/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/eca-rers2012/Problem12_label11.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 02:43:56,678 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 02:43:56,681 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 02:43:56,710 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 02:43:56,710 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 02:43:56,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 02:43:56,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 02:43:56,727 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 02:43:56,730 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 02:43:56,734 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 02:43:56,735 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 02:43:56,736 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 02:43:56,737 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 02:43:56,740 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 02:43:56,743 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 02:43:56,745 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 02:43:56,747 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 02:43:56,749 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 02:43:56,750 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 02:43:56,760 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 02:43:56,762 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 02:43:56,763 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 02:43:56,765 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 02:43:56,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 02:43:56,780 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 02:43:56,780 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 02:43:56,781 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 02:43:56,785 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 02:43:56,785 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 02:43:56,788 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 02:43:56,789 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 02:43:56,790 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 02:43:56,790 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 02:43:56,794 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 02:43:56,795 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 02:43:56,796 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 02:43:56,796 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 02:43:56,797 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 02:43:56,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 02:43:56,802 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 02:43:56,803 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 02:43:56,805 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 02:43:56,850 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 02:43:56,850 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 02:43:56,853 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 02:43:56,853 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 02:43:56,854 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 02:43:56,854 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 02:43:56,854 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 02:43:56,854 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 02:43:56,855 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 02:43:56,855 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 02:43:56,856 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 02:43:56,856 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 02:43:56,856 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 02:43:56,857 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 02:43:56,857 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 02:43:56,857 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 02:43:56,857 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 02:43:56,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 02:43:56,858 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 02:43:56,858 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 02:43:56,859 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 02:43:56,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 02:43:56,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 02:43:56,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 02:43:56,859 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 02:43:56,860 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 02:43:56,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 02:43:56,860 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 02:43:56,860 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 02:43:56,860 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 02:43:57,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 02:43:57,210 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 02:43:57,214 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 02:43:57,216 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 02:43:57,216 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 02:43:57,217 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label11.c [2020-10-14 02:43:57,283 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5e3a390e1/16fea058b26642c7a67d54d384943aef/FLAGeb762df04 [2020-10-14 02:43:58,180 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 02:43:58,180 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem12_label11.c [2020-10-14 02:43:58,213 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5e3a390e1/16fea058b26642c7a67d54d384943aef/FLAGeb762df04 [2020-10-14 02:43:58,604 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5e3a390e1/16fea058b26642c7a67d54d384943aef [2020-10-14 02:43:58,616 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 02:43:58,618 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 02:43:58,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 02:43:58,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 02:43:58,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 02:43:58,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:43:58" (1/1) ... [2020-10-14 02:43:58,631 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ac0f60a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:43:58, skipping insertion in model container [2020-10-14 02:43:58,632 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:43:58" (1/1) ... [2020-10-14 02:43:58,641 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 02:43:58,789 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 02:44:00,249 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 02:44:00,257 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 02:44:00,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 02:44:00,961 INFO L208 MainTranslator]: Completed translation [2020-10-14 02:44:00,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:44:00 WrapperNode [2020-10-14 02:44:00,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 02:44:00,965 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 02:44:00,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 02:44:00,965 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 02:44:00,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:44:00" (1/1) ... [2020-10-14 02:44:00,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:44:00" (1/1) ... [2020-10-14 02:44:01,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:44:00" (1/1) ... [2020-10-14 02:44:01,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:44:00" (1/1) ... [2020-10-14 02:44:01,158 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:44:00" (1/1) ... [2020-10-14 02:44:01,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:44:00" (1/1) ... [2020-10-14 02:44:01,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:44:00" (1/1) ... [2020-10-14 02:44:01,267 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 02:44:01,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 02:44:01,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 02:44:01,268 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 02:44:01,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:44:00" (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 02:44:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 02:44:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 02:44:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 02:44:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 02:44:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 02:44:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-14 02:44:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 02:44:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 02:44:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 02:44:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 02:44:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-14 02:44:01,364 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 02:44:01,364 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 02:44:01,364 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 02:44:01,364 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 02:44:01,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 02:44:01,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 02:44:06,877 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 02:44:06,878 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 02:44:06,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:44:06 BoogieIcfgContainer [2020-10-14 02:44:06,897 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 02:44:06,899 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 02:44:06,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 02:44:06,904 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 02:44:06,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 02:43:58" (1/3) ... [2020-10-14 02:44:06,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@280fff2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:44:06, skipping insertion in model container [2020-10-14 02:44:06,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:44:00" (2/3) ... [2020-10-14 02:44:06,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@280fff2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:44:06, skipping insertion in model container [2020-10-14 02:44:06,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:44:06" (3/3) ... [2020-10-14 02:44:06,910 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem12_label11.c [2020-10-14 02:44:06,927 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 02:44:06,940 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 02:44:06,963 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 02:44:07,003 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 02:44:07,003 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 02:44:07,003 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 02:44:07,004 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 02:44:07,004 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 02:44:07,004 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 02:44:07,004 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 02:44:07,005 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 02:44:07,050 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states. [2020-10-14 02:44:07,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-14 02:44:07,062 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:44:07,063 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:44:07,064 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:44:07,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:44:07,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1822047914, now seen corresponding path program 1 times [2020-10-14 02:44:07,082 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:44:07,083 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [388320022] [2020-10-14 02:44:07,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:44:07,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:44:07,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:44:07,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:44:07,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 02:44:07,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:44:07,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 424 [2020-10-14 02:44:07,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:44:07,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:44:07,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 02:44:07,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 02:44:07,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 02:44:07,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 02:44:07,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:44:07,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:44:07,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:44:07,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:44:07,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:44:07,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:44:07,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 02:44:07,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:44:07,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:44:07,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:44:07,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:44:07,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 02:44:07,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:44:07,873 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 02:44:07,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [388320022] [2020-10-14 02:44:07,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 02:44:07,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 02:44:07,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918948170] [2020-10-14 02:44:07,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:44:07,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:44:07,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:44:07,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:44:07,907 INFO L87 Difference]: Start difference. First operand 839 states. Second operand 5 states. [2020-10-14 02:44:17,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:44:17,142 INFO L93 Difference]: Finished difference Result 2471 states and 4736 transitions. [2020-10-14 02:44:17,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:44:17,143 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 45 [2020-10-14 02:44:17,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:44:17,194 INFO L225 Difference]: With dead ends: 2471 [2020-10-14 02:44:17,194 INFO L226 Difference]: Without dead ends: 1568 [2020-10-14 02:44:17,204 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:44:17,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1568 states. [2020-10-14 02:44:17,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1568 to 1553. [2020-10-14 02:44:17,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1553 states. [2020-10-14 02:44:17,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1553 states to 1553 states and 2833 transitions. [2020-10-14 02:44:17,356 INFO L78 Accepts]: Start accepts. Automaton has 1553 states and 2833 transitions. Word has length 45 [2020-10-14 02:44:17,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:44:17,357 INFO L479 AbstractCegarLoop]: Abstraction has 1553 states and 2833 transitions. [2020-10-14 02:44:17,357 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:44:17,357 INFO L276 IsEmpty]: Start isEmpty. Operand 1553 states and 2833 transitions. [2020-10-14 02:44:17,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-14 02:44:17,364 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:44:17,364 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, 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, 1, 1, 1, 1, 1] [2020-10-14 02:44:17,365 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 02:44:17,365 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:44:17,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:44:17,366 INFO L82 PathProgramCache]: Analyzing trace with hash 99143583, now seen corresponding path program 1 times [2020-10-14 02:44:17,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:44:17,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2072938324] [2020-10-14 02:44:17,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:44:17,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:44:17,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:44:17,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:44:18,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:44:18,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 02:44:18,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:44:18,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1234 [2020-10-14 02:44:18,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:44:18,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:44:18,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:44:18,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-14 02:44:18,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-14 02:44:18,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:44:18,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:44:18,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:44:18,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:44:18,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:44:18,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:44:18,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:44:18,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 02:44:18,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:44:18,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:44:18,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:44:18,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:44:18,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:44:18,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:44:18,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:44:18,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:44:18,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:44:18,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:44:18,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 02:44:18,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:44:18,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 02:44:18,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:44:18,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:44:18,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:44:18,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:44:18,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 02:44:18,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 02:44:18,960 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:44:18,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2072938324] [2020-10-14 02:44:18,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:44:18,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:44:18,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171725931] [2020-10-14 02:44:18,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:44:18,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:44:18,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:44:18,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:44:18,966 INFO L87 Difference]: Start difference. First operand 1553 states and 2833 transitions. Second operand 5 states. [2020-10-14 02:44:27,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:44:27,403 INFO L93 Difference]: Finished difference Result 4676 states and 8590 transitions. [2020-10-14 02:44:27,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:44:27,405 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 118 [2020-10-14 02:44:27,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:44:27,424 INFO L225 Difference]: With dead ends: 4676 [2020-10-14 02:44:27,425 INFO L226 Difference]: Without dead ends: 3129 [2020-10-14 02:44:27,430 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:44:27,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3129 states. [2020-10-14 02:44:27,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3129 to 3114. [2020-10-14 02:44:27,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3114 states. [2020-10-14 02:44:27,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3114 states to 3114 states and 5325 transitions. [2020-10-14 02:44:27,526 INFO L78 Accepts]: Start accepts. Automaton has 3114 states and 5325 transitions. Word has length 118 [2020-10-14 02:44:27,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:44:27,528 INFO L479 AbstractCegarLoop]: Abstraction has 3114 states and 5325 transitions. [2020-10-14 02:44:27,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:44:27,528 INFO L276 IsEmpty]: Start isEmpty. Operand 3114 states and 5325 transitions. [2020-10-14 02:44:27,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-14 02:44:27,531 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:44:27,532 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, 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:44:27,532 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 02:44:27,532 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:44:27,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:44:27,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1797369347, now seen corresponding path program 1 times [2020-10-14 02:44:27,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:44:27,533 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1069223404] [2020-10-14 02:44:27,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:44:27,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:44:27,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:44:27,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:44:27,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:44:27,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 02:44:27,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:44:27,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 266 [2020-10-14 02:44:27,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:44:27,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:44:27,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:44:27,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-14 02:44:27,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-14 02:44:27,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:44:27,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:44:27,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:44:27,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:44:27,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:44:27,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:44:27,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:44:27,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 02:44:27,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:44:27,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:44:27,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:44:27,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:44:27,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:44:27,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:44:27,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:44:27,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:44:27,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:44:28,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:44:28,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 02:44:28,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:44:28,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 02:44:28,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:44:28,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:44:28,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:44:28,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:44:28,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 02:44:28,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:44:28,140 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:44:28,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1069223404] [2020-10-14 02:44:28,141 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:44:28,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 02:44:28,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499340028] [2020-10-14 02:44:28,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 02:44:28,144 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:44:28,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 02:44:28,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:44:28,146 INFO L87 Difference]: Start difference. First operand 3114 states and 5325 transitions. Second operand 6 states. [2020-10-14 02:44:43,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:44:43,819 INFO L93 Difference]: Finished difference Result 12450 states and 21860 transitions. [2020-10-14 02:44:43,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 02:44:43,821 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 120 [2020-10-14 02:44:43,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:44:43,890 INFO L225 Difference]: With dead ends: 12450 [2020-10-14 02:44:43,890 INFO L226 Difference]: Without dead ends: 9342 [2020-10-14 02:44:43,900 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 02:44:43,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9342 states. [2020-10-14 02:44:44,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9342 to 9325. [2020-10-14 02:44:44,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9325 states. [2020-10-14 02:44:44,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9325 states to 9325 states and 14406 transitions. [2020-10-14 02:44:44,169 INFO L78 Accepts]: Start accepts. Automaton has 9325 states and 14406 transitions. Word has length 120 [2020-10-14 02:44:44,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:44:44,171 INFO L479 AbstractCegarLoop]: Abstraction has 9325 states and 14406 transitions. [2020-10-14 02:44:44,171 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 02:44:44,171 INFO L276 IsEmpty]: Start isEmpty. Operand 9325 states and 14406 transitions. [2020-10-14 02:44:44,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-14 02:44:44,176 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:44:44,176 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:44:44,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 02:44:44,177 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:44:44,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:44:44,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1534025061, now seen corresponding path program 1 times [2020-10-14 02:44:44,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:44:44,178 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1542511656] [2020-10-14 02:44:44,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:44:44,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:44:44,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:44:44,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:44:45,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:44:45,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 02:44:45,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:44:45,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1238 [2020-10-14 02:44:45,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:44:45,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:44:45,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:44:45,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-10-14 02:44:45,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-14 02:44:45,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 02:44:45,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:44:45,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:44:45,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:44:45,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:44:45,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:44:45,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:44:45,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 02:44:45,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:44:45,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:44:45,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:44:45,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:44:45,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:44:45,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:44:45,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:44:45,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:44:45,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:44:45,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:44:45,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-14 02:44:45,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:44:45,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-14 02:44:45,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:44:45,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:44:45,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:44:45,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:44:45,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-14 02:44:45,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:44:45,815 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:44:45,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1542511656] [2020-10-14 02:44:45,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:44:45,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:44:45,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953890537] [2020-10-14 02:44:45,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:44:45,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:44:45,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:44:45,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:44:45,818 INFO L87 Difference]: Start difference. First operand 9325 states and 14406 transitions. Second operand 5 states. [2020-10-14 02:44:57,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:44:57,831 INFO L93 Difference]: Finished difference Result 27971 states and 44409 transitions. [2020-10-14 02:44:57,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:44:57,832 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 164 [2020-10-14 02:44:57,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:44:57,928 INFO L225 Difference]: With dead ends: 27971 [2020-10-14 02:44:57,928 INFO L226 Difference]: Without dead ends: 18652 [2020-10-14 02:44:57,953 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:44:57,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18652 states. [2020-10-14 02:44:58,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18652 to 18640. [2020-10-14 02:44:58,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18640 states. [2020-10-14 02:44:58,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18640 states to 18640 states and 26944 transitions. [2020-10-14 02:44:58,487 INFO L78 Accepts]: Start accepts. Automaton has 18640 states and 26944 transitions. Word has length 164 [2020-10-14 02:44:58,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:44:58,489 INFO L479 AbstractCegarLoop]: Abstraction has 18640 states and 26944 transitions. [2020-10-14 02:44:58,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:44:58,489 INFO L276 IsEmpty]: Start isEmpty. Operand 18640 states and 26944 transitions. [2020-10-14 02:44:58,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-10-14 02:44:58,507 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:44:58,508 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:44:58,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 02:44:58,508 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:44:58,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:44:58,509 INFO L82 PathProgramCache]: Analyzing trace with hash -2000078650, now seen corresponding path program 1 times [2020-10-14 02:44:58,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:44:58,509 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1056566264] [2020-10-14 02:44:58,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:44:58,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:44:58,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:44:58,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:45:00,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:45:01,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:45:03,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:45:03,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 345 [2020-10-14 02:45:03,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 02:45:03,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 02:45:03,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:45:03,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:45:03,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:45:03,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-14 02:45:03,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 02:45:03,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:45:03,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:45:03,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:45:03,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:45:03,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:45:03,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:45:03,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:45:03,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 02:45:03,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:45:03,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:45:03,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:45:03,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:45:03,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:45:03,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:45:03,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:45:03,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:45:03,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:45:03,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:45:03,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 02:45:03,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:45:03,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-14 02:45:03,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:45:03,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:45:03,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:45:03,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:45:03,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 02:45:03,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 02:45:03,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 02:45:03,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:45:03,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:45:04,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:45:04,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 02:45:04,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:45:04,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 385 [2020-10-14 02:45:04,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:45:04,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:45:04,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:45:04,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:45:04,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-14 02:45:04,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 02:45:04,731 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 146 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 02:45:04,732 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1056566264] [2020-10-14 02:45:04,732 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:45:04,733 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:45:04,733 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690386591] [2020-10-14 02:45:04,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:45:04,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:45:04,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:45:04,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:45:04,736 INFO L87 Difference]: Start difference. First operand 18640 states and 26944 transitions. Second operand 7 states. [2020-10-14 02:45:25,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:45:25,883 INFO L93 Difference]: Finished difference Result 40011 states and 59762 transitions. [2020-10-14 02:45:25,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 02:45:25,885 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 333 [2020-10-14 02:45:25,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:45:26,006 INFO L225 Difference]: With dead ends: 40011 [2020-10-14 02:45:26,006 INFO L226 Difference]: Without dead ends: 21377 [2020-10-14 02:45:26,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 02:45:26,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21377 states. [2020-10-14 02:45:26,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21377 to 21205. [2020-10-14 02:45:26,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21205 states. [2020-10-14 02:45:26,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21205 states to 21205 states and 28317 transitions. [2020-10-14 02:45:26,732 INFO L78 Accepts]: Start accepts. Automaton has 21205 states and 28317 transitions. Word has length 333 [2020-10-14 02:45:26,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:45:26,733 INFO L479 AbstractCegarLoop]: Abstraction has 21205 states and 28317 transitions. [2020-10-14 02:45:26,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:45:26,733 INFO L276 IsEmpty]: Start isEmpty. Operand 21205 states and 28317 transitions. [2020-10-14 02:45:26,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2020-10-14 02:45:26,759 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:45:26,760 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:45:26,760 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 02:45:26,760 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:45:26,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:45:26,761 INFO L82 PathProgramCache]: Analyzing trace with hash 931074131, now seen corresponding path program 1 times [2020-10-14 02:45:26,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:45:26,761 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1079442581] [2020-10-14 02:45:26,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:45:26,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:45:26,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:45:26,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:45:28,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:45:29,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:45:31,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:45:31,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 374 [2020-10-14 02:45:31,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 02:45:31,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-14 02:45:31,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:45:31,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:45:31,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:45:31,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 112 [2020-10-14 02:45:31,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 02:45:31,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:45:31,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:45:31,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:45:31,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:45:31,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:45:31,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:45:31,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:45:31,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 02:45:31,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:45:31,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:45:31,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:45:32,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:45:32,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:45:32,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:45:32,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:45:32,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:45:32,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:45:32,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:45:32,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 02:45:32,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:45:32,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-14 02:45:32,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:45:32,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:45:32,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:45:32,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:45:32,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-14 02:45:32,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:45:32,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-14 02:45:32,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:45:32,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:45:32,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:45:32,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 02:45:32,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:45:32,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 360 [2020-10-14 02:45:32,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:45:32,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:45:32,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:45:32,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:45:32,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-14 02:45:32,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:45:33,105 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 175 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 02:45:33,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1079442581] [2020-10-14 02:45:33,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:45:33,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:45:33,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178835501] [2020-10-14 02:45:33,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:45:33,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:45:33,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:45:33,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:45:33,114 INFO L87 Difference]: Start difference. First operand 21205 states and 28317 transitions. Second operand 7 states. [2020-10-14 02:45:55,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:45:55,763 INFO L93 Difference]: Finished difference Result 68128 states and 98011 transitions. [2020-10-14 02:45:55,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 02:45:55,766 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 362 [2020-10-14 02:45:55,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:45:55,945 INFO L225 Difference]: With dead ends: 68128 [2020-10-14 02:45:55,946 INFO L226 Difference]: Without dead ends: 49210 [2020-10-14 02:45:56,003 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:45:56,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49210 states. [2020-10-14 02:45:58,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49210 to 48261. [2020-10-14 02:45:58,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48261 states. [2020-10-14 02:45:58,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48261 states to 48261 states and 62906 transitions. [2020-10-14 02:45:58,270 INFO L78 Accepts]: Start accepts. Automaton has 48261 states and 62906 transitions. Word has length 362 [2020-10-14 02:45:58,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:45:58,271 INFO L479 AbstractCegarLoop]: Abstraction has 48261 states and 62906 transitions. [2020-10-14 02:45:58,271 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:45:58,271 INFO L276 IsEmpty]: Start isEmpty. Operand 48261 states and 62906 transitions. [2020-10-14 02:45:58,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2020-10-14 02:45:58,323 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:45:58,323 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:45:58,324 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 02:45:58,324 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:45:58,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:45:58,324 INFO L82 PathProgramCache]: Analyzing trace with hash -1231812794, now seen corresponding path program 1 times [2020-10-14 02:45:58,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:45:58,325 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [938009064] [2020-10-14 02:45:58,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:45:58,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:45:58,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:45:58,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:45:59,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:45:59,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:45:59,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:46:03,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:46:03,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 429 [2020-10-14 02:46:03,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 02:46:03,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 02:46:03,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:46:03,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:46:03,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:46:03,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 167 [2020-10-14 02:46:03,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 02:46:03,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:46:03,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:46:03,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:46:03,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:46:03,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:46:03,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:46:03,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:46:03,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 02:46:03,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:46:03,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:46:03,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:46:03,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:46:03,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:46:03,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:46:03,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:46:03,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:46:03,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:46:03,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:46:03,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 02:46:03,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:46:03,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 02:46:03,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:46:03,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:46:03,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:46:03,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:46:03,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:46:03,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:46:03,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 02:46:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:46:03,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:46:03,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:46:03,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 02:46:03,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:46:03,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-14 02:46:03,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:46:03,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:46:03,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:46:03,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:46:03,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 02:46:03,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:46:03,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-14 02:46:03,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:46:04,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:46:04,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:46:04,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 02:46:04,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:46:04,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 631 [2020-10-14 02:46:04,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:46:04,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:46:04,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:46:04,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:46:04,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-14 02:46:04,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:46:04,972 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 268 proven. 2 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-14 02:46:04,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [938009064] [2020-10-14 02:46:04,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:46:04,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:46:04,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17695411] [2020-10-14 02:46:04,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:46:04,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:46:04,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:46:04,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:46:04,976 INFO L87 Difference]: Start difference. First operand 48261 states and 62906 transitions. Second operand 7 states. [2020-10-14 02:46:22,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:46:22,656 INFO L93 Difference]: Finished difference Result 100961 states and 138581 transitions. [2020-10-14 02:46:22,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:46:22,658 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 415 [2020-10-14 02:46:22,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:46:22,866 INFO L225 Difference]: With dead ends: 100961 [2020-10-14 02:46:22,866 INFO L226 Difference]: Without dead ends: 54308 [2020-10-14 02:46:22,950 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:46:23,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54308 states. [2020-10-14 02:46:24,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54308 to 54010. [2020-10-14 02:46:24,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54010 states. [2020-10-14 02:46:24,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54010 states to 54010 states and 73076 transitions. [2020-10-14 02:46:24,569 INFO L78 Accepts]: Start accepts. Automaton has 54010 states and 73076 transitions. Word has length 415 [2020-10-14 02:46:24,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:46:24,570 INFO L479 AbstractCegarLoop]: Abstraction has 54010 states and 73076 transitions. [2020-10-14 02:46:24,570 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:46:24,570 INFO L276 IsEmpty]: Start isEmpty. Operand 54010 states and 73076 transitions. [2020-10-14 02:46:24,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2020-10-14 02:46:24,620 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:46:24,621 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:46:24,621 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 02:46:24,621 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:46:24,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:46:24,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1002676854, now seen corresponding path program 1 times [2020-10-14 02:46:24,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:46:24,623 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [837344511] [2020-10-14 02:46:24,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:46:24,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:46:24,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:46:25,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:46:25,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:46:28,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:46:28,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 449 [2020-10-14 02:46:28,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:46:28,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4040 [2020-10-14 02:46:28,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:46:28,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:46:28,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:46:28,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 404 [2020-10-14 02:46:28,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-14 02:46:28,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:46:28,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:46:28,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:46:28,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:46:28,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:46:28,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:46:28,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:46:28,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:46:28,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:46:28,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:46:28,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:46:28,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:46:28,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:46:28,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:46:28,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:46:28,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:46:28,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:46:28,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:46:28,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 02:46:28,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:46:28,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 02:46:28,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:46:28,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:46:28,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:46:28,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:46:28,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:46:28,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:46:29,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-10-14 02:46:29,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:46:29,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:46:29,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:46:29,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 02:46:29,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:46:29,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-10-14 02:46:29,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:46:29,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:46:29,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:46:29,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:46:29,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 210 [2020-10-14 02:46:29,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:46:29,755 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 77 proven. 2 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2020-10-14 02:46:29,756 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [837344511] [2020-10-14 02:46:29,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:46:29,756 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:46:29,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336035021] [2020-10-14 02:46:29,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:46:29,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:46:29,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:46:29,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:46:29,759 INFO L87 Difference]: Start difference. First operand 54010 states and 73076 transitions. Second operand 5 states. [2020-10-14 02:46:45,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:46:45,814 INFO L93 Difference]: Finished difference Result 129889 states and 178955 transitions. [2020-10-14 02:46:45,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:46:45,816 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 437 [2020-10-14 02:46:45,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:46:46,015 INFO L225 Difference]: With dead ends: 129889 [2020-10-14 02:46:46,015 INFO L226 Difference]: Without dead ends: 77407 [2020-10-14 02:46:46,081 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:46:46,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77407 states. [2020-10-14 02:46:47,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77407 to 77390. [2020-10-14 02:46:47,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77390 states. [2020-10-14 02:46:48,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77390 states to 77390 states and 104360 transitions. [2020-10-14 02:46:48,299 INFO L78 Accepts]: Start accepts. Automaton has 77390 states and 104360 transitions. Word has length 437 [2020-10-14 02:46:48,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:46:48,300 INFO L479 AbstractCegarLoop]: Abstraction has 77390 states and 104360 transitions. [2020-10-14 02:46:48,300 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:46:48,300 INFO L276 IsEmpty]: Start isEmpty. Operand 77390 states and 104360 transitions. [2020-10-14 02:46:48,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 810 [2020-10-14 02:46:48,563 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:46:48,564 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:46:48,564 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 02:46:48,565 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:46:48,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:46:48,566 INFO L82 PathProgramCache]: Analyzing trace with hash -983615758, now seen corresponding path program 1 times [2020-10-14 02:46:48,567 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:46:48,567 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [256796310] [2020-10-14 02:46:48,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:46:48,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:46:48,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:46:49,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:46:53,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:46:53,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 825 [2020-10-14 02:46:53,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:46:53,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5079 [2020-10-14 02:46:53,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:46:53,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:46:53,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 02:46:53,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 02:46:53,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 02:46:53,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:46:53,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:46:53,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:46:53,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:46:53,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:46:53,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:46:53,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:46:53,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 02:46:53,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:46:53,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:46:53,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:46:53,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:46:53,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 02:46:53,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:46:53,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:46:54,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:46:54,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:46:54,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:46:54,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 02:46:54,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:46:54,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 02:46:54,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:46:54,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:46:54,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:46:54,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:46:54,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 02:46:54,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:46:54,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 02:46:54,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:46:54,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:46:54,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:46:54,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 696 [2020-10-14 02:46:54,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:46:54,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 467 [2020-10-14 02:46:54,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:46:54,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:46:54,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:46:54,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 693 [2020-10-14 02:46:54,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:46:54,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:46:54,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 02:46:54,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:46:55,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:46:55,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:46:55,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 408 [2020-10-14 02:46:55,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:46:55,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 02:46:55,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:46:55,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:46:55,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:46:55,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:46:55,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:46:55,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:46:55,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 02:46:55,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:46:55,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:46:55,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:46:55,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-14 02:46:55,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:46:55,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 02:46:55,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:46:55,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:46:55,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:46:55,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:46:55,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:46:55,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:46:56,165 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 76 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 02:46:56,165 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [256796310] [2020-10-14 02:46:56,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:46:56,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:46:56,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109196011] [2020-10-14 02:46:56,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:46:56,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:46:56,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:46:56,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:46:56,168 INFO L87 Difference]: Start difference. First operand 77390 states and 104360 transitions. Second operand 7 states. [2020-10-14 02:47:16,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:47:16,133 INFO L93 Difference]: Finished difference Result 180138 states and 251663 transitions. [2020-10-14 02:47:16,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 02:47:16,135 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 809 [2020-10-14 02:47:16,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:47:16,419 INFO L225 Difference]: With dead ends: 180138 [2020-10-14 02:47:16,419 INFO L226 Difference]: Without dead ends: 102758 [2020-10-14 02:47:16,537 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:47:16,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102758 states. [2020-10-14 02:47:21,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102758 to 97856. [2020-10-14 02:47:21,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97856 states. [2020-10-14 02:47:21,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97856 states to 97856 states and 121878 transitions. [2020-10-14 02:47:21,273 INFO L78 Accepts]: Start accepts. Automaton has 97856 states and 121878 transitions. Word has length 809 [2020-10-14 02:47:21,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:47:21,273 INFO L479 AbstractCegarLoop]: Abstraction has 97856 states and 121878 transitions. [2020-10-14 02:47:21,273 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:47:21,274 INFO L276 IsEmpty]: Start isEmpty. Operand 97856 states and 121878 transitions. [2020-10-14 02:47:21,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 911 [2020-10-14 02:47:21,442 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:47:21,443 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:47:21,443 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 02:47:21,443 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:47:21,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:47:21,444 INFO L82 PathProgramCache]: Analyzing trace with hash 36008295, now seen corresponding path program 1 times [2020-10-14 02:47:21,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:47:21,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [141307239] [2020-10-14 02:47:21,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:47:21,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:47:21,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:47:21,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:47:22,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:47:26,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:47:26,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 928 [2020-10-14 02:47:26,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:47:26,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-14 02:47:26,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:47:26,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:47:26,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:47:26,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 02:47:26,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 02:47:26,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:47:26,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:47:26,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:47:26,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:47:26,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:47:26,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:47:26,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:47:26,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:47:26,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:47:26,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:47:26,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:47:26,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:47:26,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:47:26,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:47:26,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:47:26,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:47:26,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:47:26,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:47:26,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-14 02:47:26,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:47:26,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 02:47:26,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:47:26,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:47:26,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:47:26,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:47:26,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 02:47:26,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:47:26,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-14 02:47:26,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:47:26,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:47:26,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:47:26,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 02:47:26,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:47:26,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 02:47:26,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:47:26,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:47:26,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:47:26,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:47:26,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-14 02:47:26,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:47:26,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-14 02:47:27,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:47:27,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:47:27,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:47:27,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 696 [2020-10-14 02:47:27,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:47:27,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-10-14 02:47:27,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:47:27,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:47:27,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:47:27,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 693 [2020-10-14 02:47:27,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:47:27,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:47:27,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 02:47:27,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:47:27,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:47:27,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:47:27,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 408 [2020-10-14 02:47:27,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:47:27,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 02:47:27,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:47:27,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:47:27,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:47:27,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:47:27,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:47:27,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:47:27,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 02:47:27,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:47:27,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:47:27,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:47:27,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-14 02:47:27,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:47:27,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 02:47:27,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:47:27,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:47:27,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:47:27,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:47:27,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:47:27,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:47:28,427 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 186 proven. 70 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2020-10-14 02:47:28,427 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [141307239] [2020-10-14 02:47:28,427 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:47:28,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:47:28,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787448852] [2020-10-14 02:47:28,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:47:28,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:47:28,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:47:28,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:47:28,430 INFO L87 Difference]: Start difference. First operand 97856 states and 121878 transitions. Second operand 7 states.