 MB in the end (delta: 106.4 MB). Free memory was 114.2 MB in the beginning and 124.3 MB in the end (delta: -10.2 MB). Peak memory consumption was 96.3 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, 88 locations, 13 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 7.7s, OverallIterations: 15, TraceHistogramMax: 1, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1110 SDtfs, 928 SDslu, 1697 SDs, 0 SdLazy, 2064 SolverSat, 74 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=99occurred 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: 0.1s AutomataMinimizationTime, 14 MinimizatonAttempts, 465 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 336 NumberOfCodeBlocks, 336 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 291 ConstructedInterpolants, 0 QuantifiedInterpolants, 35154 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 1/1 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...