/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/heap-manipulation/bubble_sort_linux-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 04:54:30,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 04:54:30,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 04:54:30,709 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 04:54:30,709 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 04:54:30,717 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 04:54:30,718 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 04:54:30,721 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 04:54:30,724 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 04:54:30,727 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 04:54:30,728 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 04:54:30,730 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 04:54:30,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 04:54:30,733 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 04:54:30,737 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 04:54:30,739 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 04:54:30,741 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 04:54:30,743 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 04:54:30,744 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 04:54:30,751 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 04:54:30,754 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 04:54:30,755 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 04:54:30,756 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 04:54:30,757 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 04:54:30,768 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 04:54:30,769 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 04:54:30,771 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 04:54:30,772 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 04:54:30,772 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 04:54:30,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 04:54:30,773 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 04:54:30,777 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 04:54:30,778 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 04:54:30,779 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 04:54:30,783 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 04:54:30,783 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 04:54:30,786 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 04:54:30,786 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 04:54:30,786 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 04:54:30,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 04:54:30,788 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 04:54:30,789 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 04:54:30,832 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 04:54:30,834 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 04:54:30,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 04:54:30,837 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 04:54:30,837 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 04:54:30,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 04:54:30,837 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 04:54:30,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 04:54:30,838 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 04:54:30,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 04:54:30,839 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 04:54:30,839 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 04:54:30,840 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 04:54:30,840 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 04:54:30,840 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 04:54:30,841 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 04:54:30,841 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 04:54:30,841 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 04:54:30,841 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 04:54:30,841 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 04:54:30,842 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 04:54:30,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 04:54:30,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 04:54:30,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 04:54:30,843 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 04:54:30,843 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 04:54:30,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 04:54:30,843 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 04:54:30,844 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 04:54:30,844 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 04:54:31,168 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 04:54:31,179 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 04:54:31,183 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 04:54:31,184 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 04:54:31,185 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 04:54:31,185 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-1.i [2020-10-14 04:54:31,247 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/179019696/81e9b98637e8460c9d7e1cdfa0b7fc8a/FLAGb123621c1 [2020-10-14 04:54:31,828 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 04:54:31,828 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-1.i [2020-10-14 04:54:31,851 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/179019696/81e9b98637e8460c9d7e1cdfa0b7fc8a/FLAGb123621c1 [2020-10-14 04:54:32,105 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/179019696/81e9b98637e8460c9d7e1cdfa0b7fc8a [2020-10-14 04:54:32,116 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 04:54:32,118 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 04:54:32,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 04:54:32,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 04:54:32,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 04:54:32,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:54:32" (1/1) ... [2020-10-14 04:54:32,127 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71e0f281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:54:32, skipping insertion in model container [2020-10-14 04:54:32,128 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:54:32" (1/1) ... [2020-10-14 04:54:32,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 04:54:32,184 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 04:54:32,831 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:54:32,842 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 04:54:32,903 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:54:33,018 INFO L208 MainTranslator]: Completed translation [2020-10-14 04:54:33,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:54:33 WrapperNode [2020-10-14 04:54:33,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 04:54:33,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 04:54:33,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 04:54:33,020 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 04:54:33,034 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:54:33" (1/1) ... [2020-10-14 04:54:33,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:54:33" (1/1) ... [2020-10-14 04:54:33,058 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:54:33" (1/1) ... [2020-10-14 04:54:33,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:54:33" (1/1) ... [2020-10-14 04:54:33,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:54:33" (1/1) ... [2020-10-14 04:54:33,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:54:33" (1/1) ... [2020-10-14 04:54:33,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:54:33" (1/1) ... [2020-10-14 04:54:33,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 04:54:33,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 04:54:33,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 04:54:33,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 04:54:33,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:54:33" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 04:54:33,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 04:54:33,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 04:54:33,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-14 04:54:33,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-14 04:54:33,195 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-10-14 04:54:33,196 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2020-10-14 04:54:33,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-10-14 04:54:33,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2020-10-14 04:54:33,196 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-10-14 04:54:33,197 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2020-10-14 04:54:33,197 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2020-10-14 04:54:33,197 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2020-10-14 04:54:33,197 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2020-10-14 04:54:33,197 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2020-10-14 04:54:33,198 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort_pass [2020-10-14 04:54:33,198 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2020-10-14 04:54:33,198 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 04:54:33,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 04:54:33,199 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-14 04:54:33,199 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-14 04:54:33,199 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-14 04:54:33,199 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-14 04:54:33,200 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-14 04:54:33,200 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-14 04:54:33,200 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-14 04:54:33,200 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-14 04:54:33,200 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-14 04:54:33,201 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-14 04:54:33,201 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-14 04:54:33,201 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-14 04:54:33,201 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-14 04:54:33,201 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-14 04:54:33,202 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-14 04:54:33,202 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-14 04:54:33,202 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-14 04:54:33,202 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-14 04:54:33,202 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-14 04:54:33,203 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-14 04:54:33,203 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-14 04:54:33,203 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-14 04:54:33,203 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-14 04:54:33,203 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-14 04:54:33,204 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-14 04:54:33,204 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-14 04:54:33,204 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-14 04:54:33,204 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-14 04:54:33,204 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-14 04:54:33,204 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-14 04:54:33,205 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-14 04:54:33,205 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-14 04:54:33,205 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-14 04:54:33,205 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-14 04:54:33,205 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-14 04:54:33,206 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-14 04:54:33,206 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-14 04:54:33,206 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-14 04:54:33,206 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-14 04:54:33,206 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-14 04:54:33,207 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-14 04:54:33,207 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-14 04:54:33,207 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-14 04:54:33,207 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-14 04:54:33,207 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-14 04:54:33,207 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-14 04:54:33,208 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-14 04:54:33,208 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-14 04:54:33,208 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-14 04:54:33,208 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-14 04:54:33,208 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-14 04:54:33,209 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-14 04:54:33,209 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 04:54:33,209 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-14 04:54:33,209 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-14 04:54:33,209 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 04:54:33,209 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-14 04:54:33,210 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-14 04:54:33,210 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-14 04:54:33,210 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-14 04:54:33,210 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 04:54:33,210 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-14 04:54:33,211 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-14 04:54:33,211 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 04:54:33,211 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-14 04:54:33,211 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-14 04:54:33,211 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-14 04:54:33,212 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-14 04:54:33,212 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-14 04:54:33,212 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-14 04:54:33,212 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-14 04:54:33,212 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-14 04:54:33,213 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-14 04:54:33,213 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-14 04:54:33,213 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-14 04:54:33,213 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-14 04:54:33,213 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-14 04:54:33,213 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-14 04:54:33,214 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-14 04:54:33,214 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-14 04:54:33,214 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-14 04:54:33,214 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-14 04:54:33,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-14 04:54:33,214 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-14 04:54:33,215 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-14 04:54:33,215 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-14 04:54:33,215 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-14 04:54:33,215 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-14 04:54:33,215 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-14 04:54:33,215 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-14 04:54:33,216 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-14 04:54:33,216 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-14 04:54:33,216 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-14 04:54:33,216 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-14 04:54:33,216 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-14 04:54:33,216 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-14 04:54:33,217 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-14 04:54:33,217 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-14 04:54:33,217 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-14 04:54:33,217 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-14 04:54:33,217 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-14 04:54:33,218 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-14 04:54:33,218 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-10-14 04:54:33,218 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-10-14 04:54:33,218 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-10-14 04:54:33,218 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-10-14 04:54:33,218 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-10-14 04:54:33,219 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-10-14 04:54:33,219 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-10-14 04:54:33,219 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-10-14 04:54:33,219 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-10-14 04:54:33,219 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-10-14 04:54:33,220 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-10-14 04:54:33,220 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-10-14 04:54:33,220 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-10-14 04:54:33,220 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-10-14 04:54:33,220 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-10-14 04:54:33,221 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-10-14 04:54:33,221 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-10-14 04:54:33,221 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-10-14 04:54:33,221 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-10-14 04:54:33,221 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-10-14 04:54:33,222 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-10-14 04:54:33,222 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-10-14 04:54:33,222 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-10-14 04:54:33,222 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-10-14 04:54:33,222 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-10-14 04:54:33,223 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-10-14 04:54:33,223 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-10-14 04:54:33,223 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-10-14 04:54:33,223 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-10-14 04:54:33,223 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-10-14 04:54:33,224 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-10-14 04:54:33,224 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-10-14 04:54:33,224 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-10-14 04:54:33,224 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-10-14 04:54:33,224 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-10-14 04:54:33,224 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-10-14 04:54:33,225 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-10-14 04:54:33,225 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-10-14 04:54:33,225 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-14 04:54:33,225 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-10-14 04:54:33,225 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-10-14 04:54:33,225 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-10-14 04:54:33,226 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-10-14 04:54:33,226 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-14 04:54:33,226 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-10-14 04:54:33,226 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-10-14 04:54:33,226 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-10-14 04:54:33,226 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-10-14 04:54:33,226 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-10-14 04:54:33,227 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-10-14 04:54:33,227 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-10-14 04:54:33,227 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-10-14 04:54:33,227 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-10-14 04:54:33,227 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-10-14 04:54:33,227 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-10-14 04:54:33,228 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-10-14 04:54:33,228 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-10-14 04:54:33,228 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-10-14 04:54:33,228 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-10-14 04:54:33,228 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-10-14 04:54:33,228 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-10-14 04:54:33,229 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-10-14 04:54:33,229 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-10-14 04:54:33,229 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-10-14 04:54:33,229 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-10-14 04:54:33,229 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-10-14 04:54:33,230 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-10-14 04:54:33,230 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-10-14 04:54:33,230 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-10-14 04:54:33,230 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-10-14 04:54:33,230 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-10-14 04:54:33,230 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-10-14 04:54:33,231 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-10-14 04:54:33,231 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-10-14 04:54:33,231 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-10-14 04:54:33,231 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-10-14 04:54:33,231 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-10-14 04:54:33,231 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-10-14 04:54:33,232 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-10-14 04:54:33,232 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-10-14 04:54:33,232 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-10-14 04:54:33,232 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-10-14 04:54:33,232 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-10-14 04:54:33,232 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-10-14 04:54:33,233 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-10-14 04:54:33,233 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-10-14 04:54:33,233 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-10-14 04:54:33,233 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-10-14 04:54:33,233 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-10-14 04:54:33,233 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-10-14 04:54:33,234 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-10-14 04:54:33,234 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-10-14 04:54:33,234 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-10-14 04:54:33,234 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-10-14 04:54:33,234 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-10-14 04:54:33,234 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-10-14 04:54:33,235 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-10-14 04:54:33,235 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-10-14 04:54:33,235 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-10-14 04:54:33,235 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-10-14 04:54:33,235 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-10-14 04:54:33,235 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 04:54:33,235 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-10-14 04:54:33,236 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2020-10-14 04:54:33,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 04:54:33,236 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-10-14 04:54:33,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 04:54:33,236 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2020-10-14 04:54:33,237 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-10-14 04:54:33,237 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2020-10-14 04:54:33,237 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2020-10-14 04:54:33,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 04:54:33,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 04:54:33,237 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2020-10-14 04:54:33,237 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2020-10-14 04:54:33,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 04:54:33,238 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2020-10-14 04:54:33,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 04:54:33,238 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort_pass [2020-10-14 04:54:33,238 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2020-10-14 04:54:33,239 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 04:54:33,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 04:54:33,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 04:54:33,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-14 04:54:33,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 04:54:34,110 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 04:54:34,111 INFO L295 CfgBuilder]: Removed 41 assume(true) statements. [2020-10-14 04:54:34,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:54:34 BoogieIcfgContainer [2020-10-14 04:54:34,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 04:54:34,117 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 04:54:34,118 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 04:54:34,121 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 04:54:34,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:54:32" (1/3) ... [2020-10-14 04:54:34,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ea62b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:54:34, skipping insertion in model container [2020-10-14 04:54:34,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:54:33" (2/3) ... [2020-10-14 04:54:34,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ea62b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:54:34, skipping insertion in model container [2020-10-14 04:54:34,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:54:34" (3/3) ... [2020-10-14 04:54:34,125 INFO L109 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-1.i [2020-10-14 04:54:34,136 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 04:54:34,145 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 04:54:34,160 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 04:54:34,190 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 04:54:34,191 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 04:54:34,191 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 04:54:34,191 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 04:54:34,191 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 04:54:34,191 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 04:54:34,191 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 04:54:34,191 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 04:54:34,216 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states. [2020-10-14 04:54:34,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-14 04:54:34,223 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:54:34,224 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:54:34,224 INFO L427 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:54:34,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:54:34,231 INFO L82 PathProgramCache]: Analyzing trace with hash -663354135, now seen corresponding path program 1 times [2020-10-14 04:54:34,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:54:34,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [754636491] [2020-10-14 04:54:34,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:54:34,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:54:34,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:34,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:34,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:54:34,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 04:54:34,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:54:34,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 375 [2020-10-14 04:54:34,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:54:34,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:54:34,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:54:34,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 04:54:34,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:54:34,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 04:54:34,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:54:34,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:54:34,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:34,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:54:34,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:54:34,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:54:34,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 04:54:34,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:54:34,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:54:34,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:54:34,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:54:34,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:54:34,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:54:34,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 04:54:34,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:54:34,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:34,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:54:34,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:54:34,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:54:34,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 04:54:34,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:54:34,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:54:34,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:54:34,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 04:54:34,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:54:34,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:54:34,904 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 04:54:34,904 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [754636491] [2020-10-14 04:54:34,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:54:34,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 04:54:34,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349715847] [2020-10-14 04:54:34,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:54:34,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:54:34,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:54:34,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:54:34,932 INFO L87 Difference]: Start difference. First operand 145 states. Second operand 4 states. [2020-10-14 04:54:35,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:54:35,441 INFO L93 Difference]: Finished difference Result 302 states and 489 transitions. [2020-10-14 04:54:35,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 04:54:35,443 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-14 04:54:35,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:54:35,457 INFO L225 Difference]: With dead ends: 302 [2020-10-14 04:54:35,457 INFO L226 Difference]: Without dead ends: 148 [2020-10-14 04:54:35,463 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:54:35,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-10-14 04:54:35,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 130. [2020-10-14 04:54:35,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-14 04:54:35,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 151 transitions. [2020-10-14 04:54:35,528 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 151 transitions. Word has length 14 [2020-10-14 04:54:35,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:54:35,529 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 151 transitions. [2020-10-14 04:54:35,529 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:54:35,529 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 151 transitions. [2020-10-14 04:54:35,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-14 04:54:35,533 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:54:35,533 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:54:35,534 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 04:54:35,534 INFO L427 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:54:35,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:54:35,535 INFO L82 PathProgramCache]: Analyzing trace with hash 151916718, now seen corresponding path program 1 times [2020-10-14 04:54:35,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:54:35,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1796141944] [2020-10-14 04:54:35,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:54:35,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:54:35,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:35,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:54:35,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-14 04:54:35,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:54:35,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 345 [2020-10-14 04:54:35,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:54:35,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:54:35,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:54:35,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:54:35,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 04:54:35,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:54:36,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:54:36,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:54:36,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:36,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:54:36,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:54:36,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:54:36,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 04:54:36,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:54:36,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:54:36,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:54:36,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:54:36,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:54:36,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:54:36,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 04:54:36,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:54:36,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:36,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:54:36,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 04:54:36,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:54:36,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 04:54:36,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:54:36,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:54:36,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:54:36,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:54:36,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 04:54:36,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:54:36,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:54:36,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:54:36,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:36,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:54:36,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 04:54:36,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:54:36,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 04:54:36,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:54:36,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:54:36,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:54:36,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:54:36,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:54:36,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:54:36,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 04:54:36,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:54:36,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:36,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:54:36,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:54:36,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:54:36,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 04:54:36,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:54:36,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:54:36,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:54:36,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:54:36,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:54:36,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:54:36,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:54:36,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:54:36,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:36,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:54:36,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:54:36,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:54:36,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:54:36,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:54:36,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:54:36,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:54:36,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:54:36,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:54:36,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:54:36,308 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 04:54:36,309 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1796141944] [2020-10-14 04:54:36,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:54:36,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 04:54:36,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804687627] [2020-10-14 04:54:36,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 04:54:36,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:54:36,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 04:54:36,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 04:54:36,312 INFO L87 Difference]: Start difference. First operand 130 states and 151 transitions. Second operand 8 states. [2020-10-14 04:54:37,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:54:37,052 INFO L93 Difference]: Finished difference Result 150 states and 179 transitions. [2020-10-14 04:54:37,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 04:54:37,053 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2020-10-14 04:54:37,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:54:37,055 INFO L225 Difference]: With dead ends: 150 [2020-10-14 04:54:37,056 INFO L226 Difference]: Without dead ends: 147 [2020-10-14 04:54:37,057 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-10-14 04:54:37,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-10-14 04:54:37,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 129. [2020-10-14 04:54:37,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-10-14 04:54:37,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 149 transitions. [2020-10-14 04:54:37,077 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 149 transitions. Word has length 34 [2020-10-14 04:54:37,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:54:37,077 INFO L479 AbstractCegarLoop]: Abstraction has 129 states and 149 transitions. [2020-10-14 04:54:37,077 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 04:54:37,078 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 149 transitions. [2020-10-14 04:54:37,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-14 04:54:37,079 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:54:37,079 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:54:37,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 04:54:37,079 INFO L427 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:54:37,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:54:37,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1411633869, now seen corresponding path program 1 times [2020-10-14 04:54:37,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:54:37,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [872877987] [2020-10-14 04:54:37,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:54:37,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:54:37,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:37,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:54:37,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-14 04:54:37,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:54:37,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 421 [2020-10-14 04:54:37,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:54:37,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:54:37,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 04:54:37,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:54:37,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-14 04:54:37,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:54:37,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:54:37,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:54:37,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:37,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:54:37,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:54:37,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:54:37,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 04:54:37,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:54:37,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:54:37,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:54:37,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:54:37,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:54:37,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:54:37,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 04:54:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:54:37,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:37,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:54:37,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 04:54:37,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:54:37,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-10-14 04:54:37,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:54:37,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:54:37,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 04:54:37,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:54:37,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 04:54:37,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:54:37,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:54:37,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:54:37,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:38,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:54:38,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 04:54:38,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:54:38,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-10-14 04:54:38,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:54:38,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:54:38,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 04:54:38,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:54:38,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 04:54:38,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:54:38,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 04:54:38,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:54:38,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:38,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:54:38,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:54:38,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:54:38,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 04:54:38,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:54:38,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:54:38,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:54:38,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:54:38,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 04:54:38,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 04:54:38,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:54:38,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:54:38,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:38,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:54:38,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:54:38,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:54:38,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 04:54:38,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:54:38,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:54:38,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:54:38,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:54:38,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 04:54:38,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:54:38,485 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 04:54:38,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [872877987] [2020-10-14 04:54:38,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:54:38,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-14 04:54:38,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433221968] [2020-10-14 04:54:38,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-14 04:54:38,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:54:38,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-14 04:54:38,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2020-10-14 04:54:38,489 INFO L87 Difference]: Start difference. First operand 129 states and 149 transitions. Second operand 16 states. [2020-10-14 04:54:40,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:54:40,912 INFO L93 Difference]: Finished difference Result 244 states and 291 transitions. [2020-10-14 04:54:40,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 04:54:40,912 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 37 [2020-10-14 04:54:40,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:54:40,916 INFO L225 Difference]: With dead ends: 244 [2020-10-14 04:54:40,916 INFO L226 Difference]: Without dead ends: 238 [2020-10-14 04:54:40,917 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=196, Invalid=860, Unknown=0, NotChecked=0, Total=1056 [2020-10-14 04:54:40,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-10-14 04:54:40,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 209. [2020-10-14 04:54:40,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-10-14 04:54:40,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 251 transitions. [2020-10-14 04:54:40,947 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 251 transitions. Word has length 37 [2020-10-14 04:54:40,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:54:40,948 INFO L479 AbstractCegarLoop]: Abstraction has 209 states and 251 transitions. [2020-10-14 04:54:40,948 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-14 04:54:40,948 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 251 transitions. [2020-10-14 04:54:40,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-14 04:54:40,949 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:54:40,949 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:54:40,949 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 04:54:40,950 INFO L427 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:54:40,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:54:40,950 INFO L82 PathProgramCache]: Analyzing trace with hash 2082496891, now seen corresponding path program 1 times [2020-10-14 04:54:40,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:54:40,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1214861684] [2020-10-14 04:54:40,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:54:40,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:54:41,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:41,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:54:41,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-14 04:54:41,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:54:41,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 820 [2020-10-14 04:54:41,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:54:41,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:54:41,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-14 04:54:41,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:54:41,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-14 04:54:41,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:54:41,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:54:41,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:54:41,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:41,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:54:41,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:54:41,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:54:41,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 04:54:41,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:54:41,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:54:41,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:54:41,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:54:41,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:54:41,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:54:41,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 04:54:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:54:41,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:42,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:54:42,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 04:54:42,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:54:42,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 326 [2020-10-14 04:54:42,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:54:42,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:54:42,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 04:54:42,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:54:42,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 04:54:42,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:54:42,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:54:42,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:54:42,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:42,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:54:42,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 04:54:42,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:54:42,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 315 [2020-10-14 04:54:42,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:54:42,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:54:42,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 04:54:42,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:54:42,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 04:54:42,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:54:42,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 04:54:42,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:54:42,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:43,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:54:43,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:54:43,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:54:43,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-14 04:54:43,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:54:43,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:54:43,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 04:54:43,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:54:43,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 04:54:43,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:54:43,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:54:43,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:54:43,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:43,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:54:43,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:54:43,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:54:43,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 04:54:43,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:54:43,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:54:43,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:54:43,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:54:43,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 04:54:43,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:54:43,284 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 04:54:43,284 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1214861684] [2020-10-14 04:54:43,284 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:54:43,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-14 04:54:43,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316510132] [2020-10-14 04:54:43,285 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-14 04:54:43,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:54:43,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-14 04:54:43,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2020-10-14 04:54:43,286 INFO L87 Difference]: Start difference. First operand 209 states and 251 transitions. Second operand 18 states. [2020-10-14 04:54:46,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:54:46,673 INFO L93 Difference]: Finished difference Result 329 states and 399 transitions. [2020-10-14 04:54:46,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-14 04:54:46,675 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 40 [2020-10-14 04:54:46,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:54:46,678 INFO L225 Difference]: With dead ends: 329 [2020-10-14 04:54:46,678 INFO L226 Difference]: Without dead ends: 326 [2020-10-14 04:54:46,680 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=207, Invalid=1199, Unknown=0, NotChecked=0, Total=1406 [2020-10-14 04:54:46,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-10-14 04:54:46,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 290. [2020-10-14 04:54:46,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-10-14 04:54:46,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 353 transitions. [2020-10-14 04:54:46,720 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 353 transitions. Word has length 40 [2020-10-14 04:54:46,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:54:46,720 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 353 transitions. [2020-10-14 04:54:46,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-14 04:54:46,721 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 353 transitions. [2020-10-14 04:54:46,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-14 04:54:46,722 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:54:46,722 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:54:46,722 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 04:54:46,723 INFO L427 AbstractCegarLoop]: === Iteration 5 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:54:46,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:54:46,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1376068061, now seen corresponding path program 1 times [2020-10-14 04:54:46,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:54:46,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1054402473] [2020-10-14 04:54:46,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:54:46,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:54:46,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:47,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:54:47,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-14 04:54:47,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:54:47,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 588 [2020-10-14 04:54:47,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:54:47,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:54:47,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-14 04:54:47,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:54:47,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-14 04:54:47,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:54:47,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:54:47,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:54:47,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:47,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:54:47,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:54:47,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:54:47,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 04:54:47,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:54:47,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:54:47,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:54:47,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:54:47,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:54:47,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:54:47,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 04:54:47,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:54:47,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:47,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:54:47,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 04:54:47,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:54:47,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-10-14 04:54:47,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:54:47,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:54:47,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 04:54:47,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:54:47,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 04:54:47,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:54:47,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:54:47,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:54:47,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:48,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:54:48,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 04:54:48,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:54:48,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-14 04:54:48,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:54:48,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:54:48,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 04:54:48,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:54:48,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 04:54:48,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:54:48,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 04:54:48,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:54:48,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:48,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:54:48,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:54:48,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:54:48,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 04:54:48,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:54:48,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:54:48,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 04:54:48,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:54:48,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 04:54:48,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:54:48,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:54:48,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:54:48,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:48,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:54:48,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:54:48,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:54:48,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 04:54:48,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:54:48,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:54:48,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:54:48,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:54:48,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 04:54:48,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:54:48,505 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 04:54:48,506 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1054402473] [2020-10-14 04:54:48,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:54:48,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-14 04:54:48,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920465508] [2020-10-14 04:54:48,507 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 04:54:48,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:54:48,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 04:54:48,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2020-10-14 04:54:48,508 INFO L87 Difference]: Start difference. First operand 290 states and 353 transitions. Second operand 19 states. [2020-10-14 04:54:51,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:54:51,393 INFO L93 Difference]: Finished difference Result 320 states and 386 transitions. [2020-10-14 04:54:51,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 04:54:51,394 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 43 [2020-10-14 04:54:51,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:54:51,398 INFO L225 Difference]: With dead ends: 320 [2020-10-14 04:54:51,398 INFO L226 Difference]: Without dead ends: 317 [2020-10-14 04:54:51,399 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=203, Invalid=1057, Unknown=0, NotChecked=0, Total=1260 [2020-10-14 04:54:51,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-10-14 04:54:51,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 290. [2020-10-14 04:54:51,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-10-14 04:54:51,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 352 transitions. [2020-10-14 04:54:51,433 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 352 transitions. Word has length 43 [2020-10-14 04:54:51,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:54:51,434 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 352 transitions. [2020-10-14 04:54:51,434 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 04:54:51,434 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 352 transitions. [2020-10-14 04:54:51,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-14 04:54:51,436 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:54:51,436 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:54:51,436 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 04:54:51,436 INFO L427 AbstractCegarLoop]: === Iteration 6 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:54:51,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:54:51,437 INFO L82 PathProgramCache]: Analyzing trace with hash 796266502, now seen corresponding path program 1 times [2020-10-14 04:54:51,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:54:51,437 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1017241140] [2020-10-14 04:54:51,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:54:51,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:54:51,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:52,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:54:52,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-14 04:54:52,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:54:52,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 686 [2020-10-14 04:54:52,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:54:52,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:54:52,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 04:54:52,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:54:52,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 04:54:52,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 04:54:52,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:54:52,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:54:52,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:52,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:54:52,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:54:52,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:54:52,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 04:54:52,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:54:52,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:54:52,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:54:52,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:54:52,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:54:52,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:54:52,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 04:54:52,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:54:52,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:52,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:54:52,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 04:54:52,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:54:52,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 304 [2020-10-14 04:54:52,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:54:52,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:54:52,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 04:54:52,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:54:52,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 04:54:52,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:54:52,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:54:52,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:54:52,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:53,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:54:53,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 04:54:53,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:54:53,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-10-14 04:54:53,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:54:53,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:54:53,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 04:54:53,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:54:53,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 04:54:53,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:54:53,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 04:54:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:54:53,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:53,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:54:53,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:54:53,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:54:53,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-14 04:54:53,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:54:53,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:54:53,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 04:54:53,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:54:53,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 04:54:53,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:54:53,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:54:53,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:54:53,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:53,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:54:53,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:54:53,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:54:53,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 04:54:53,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:54:53,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:54:53,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:54:53,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:54:53,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 04:54:53,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:54:53,745 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 04:54:53,745 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1017241140] [2020-10-14 04:54:53,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:54:53,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-14 04:54:53,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514531861] [2020-10-14 04:54:53,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 04:54:53,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:54:53,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 04:54:53,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2020-10-14 04:54:53,748 INFO L87 Difference]: Start difference. First operand 290 states and 352 transitions. Second operand 19 states. [2020-10-14 04:54:57,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:54:57,277 INFO L93 Difference]: Finished difference Result 323 states and 389 transitions. [2020-10-14 04:54:57,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-14 04:54:57,279 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 46 [2020-10-14 04:54:57,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:54:57,282 INFO L225 Difference]: With dead ends: 323 [2020-10-14 04:54:57,282 INFO L226 Difference]: Without dead ends: 320 [2020-10-14 04:54:57,284 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=189, Invalid=1217, Unknown=0, NotChecked=0, Total=1406 [2020-10-14 04:54:57,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-10-14 04:54:57,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 290. [2020-10-14 04:54:57,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-10-14 04:54:57,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 351 transitions. [2020-10-14 04:54:57,313 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 351 transitions. Word has length 46 [2020-10-14 04:54:57,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:54:57,314 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 351 transitions. [2020-10-14 04:54:57,314 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 04:54:57,314 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 351 transitions. [2020-10-14 04:54:57,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-14 04:54:57,320 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:54:57,321 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:54:57,321 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 04:54:57,321 INFO L427 AbstractCegarLoop]: === Iteration 7 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:54:57,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:54:57,321 INFO L82 PathProgramCache]: Analyzing trace with hash 262392368, now seen corresponding path program 1 times [2020-10-14 04:54:57,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:54:57,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2013374324] [2020-10-14 04:54:57,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:54:57,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:54:57,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:57,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:58,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:54:58,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-14 04:54:58,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:54:58,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1222 [2020-10-14 04:54:58,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:54:58,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:54:58,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-14 04:54:58,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:54:58,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 04:54:58,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:54:58,891 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 32 [2020-10-14 04:54:59,032 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2020-10-14 04:54:59,175 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 33 [2020-10-14 04:54:59,340 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 35 [2020-10-14 04:54:59,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:54:59,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:54:59,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:54:59,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:54:59,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:54:59,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:54:59,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 04:54:59,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:54:59,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:54:59,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:54:59,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:54:59,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:54:59,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:54:59,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 04:54:59,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:54:59,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:00,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:00,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 04:55:00,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:00,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 391 [2020-10-14 04:55:00,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:00,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:00,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 04:55:00,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:55:00,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 04:55:00,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:55:00,855 WARN L193 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 45 [2020-10-14 04:55:00,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:55:00,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:00,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:01,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:01,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 04:55:01,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:01,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 339 [2020-10-14 04:55:01,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:01,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:01,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 04:55:01,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:55:01,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 04:55:01,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:55:02,421 WARN L193 SmtUtils]: Spent 879.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 106 [2020-10-14 04:55:02,591 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 45 [2020-10-14 04:55:02,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 04:55:02,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:02,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:02,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:02,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:55:02,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:02,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-10-14 04:55:02,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:02,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:02,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 04:55:02,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:55:02,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 04:55:02,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:55:04,008 WARN L193 SmtUtils]: Spent 747.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 82 [2020-10-14 04:55:04,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:55:04,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:04,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:04,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:04,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:55:04,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:04,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 04:55:04,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:04,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:04,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:55:04,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:55:04,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 04:55:04,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:55:05,004 WARN L193 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 67 [2020-10-14 04:55:05,055 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 04:55:05,056 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2013374324] [2020-10-14 04:55:05,056 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:55:05,056 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-14 04:55:05,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571492127] [2020-10-14 04:55:05,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-14 04:55:05,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:55:05,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-14 04:55:05,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2020-10-14 04:55:05,058 INFO L87 Difference]: Start difference. First operand 290 states and 351 transitions. Second operand 23 states. [2020-10-14 04:55:05,437 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 45 [2020-10-14 04:55:05,589 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2020-10-14 04:55:06,167 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-14 04:55:06,600 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 111 [2020-10-14 04:55:06,991 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 95 [2020-10-14 04:55:07,497 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 04:55:07,684 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2020-10-14 04:55:08,273 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-14 04:55:08,809 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 120 [2020-10-14 04:55:08,998 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-14 04:55:09,189 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-14 04:55:09,417 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-14 04:55:09,582 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-14 04:55:09,762 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-14 04:55:12,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:55:12,503 INFO L93 Difference]: Finished difference Result 317 states and 380 transitions. [2020-10-14 04:55:12,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-14 04:55:12,504 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 49 [2020-10-14 04:55:12,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:55:12,507 INFO L225 Difference]: With dead ends: 317 [2020-10-14 04:55:12,509 INFO L226 Difference]: Without dead ends: 314 [2020-10-14 04:55:12,511 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=282, Invalid=1610, Unknown=0, NotChecked=0, Total=1892 [2020-10-14 04:55:12,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-10-14 04:55:12,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 290. [2020-10-14 04:55:12,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-10-14 04:55:12,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 350 transitions. [2020-10-14 04:55:12,550 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 350 transitions. Word has length 49 [2020-10-14 04:55:12,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:55:12,550 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 350 transitions. [2020-10-14 04:55:12,550 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-14 04:55:12,551 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 350 transitions. [2020-10-14 04:55:12,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-14 04:55:12,557 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:55:12,557 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:55:12,557 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 04:55:12,557 INFO L427 AbstractCegarLoop]: === Iteration 8 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:55:12,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:55:12,558 INFO L82 PathProgramCache]: Analyzing trace with hash -103719498, now seen corresponding path program 1 times [2020-10-14 04:55:12,558 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:55:12,558 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1650271319] [2020-10-14 04:55:12,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:55:12,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:12,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:13,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:13,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 04:55:13,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:13,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 586 [2020-10-14 04:55:13,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:13,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:13,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 04:55:13,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:55:13,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 04:55:13,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:55:13,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:55:13,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:13,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:13,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:13,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:55:13,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:13,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 04:55:13,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:13,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:13,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:55:13,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:55:13,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:55:13,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:55:13,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 04:55:13,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:13,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:13,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:13,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 04:55:13,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:13,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-10-14 04:55:13,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:13,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:13,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 04:55:13,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:55:13,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 04:55:13,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:55:13,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:55:13,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:13,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:13,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:13,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 04:55:13,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:13,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-14 04:55:13,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:13,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:13,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 04:55:13,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:55:13,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 04:55:13,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:55:14,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 04:55:14,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:14,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:14,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:14,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:55:14,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:14,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 04:55:14,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:14,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:14,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 04:55:14,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:55:14,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 04:55:14,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:55:14,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:55:14,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:14,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:14,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:14,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:55:14,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:14,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 04:55:14,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:14,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:14,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:55:14,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:55:14,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 04:55:14,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:55:14,309 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 04:55:14,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1650271319] [2020-10-14 04:55:14,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:55:14,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-14 04:55:14,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560031016] [2020-10-14 04:55:14,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 04:55:14,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:55:14,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 04:55:14,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2020-10-14 04:55:14,312 INFO L87 Difference]: Start difference. First operand 290 states and 350 transitions. Second operand 19 states. [2020-10-14 04:55:17,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:55:17,939 INFO L93 Difference]: Finished difference Result 325 states and 391 transitions. [2020-10-14 04:55:17,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-14 04:55:17,940 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 52 [2020-10-14 04:55:17,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:55:17,944 INFO L225 Difference]: With dead ends: 325 [2020-10-14 04:55:17,944 INFO L226 Difference]: Without dead ends: 322 [2020-10-14 04:55:17,945 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=287, Invalid=1519, Unknown=0, NotChecked=0, Total=1806 [2020-10-14 04:55:17,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2020-10-14 04:55:17,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 290. [2020-10-14 04:55:17,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-10-14 04:55:17,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 349 transitions. [2020-10-14 04:55:17,974 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 349 transitions. Word has length 52 [2020-10-14 04:55:17,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:55:17,974 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 349 transitions. [2020-10-14 04:55:17,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 04:55:17,975 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 349 transitions. [2020-10-14 04:55:17,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-14 04:55:17,976 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:55:17,976 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:55:17,976 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 04:55:17,976 INFO L427 AbstractCegarLoop]: === Iteration 9 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:55:17,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:55:17,977 INFO L82 PathProgramCache]: Analyzing trace with hash 354184987, now seen corresponding path program 1 times [2020-10-14 04:55:17,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:55:17,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2034793284] [2020-10-14 04:55:17,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:55:18,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:18,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:20,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:20,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 04:55:20,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:20,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2255 [2020-10-14 04:55:20,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:20,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:20,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-14 04:55:20,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:55:20,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 04:55:20,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:55:20,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:55:20,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:20,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:20,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:20,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:55:20,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:20,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 04:55:20,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:20,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:20,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:55:20,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:55:20,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:55:20,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:55:20,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 04:55:20,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:20,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:21,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:21,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-14 04:55:21,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:21,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1385 [2020-10-14 04:55:21,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:21,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:21,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-14 04:55:21,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:55:21,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 04:55:21,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:55:22,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:55:22,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:22,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:22,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:22,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 04:55:22,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:22,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-14 04:55:22,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:22,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:22,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 04:55:22,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:55:22,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 04:55:22,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:55:22,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 04:55:22,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:22,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:22,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:22,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:55:22,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:22,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 04:55:22,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:22,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:22,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 04:55:22,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:55:22,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 04:55:22,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:55:22,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:55:22,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:22,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:22,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:22,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:55:22,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:22,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 04:55:22,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:22,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:22,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:55:22,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:55:22,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 04:55:22,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:55:23,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 04:55:23,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:23,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:23,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:23,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 04:55:23,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:23,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-10-14 04:55:23,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:23,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:23,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 04:55:23,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:55:23,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 04:55:23,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:55:23,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 04:55:23,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:23,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:23,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:23,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:55:23,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:23,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 04:55:23,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:23,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:23,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 04:55:23,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:55:23,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 04:55:23,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:55:23,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:55:23,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:23,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:23,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:23,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:55:23,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:23,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 04:55:23,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:23,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:23,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:55:23,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:55:23,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 04:55:23,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:55:24,320 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 33 [2020-10-14 04:55:24,565 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 04:55:24,565 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2034793284] [2020-10-14 04:55:24,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:55:24,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-14 04:55:24,566 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481395871] [2020-10-14 04:55:24,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-14 04:55:24,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:55:24,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-14 04:55:24,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=611, Unknown=0, NotChecked=0, Total=702 [2020-10-14 04:55:24,567 INFO L87 Difference]: Start difference. First operand 290 states and 349 transitions. Second operand 27 states. [2020-10-14 04:55:25,343 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-14 04:55:25,548 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-14 04:55:25,936 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-10-14 04:55:26,127 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-10-14 04:55:27,532 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-14 04:55:30,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:55:30,995 INFO L93 Difference]: Finished difference Result 415 states and 500 transitions. [2020-10-14 04:55:30,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-14 04:55:30,996 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 61 [2020-10-14 04:55:30,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:55:30,998 INFO L225 Difference]: With dead ends: 415 [2020-10-14 04:55:30,999 INFO L226 Difference]: Without dead ends: 412 [2020-10-14 04:55:31,002 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=364, Invalid=2288, Unknown=0, NotChecked=0, Total=2652 [2020-10-14 04:55:31,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2020-10-14 04:55:31,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 383. [2020-10-14 04:55:31,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2020-10-14 04:55:31,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 463 transitions. [2020-10-14 04:55:31,052 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 463 transitions. Word has length 61 [2020-10-14 04:55:31,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:55:31,052 INFO L479 AbstractCegarLoop]: Abstraction has 383 states and 463 transitions. [2020-10-14 04:55:31,052 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-14 04:55:31,052 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 463 transitions. [2020-10-14 04:55:31,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-14 04:55:31,054 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:55:31,054 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:55:31,054 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 04:55:31,054 INFO L427 AbstractCegarLoop]: === Iteration 10 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:55:31,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:55:31,055 INFO L82 PathProgramCache]: Analyzing trace with hash -2004966405, now seen corresponding path program 1 times [2020-10-14 04:55:31,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:55:31,055 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [212735310] [2020-10-14 04:55:31,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:55:31,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:31,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:31,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:31,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 04:55:31,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:31,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 570 [2020-10-14 04:55:31,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:31,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:31,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-14 04:55:31,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:55:31,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 04:55:31,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:55:31,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:55:31,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:31,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:31,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:31,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:55:31,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:31,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 04:55:31,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:31,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:31,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:55:31,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:55:31,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:55:31,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:55:31,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 04:55:32,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:32,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:32,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:32,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 04:55:32,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:32,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-10-14 04:55:32,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:32,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:32,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 04:55:32,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:55:32,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 04:55:32,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:55:32,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:55:32,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:32,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:32,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:32,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 04:55:32,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:32,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-14 04:55:32,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:32,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:32,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 04:55:32,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:55:32,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 04:55:32,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:55:32,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 04:55:32,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:32,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:32,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:32,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:55:32,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:32,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 04:55:32,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:32,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:32,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 04:55:32,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:55:32,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 04:55:32,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:55:32,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:55:32,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:32,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:32,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:32,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:55:32,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:32,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 04:55:32,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:32,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:32,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:55:32,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:55:32,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 04:55:32,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:55:33,098 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 04:55:33,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [212735310] [2020-10-14 04:55:33,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:55:33,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-14 04:55:33,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154231157] [2020-10-14 04:55:33,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-14 04:55:33,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:55:33,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-14 04:55:33,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2020-10-14 04:55:33,100 INFO L87 Difference]: Start difference. First operand 383 states and 463 transitions. Second operand 20 states. [2020-10-14 04:55:37,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:55:37,449 INFO L93 Difference]: Finished difference Result 403 states and 484 transitions. [2020-10-14 04:55:37,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-14 04:55:37,450 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 55 [2020-10-14 04:55:37,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:55:37,453 INFO L225 Difference]: With dead ends: 403 [2020-10-14 04:55:37,453 INFO L226 Difference]: Without dead ends: 400 [2020-10-14 04:55:37,454 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=223, Invalid=1337, Unknown=0, NotChecked=0, Total=1560 [2020-10-14 04:55:37,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2020-10-14 04:55:37,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 383. [2020-10-14 04:55:37,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2020-10-14 04:55:37,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 462 transitions. [2020-10-14 04:55:37,490 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 462 transitions. Word has length 55 [2020-10-14 04:55:37,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:55:37,490 INFO L479 AbstractCegarLoop]: Abstraction has 383 states and 462 transitions. [2020-10-14 04:55:37,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-14 04:55:37,490 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 462 transitions. [2020-10-14 04:55:37,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-14 04:55:37,491 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:55:37,492 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:55:37,492 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 04:55:37,492 INFO L427 AbstractCegarLoop]: === Iteration 11 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:55:37,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:55:37,492 INFO L82 PathProgramCache]: Analyzing trace with hash -8497533, now seen corresponding path program 1 times [2020-10-14 04:55:37,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:55:37,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1293208753] [2020-10-14 04:55:37,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:55:37,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:37,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:38,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:38,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 04:55:38,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:38,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 492 [2020-10-14 04:55:38,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:38,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:38,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-14 04:55:38,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:55:38,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 04:55:38,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:55:38,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:55:38,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:38,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:38,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:38,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:55:38,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:38,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:55:38,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:38,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:38,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:55:38,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:55:38,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:55:38,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:55:38,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 04:55:38,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:38,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:38,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:38,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 04:55:38,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:38,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-14 04:55:38,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:38,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:38,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 04:55:38,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:55:38,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 04:55:38,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:55:38,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:55:38,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:38,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:38,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:38,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 04:55:38,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:38,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-14 04:55:38,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:38,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:38,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 04:55:38,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:55:38,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 04:55:38,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:55:38,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 04:55:38,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:38,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:38,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:38,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:55:38,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:38,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 04:55:38,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:38,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:38,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 04:55:38,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:55:38,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 04:55:38,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:55:39,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:55:39,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:39,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:39,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:39,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:55:39,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:39,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 04:55:39,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:39,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:39,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:55:39,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:55:39,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 04:55:39,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:55:39,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:55:39,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1293208753] [2020-10-14 04:55:39,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:55:39,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-14 04:55:39,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595390812] [2020-10-14 04:55:39,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-14 04:55:39,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:55:39,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-14 04:55:39,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2020-10-14 04:55:39,158 INFO L87 Difference]: Start difference. First operand 383 states and 462 transitions. Second operand 20 states. [2020-10-14 04:55:43,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:55:43,316 INFO L93 Difference]: Finished difference Result 402 states and 482 transitions. [2020-10-14 04:55:43,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-14 04:55:43,318 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 58 [2020-10-14 04:55:43,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:55:43,320 INFO L225 Difference]: With dead ends: 402 [2020-10-14 04:55:43,321 INFO L226 Difference]: Without dead ends: 399 [2020-10-14 04:55:43,322 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=223, Invalid=1337, Unknown=0, NotChecked=0, Total=1560 [2020-10-14 04:55:43,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-10-14 04:55:43,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 383. [2020-10-14 04:55:43,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2020-10-14 04:55:43,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 461 transitions. [2020-10-14 04:55:43,362 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 461 transitions. Word has length 58 [2020-10-14 04:55:43,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:55:43,363 INFO L479 AbstractCegarLoop]: Abstraction has 383 states and 461 transitions. [2020-10-14 04:55:43,363 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-14 04:55:43,363 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 461 transitions. [2020-10-14 04:55:43,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-14 04:55:43,364 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:55:43,364 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:55:43,364 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 04:55:43,364 INFO L427 AbstractCegarLoop]: === Iteration 12 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:55:43,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:55:43,365 INFO L82 PathProgramCache]: Analyzing trace with hash 102928872, now seen corresponding path program 1 times [2020-10-14 04:55:43,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:55:43,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [559437350] [2020-10-14 04:55:43,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:55:43,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:43,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:43,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:44,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:44,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-14 04:55:44,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:55:44,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1142 [2020-10-14 04:55:44,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:44,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:44,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:55:44,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 04:55:44,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 04:55:44,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:55:44,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:55:44,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:44,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:44,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:44,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:55:44,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:44,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:55:44,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:44,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:44,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:55:44,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:55:44,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:55:44,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:55:44,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 04:55:44,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:44,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:44,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:44,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 04:55:44,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:44,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 04:55:44,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:44,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:44,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:55:44,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:55:44,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:55:44,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:55:44,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:55:44,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:44,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:44,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:44,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 04:55:44,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:44,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 04:55:44,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:44,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:44,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:55:44,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:55:44,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:55:44,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:55:44,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 04:55:44,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:44,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:44,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:44,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:55:44,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:44,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 04:55:44,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:44,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:44,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:55:44,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:55:44,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:55:44,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:55:44,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:55:44,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:44,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:44,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:44,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:55:44,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:44,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:55:44,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:44,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:44,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:55:44,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:55:44,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:55:44,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:55:44,680 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 04:55:44,681 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [559437350] [2020-10-14 04:55:44,681 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:55:44,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 04:55:44,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789599968] [2020-10-14 04:55:44,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 04:55:44,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:55:44,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 04:55:44,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 04:55:44,682 INFO L87 Difference]: Start difference. First operand 383 states and 461 transitions. Second operand 8 states. [2020-10-14 04:55:45,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:55:45,517 INFO L93 Difference]: Finished difference Result 386 states and 464 transitions. [2020-10-14 04:55:45,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 04:55:45,518 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2020-10-14 04:55:45,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:55:45,523 INFO L225 Difference]: With dead ends: 386 [2020-10-14 04:55:45,523 INFO L226 Difference]: Without dead ends: 383 [2020-10-14 04:55:45,524 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:55:45,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2020-10-14 04:55:45,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 382. [2020-10-14 04:55:45,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2020-10-14 04:55:45,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 456 transitions. [2020-10-14 04:55:45,558 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 456 transitions. Word has length 61 [2020-10-14 04:55:45,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:55:45,558 INFO L479 AbstractCegarLoop]: Abstraction has 382 states and 456 transitions. [2020-10-14 04:55:45,558 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 04:55:45,558 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 456 transitions. [2020-10-14 04:55:45,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-14 04:55:45,559 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:55:45,559 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 04:55:45,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 04:55:45,560 INFO L427 AbstractCegarLoop]: === Iteration 13 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:55:45,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:55:45,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1448055677, now seen corresponding path program 1 times [2020-10-14 04:55:45,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:55:45,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [791535730] [2020-10-14 04:55:45,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:55:45,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:45,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:47,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:47,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 04:55:47,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:47,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1744 [2020-10-14 04:55:47,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:47,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:47,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-14 04:55:47,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:55:47,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 04:55:47,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:55:47,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:55:47,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:47,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:47,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:47,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:55:47,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:47,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:55:47,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:47,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:47,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:55:47,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:55:47,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:55:47,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:55:47,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 04:55:47,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:47,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:48,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:48,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-14 04:55:48,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:48,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 866 [2020-10-14 04:55:48,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:48,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:48,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-14 04:55:48,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:55:48,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 04:55:48,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:55:48,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:55:48,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:48,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:48,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:48,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 04:55:48,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:48,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 04:55:48,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:48,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:48,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 04:55:48,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:55:48,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 04:55:48,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:55:48,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 04:55:48,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:48,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:48,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:48,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:55:48,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:48,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 04:55:48,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:48,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:48,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 04:55:48,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:55:48,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 04:55:48,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:55:49,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:55:49,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:49,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:49,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:49,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:55:49,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:49,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 04:55:49,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:49,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:49,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:55:49,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:55:49,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 04:55:49,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:55:49,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 04:55:49,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:49,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:49,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:49,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 04:55:49,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:49,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-14 04:55:49,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:49,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:49,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 04:55:49,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:55:49,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 04:55:49,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:55:49,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 04:55:49,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:49,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:49,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:49,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:55:49,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:49,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-14 04:55:49,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:49,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:49,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 04:55:49,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:55:49,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 04:55:49,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:55:49,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:55:49,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:49,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:49,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:49,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:55:49,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:49,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 04:55:49,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:49,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:49,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:55:49,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:55:49,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 04:55:49,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:55:49,769 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 04:55:49,769 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [791535730] [2020-10-14 04:55:49,769 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:55:49,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-14 04:55:49,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869932063] [2020-10-14 04:55:49,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-14 04:55:49,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:55:49,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-14 04:55:49,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=612, Unknown=0, NotChecked=0, Total=702 [2020-10-14 04:55:49,771 INFO L87 Difference]: Start difference. First operand 382 states and 456 transitions. Second operand 27 states. [2020-10-14 04:55:50,375 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2020-10-14 04:55:50,793 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-14 04:55:51,245 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2020-10-14 04:55:56,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:55:56,426 INFO L93 Difference]: Finished difference Result 435 states and 521 transitions. [2020-10-14 04:55:56,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-14 04:55:56,427 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 64 [2020-10-14 04:55:56,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:55:56,430 INFO L225 Difference]: With dead ends: 435 [2020-10-14 04:55:56,430 INFO L226 Difference]: Without dead ends: 432 [2020-10-14 04:55:56,432 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 638 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=468, Invalid=2838, Unknown=0, NotChecked=0, Total=3306 [2020-10-14 04:55:56,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2020-10-14 04:55:56,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 390. [2020-10-14 04:55:56,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2020-10-14 04:55:56,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 468 transitions. [2020-10-14 04:55:56,472 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 468 transitions. Word has length 64 [2020-10-14 04:55:56,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:55:56,472 INFO L479 AbstractCegarLoop]: Abstraction has 390 states and 468 transitions. [2020-10-14 04:55:56,472 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-14 04:55:56,472 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 468 transitions. [2020-10-14 04:55:56,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 04:55:56,474 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:55:56,474 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 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 04:55:56,474 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 04:55:56,475 INFO L427 AbstractCegarLoop]: === Iteration 14 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:55:56,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:55:56,475 INFO L82 PathProgramCache]: Analyzing trace with hash -598121050, now seen corresponding path program 1 times [2020-10-14 04:55:56,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:55:56,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1956387659] [2020-10-14 04:55:56,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:55:56,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:56,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:58,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:58,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 04:55:58,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:58,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1895 [2020-10-14 04:55:58,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:58,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:58,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-14 04:55:58,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:55:58,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 04:55:58,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:55:58,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:55:58,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:58,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:55:58,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:55:58,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:55:58,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:55:58,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 04:55:58,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:55:58,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:55:58,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:55:58,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:55:58,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:55:58,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:55:58,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 04:55:58,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:55:58,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:00,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:00,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-14 04:56:00,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:00,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2207 [2020-10-14 04:56:00,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:00,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:00,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-14 04:56:00,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:56:00,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 04:56:00,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:01,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:56:01,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:01,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:01,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:01,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 04:56:01,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:01,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-14 04:56:01,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:01,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:01,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 04:56:01,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:56:01,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 04:56:01,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:56:01,728 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-10-14 04:56:01,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 04:56:01,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:01,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:01,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:01,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:56:01,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:01,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-14 04:56:01,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:01,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:01,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 04:56:01,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:56:01,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 04:56:01,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:02,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:56:02,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:02,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:02,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:02,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:56:02,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:02,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 04:56:02,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:02,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:02,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:56:02,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:56:02,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 04:56:02,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:02,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 04:56:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:02,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:02,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:02,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 04:56:02,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:02,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-14 04:56:02,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:02,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:02,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 04:56:02,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:56:02,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 04:56:02,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:56:02,787 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2020-10-14 04:56:02,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 04:56:02,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:02,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:02,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:02,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:56:02,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:02,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 04:56:02,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:02,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:02,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 04:56:02,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:56:02,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 04:56:02,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:56:03,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:56:03,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:03,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:03,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:03,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:56:03,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:03,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 04:56:03,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:03,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:03,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:56:03,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:56:03,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 04:56:03,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:03,487 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 04:56:03,487 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1956387659] [2020-10-14 04:56:03,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:56:03,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-14 04:56:03,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726344836] [2020-10-14 04:56:03,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-14 04:56:03,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:56:03,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-14 04:56:03,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2020-10-14 04:56:03,489 INFO L87 Difference]: Start difference. First operand 390 states and 468 transitions. Second operand 28 states. [2020-10-14 04:56:04,278 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2020-10-14 04:56:04,739 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 04:56:04,999 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-14 04:56:05,212 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-14 04:56:05,643 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-14 04:56:06,087 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2020-10-14 04:56:06,318 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65 [2020-10-14 04:56:07,332 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-14 04:56:07,539 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-14 04:56:11,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:56:11,263 INFO L93 Difference]: Finished difference Result 427 states and 507 transitions. [2020-10-14 04:56:11,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-14 04:56:11,264 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 67 [2020-10-14 04:56:11,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:56:11,269 INFO L225 Difference]: With dead ends: 427 [2020-10-14 04:56:11,269 INFO L226 Difference]: Without dead ends: 424 [2020-10-14 04:56:11,270 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=348, Invalid=2408, Unknown=0, NotChecked=0, Total=2756 [2020-10-14 04:56:11,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2020-10-14 04:56:11,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 390. [2020-10-14 04:56:11,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2020-10-14 04:56:11,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 467 transitions. [2020-10-14 04:56:11,310 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 467 transitions. Word has length 67 [2020-10-14 04:56:11,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:56:11,310 INFO L479 AbstractCegarLoop]: Abstraction has 390 states and 467 transitions. [2020-10-14 04:56:11,310 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-14 04:56:11,310 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 467 transitions. [2020-10-14 04:56:11,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-14 04:56:11,311 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:56:11,311 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 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 04:56:11,311 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 04:56:11,312 INFO L427 AbstractCegarLoop]: === Iteration 15 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:56:11,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:56:11,312 INFO L82 PathProgramCache]: Analyzing trace with hash 986517648, now seen corresponding path program 1 times [2020-10-14 04:56:11,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:56:11,313 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1466090985] [2020-10-14 04:56:11,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:56:11,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:11,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:13,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:13,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-14 04:56:13,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:13,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1673 [2020-10-14 04:56:13,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:13,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:13,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-14 04:56:13,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:56:13,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 04:56:13,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:13,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:56:13,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:13,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:13,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:13,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:56:13,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:13,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:56:13,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:13,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:13,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:56:13,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:56:13,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:56:13,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:13,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 04:56:13,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:13,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:14,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:14,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-14 04:56:14,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:14,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1117 [2020-10-14 04:56:14,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:14,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:14,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-14 04:56:14,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:56:14,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 04:56:14,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:14,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:56:14,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:14,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:14,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:14,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 04:56:14,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:14,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-14 04:56:14,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:14,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:14,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 04:56:14,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:56:14,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 04:56:14,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:14,915 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2020-10-14 04:56:15,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 04:56:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:15,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:15,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:15,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:56:15,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:15,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-14 04:56:15,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:15,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:15,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 04:56:15,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:56:15,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 04:56:15,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:56:15,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:56:15,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:15,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:15,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:15,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:56:15,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:15,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 04:56:15,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:15,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:15,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:56:15,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:56:15,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 04:56:15,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:15,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 04:56:15,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:15,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:15,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:15,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 04:56:15,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:15,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-14 04:56:15,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:15,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:15,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 04:56:15,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:56:15,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 04:56:15,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:15,842 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-10-14 04:56:15,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 04:56:15,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:15,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:16,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:16,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:56:16,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:16,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 04:56:16,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:16,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:16,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 04:56:16,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:56:16,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 04:56:16,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:16,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:56:16,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:16,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:16,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:16,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:56:16,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:16,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 04:56:16,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:16,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:16,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:56:16,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:56:16,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 04:56:16,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:16,400 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 04:56:16,401 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1466090985] [2020-10-14 04:56:16,401 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:56:16,401 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-14 04:56:16,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565992520] [2020-10-14 04:56:16,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-14 04:56:16,402 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:56:16,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-14 04:56:16,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2020-10-14 04:56:16,403 INFO L87 Difference]: Start difference. First operand 390 states and 467 transitions. Second operand 28 states. [2020-10-14 04:56:17,207 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 61 [2020-10-14 04:56:17,422 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 78 [2020-10-14 04:56:17,785 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-14 04:56:18,012 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-14 04:56:18,222 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-14 04:56:18,554 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2020-10-14 04:56:19,865 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-14 04:56:20,159 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-14 04:56:20,384 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-14 04:56:20,871 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-10-14 04:56:27,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:56:27,603 INFO L93 Difference]: Finished difference Result 469 states and 555 transitions. [2020-10-14 04:56:27,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-14 04:56:27,605 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 70 [2020-10-14 04:56:27,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:56:27,607 INFO L225 Difference]: With dead ends: 469 [2020-10-14 04:56:27,608 INFO L226 Difference]: Without dead ends: 466 [2020-10-14 04:56:27,613 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 749 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=386, Invalid=3274, Unknown=0, NotChecked=0, Total=3660 [2020-10-14 04:56:27,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2020-10-14 04:56:27,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 422. [2020-10-14 04:56:27,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2020-10-14 04:56:27,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 504 transitions. [2020-10-14 04:56:27,661 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 504 transitions. Word has length 70 [2020-10-14 04:56:27,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:56:27,662 INFO L479 AbstractCegarLoop]: Abstraction has 422 states and 504 transitions. [2020-10-14 04:56:27,662 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-14 04:56:27,662 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 504 transitions. [2020-10-14 04:56:27,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-14 04:56:27,663 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:56:27,663 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:56:27,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 04:56:27,663 INFO L427 AbstractCegarLoop]: === Iteration 16 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:56:27,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:56:27,664 INFO L82 PathProgramCache]: Analyzing trace with hash -388383920, now seen corresponding path program 1 times [2020-10-14 04:56:27,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:56:27,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1712479873] [2020-10-14 04:56:27,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:56:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:27,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:27,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:28,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:28,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 04:56:28,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:56:28,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 998 [2020-10-14 04:56:28,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:28,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:28,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:56:28,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 04:56:28,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 04:56:28,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:28,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:56:28,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:28,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:28,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:28,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:56:28,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:28,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:56:28,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:28,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:28,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:56:28,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:56:28,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:56:28,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:28,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 04:56:28,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:28,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:28,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:28,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 04:56:28,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:28,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 04:56:28,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:28,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:28,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:56:28,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:56:28,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:56:28,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:28,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:56:28,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:28,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:28,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:28,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 04:56:28,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:28,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 04:56:28,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:28,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:28,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:56:28,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:56:28,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:56:28,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:28,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 04:56:28,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:28,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:28,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:28,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:56:28,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:28,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:56:28,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:28,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:28,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:56:28,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:56:28,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:56:28,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:28,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:56:28,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:28,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:28,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:28,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:56:28,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:28,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:56:28,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:28,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:28,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:56:28,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:56:28,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:56:28,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:28,813 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 04:56:28,814 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1712479873] [2020-10-14 04:56:28,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:56:28,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 04:56:28,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090140271] [2020-10-14 04:56:28,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 04:56:28,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:56:28,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 04:56:28,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 04:56:28,815 INFO L87 Difference]: Start difference. First operand 422 states and 504 transitions. Second operand 8 states. [2020-10-14 04:56:29,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:56:29,690 INFO L93 Difference]: Finished difference Result 425 states and 507 transitions. [2020-10-14 04:56:29,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 04:56:29,691 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2020-10-14 04:56:29,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:56:29,693 INFO L225 Difference]: With dead ends: 425 [2020-10-14 04:56:29,693 INFO L226 Difference]: Without dead ends: 422 [2020-10-14 04:56:29,694 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:56:29,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2020-10-14 04:56:29,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 421. [2020-10-14 04:56:29,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-10-14 04:56:29,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 499 transitions. [2020-10-14 04:56:29,738 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 499 transitions. Word has length 64 [2020-10-14 04:56:29,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:56:29,738 INFO L479 AbstractCegarLoop]: Abstraction has 421 states and 499 transitions. [2020-10-14 04:56:29,738 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 04:56:29,738 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 499 transitions. [2020-10-14 04:56:29,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-14 04:56:29,739 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:56:29,739 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:56:29,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 04:56:29,740 INFO L427 AbstractCegarLoop]: === Iteration 17 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:56:29,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:56:29,740 INFO L82 PathProgramCache]: Analyzing trace with hash 421300410, now seen corresponding path program 1 times [2020-10-14 04:56:29,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:56:29,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1070538636] [2020-10-14 04:56:29,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:56:29,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:29,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:29,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:30,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:30,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 04:56:30,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:56:30,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 716 [2020-10-14 04:56:30,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:30,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:30,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:56:30,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-14 04:56:30,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 04:56:30,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:30,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:56:30,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:30,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:30,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:30,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:56:30,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:30,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:56:30,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:30,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:30,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:56:30,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:56:30,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:56:30,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:30,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 04:56:30,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:30,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:30,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:30,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 04:56:30,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:30,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 04:56:30,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:30,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:30,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:56:30,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:56:30,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:56:30,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:30,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:56:30,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:30,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:30,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:30,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 04:56:30,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:30,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 04:56:30,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:30,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:30,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:56:30,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:56:30,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:56:30,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:30,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 04:56:30,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:30,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:30,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:30,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:56:30,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:30,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 04:56:30,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:30,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:30,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:56:30,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:56:30,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:56:30,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:30,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:56:30,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:30,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:30,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:30,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:56:30,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:30,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:56:30,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:30,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:30,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:56:30,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:56:30,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:56:30,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:30,596 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 04:56:30,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1070538636] [2020-10-14 04:56:30,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:56:30,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 04:56:30,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135802094] [2020-10-14 04:56:30,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 04:56:30,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:56:30,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 04:56:30,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:56:30,598 INFO L87 Difference]: Start difference. First operand 421 states and 499 transitions. Second operand 6 states. [2020-10-14 04:56:31,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:56:31,144 INFO L93 Difference]: Finished difference Result 424 states and 502 transitions. [2020-10-14 04:56:31,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 04:56:31,144 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2020-10-14 04:56:31,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:56:31,147 INFO L225 Difference]: With dead ends: 424 [2020-10-14 04:56:31,147 INFO L226 Difference]: Without dead ends: 421 [2020-10-14 04:56:31,147 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-14 04:56:31,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-10-14 04:56:31,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 420. [2020-10-14 04:56:31,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 420 states. [2020-10-14 04:56:31,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 494 transitions. [2020-10-14 04:56:31,195 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 494 transitions. Word has length 66 [2020-10-14 04:56:31,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:56:31,195 INFO L479 AbstractCegarLoop]: Abstraction has 420 states and 494 transitions. [2020-10-14 04:56:31,195 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 04:56:31,196 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 494 transitions. [2020-10-14 04:56:31,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-14 04:56:31,196 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:56:31,197 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:56:31,197 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 04:56:31,197 INFO L427 AbstractCegarLoop]: === Iteration 18 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:56:31,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:56:31,198 INFO L82 PathProgramCache]: Analyzing trace with hash -1308230826, now seen corresponding path program 1 times [2020-10-14 04:56:31,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:56:31,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [320171151] [2020-10-14 04:56:31,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:56:31,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:31,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:32,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:32,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 04:56:32,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:32,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1631 [2020-10-14 04:56:32,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:32,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:32,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-14 04:56:32,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:56:32,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 04:56:32,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:32,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:56:32,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:32,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:32,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:32,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:56:32,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:32,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 04:56:32,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:32,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:32,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:56:32,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:56:32,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:56:32,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:33,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 04:56:33,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:33,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:33,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:33,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-14 04:56:33,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:33,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 702 [2020-10-14 04:56:33,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:33,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:33,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-14 04:56:33,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:56:33,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 04:56:33,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:33,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:56:33,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:33,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:33,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:33,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 04:56:33,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:33,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-14 04:56:33,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:33,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:33,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 04:56:33,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:56:33,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 04:56:33,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:34,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 04:56:34,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:34,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:34,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:34,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:56:34,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:34,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 04:56:34,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:34,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:34,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 04:56:34,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:56:34,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 04:56:34,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:34,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:56:34,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:34,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:34,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:34,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:56:34,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:34,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 04:56:34,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:34,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:34,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:56:34,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:56:34,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 04:56:34,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:34,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 04:56:34,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:34,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:34,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:34,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 04:56:34,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:34,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-14 04:56:34,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:34,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:34,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 04:56:34,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:56:34,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 04:56:34,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:34,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 04:56:34,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:34,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:34,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:34,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:56:34,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:34,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 04:56:34,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:34,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:34,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 04:56:34,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:56:34,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 04:56:34,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:35,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:56:35,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:35,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:35,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:35,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:56:35,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:35,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 04:56:35,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:35,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:35,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:56:35,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:56:35,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 04:56:35,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:35,155 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 04:56:35,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [320171151] [2020-10-14 04:56:35,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:56:35,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-14 04:56:35,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162872783] [2020-10-14 04:56:35,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-14 04:56:35,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:56:35,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-14 04:56:35,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=667, Unknown=0, NotChecked=0, Total=756 [2020-10-14 04:56:35,158 INFO L87 Difference]: Start difference. First operand 420 states and 494 transitions. Second operand 28 states. [2020-10-14 04:56:35,833 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2020-10-14 04:56:36,669 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2020-10-14 04:56:36,849 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2020-10-14 04:56:37,589 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-14 04:56:41,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:56:41,220 INFO L93 Difference]: Finished difference Result 450 states and 526 transitions. [2020-10-14 04:56:41,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-14 04:56:41,221 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 73 [2020-10-14 04:56:41,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:56:41,225 INFO L225 Difference]: With dead ends: 450 [2020-10-14 04:56:41,225 INFO L226 Difference]: Without dead ends: 447 [2020-10-14 04:56:41,226 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 613 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=465, Invalid=2841, Unknown=0, NotChecked=0, Total=3306 [2020-10-14 04:56:41,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-10-14 04:56:41,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 420. [2020-10-14 04:56:41,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 420 states. [2020-10-14 04:56:41,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 493 transitions. [2020-10-14 04:56:41,269 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 493 transitions. Word has length 73 [2020-10-14 04:56:41,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:56:41,269 INFO L479 AbstractCegarLoop]: Abstraction has 420 states and 493 transitions. [2020-10-14 04:56:41,269 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-14 04:56:41,269 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 493 transitions. [2020-10-14 04:56:41,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-14 04:56:41,270 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:56:41,271 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:56:41,271 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 04:56:41,271 INFO L427 AbstractCegarLoop]: === Iteration 19 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:56:41,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:56:41,271 INFO L82 PathProgramCache]: Analyzing trace with hash 263136635, now seen corresponding path program 2 times [2020-10-14 04:56:41,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:56:41,272 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [873648490] [2020-10-14 04:56:41,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:56:41,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:41,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:45,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:45,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 04:56:45,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:45,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4453 [2020-10-14 04:56:45,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:45,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:45,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-14 04:56:45,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:56:45,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 04:56:45,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:45,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:56:45,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:45,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:45,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:45,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:56:45,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:45,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 04:56:45,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:45,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:45,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:56:45,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:56:45,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:56:45,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:45,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 04:56:46,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:46,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:49,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:49,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 04:56:49,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:49,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3250 [2020-10-14 04:56:49,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:49,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:49,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-14 04:56:49,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:56:49,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 04:56:49,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:49,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:56:49,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:49,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:49,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:49,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 04:56:49,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:49,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-14 04:56:49,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:49,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:49,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 04:56:49,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:56:49,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 04:56:49,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:49,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 04:56:49,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:49,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:49,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:49,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:56:49,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:49,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 04:56:49,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:49,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:49,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 04:56:49,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:56:49,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 04:56:49,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:50,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:56:50,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:50,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:50,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:50,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:56:50,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:50,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 04:56:50,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:50,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:50,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:56:50,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:56:50,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 04:56:50,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:50,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 04:56:50,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:50,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:50,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:50,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 04:56:50,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:50,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-14 04:56:50,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:50,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:50,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 04:56:50,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:56:50,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 04:56:50,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:50,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 04:56:50,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:50,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:50,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:50,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:56:50,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:50,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 04:56:50,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:50,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:50,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 04:56:50,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:56:50,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 04:56:50,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:56:50,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:56:50,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:50,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:50,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:50,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:56:50,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:50,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 04:56:50,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:50,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:50,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:56:50,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:56:50,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 04:56:50,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:50,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 04:56:50,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:50,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:50,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:50,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 04:56:50,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:50,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-14 04:56:50,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:50,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:50,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 04:56:50,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:56:50,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 04:56:50,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:51,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 04:56:51,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:51,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:51,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:51,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:56:51,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:51,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 04:56:51,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:51,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:51,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 04:56:51,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:56:51,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 04:56:51,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:51,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:56:51,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:56:51,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:56:51,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:56:51,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:56:51,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:56:51,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 04:56:51,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:56:51,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:56:51,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:56:51,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:56:51,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 04:56:51,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:56:51,424 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 1 proven. 50 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 04:56:51,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [873648490] [2020-10-14 04:56:51,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:56:51,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-10-14 04:56:51,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355463035] [2020-10-14 04:56:51,425 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-10-14 04:56:51,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:56:51,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-10-14 04:56:51,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2020-10-14 04:56:51,426 INFO L87 Difference]: Start difference. First operand 420 states and 493 transitions. Second operand 33 states. [2020-10-14 04:56:52,168 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2020-10-14 04:56:53,103 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2020-10-14 04:56:53,316 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2020-10-14 04:56:53,826 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2020-10-14 04:56:53,994 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 50 [2020-10-14 04:56:54,156 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 60 [2020-10-14 04:56:54,566 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 75 [2020-10-14 04:56:54,848 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2020-10-14 04:56:55,364 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2020-10-14 04:56:55,596 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-14 04:56:56,831 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 70 [2020-10-14 04:56:57,052 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 64 [2020-10-14 04:57:00,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:57:00,955 INFO L93 Difference]: Finished difference Result 459 states and 537 transitions. [2020-10-14 04:57:00,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-14 04:57:00,964 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 82 [2020-10-14 04:57:00,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:57:00,967 INFO L225 Difference]: With dead ends: 459 [2020-10-14 04:57:00,967 INFO L226 Difference]: Without dead ends: 456 [2020-10-14 04:57:00,969 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 771 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=577, Invalid=3583, Unknown=0, NotChecked=0, Total=4160 [2020-10-14 04:57:00,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2020-10-14 04:57:01,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 424. [2020-10-14 04:57:01,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 424 states. [2020-10-14 04:57:01,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 500 transitions. [2020-10-14 04:57:01,015 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 500 transitions. Word has length 82 [2020-10-14 04:57:01,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:57:01,016 INFO L479 AbstractCegarLoop]: Abstraction has 424 states and 500 transitions. [2020-10-14 04:57:01,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-10-14 04:57:01,016 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 500 transitions. [2020-10-14 04:57:01,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-14 04:57:01,017 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:57:01,017 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:57:01,017 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 04:57:01,017 INFO L427 AbstractCegarLoop]: === Iteration 20 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:57:01,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:57:01,018 INFO L82 PathProgramCache]: Analyzing trace with hash 592750523, now seen corresponding path program 1 times [2020-10-14 04:57:01,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:57:01,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1028826862] [2020-10-14 04:57:01,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:57:01,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:01,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:01,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:01,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 04:57:01,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:57:01,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 496 [2020-10-14 04:57:01,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:01,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:01,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-14 04:57:01,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:57:01,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 04:57:01,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:57:01,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:57:01,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:01,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:01,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:01,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:57:01,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:57:01,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:57:01,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:01,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:01,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:57:01,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:57:01,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:57:01,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:57:01,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 04:57:01,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:01,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:01,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:01,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 04:57:01,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:57:01,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-14 04:57:01,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:01,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:01,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 04:57:01,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:57:01,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 04:57:01,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:57:02,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:57:02,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:02,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:02,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:02,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 04:57:02,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:57:02,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-14 04:57:02,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:02,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:02,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 04:57:02,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:57:02,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 04:57:02,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:57:02,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 04:57:02,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:02,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:02,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:02,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:57:02,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:57:02,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 04:57:02,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:02,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:02,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 04:57:02,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:57:02,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 04:57:02,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:57:02,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:57:02,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:02,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:02,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:02,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:57:02,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:57:02,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 04:57:02,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:02,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:02,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:57:02,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:57:02,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 04:57:02,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:57:02,811 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 04:57:02,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1028826862] [2020-10-14 04:57:02,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:57:02,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-14 04:57:02,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319342912] [2020-10-14 04:57:02,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-14 04:57:02,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:57:02,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-14 04:57:02,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2020-10-14 04:57:02,813 INFO L87 Difference]: Start difference. First operand 424 states and 500 transitions. Second operand 20 states. [2020-10-14 04:57:04,007 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2020-10-14 04:57:08,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:57:08,140 INFO L93 Difference]: Finished difference Result 443 states and 521 transitions. [2020-10-14 04:57:08,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-14 04:57:08,143 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 73 [2020-10-14 04:57:08,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:57:08,146 INFO L225 Difference]: With dead ends: 443 [2020-10-14 04:57:08,147 INFO L226 Difference]: Without dead ends: 440 [2020-10-14 04:57:08,148 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=234, Invalid=1406, Unknown=0, NotChecked=0, Total=1640 [2020-10-14 04:57:08,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2020-10-14 04:57:08,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 424. [2020-10-14 04:57:08,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 424 states. [2020-10-14 04:57:08,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 499 transitions. [2020-10-14 04:57:08,235 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 499 transitions. Word has length 73 [2020-10-14 04:57:08,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:57:08,235 INFO L479 AbstractCegarLoop]: Abstraction has 424 states and 499 transitions. [2020-10-14 04:57:08,287 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-14 04:57:08,287 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 499 transitions. [2020-10-14 04:57:08,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-14 04:57:08,288 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:57:08,288 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:57:08,288 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 04:57:08,289 INFO L427 AbstractCegarLoop]: === Iteration 21 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:57:08,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:57:08,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1150180773, now seen corresponding path program 1 times [2020-10-14 04:57:08,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:57:08,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1839165396] [2020-10-14 04:57:08,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:57:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:08,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:11,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:11,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-14 04:57:11,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:57:11,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3346 [2020-10-14 04:57:11,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:11,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:11,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-14 04:57:11,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:57:11,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-14 04:57:11,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:57:11,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:57:11,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:11,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:11,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:11,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:57:11,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:57:11,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:57:11,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:11,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:11,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:57:11,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:57:11,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:57:11,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:57:12,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 04:57:12,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:12,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:12,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:12,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-14 04:57:12,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:57:12,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 962 [2020-10-14 04:57:12,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:12,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:12,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-14 04:57:12,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:57:12,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 04:57:12,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:57:13,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:57:13,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:13,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:13,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:13,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 04:57:13,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:57:13,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-14 04:57:13,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:13,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:13,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 04:57:13,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:57:13,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 04:57:13,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:57:13,740 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2020-10-14 04:57:13,896 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-10-14 04:57:13,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 04:57:13,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:13,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:14,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:14,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:57:14,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:57:14,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 04:57:14,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:14,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:14,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 04:57:14,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:57:14,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 04:57:14,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:57:14,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:57:14,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:14,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:14,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:14,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:57:14,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:57:14,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 04:57:14,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:14,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:14,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:57:14,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:57:14,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 04:57:14,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:57:14,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 04:57:14,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:14,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:14,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:14,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 04:57:14,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:57:14,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-14 04:57:14,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:14,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:14,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 04:57:14,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:57:14,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 04:57:14,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:57:15,100 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 80 [2020-10-14 04:57:15,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 04:57:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:15,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:15,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:15,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:57:15,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:57:15,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 04:57:15,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:15,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:15,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 04:57:15,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:57:15,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 04:57:15,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:57:15,776 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2020-10-14 04:57:15,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:57:15,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:15,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:15,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:15,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:57:15,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:57:15,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 04:57:15,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:15,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:15,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:57:15,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:57:15,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 04:57:15,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:57:16,142 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-10-14 04:57:16,219 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 04:57:16,219 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1839165396] [2020-10-14 04:57:16,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:57:16,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-14 04:57:16,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438950219] [2020-10-14 04:57:16,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-14 04:57:16,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:57:16,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-14 04:57:16,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=723, Unknown=0, NotChecked=0, Total=812 [2020-10-14 04:57:16,221 INFO L87 Difference]: Start difference. First operand 424 states and 499 transitions. Second operand 29 states. [2020-10-14 04:57:16,945 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2020-10-14 04:57:17,655 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-14 04:57:18,056 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-14 04:57:18,386 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-14 04:57:18,949 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 102 [2020-10-14 04:57:19,676 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 118 [2020-10-14 04:57:20,055 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2020-10-14 04:57:21,158 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-14 04:57:21,548 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-14 04:57:21,858 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-14 04:57:22,703 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-10-14 04:57:26,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:57:26,973 INFO L93 Difference]: Finished difference Result 452 states and 529 transitions. [2020-10-14 04:57:26,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-14 04:57:26,975 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 76 [2020-10-14 04:57:26,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:57:26,978 INFO L225 Difference]: With dead ends: 452 [2020-10-14 04:57:26,978 INFO L226 Difference]: Without dead ends: 449 [2020-10-14 04:57:26,980 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=396, Invalid=2684, Unknown=0, NotChecked=0, Total=3080 [2020-10-14 04:57:26,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2020-10-14 04:57:27,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 424. [2020-10-14 04:57:27,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 424 states. [2020-10-14 04:57:27,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 498 transitions. [2020-10-14 04:57:27,028 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 498 transitions. Word has length 76 [2020-10-14 04:57:27,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:57:27,028 INFO L479 AbstractCegarLoop]: Abstraction has 424 states and 498 transitions. [2020-10-14 04:57:27,028 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-14 04:57:27,029 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 498 transitions. [2020-10-14 04:57:27,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-14 04:57:27,030 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:57:27,030 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:57:27,030 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 04:57:27,031 INFO L427 AbstractCegarLoop]: === Iteration 22 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:57:27,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:57:27,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1953531995, now seen corresponding path program 1 times [2020-10-14 04:57:27,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:57:27,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [263345575] [2020-10-14 04:57:27,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:57:27,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:27,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:27,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:27,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-14 04:57:27,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:57:27,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 438 [2020-10-14 04:57:27,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:27,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:27,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-14 04:57:27,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:57:27,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 04:57:27,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:57:27,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:57:27,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:27,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:27,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:27,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:57:27,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:57:27,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:57:27,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:27,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:27,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:57:27,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:57:27,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:57:27,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:57:27,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 04:57:27,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:27,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:28,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:28,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 04:57:28,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:57:28,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-14 04:57:28,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:28,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:28,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 04:57:28,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:57:28,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 04:57:28,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:57:28,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:57:28,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:28,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:28,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:28,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 04:57:28,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:57:28,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-14 04:57:28,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:28,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:28,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 04:57:28,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:57:28,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 04:57:28,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:57:28,628 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2020-10-14 04:57:28,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 04:57:28,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:28,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:28,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:28,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:57:28,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:57:28,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 04:57:28,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:28,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:28,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 04:57:28,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:57:28,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 04:57:28,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:57:28,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:57:28,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:28,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:28,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:28,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:57:28,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:57:28,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 04:57:28,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:28,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:28,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:57:28,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:57:28,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 04:57:28,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:57:29,105 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 04:57:29,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [263345575] [2020-10-14 04:57:29,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:57:29,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-14 04:57:29,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378578587] [2020-10-14 04:57:29,106 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-14 04:57:29,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:57:29,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-14 04:57:29,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2020-10-14 04:57:29,107 INFO L87 Difference]: Start difference. First operand 424 states and 498 transitions. Second operand 20 states. [2020-10-14 04:57:30,328 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2020-10-14 04:57:30,905 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-14 04:57:32,155 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-14 04:57:33,007 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-14 04:57:35,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:57:35,036 INFO L93 Difference]: Finished difference Result 442 states and 518 transitions. [2020-10-14 04:57:35,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-14 04:57:35,039 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 76 [2020-10-14 04:57:35,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:57:35,042 INFO L225 Difference]: With dead ends: 442 [2020-10-14 04:57:35,042 INFO L226 Difference]: Without dead ends: 439 [2020-10-14 04:57:35,043 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=240, Invalid=1482, Unknown=0, NotChecked=0, Total=1722 [2020-10-14 04:57:35,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2020-10-14 04:57:35,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 424. [2020-10-14 04:57:35,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 424 states. [2020-10-14 04:57:35,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 497 transitions. [2020-10-14 04:57:35,094 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 497 transitions. Word has length 76 [2020-10-14 04:57:35,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:57:35,094 INFO L479 AbstractCegarLoop]: Abstraction has 424 states and 497 transitions. [2020-10-14 04:57:35,094 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-14 04:57:35,094 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 497 transitions. [2020-10-14 04:57:35,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-14 04:57:35,095 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:57:35,096 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:57:35,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-14 04:57:35,096 INFO L427 AbstractCegarLoop]: === Iteration 23 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:57:35,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:57:35,096 INFO L82 PathProgramCache]: Analyzing trace with hash 49167395, now seen corresponding path program 1 times [2020-10-14 04:57:35,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:57:35,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1958322189] [2020-10-14 04:57:35,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:57:35,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:35,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:37,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:37,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 04:57:37,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:57:37,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2188 [2020-10-14 04:57:37,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:37,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:37,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-14 04:57:37,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:57:37,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-14 04:57:37,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:57:37,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:57:37,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:37,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:37,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:37,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:57:37,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:57:37,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:57:37,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:37,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:37,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:57:37,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:57:37,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:57:37,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:57:37,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 04:57:37,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:37,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:38,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:38,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-14 04:57:38,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:57:38,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 837 [2020-10-14 04:57:38,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:38,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:38,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-14 04:57:38,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:57:38,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 04:57:38,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:57:38,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:57:38,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:38,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:38,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:38,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 04:57:38,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:57:38,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-14 04:57:38,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:38,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:38,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 04:57:38,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:57:38,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 04:57:38,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:57:39,154 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-10-14 04:57:39,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 04:57:39,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:39,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:39,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:39,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:57:39,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:57:39,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 04:57:39,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:39,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:39,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 04:57:39,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:57:39,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 04:57:39,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:57:39,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:57:39,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:39,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:39,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:39,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:57:39,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:57:39,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 04:57:39,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:39,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:39,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:57:39,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:57:39,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 04:57:39,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:57:39,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 04:57:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:39,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:39,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:39,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 04:57:39,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:57:39,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-14 04:57:39,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:39,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:39,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 04:57:39,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:57:39,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 04:57:39,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:57:40,475 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2020-10-14 04:57:40,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 04:57:40,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:40,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:40,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:40,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:57:40,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:57:40,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-14 04:57:40,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:40,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:40,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 04:57:40,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:57:40,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 04:57:40,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:57:40,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:57:40,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:40,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:41,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:41,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:57:41,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:57:41,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 04:57:41,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:41,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:41,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:57:41,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:57:41,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 04:57:41,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:57:41,237 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 04:57:41,238 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1958322189] [2020-10-14 04:57:41,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:57:41,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-14 04:57:41,238 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378536064] [2020-10-14 04:57:41,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-14 04:57:41,238 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:57:41,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-14 04:57:41,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=723, Unknown=0, NotChecked=0, Total=812 [2020-10-14 04:57:41,239 INFO L87 Difference]: Start difference. First operand 424 states and 497 transitions. Second operand 29 states. [2020-10-14 04:57:41,971 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-14 04:57:42,191 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-10-14 04:57:42,642 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-14 04:57:42,954 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-14 04:57:43,193 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 04:57:43,664 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 89 [2020-10-14 04:57:44,266 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 101 [2020-10-14 04:57:44,602 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2020-10-14 04:57:44,843 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 55 [2020-10-14 04:57:45,053 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 70 [2020-10-14 04:57:45,242 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 50 [2020-10-14 04:57:45,464 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 85 [2020-10-14 04:57:45,891 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 109 [2020-10-14 04:57:46,262 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 60 [2020-10-14 04:57:46,915 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 04:57:47,244 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 04:57:47,494 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-14 04:57:47,714 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 80 [2020-10-14 04:57:48,278 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 91 [2020-10-14 04:57:48,471 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2020-10-14 04:57:48,979 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-14 04:57:49,262 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 95 [2020-10-14 04:57:49,608 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-14 04:57:49,878 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-14 04:57:50,976 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 81 [2020-10-14 04:57:55,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:57:55,930 INFO L93 Difference]: Finished difference Result 462 states and 538 transitions. [2020-10-14 04:57:55,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-10-14 04:57:55,933 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 79 [2020-10-14 04:57:55,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:57:55,935 INFO L225 Difference]: With dead ends: 462 [2020-10-14 04:57:55,936 INFO L226 Difference]: Without dead ends: 459 [2020-10-14 04:57:55,937 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 982 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=668, Invalid=4162, Unknown=0, NotChecked=0, Total=4830 [2020-10-14 04:57:55,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2020-10-14 04:57:55,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 424. [2020-10-14 04:57:55,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 424 states. [2020-10-14 04:57:55,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 496 transitions. [2020-10-14 04:57:55,988 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 496 transitions. Word has length 79 [2020-10-14 04:57:55,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:57:55,988 INFO L479 AbstractCegarLoop]: Abstraction has 424 states and 496 transitions. [2020-10-14 04:57:55,989 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-14 04:57:55,989 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 496 transitions. [2020-10-14 04:57:55,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-14 04:57:55,989 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:57:55,989 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:57:55,989 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-14 04:57:55,990 INFO L427 AbstractCegarLoop]: === Iteration 24 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:57:55,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:57:55,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1511926778, now seen corresponding path program 2 times [2020-10-14 04:57:55,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:57:55,990 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2064013863] [2020-10-14 04:57:55,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:57:56,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:56,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:01,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:01,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 04:58:01,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:01,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-14 04:58:01,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:01,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:01,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-10-14 04:58:01,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:58:01,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-14 04:58:01,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:01,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:58:01,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:01,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:01,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:01,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:58:01,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:01,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:58:01,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:01,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:01,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:58:01,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:01,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:58:01,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:01,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 04:58:01,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:01,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:05,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:05,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 04:58:05,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:05,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3801 [2020-10-14 04:58:05,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:05,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:05,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-14 04:58:05,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:58:05,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 04:58:05,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:05,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:58:05,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:05,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:05,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:05,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 04:58:05,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:05,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 04:58:05,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:05,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:05,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 04:58:05,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:58:05,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 04:58:05,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:06,099 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2020-10-14 04:58:06,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 04:58:06,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:06,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:06,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:06,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:58:06,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:06,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 04:58:06,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:06,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:06,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 04:58:06,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:58:06,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 04:58:06,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:06,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:58:06,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:06,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:06,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:06,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:58:06,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:06,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 04:58:06,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:06,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:06,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:58:06,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:06,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 04:58:06,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:06,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 04:58:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:06,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:06,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:06,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 04:58:06,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:06,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-14 04:58:06,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:06,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:06,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 04:58:06,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:58:06,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 04:58:06,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:07,303 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2020-10-14 04:58:07,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 04:58:07,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:07,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:07,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:07,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:58:07,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:07,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 04:58:07,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:07,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:07,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 04:58:07,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:58:07,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 04:58:07,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:07,854 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2020-10-14 04:58:07,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 04:58:07,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:07,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:07,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:07,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:58:07,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:07,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 04:58:07,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:07,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:07,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:58:07,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:58:07,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 04:58:07,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:08,119 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2020-10-14 04:58:08,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 04:58:08,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:08,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:08,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:08,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 04:58:08,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:08,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-14 04:58:08,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:08,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:08,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 04:58:08,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:58:08,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 04:58:08,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:09,150 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 69 [2020-10-14 04:58:09,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 04:58:09,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:09,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:09,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:09,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:58:09,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:09,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-14 04:58:09,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:09,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:09,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 04:58:09,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:58:09,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 04:58:09,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:17,343 WARN L193 SmtUtils]: Spent 5.45 s on a formula simplification. DAG size of input: 309 DAG size of output: 93