/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/Problem16_label50.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 03:50:36,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 03:50:36,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 03:50:36,832 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 03:50:36,832 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 03:50:36,840 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 03:50:36,842 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 03:50:36,845 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 03:50:36,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 03:50:36,849 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 03:50:36,850 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 03:50:36,851 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 03:50:36,851 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 03:50:36,854 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 03:50:36,856 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 03:50:36,857 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 03:50:36,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 03:50:36,861 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 03:50:36,862 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 03:50:36,871 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 03:50:36,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 03:50:36,874 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 03:50:36,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 03:50:36,875 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 03:50:36,887 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 03:50:36,887 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 03:50:36,887 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 03:50:36,891 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 03:50:36,892 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 03:50:36,893 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 03:50:36,893 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 03:50:36,895 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 03:50:36,896 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 03:50:36,897 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 03:50:36,898 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 03:50:36,898 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 03:50:36,902 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 03:50:36,902 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 03:50:36,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 03:50:36,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 03:50:36,903 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 03:50:36,906 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 03:50:36,941 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 03:50:36,941 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 03:50:36,943 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 03:50:36,944 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 03:50:36,944 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 03:50:36,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 03:50:36,944 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 03:50:36,945 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 03:50:36,945 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 03:50:36,945 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 03:50:36,946 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 03:50:36,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 03:50:36,946 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 03:50:36,947 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 03:50:36,947 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 03:50:36,947 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 03:50:36,947 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 03:50:36,947 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 03:50:36,948 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 03:50:36,948 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 03:50:36,948 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 03:50:36,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 03:50:36,949 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 03:50:36,949 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 03:50:36,949 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 03:50:36,949 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 03:50:36,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 03:50:36,949 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 03:50:36,950 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 03:50:36,950 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 03:50:37,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 03:50:37,250 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 03:50:37,253 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 03:50:37,255 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 03:50:37,255 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 03:50:37,256 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label50.c [2020-10-14 03:50:37,327 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/708ea0106/3d7df2e3894344c0a3934cd262b2c7cd/FLAG3647ac182 [2020-10-14 03:50:37,964 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 03:50:37,965 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label50.c [2020-10-14 03:50:37,979 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/708ea0106/3d7df2e3894344c0a3934cd262b2c7cd/FLAG3647ac182 [2020-10-14 03:50:38,132 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/708ea0106/3d7df2e3894344c0a3934cd262b2c7cd [2020-10-14 03:50:38,141 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 03:50:38,143 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 03:50:38,144 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 03:50:38,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 03:50:38,148 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 03:50:38,149 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:50:38" (1/1) ... [2020-10-14 03:50:38,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29fcb34f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:38, skipping insertion in model container [2020-10-14 03:50:38,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:50:38" (1/1) ... [2020-10-14 03:50:38,159 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 03:50:38,230 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 03:50:39,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:50:39,123 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 03:50:39,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:50:39,404 INFO L208 MainTranslator]: Completed translation [2020-10-14 03:50:39,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:39 WrapperNode [2020-10-14 03:50:39,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 03:50:39,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 03:50:39,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 03:50:39,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 03:50:39,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:39" (1/1) ... [2020-10-14 03:50:39,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:39" (1/1) ... [2020-10-14 03:50:39,465 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:39" (1/1) ... [2020-10-14 03:50:39,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:39" (1/1) ... [2020-10-14 03:50:39,521 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:39" (1/1) ... [2020-10-14 03:50:39,535 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:39" (1/1) ... [2020-10-14 03:50:39,551 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:39" (1/1) ... [2020-10-14 03:50:39,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 03:50:39,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 03:50:39,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 03:50:39,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 03:50:39,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:39" (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 03:50:39,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 03:50:39,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 03:50:39,631 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 03:50:39,631 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 03:50:39,632 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 03:50:39,632 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 03:50:39,632 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 03:50:39,632 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 03:50:39,632 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 03:50:39,633 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 03:50:39,633 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 03:50:39,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 03:50:39,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 03:50:41,792 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 03:50:41,793 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 03:50:41,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:50:41 BoogieIcfgContainer [2020-10-14 03:50:41,807 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 03:50:41,810 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 03:50:41,810 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 03:50:41,813 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 03:50:41,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:50:38" (1/3) ... [2020-10-14 03:50:41,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b7d17e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:50:41, skipping insertion in model container [2020-10-14 03:50:41,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:39" (2/3) ... [2020-10-14 03:50:41,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b7d17e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:50:41, skipping insertion in model container [2020-10-14 03:50:41,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:50:41" (3/3) ... [2020-10-14 03:50:41,819 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label50.c [2020-10-14 03:50:41,829 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 03:50:41,841 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 03:50:41,856 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 03:50:41,887 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 03:50:41,887 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 03:50:41,887 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 03:50:41,887 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 03:50:41,887 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 03:50:41,888 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 03:50:41,888 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 03:50:41,888 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 03:50:41,922 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 03:50:41,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-14 03:50:41,935 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:50:41,936 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:50:41,936 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:50:41,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:50:41,942 INFO L82 PathProgramCache]: Analyzing trace with hash 789303234, now seen corresponding path program 1 times [2020-10-14 03:50:41,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:50:41,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1398803469] [2020-10-14 03:50:41,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:50:42,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:42,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:42,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:42,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 03:50:42,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:42,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 320 [2020-10-14 03:50:42,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:42,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:42,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 03:50:42,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 03:50:42,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 03:50:42,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 03:50:42,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:50:42,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:42,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:42,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:42,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:50:42,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:42,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 03:50:42,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:42,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:42,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:50:42,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:42,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:50:42,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:42,678 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 03:50:42,679 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1398803469] [2020-10-14 03:50:42,681 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 03:50:42,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 03:50:42,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812565871] [2020-10-14 03:50:42,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:50:42,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:50:42,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:50:42,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:50:42,704 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 5 states. [2020-10-14 03:50:47,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:50:47,523 INFO L93 Difference]: Finished difference Result 1515 states and 2848 transitions. [2020-10-14 03:50:47,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 03:50:47,524 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2020-10-14 03:50:47,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:50:47,551 INFO L225 Difference]: With dead ends: 1515 [2020-10-14 03:50:47,551 INFO L226 Difference]: Without dead ends: 1038 [2020-10-14 03:50:47,563 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:50:47,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2020-10-14 03:50:47,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1031. [2020-10-14 03:50:47,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1031 states. [2020-10-14 03:50:47,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1666 transitions. [2020-10-14 03:50:47,686 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1666 transitions. Word has length 51 [2020-10-14 03:50:47,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:50:47,686 INFO L479 AbstractCegarLoop]: Abstraction has 1031 states and 1666 transitions. [2020-10-14 03:50:47,687 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:50:47,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1666 transitions. [2020-10-14 03:50:47,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-14 03:50:47,698 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:50:47,698 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, 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, 1, 1, 1, 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 03:50:47,699 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 03:50:47,699 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:50:47,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:50:47,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1016344007, now seen corresponding path program 1 times [2020-10-14 03:50:47,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:50:47,700 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2004140690] [2020-10-14 03:50:47,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:50:47,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:47,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:47,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:47,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:48,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:49,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:51,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:52,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:52,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-10-14 03:50:52,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:50:52,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-14 03:50:52,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:52,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:52,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:52,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-14 03:50:52,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 03:50:52,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:50:52,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:50:52,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:52,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:52,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:52,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:50:52,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:52,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 03:50:52,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:52,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:52,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:52,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:52,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:52,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:52,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:50:52,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:52,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:52,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:52,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 03:50:52,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:52,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 03:50:52,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:52,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:52,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:50:52,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:52,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 03:50:52,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:53,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-14 03:50:53,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:53,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:53,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:53,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 03:50:53,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:53,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-14 03:50:53,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:53,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:53,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:53,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:50:53,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-14 03:50:53,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:53,438 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 160 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:50:53,439 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2004140690] [2020-10-14 03:50:53,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:50:53,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:50:53,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217717289] [2020-10-14 03:50:53,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:50:53,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:50:53,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:50:53,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:50:53,443 INFO L87 Difference]: Start difference. First operand 1031 states and 1666 transitions. Second operand 7 states. [2020-10-14 03:50:56,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:50:56,887 INFO L93 Difference]: Finished difference Result 2761 states and 4578 transitions. [2020-10-14 03:50:56,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:50:56,887 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 218 [2020-10-14 03:50:56,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:50:56,900 INFO L225 Difference]: With dead ends: 2761 [2020-10-14 03:50:56,901 INFO L226 Difference]: Without dead ends: 1736 [2020-10-14 03:50:56,904 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:50:56,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1736 states. [2020-10-14 03:50:56,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1736 to 1727. [2020-10-14 03:50:56,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1727 states. [2020-10-14 03:50:56,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1727 states to 1727 states and 2622 transitions. [2020-10-14 03:50:56,989 INFO L78 Accepts]: Start accepts. Automaton has 1727 states and 2622 transitions. Word has length 218 [2020-10-14 03:50:56,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:50:56,992 INFO L479 AbstractCegarLoop]: Abstraction has 1727 states and 2622 transitions. [2020-10-14 03:50:56,992 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:50:56,992 INFO L276 IsEmpty]: Start isEmpty. Operand 1727 states and 2622 transitions. [2020-10-14 03:50:57,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-10-14 03:50:57,004 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:50:57,004 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:50:57,005 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 03:50:57,005 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:50:57,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:50:57,005 INFO L82 PathProgramCache]: Analyzing trace with hash 335938967, now seen corresponding path program 1 times [2020-10-14 03:50:57,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:50:57,006 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2081970399] [2020-10-14 03:50:57,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:50:57,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:57,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:57,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:58,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:58,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:00,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:00,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-10-14 03:51:00,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:51:00,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2985 [2020-10-14 03:51:00,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:00,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:00,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:00,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-14 03:51:00,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 03:51:00,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:00,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:51:00,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:00,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:00,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:00,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:51:00,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:00,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:51:00,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:00,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:00,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:00,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:00,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:00,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:00,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:51:00,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:00,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:00,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:00,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:51:00,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:00,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 03:51:00,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:00,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:00,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:51:00,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:00,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 03:51:00,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:00,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-14 03:51:00,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:00,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:00,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:00,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 03:51:00,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:00,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-14 03:51:00,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:00,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:00,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:00,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:51:00,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-14 03:51:00,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 03:51:00,481 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 177 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:51:00,482 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2081970399] [2020-10-14 03:51:00,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:51:00,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:51:00,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593955574] [2020-10-14 03:51:00,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:51:00,484 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:51:00,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:51:00,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:51:00,485 INFO L87 Difference]: Start difference. First operand 1727 states and 2622 transitions. Second operand 8 states. [2020-10-14 03:51:05,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:51:05,759 INFO L93 Difference]: Finished difference Result 4184 states and 6393 transitions. [2020-10-14 03:51:05,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 03:51:05,760 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 258 [2020-10-14 03:51:05,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:51:05,771 INFO L225 Difference]: With dead ends: 4184 [2020-10-14 03:51:05,771 INFO L226 Difference]: Without dead ends: 2106 [2020-10-14 03:51:05,776 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-14 03:51:05,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2106 states. [2020-10-14 03:51:05,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2106 to 2077. [2020-10-14 03:51:05,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2077 states. [2020-10-14 03:51:05,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2077 states to 2077 states and 2377 transitions. [2020-10-14 03:51:05,832 INFO L78 Accepts]: Start accepts. Automaton has 2077 states and 2377 transitions. Word has length 258 [2020-10-14 03:51:05,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:51:05,833 INFO L479 AbstractCegarLoop]: Abstraction has 2077 states and 2377 transitions. [2020-10-14 03:51:05,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:51:05,833 INFO L276 IsEmpty]: Start isEmpty. Operand 2077 states and 2377 transitions. [2020-10-14 03:51:05,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2020-10-14 03:51:05,839 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:51:05,840 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:51:05,840 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 03:51:05,840 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:51:05,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:51:05,841 INFO L82 PathProgramCache]: Analyzing trace with hash -618957049, now seen corresponding path program 1 times [2020-10-14 03:51:05,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:51:05,841 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [306114680] [2020-10-14 03:51:05,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:51:05,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:05,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:05,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:06,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:09,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:10,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:10,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:10,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 382 [2020-10-14 03:51:10,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:51:10,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-14 03:51:10,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:10,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:10,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:10,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-14 03:51:10,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 03:51:10,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:10,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:51:10,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:10,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:10,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:10,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:51:10,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:10,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:51:10,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:10,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:10,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:10,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:10,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:10,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:10,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:51:11,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:11,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:11,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:11,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:51:11,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:11,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 03:51:11,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:11,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:11,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:51:11,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:11,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 03:51:11,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:11,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-14 03:51:11,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:11,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:11,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:11,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:51:11,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:11,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-14 03:51:11,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:11,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:11,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:11,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:51:11,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 03:51:11,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:11,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2020-10-14 03:51:11,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:11,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:11,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:11,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 03:51:11,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:11,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 03:51:11,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:11,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:11,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:11,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-14 03:51:11,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:11,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:11,473 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 243 proven. 91 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2020-10-14 03:51:11,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [306114680] [2020-10-14 03:51:11,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:51:11,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:51:11,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985936337] [2020-10-14 03:51:11,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:51:11,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:51:11,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:51:11,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:51:11,476 INFO L87 Difference]: Start difference. First operand 2077 states and 2377 transitions. Second operand 7 states. [2020-10-14 03:51:15,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:51:15,310 INFO L93 Difference]: Finished difference Result 5950 states and 7002 transitions. [2020-10-14 03:51:15,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:51:15,310 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 368 [2020-10-14 03:51:15,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:51:15,332 INFO L225 Difference]: With dead ends: 5950 [2020-10-14 03:51:15,332 INFO L226 Difference]: Without dead ends: 3879 [2020-10-14 03:51:15,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:51:15,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3879 states. [2020-10-14 03:51:15,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3879 to 3464. [2020-10-14 03:51:15,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3464 states. [2020-10-14 03:51:15,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3464 states to 3464 states and 3871 transitions. [2020-10-14 03:51:15,432 INFO L78 Accepts]: Start accepts. Automaton has 3464 states and 3871 transitions. Word has length 368 [2020-10-14 03:51:15,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:51:15,433 INFO L479 AbstractCegarLoop]: Abstraction has 3464 states and 3871 transitions. [2020-10-14 03:51:15,433 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:51:15,433 INFO L276 IsEmpty]: Start isEmpty. Operand 3464 states and 3871 transitions. [2020-10-14 03:51:15,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2020-10-14 03:51:15,442 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:51:15,443 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:51:15,443 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 03:51:15,444 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:51:15,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:51:15,444 INFO L82 PathProgramCache]: Analyzing trace with hash 748202866, now seen corresponding path program 1 times [2020-10-14 03:51:15,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:51:15,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1760215248] [2020-10-14 03:51:15,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:51:15,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:15,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:15,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:15,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:18,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:18,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:20,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:20,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 411 [2020-10-14 03:51:20,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:51:20,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 03:51:20,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:20,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:20,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:20,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 154 [2020-10-14 03:51:20,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 03:51:20,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:20,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:51:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:20,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:20,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:20,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:51:20,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:20,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:51:20,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:20,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:20,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:20,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:20,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:20,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:20,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:51:20,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:20,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:20,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:20,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:51:20,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:20,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-14 03:51:20,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:20,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:20,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:51:20,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:20,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 03:51:20,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:20,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-14 03:51:20,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:20,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:20,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:20,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:51:20,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:20,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-14 03:51:20,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:20,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:20,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:20,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:51:20,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 03:51:20,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:21,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2020-10-14 03:51:21,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:21,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:21,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:21,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 03:51:21,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:21,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 03:51:21,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:21,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:21,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:21,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-14 03:51:21,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:21,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:21,419 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 243 proven. 91 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2020-10-14 03:51:21,419 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1760215248] [2020-10-14 03:51:21,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:51:21,420 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:51:21,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63591275] [2020-10-14 03:51:21,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:51:21,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:51:21,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:51:21,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:51:21,421 INFO L87 Difference]: Start difference. First operand 3464 states and 3871 transitions. Second operand 7 states. [2020-10-14 03:51:25,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:51:25,522 INFO L93 Difference]: Finished difference Result 7724 states and 9027 transitions. [2020-10-14 03:51:25,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:51:25,522 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 397 [2020-10-14 03:51:25,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:51:25,545 INFO L225 Difference]: With dead ends: 7724 [2020-10-14 03:51:25,546 INFO L226 Difference]: Without dead ends: 4607 [2020-10-14 03:51:25,555 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:51:25,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4607 states. [2020-10-14 03:51:25,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4607 to 4515. [2020-10-14 03:51:25,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4515 states. [2020-10-14 03:51:25,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4515 states to 4515 states and 5034 transitions. [2020-10-14 03:51:25,688 INFO L78 Accepts]: Start accepts. Automaton has 4515 states and 5034 transitions. Word has length 397 [2020-10-14 03:51:25,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:51:25,689 INFO L479 AbstractCegarLoop]: Abstraction has 4515 states and 5034 transitions. [2020-10-14 03:51:25,689 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:51:25,689 INFO L276 IsEmpty]: Start isEmpty. Operand 4515 states and 5034 transitions. [2020-10-14 03:51:25,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2020-10-14 03:51:25,706 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:51:25,707 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:51:25,707 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 03:51:25,707 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:51:25,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:51:25,708 INFO L82 PathProgramCache]: Analyzing trace with hash 1728728743, now seen corresponding path program 1 times [2020-10-14 03:51:25,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:51:25,709 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [405390420] [2020-10-14 03:51:25,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:51:25,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:25,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:25,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:26,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:29,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:29,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:30,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:30,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 462 [2020-10-14 03:51:30,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:51:30,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-14 03:51:30,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:30,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:30,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:30,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 205 [2020-10-14 03:51:30,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 03:51:30,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:30,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:51:30,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:30,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:30,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:30,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:51:30,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:30,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:51:30,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:30,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:30,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:30,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:30,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:30,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:30,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:51:30,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:30,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:31,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:31,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 03:51:31,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:31,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-14 03:51:31,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:31,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:31,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:51:31,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:31,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 03:51:31,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:31,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-14 03:51:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:31,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:31,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:31,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:51:31,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:31,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-14 03:51:31,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:31,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:31,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:31,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:51:31,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 03:51:31,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:31,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2020-10-14 03:51:31,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:31,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:31,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:31,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 03:51:31,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:31,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 03:51:31,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:31,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:31,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:31,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-14 03:51:31,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:31,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:31,576 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 243 proven. 91 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2020-10-14 03:51:31,576 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [405390420] [2020-10-14 03:51:31,576 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:51:31,576 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:51:31,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030904075] [2020-10-14 03:51:31,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:51:31,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:51:31,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:51:31,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:51:31,578 INFO L87 Difference]: Start difference. First operand 4515 states and 5034 transitions. Second operand 7 states. [2020-10-14 03:51:35,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:51:35,514 INFO L93 Difference]: Finished difference Result 9430 states and 10693 transitions. [2020-10-14 03:51:35,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:51:35,515 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 448 [2020-10-14 03:51:35,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:51:35,538 INFO L225 Difference]: With dead ends: 9430 [2020-10-14 03:51:35,538 INFO L226 Difference]: Without dead ends: 5605 [2020-10-14 03:51:35,547 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 03:51:35,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5605 states. [2020-10-14 03:51:35,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5605 to 5530. [2020-10-14 03:51:35,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5530 states. [2020-10-14 03:51:35,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5530 states to 5530 states and 6105 transitions. [2020-10-14 03:51:35,676 INFO L78 Accepts]: Start accepts. Automaton has 5530 states and 6105 transitions. Word has length 448 [2020-10-14 03:51:35,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:51:35,677 INFO L479 AbstractCegarLoop]: Abstraction has 5530 states and 6105 transitions. [2020-10-14 03:51:35,677 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:51:35,677 INFO L276 IsEmpty]: Start isEmpty. Operand 5530 states and 6105 transitions. [2020-10-14 03:51:35,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2020-10-14 03:51:35,696 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:51:35,697 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:51:35,697 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 03:51:35,697 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:51:35,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:51:35,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1997797698, now seen corresponding path program 1 times [2020-10-14 03:51:35,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:51:35,699 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [291344416] [2020-10-14 03:51:35,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:51:35,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:35,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:35,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:36,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:39,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:39,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:40,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:40,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:40,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 529 [2020-10-14 03:51:40,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:51:40,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 03:51:40,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:40,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:40,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:40,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 272 [2020-10-14 03:51:40,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 03:51:40,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:40,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:51:40,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:40,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:40,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:40,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:51:40,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:40,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:51:40,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:40,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:40,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:40,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:40,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:40,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:40,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:51:40,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:40,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:41,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:41,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:51:41,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:41,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-14 03:51:41,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:41,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:41,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:51:41,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:41,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 257 [2020-10-14 03:51:41,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:41,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2020-10-14 03:51:41,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:41,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:41,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:41,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:51:41,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:41,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-14 03:51:41,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:41,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:41,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:41,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:51:41,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 03:51:41,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:41,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2020-10-14 03:51:41,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:41,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:41,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:41,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 03:51:41,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:41,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 03:51:41,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:41,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:41,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:41,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-14 03:51:41,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:41,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:41,567 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 243 proven. 91 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2020-10-14 03:51:41,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [291344416] [2020-10-14 03:51:41,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:51:41,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:51:41,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731642214] [2020-10-14 03:51:41,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:51:41,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:51:41,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:51:41,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:51:41,570 INFO L87 Difference]: Start difference. First operand 5530 states and 6105 transitions. Second operand 8 states. [2020-10-14 03:51:47,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:51:47,334 INFO L93 Difference]: Finished difference Result 13895 states and 16045 transitions. [2020-10-14 03:51:47,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:51:47,335 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 515 [2020-10-14 03:51:47,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:51:47,371 INFO L225 Difference]: With dead ends: 13895 [2020-10-14 03:51:47,371 INFO L226 Difference]: Without dead ends: 8716 [2020-10-14 03:51:47,385 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-14 03:51:47,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8716 states. [2020-10-14 03:51:47,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8716 to 8603. [2020-10-14 03:51:47,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8603 states. [2020-10-14 03:51:47,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8603 states to 8603 states and 9464 transitions. [2020-10-14 03:51:47,614 INFO L78 Accepts]: Start accepts. Automaton has 8603 states and 9464 transitions. Word has length 515 [2020-10-14 03:51:47,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:51:47,615 INFO L479 AbstractCegarLoop]: Abstraction has 8603 states and 9464 transitions. [2020-10-14 03:51:47,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:51:47,616 INFO L276 IsEmpty]: Start isEmpty. Operand 8603 states and 9464 transitions. [2020-10-14 03:51:47,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 539 [2020-10-14 03:51:47,645 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:51:47,647 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:51:47,647 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 03:51:47,648 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:51:47,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:51:47,648 INFO L82 PathProgramCache]: Analyzing trace with hash 1597091555, now seen corresponding path program 1 times [2020-10-14 03:51:47,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:51:47,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1311984198] [2020-10-14 03:51:47,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:51:47,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:47,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:47,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:48,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:50,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:50,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:51,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:52,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:52,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 552 [2020-10-14 03:51:52,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:51:52,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 03:51:52,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:52,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:52,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:52,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 286 [2020-10-14 03:51:52,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 03:51:52,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:52,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:51:52,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:52,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:52,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:52,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:51:52,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:52,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:51:52,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:52,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:52,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:52,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:52,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:52,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:52,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:51:52,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:52,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:52,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:52,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:51:52,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:52,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-14 03:51:52,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:52,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:52,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:51:52,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:52,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 271 [2020-10-14 03:51:52,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:53,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2020-10-14 03:51:53,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:53,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:53,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:53,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:51:53,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:53,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 03:51:53,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:53,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:53,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:53,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:51:53,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 03:51:53,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:53,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2020-10-14 03:51:53,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:53,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:53,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:53,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 03:51:53,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:53,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 03:51:53,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:53,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:53,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:53,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 99 [2020-10-14 03:51:53,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:53,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:53,328 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 243 proven. 100 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2020-10-14 03:51:53,328 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1311984198] [2020-10-14 03:51:53,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:51:53,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:51:53,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471426828] [2020-10-14 03:51:53,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:51:53,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:51:53,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:51:53,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:51:53,330 INFO L87 Difference]: Start difference. First operand 8603 states and 9464 transitions. Second operand 7 states. [2020-10-14 03:51:55,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:51:55,906 INFO L93 Difference]: Finished difference Result 18898 states and 21018 transitions. [2020-10-14 03:51:55,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:51:55,907 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 538 [2020-10-14 03:51:55,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:51:55,946 INFO L225 Difference]: With dead ends: 18898 [2020-10-14 03:51:55,946 INFO L226 Difference]: Without dead ends: 10313 [2020-10-14 03:51:55,963 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:51:55,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10313 states. [2020-10-14 03:51:56,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10313 to 9280. [2020-10-14 03:51:56,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9280 states. [2020-10-14 03:51:56,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9280 states to 9280 states and 10163 transitions. [2020-10-14 03:51:56,138 INFO L78 Accepts]: Start accepts. Automaton has 9280 states and 10163 transitions. Word has length 538 [2020-10-14 03:51:56,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:51:56,138 INFO L479 AbstractCegarLoop]: Abstraction has 9280 states and 10163 transitions. [2020-10-14 03:51:56,138 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:51:56,139 INFO L276 IsEmpty]: Start isEmpty. Operand 9280 states and 10163 transitions. [2020-10-14 03:51:56,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 705 [2020-10-14 03:51:56,159 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:51:56,161 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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] [2020-10-14 03:51:56,161 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 03:51:56,162 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:51:56,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:51:56,162 INFO L82 PathProgramCache]: Analyzing trace with hash 950398575, now seen corresponding path program 1 times [2020-10-14 03:51:56,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:51:56,163 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1623039560] [2020-10-14 03:51:56,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:51:56,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:56,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:56,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:56,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:57,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:01,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:01,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 720 [2020-10-14 03:52:01,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:52:01,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-14 03:52:01,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:01,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:01,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:01,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 291 [2020-10-14 03:52:01,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:52:01,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:01,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:52:01,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:01,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:01,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:01,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:52:01,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:01,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:52:01,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:01,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:01,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:01,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:01,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:01,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:01,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:52:01,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:01,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:01,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:01,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:52:01,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:01,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 03:52:01,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:01,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:01,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:01,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:01,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:01,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:01,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 03:52:01,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:01,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:01,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:01,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:52:01,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:01,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 03:52:01,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:01,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:01,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:52:01,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:01,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 03:52:01,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:01,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2020-10-14 03:52:01,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:01,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:01,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:01,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:52:01,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:01,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 338 [2020-10-14 03:52:01,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:01,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:01,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:01,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:52:01,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:52:01,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:52:02,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 560 [2020-10-14 03:52:02,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:02,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:02,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:02,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 03:52:02,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:02,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 03:52:02,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:02,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:02,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:02,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 99 [2020-10-14 03:52:02,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:02,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:02,890 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 462 proven. 100 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2020-10-14 03:52:02,891 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1623039560] [2020-10-14 03:52:02,891 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:52:02,891 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:52:02,891 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050644950] [2020-10-14 03:52:02,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:52:02,892 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:52:02,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:52:02,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:52:02,893 INFO L87 Difference]: Start difference. First operand 9280 states and 10163 transitions. Second operand 7 states. [2020-10-14 03:52:05,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:52:05,972 INFO L93 Difference]: Finished difference Result 19990 states and 21991 transitions. [2020-10-14 03:52:05,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:52:05,973 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 704 [2020-10-14 03:52:05,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:52:06,001 INFO L225 Difference]: With dead ends: 19990 [2020-10-14 03:52:06,001 INFO L226 Difference]: Without dead ends: 10716 [2020-10-14 03:52:06,019 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 03:52:06,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10716 states. [2020-10-14 03:52:06,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10716 to 10648. [2020-10-14 03:52:06,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10648 states. [2020-10-14 03:52:06,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10648 states to 10648 states and 11583 transitions. [2020-10-14 03:52:06,190 INFO L78 Accepts]: Start accepts. Automaton has 10648 states and 11583 transitions. Word has length 704 [2020-10-14 03:52:06,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:52:06,192 INFO L479 AbstractCegarLoop]: Abstraction has 10648 states and 11583 transitions. [2020-10-14 03:52:06,192 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:52:06,192 INFO L276 IsEmpty]: Start isEmpty. Operand 10648 states and 11583 transitions. [2020-10-14 03:52:06,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 721 [2020-10-14 03:52:06,220 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:52:06,220 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:52:06,221 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 03:52:06,221 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:52:06,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:52:06,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1404558185, now seen corresponding path program 1 times [2020-10-14 03:52:06,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:52:06,222 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [443142540] [2020-10-14 03:52:06,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:52:06,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:06,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:06,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:06,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:07,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:11,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:11,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:11,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 736 [2020-10-14 03:52:11,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:52:11,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5076 [2020-10-14 03:52:11,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:11,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:11,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:11,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 307 [2020-10-14 03:52:11,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:52:11,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:11,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:52:11,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:11,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:11,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:11,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:52:11,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:11,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:52:11,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:11,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:11,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:11,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:11,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:11,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:11,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:52:11,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:11,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:11,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:11,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 03:52:11,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:11,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 03:52:11,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:11,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:11,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:11,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:11,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:11,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:11,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 03:52:11,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:11,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:11,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:11,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 03:52:11,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:11,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 03:52:11,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:11,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:11,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:52:11,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:11,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 03:52:11,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:11,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2020-10-14 03:52:11,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:11,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:11,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:11,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:52:11,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:11,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-10-14 03:52:11,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:11,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:11,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:11,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:52:11,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:52:11,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:12,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 576 [2020-10-14 03:52:12,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:12,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:12,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:12,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 03:52:12,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:12,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 03:52:12,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:12,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:12,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:12,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 99 [2020-10-14 03:52:12,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:12,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:13,238 INFO L134 CoverageAnalysis]: Checked inductivity of 873 backedges. 478 proven. 100 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2020-10-14 03:52:13,238 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [443142540] [2020-10-14 03:52:13,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:52:13,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:52:13,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077452304] [2020-10-14 03:52:13,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:52:13,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:52:13,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:52:13,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:52:13,240 INFO L87 Difference]: Start difference. First operand 10648 states and 11583 transitions. Second operand 8 states. [2020-10-14 03:52:17,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:52:17,521 INFO L93 Difference]: Finished difference Result 23501 states and 26340 transitions. [2020-10-14 03:52:17,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 03:52:17,522 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 720 [2020-10-14 03:52:17,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:52:17,574 INFO L225 Difference]: With dead ends: 23501 [2020-10-14 03:52:17,574 INFO L226 Difference]: Without dead ends: 12859 [2020-10-14 03:52:17,596 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-14 03:52:17,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12859 states. [2020-10-14 03:52:17,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12859 to 12017. [2020-10-14 03:52:17,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12017 states. [2020-10-14 03:52:17,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12017 states to 12017 states and 13086 transitions. [2020-10-14 03:52:17,829 INFO L78 Accepts]: Start accepts. Automaton has 12017 states and 13086 transitions. Word has length 720 [2020-10-14 03:52:17,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:52:17,831 INFO L479 AbstractCegarLoop]: Abstraction has 12017 states and 13086 transitions. [2020-10-14 03:52:17,831 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:52:17,831 INFO L276 IsEmpty]: Start isEmpty. Operand 12017 states and 13086 transitions. [2020-10-14 03:52:17,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 798 [2020-10-14 03:52:17,852 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:52:17,853 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-14 03:52:17,853 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 03:52:17,854 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:52:17,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:52:17,854 INFO L82 PathProgramCache]: Analyzing trace with hash -799858930, now seen corresponding path program 1 times [2020-10-14 03:52:17,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:52:17,855 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [210485720] [2020-10-14 03:52:17,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:52:17,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:18,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:18,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:18,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:19,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:23,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:23,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 815 [2020-10-14 03:52:23,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:52:23,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-10-14 03:52:23,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:23,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:23,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:23,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-10-14 03:52:23,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:52:23,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:23,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:52:23,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:23,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:23,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:23,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:52:23,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:23,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:52:23,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:23,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:23,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:23,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:23,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:23,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:23,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:52:23,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:23,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:23,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:23,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:52:23,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:23,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 03:52:23,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:23,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:23,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:52:23,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:23,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 03:52:23,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:23,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 03:52:23,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:23,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:23,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:23,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:52:23,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:23,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-14 03:52:23,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:23,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:23,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:23,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:52:23,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:52:23,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:23,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2020-10-14 03:52:23,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:23,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:23,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:23,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:52:23,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:23,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 03:52:23,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:23,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:23,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:23,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 03:52:23,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:23,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:23,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2020-10-14 03:52:23,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:23,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:23,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:23,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:52:23,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:23,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 03:52:23,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:23,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:23,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:23,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:52:23,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:23,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:23,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 539 [2020-10-14 03:52:23,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:23,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:23,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:23,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:52:23,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:23,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 03:52:23,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:23,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:23,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:23,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 03:52:23,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:23,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:24,030 INFO L134 CoverageAnalysis]: Checked inductivity of 1493 backedges. 364 proven. 389 refuted. 0 times theorem prover too weak. 740 trivial. 0 not checked. [2020-10-14 03:52:24,030 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [210485720] [2020-10-14 03:52:24,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:52:24,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:52:24,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997845036] [2020-10-14 03:52:24,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:52:24,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:52:24,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:52:24,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:52:24,032 INFO L87 Difference]: Start difference. First operand 12017 states and 13086 transitions. Second operand 7 states. [2020-10-14 03:52:27,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:52:27,695 INFO L93 Difference]: Finished difference Result 27661 states and 31213 transitions. [2020-10-14 03:52:27,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:52:27,696 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 797 [2020-10-14 03:52:27,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:52:27,745 INFO L225 Difference]: With dead ends: 27661 [2020-10-14 03:52:27,745 INFO L226 Difference]: Without dead ends: 15650 [2020-10-14 03:52:27,774 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:52:27,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15650 states. [2020-10-14 03:52:28,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15650 to 15087. [2020-10-14 03:52:28,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15087 states. [2020-10-14 03:52:28,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15087 states to 15087 states and 16529 transitions. [2020-10-14 03:52:28,092 INFO L78 Accepts]: Start accepts. Automaton has 15087 states and 16529 transitions. Word has length 797 [2020-10-14 03:52:28,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:52:28,092 INFO L479 AbstractCegarLoop]: Abstraction has 15087 states and 16529 transitions. [2020-10-14 03:52:28,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:52:28,093 INFO L276 IsEmpty]: Start isEmpty. Operand 15087 states and 16529 transitions. [2020-10-14 03:52:28,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 802 [2020-10-14 03:52:28,121 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:52:28,123 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-14 03:52:28,123 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 03:52:28,123 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:52:28,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:52:28,124 INFO L82 PathProgramCache]: Analyzing trace with hash -44143966, now seen corresponding path program 1 times [2020-10-14 03:52:28,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:52:28,124 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [462905669] [2020-10-14 03:52:28,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:52:28,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:28,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:28,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:29,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:31,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:32,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:33,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:33,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:33,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 817 [2020-10-14 03:52:33,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:52:33,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 03:52:33,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:33,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:33,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:33,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 03:52:33,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 279 [2020-10-14 03:52:33,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:33,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:52:33,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:33,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:33,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:33,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:52:33,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:33,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:52:33,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:33,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:33,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:33,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:33,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:33,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:33,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:52:33,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:33,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:33,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:33,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 03:52:33,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:33,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 03:52:33,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:33,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:33,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:52:33,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:33,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 03:52:33,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:33,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 03:52:33,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:33,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:33,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:33,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:52:33,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:33,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-10-14 03:52:33,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:33,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:33,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:33,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:52:33,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 277 [2020-10-14 03:52:33,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:33,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2020-10-14 03:52:33,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:33,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:33,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:33,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:52:33,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:33,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 03:52:33,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:33,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:33,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:33,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 03:52:33,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:33,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:33,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 657 [2020-10-14 03:52:33,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:33,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:33,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:33,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 03:52:33,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:33,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 03:52:33,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:33,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:33,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:33,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 99 [2020-10-14 03:52:33,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:33,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:34,294 INFO L134 CoverageAnalysis]: Checked inductivity of 951 backedges. 281 proven. 370 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2020-10-14 03:52:34,294 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [462905669] [2020-10-14 03:52:34,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:52:34,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:52:34,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80426868] [2020-10-14 03:52:34,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:52:34,296 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:52:34,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:52:34,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:52:34,296 INFO L87 Difference]: Start difference. First operand 15087 states and 16529 transitions. Second operand 8 states. [2020-10-14 03:52:37,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:52:37,093 INFO L93 Difference]: Finished difference Result 32916 states and 36242 transitions. [2020-10-14 03:52:37,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:52:37,094 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 801 [2020-10-14 03:52:37,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:52:37,131 INFO L225 Difference]: With dead ends: 32916 [2020-10-14 03:52:37,131 INFO L226 Difference]: Without dead ends: 17835 [2020-10-14 03:52:37,151 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-14 03:52:37,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17835 states. [2020-10-14 03:52:37,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17835 to 17789. [2020-10-14 03:52:37,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17789 states. [2020-10-14 03:52:37,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17789 states to 17789 states and 19133 transitions. [2020-10-14 03:52:37,406 INFO L78 Accepts]: Start accepts. Automaton has 17789 states and 19133 transitions. Word has length 801 [2020-10-14 03:52:37,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:52:37,406 INFO L479 AbstractCegarLoop]: Abstraction has 17789 states and 19133 transitions. [2020-10-14 03:52:37,406 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:52:37,407 INFO L276 IsEmpty]: Start isEmpty. Operand 17789 states and 19133 transitions. [2020-10-14 03:52:37,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 951 [2020-10-14 03:52:37,435 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:52:37,438 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:52:37,438 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 03:52:37,438 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:52:37,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:52:37,439 INFO L82 PathProgramCache]: Analyzing trace with hash 586224763, now seen corresponding path program 1 times [2020-10-14 03:52:37,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:52:37,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [192971746] [2020-10-14 03:52:37,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:52:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:37,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:37,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:37,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:38,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:42,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:42,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 966 [2020-10-14 03:52:42,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:52:42,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-14 03:52:42,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:42,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:42,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:42,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 537 [2020-10-14 03:52:42,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:52:42,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:42,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:52:42,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:42,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:42,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:42,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:52:42,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:42,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:52:42,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:42,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:42,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:42,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:42,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:42,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:42,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:52:42,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:42,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:42,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:42,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:52:42,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:42,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 03:52:42,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:42,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:42,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:42,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:42,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:42,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:42,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:52:42,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:42,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:43,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:43,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:52:43,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:43,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-10-14 03:52:43,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:43,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:43,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:52:43,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:43,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 271 [2020-10-14 03:52:43,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:43,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:52:43,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:43,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:43,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:43,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:52:43,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:43,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-10-14 03:52:43,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:43,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:43,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:43,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:52:43,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:52:43,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:43,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 806 [2020-10-14 03:52:43,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:43,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:43,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:43,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 03:52:43,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:43,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 03:52:43,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:43,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:43,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:43,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 99 [2020-10-14 03:52:43,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:43,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:44,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1250 backedges. 705 proven. 100 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2020-10-14 03:52:44,278 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [192971746] [2020-10-14 03:52:44,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:52:44,279 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:52:44,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952839203] [2020-10-14 03:52:44,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:52:44,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:52:44,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:52:44,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:52:44,280 INFO L87 Difference]: Start difference. First operand 17789 states and 19133 transitions. Second operand 8 states. [2020-10-14 03:52:48,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:52:48,773 INFO L93 Difference]: Finished difference Result 37848 states and 41556 transitions. [2020-10-14 03:52:48,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:52:48,775 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 950 [2020-10-14 03:52:48,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:52:48,824 INFO L225 Difference]: With dead ends: 37848 [2020-10-14 03:52:48,825 INFO L226 Difference]: Without dead ends: 20065 [2020-10-14 03:52:48,850 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-14 03:52:48,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20065 states. [2020-10-14 03:52:49,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20065 to 19817. [2020-10-14 03:52:49,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19817 states. [2020-10-14 03:52:49,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19817 states to 19817 states and 21253 transitions. [2020-10-14 03:52:49,188 INFO L78 Accepts]: Start accepts. Automaton has 19817 states and 21253 transitions. Word has length 950 [2020-10-14 03:52:49,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:52:49,189 INFO L479 AbstractCegarLoop]: Abstraction has 19817 states and 21253 transitions. [2020-10-14 03:52:49,189 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:52:49,189 INFO L276 IsEmpty]: Start isEmpty. Operand 19817 states and 21253 transitions. [2020-10-14 03:52:49,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 982 [2020-10-14 03:52:49,218 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:52:49,219 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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 03:52:49,219 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 03:52:49,219 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:52:49,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:52:49,220 INFO L82 PathProgramCache]: Analyzing trace with hash 359798186, now seen corresponding path program 1 times [2020-10-14 03:52:49,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:52:49,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [996105558] [2020-10-14 03:52:49,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:52:49,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:49,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:49,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:49,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:50,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:51,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:54,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:54,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1001 [2020-10-14 03:52:54,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:52:54,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-14 03:52:54,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:54,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:54,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:54,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 331 [2020-10-14 03:52:54,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:52:54,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:54,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:52:54,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:54,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:54,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:54,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:52:54,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:54,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:52:54,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:54,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:54,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:54,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:54,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:54,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:54,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:52:54,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:54,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:54,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:54,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:52:54,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:54,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 03:52:54,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:54,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:54,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:54,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:54,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:54,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:54,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:52:54,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:54,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:54,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:54,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:52:54,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:54,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 03:52:54,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:54,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:54,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:52:54,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:54,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 03:52:54,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:54,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-14 03:52:54,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:54,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:54,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:54,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:52:54,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:54,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 03:52:54,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:54,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:54,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:54,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:52:54,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:52:54,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:54,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2020-10-14 03:52:54,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:54,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:54,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:54,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:52:54,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:54,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 03:52:54,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:54,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:54,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:54,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 03:52:54,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:54,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:54,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 613 [2020-10-14 03:52:54,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:54,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:54,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:54,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:52:54,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:54,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 03:52:54,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:54,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:54,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:54,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:52:54,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:54,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:54,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-10-14 03:52:54,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:54,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:54,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:54,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:52:54,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:54,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 03:52:54,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:54,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:54,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:54,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 03:52:54,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:54,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:55,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1983 backedges. 501 proven. 389 refuted. 0 times theorem prover too weak. 1093 trivial. 0 not checked. [2020-10-14 03:52:55,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [996105558] [2020-10-14 03:52:55,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:52:55,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:52:55,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686649076] [2020-10-14 03:52:55,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:52:55,455 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:52:55,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:52:55,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:52:55,455 INFO L87 Difference]: Start difference. First operand 19817 states and 21253 transitions. Second operand 7 states. [2020-10-14 03:52:58,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:52:58,711 INFO L93 Difference]: Finished difference Result 42291 states and 46583 transitions. [2020-10-14 03:52:58,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:52:58,717 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 981 [2020-10-14 03:52:58,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:52:58,773 INFO L225 Difference]: With dead ends: 42291 [2020-10-14 03:52:58,773 INFO L226 Difference]: Without dead ends: 22480 [2020-10-14 03:52:58,803 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:52:58,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22480 states. [2020-10-14 03:52:59,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22480 to 21510. [2020-10-14 03:52:59,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21510 states. [2020-10-14 03:52:59,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21510 states to 21510 states and 23013 transitions. [2020-10-14 03:52:59,168 INFO L78 Accepts]: Start accepts. Automaton has 21510 states and 23013 transitions. Word has length 981 [2020-10-14 03:52:59,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:52:59,169 INFO L479 AbstractCegarLoop]: Abstraction has 21510 states and 23013 transitions. [2020-10-14 03:52:59,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:52:59,169 INFO L276 IsEmpty]: Start isEmpty. Operand 21510 states and 23013 transitions. [2020-10-14 03:52:59,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1007 [2020-10-14 03:52:59,196 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:52:59,196 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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 03:52:59,197 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 03:52:59,197 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:52:59,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:52:59,197 INFO L82 PathProgramCache]: Analyzing trace with hash 658175795, now seen corresponding path program 1 times [2020-10-14 03:52:59,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:52:59,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1649835396] [2020-10-14 03:52:59,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:52:59,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:59,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:59,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:59,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:59,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:59,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:04,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:04,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1026 [2020-10-14 03:53:04,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:53:04,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-14 03:53:04,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:04,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:04,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:04,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 356 [2020-10-14 03:53:04,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:53:04,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:04,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:53:04,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:04,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:04,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:04,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:53:04,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:04,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:53:04,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:04,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:04,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:04,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:04,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:04,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:04,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:53:04,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:04,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:04,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:04,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:53:04,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:04,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 03:53:04,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:04,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:04,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:04,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:04,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:04,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:04,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:53:04,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:04,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:04,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:04,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 03:53:04,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:04,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 03:53:04,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:04,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:04,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:53:04,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:04,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 03:53:04,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:04,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-14 03:53:04,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:04,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:05,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:05,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:53:05,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:05,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-14 03:53:05,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:05,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:05,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:05,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:53:05,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:53:05,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:05,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2020-10-14 03:53:05,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:05,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:05,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:05,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:53:05,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:05,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 03:53:05,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:05,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:05,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:05,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 03:53:05,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:05,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:05,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 638 [2020-10-14 03:53:05,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:05,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:05,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:05,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:53:05,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:05,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 03:53:05,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:05,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:05,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:05,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:53:05,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:05,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:05,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 748 [2020-10-14 03:53:05,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:05,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:05,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:05,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:53:05,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:05,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 03:53:05,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:05,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:05,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:05,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 03:53:05,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:05,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:05,867 INFO L134 CoverageAnalysis]: Checked inductivity of 2108 backedges. 526 proven. 389 refuted. 0 times theorem prover too weak. 1193 trivial. 0 not checked. [2020-10-14 03:53:05,867 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1649835396] [2020-10-14 03:53:05,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:53:05,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:53:05,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425807451] [2020-10-14 03:53:05,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:53:05,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:53:05,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:53:05,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:53:05,869 INFO L87 Difference]: Start difference. First operand 21510 states and 23013 transitions. Second operand 7 states. [2020-10-14 03:53:11,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:53:11,127 INFO L93 Difference]: Finished difference Result 46421 states and 49797 transitions. [2020-10-14 03:53:11,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:53:11,128 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1006 [2020-10-14 03:53:11,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:53:11,172 INFO L225 Difference]: With dead ends: 46421 [2020-10-14 03:53:11,172 INFO L226 Difference]: Without dead ends: 24917 [2020-10-14 03:53:11,199 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:53:11,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24917 states. [2020-10-14 03:53:11,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24917 to 24231. [2020-10-14 03:53:11,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24231 states. [2020-10-14 03:53:11,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24231 states to 24231 states and 25989 transitions. [2020-10-14 03:53:11,669 INFO L78 Accepts]: Start accepts. Automaton has 24231 states and 25989 transitions. Word has length 1006 [2020-10-14 03:53:11,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:53:11,670 INFO L479 AbstractCegarLoop]: Abstraction has 24231 states and 25989 transitions. [2020-10-14 03:53:11,670 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:53:11,670 INFO L276 IsEmpty]: Start isEmpty. Operand 24231 states and 25989 transitions. [2020-10-14 03:53:11,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1060 [2020-10-14 03:53:11,695 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:53:11,696 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:53:11,696 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 03:53:11,696 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:53:11,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:53:11,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1628916970, now seen corresponding path program 1 times [2020-10-14 03:53:11,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:53:11,697 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [259496829] [2020-10-14 03:53:11,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:53:11,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:11,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:11,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:12,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:12,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:12,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:16,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:16,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:16,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1079 [2020-10-14 03:53:16,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:53:16,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-14 03:53:16,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:16,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:16,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:16,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 447 [2020-10-14 03:53:16,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 03:53:16,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:16,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:53:16,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:16,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:16,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:16,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:53:16,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:16,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:53:16,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:16,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:16,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:16,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:16,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:16,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:17,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:53:17,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:17,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:17,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:17,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:53:17,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:17,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 03:53:17,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:17,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:17,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:17,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:17,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:17,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:17,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:53:17,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:17,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:17,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:17,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:53:17,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:17,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 03:53:17,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:17,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:17,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:17,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:17,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:17,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:17,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 03:53:17,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:17,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:17,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:17,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:53:17,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:17,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 03:53:17,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:17,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:17,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:53:17,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:17,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 03:53:17,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:17,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2020-10-14 03:53:17,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:17,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:17,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:17,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:53:17,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:17,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 318 [2020-10-14 03:53:17,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:17,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:17,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:17,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:53:17,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 03:53:17,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:17,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 691 [2020-10-14 03:53:17,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:17,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:17,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:17,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:53:17,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:17,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 03:53:17,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:17,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:17,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:17,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:53:17,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:17,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:17,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 801 [2020-10-14 03:53:17,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:17,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:18,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:18,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:53:18,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:18,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 03:53:18,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:18,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:18,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:18,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 03:53:18,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:18,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:18,979 INFO L134 CoverageAnalysis]: Checked inductivity of 2073 backedges. 722 proven. 321 refuted. 0 times theorem prover too weak. 1030 trivial. 0 not checked. [2020-10-14 03:53:18,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [259496829] [2020-10-14 03:53:18,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:53:18,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:53:18,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780936026] [2020-10-14 03:53:18,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:53:18,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:53:18,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:53:18,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:53:18,982 INFO L87 Difference]: Start difference. First operand 24231 states and 25989 transitions. Second operand 7 states. [2020-10-14 03:53:22,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:53:22,138 INFO L93 Difference]: Finished difference Result 48466 states and 51981 transitions. [2020-10-14 03:53:22,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 03:53:22,140 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1059 [2020-10-14 03:53:22,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:53:22,192 INFO L225 Difference]: With dead ends: 48466 [2020-10-14 03:53:22,192 INFO L226 Difference]: Without dead ends: 24578 [2020-10-14 03:53:22,217 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 03:53:22,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24578 states. [2020-10-14 03:53:22,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24578 to 24568. [2020-10-14 03:53:22,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24568 states. [2020-10-14 03:53:22,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24568 states to 24568 states and 26329 transitions. [2020-10-14 03:53:22,551 INFO L78 Accepts]: Start accepts. Automaton has 24568 states and 26329 transitions. Word has length 1059 [2020-10-14 03:53:22,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:53:22,551 INFO L479 AbstractCegarLoop]: Abstraction has 24568 states and 26329 transitions. [2020-10-14 03:53:22,552 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:53:22,552 INFO L276 IsEmpty]: Start isEmpty. Operand 24568 states and 26329 transitions. [2020-10-14 03:53:22,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1158 [2020-10-14 03:53:22,577 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:53:22,578 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:53:22,578 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 03:53:22,578 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:53:22,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:53:22,579 INFO L82 PathProgramCache]: Analyzing trace with hash 375301298, now seen corresponding path program 1 times [2020-10-14 03:53:22,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:53:22,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [802695284] [2020-10-14 03:53:22,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:53:22,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:22,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:22,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:23,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:23,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:26,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:27,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:27,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1179 [2020-10-14 03:53:27,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:53:27,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5144 [2020-10-14 03:53:27,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:27,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:27,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:27,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 354 [2020-10-14 03:53:27,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 156 [2020-10-14 03:53:27,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:28,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:53:28,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:28,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:28,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:28,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:53:28,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:28,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:53:28,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:28,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:28,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:28,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:28,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:28,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:28,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:53:28,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:28,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:28,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:28,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:53:28,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:28,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 03:53:28,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:28,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:28,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:28,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:28,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:28,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:28,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:53:28,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:28,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:28,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:28,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-14 03:53:28,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:28,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 03:53:28,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:28,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:28,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:53:28,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:28,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 03:53:28,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:28,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2020-10-14 03:53:28,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:28,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:28,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:28,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 03:53:28,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:28,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-14 03:53:28,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:28,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:28,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:28,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:53:28,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-14 03:53:28,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:28,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-14 03:53:28,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:28,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:28,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:28,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:53:28,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:28,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 03:53:28,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:28,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:28,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:28,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 03:53:28,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:28,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:28,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 647 [2020-10-14 03:53:28,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:28,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:28,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:28,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:53:28,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:28,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 03:53:28,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:28,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:28,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:28,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 03:53:28,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:28,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:28,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 789 [2020-10-14 03:53:28,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:28,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:28,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:28,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:53:28,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:28,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 03:53:28,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:28,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:28,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:28,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:53:28,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:28,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:28,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 899 [2020-10-14 03:53:28,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:28,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:29,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:29,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:53:29,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:29,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-14 03:53:29,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:29,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:29,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:29,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 03:53:29,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:29,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:30,614 INFO L134 CoverageAnalysis]: Checked inductivity of 2937 backedges. 585 proven. 539 refuted. 0 times theorem prover too weak. 1813 trivial. 0 not checked. [2020-10-14 03:53:30,614 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [802695284] [2020-10-14 03:53:30,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:53:30,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:53:30,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005504248] [2020-10-14 03:53:30,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:53:30,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:53:30,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:53:30,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:53:30,616 INFO L87 Difference]: Start difference. First operand 24568 states and 26329 transitions. Second operand 7 states. [2020-10-14 03:53:33,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:53:33,939 INFO L93 Difference]: Finished difference Result 50843 states and 54492 transitions. [2020-10-14 03:53:33,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:53:33,940 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1157 [2020-10-14 03:53:33,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:53:33,977 INFO L225 Difference]: With dead ends: 50843 [2020-10-14 03:53:33,977 INFO L226 Difference]: Without dead ends: 26618 [2020-10-14 03:53:33,998 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:53:34,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26618 states. [2020-10-14 03:53:34,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26618 to 24917. [2020-10-14 03:53:34,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24917 states. [2020-10-14 03:53:34,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24917 states to 24917 states and 26693 transitions. [2020-10-14 03:53:34,338 INFO L78 Accepts]: Start accepts. Automaton has 24917 states and 26693 transitions. Word has length 1157 [2020-10-14 03:53:34,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:53:34,338 INFO L479 AbstractCegarLoop]: Abstraction has 24917 states and 26693 transitions. [2020-10-14 03:53:34,339 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:53:34,339 INFO L276 IsEmpty]: Start isEmpty. Operand 24917 states and 26693 transitions. [2020-10-14 03:53:34,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1173 [2020-10-14 03:53:34,366 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:53:34,367 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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] [2020-10-14 03:53:34,367 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 03:53:34,367 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:53:34,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:53:34,368 INFO L82 PathProgramCache]: Analyzing trace with hash -384229953, now seen corresponding path program 1 times [2020-10-14 03:53:34,368 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:53:34,368 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [364933775] [2020-10-14 03:53:34,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:53:34,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:34,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:34,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:39,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:39,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1192 [2020-10-14 03:53:39,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:53:39,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-14 03:53:39,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:39,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:39,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 03:53:39,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 03:53:39,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-14 03:53:39,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:39,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:53:39,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:39,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:39,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:39,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:53:39,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:39,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 03:53:39,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:39,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:39,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:53:39,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:39,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:53:39,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:39,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:53:39,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:39,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:39,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:39,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:53:39,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:39,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 296 [2020-10-14 03:53:39,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:39,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:39,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:39,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:53:39,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 03:53:39,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:40,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:53:40,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:40,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:40,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:40,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:53:40,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:40,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-14 03:53:40,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:40,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:40,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:40,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 274 [2020-10-14 03:53:40,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:40,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:40,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:53:40,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:40,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:40,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:40,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:53:40,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:40,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 03:53:40,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:40,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:40,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:40,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 03:53:40,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:40,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:40,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:53:40,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:40,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:40,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:40,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:53:40,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:40,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 03:53:40,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:40,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:40,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:40,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-14 03:53:40,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:40,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:40,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 804 [2020-10-14 03:53:40,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:40,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:40,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:40,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:53:40,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:40,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 03:53:40,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:40,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:40,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:40,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:53:40,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:40,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:40,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 914 [2020-10-14 03:53:40,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:40,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:40,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:40,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:53:40,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:40,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-14 03:53:40,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:40,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:40,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:40,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 03:53:40,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:40,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:42,254 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 264 proven. 820 refuted. 0 times theorem prover too weak. 1278 trivial. 0 not checked. [2020-10-14 03:53:42,254 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [364933775] [2020-10-14 03:53:42,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:53:42,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:53:42,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8836446] [2020-10-14 03:53:42,256 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:53:42,256 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:53:42,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:53:42,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:53:42,257 INFO L87 Difference]: Start difference. First operand 24917 states and 26693 transitions. Second operand 7 states. [2020-10-14 03:53:45,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:53:45,160 INFO L93 Difference]: Finished difference Result 49840 states and 53409 transitions. [2020-10-14 03:53:45,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:53:45,161 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1172 [2020-10-14 03:53:45,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:53:45,194 INFO L225 Difference]: With dead ends: 49840 [2020-10-14 03:53:45,195 INFO L226 Difference]: Without dead ends: 25266 [2020-10-14 03:53:45,220 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:53:45,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25266 states. [2020-10-14 03:53:45,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25266 to 25256. [2020-10-14 03:53:45,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25256 states. [2020-10-14 03:53:45,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25256 states to 25256 states and 27049 transitions. [2020-10-14 03:53:45,548 INFO L78 Accepts]: Start accepts. Automaton has 25256 states and 27049 transitions. Word has length 1172 [2020-10-14 03:53:45,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:53:45,549 INFO L479 AbstractCegarLoop]: Abstraction has 25256 states and 27049 transitions. [2020-10-14 03:53:45,549 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:53:45,549 INFO L276 IsEmpty]: Start isEmpty. Operand 25256 states and 27049 transitions. [2020-10-14 03:53:45,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1218 [2020-10-14 03:53:45,577 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:53:45,578 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:53:45,578 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 03:53:45,579 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:53:45,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:53:45,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1583742098, now seen corresponding path program 1 times [2020-10-14 03:53:45,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:53:45,580 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [740495418] [2020-10-14 03:53:45,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:53:45,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:45,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:45,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:46,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:50,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:50,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:50,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1239 [2020-10-14 03:53:50,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:53:50,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 03:53:50,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:50,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:50,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:50,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-14 03:53:50,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-14 03:53:50,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:50,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:53:50,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:50,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:50,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:50,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:53:50,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:50,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:53:50,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:50,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:50,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:50,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:50,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:50,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:50,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:53:50,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:50,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:50,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:50,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:53:50,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:50,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 03:53:50,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:50,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:50,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:53:50,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:50,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-14 03:53:50,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:51,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:53:51,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:51,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:51,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:51,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 03:53:51,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:51,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 03:53:51,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:51,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:51,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:51,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:53:51,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-14 03:53:51,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:51,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2020-10-14 03:53:51,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:51,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:51,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:51,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 03:53:51,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:51,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 03:53:51,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:51,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:51,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:51,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-10-14 03:53:51,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:51,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:51,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 563 [2020-10-14 03:53:51,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:51,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:51,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:51,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:53:51,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:51,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 03:53:51,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:51,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:51,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:51,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 03:53:51,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:51,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:51,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 707 [2020-10-14 03:53:51,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:51,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:51,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:51,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:53:51,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:51,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 03:53:51,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:51,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:51,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:51,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 03:53:51,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:51,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:51,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 849 [2020-10-14 03:53:51,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:51,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:51,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:51,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:53:51,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:51,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 03:53:51,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:51,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:51,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:51,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:53:51,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:51,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:51,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 959 [2020-10-14 03:53:51,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:51,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:51,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:51,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:53:51,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:51,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 03:53:51,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:51,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:51,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:51,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 03:53:51,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:51,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:52,142 INFO L134 CoverageAnalysis]: Checked inductivity of 3254 backedges. 488 proven. 699 refuted. 0 times theorem prover too weak. 2067 trivial. 0 not checked. [2020-10-14 03:53:52,142 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [740495418] [2020-10-14 03:53:52,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:53:52,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:53:52,143 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833878706] [2020-10-14 03:53:52,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:53:52,143 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:53:52,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:53:52,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:53:52,144 INFO L87 Difference]: Start difference. First operand 25256 states and 27049 transitions. Second operand 7 states. [2020-10-14 03:53:55,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:53:55,481 INFO L93 Difference]: Finished difference Result 52206 states and 56127 transitions. [2020-10-14 03:53:55,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:53:55,483 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1217 [2020-10-14 03:53:55,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:53:55,523 INFO L225 Difference]: With dead ends: 52206 [2020-10-14 03:53:55,523 INFO L226 Difference]: Without dead ends: 27632 [2020-10-14 03:53:55,549 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:53:55,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27632 states. [2020-10-14 03:53:55,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27632 to 26946. [2020-10-14 03:53:55,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26946 states. [2020-10-14 03:53:55,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26946 states to 26946 states and 28837 transitions. [2020-10-14 03:53:55,836 INFO L78 Accepts]: Start accepts. Automaton has 26946 states and 28837 transitions. Word has length 1217 [2020-10-14 03:53:55,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:53:55,837 INFO L479 AbstractCegarLoop]: Abstraction has 26946 states and 28837 transitions. [2020-10-14 03:53:55,837 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:53:55,837 INFO L276 IsEmpty]: Start isEmpty. Operand 26946 states and 28837 transitions. [2020-10-14 03:53:55,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1677 [2020-10-14 03:53:55,878 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:53:55,879 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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] [2020-10-14 03:53:55,880 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 03:53:55,880 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:53:55,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:53:55,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1223644257, now seen corresponding path program 1 times [2020-10-14 03:53:55,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:53:55,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [183291517] [2020-10-14 03:53:55,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:53:56,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:56,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:56,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:56,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:57,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:01,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:01,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1704 [2020-10-14 03:54:01,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:54:01,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-14 03:54:01,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:01,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:01,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:54:01,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 359 [2020-10-14 03:54:01,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 222 [2020-10-14 03:54:01,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:54:01,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:54:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:01,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:01,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:01,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:54:01,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:01,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:54:01,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:01,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:01,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:01,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:01,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:01,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:01,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:54:01,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:01,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:01,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:01,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 03:54:01,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:01,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 03:54:01,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:01,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:01,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:01,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:01,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:01,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:01,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 03:54:01,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:01,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:01,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:01,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 03:54:01,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:01,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 03:54:01,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:01,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:01,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:54:01,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:01,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 03:54:01,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:01,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-14 03:54:01,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:01,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:01,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:01,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-14 03:54:01,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:01,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 297 [2020-10-14 03:54:01,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:01,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:01,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:54:01,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:54:01,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 220 [2020-10-14 03:54:01,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:01,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 574 [2020-10-14 03:54:01,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:01,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:01,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:01,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 03:54:01,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:01,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 03:54:01,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:01,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:01,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:01,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-10-14 03:54:01,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:01,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:02,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 727 [2020-10-14 03:54:02,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:02,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:02,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:02,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:54:02,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:02,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 03:54:02,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:02,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:02,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:02,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 03:54:02,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:02,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:02,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 871 [2020-10-14 03:54:02,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:02,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:02,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:02,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:54:02,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:02,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 03:54:02,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:02,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:02,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:02,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 03:54:02,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:02,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:54:02,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1013 [2020-10-14 03:54:02,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:02,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:02,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:02,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:54:02,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:02,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 03:54:02,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:02,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:02,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:02,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:54:02,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:02,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:54:02,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1123 [2020-10-14 03:54:02,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:02,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:02,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:02,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:54:02,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:02,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-14 03:54:02,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:02,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:02,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:02,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 03:54:02,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:02,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:54:02,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1338 [2020-10-14 03:54:02,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:02,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:02,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:02,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 03:54:02,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:02,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-14 03:54:02,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:02,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:02,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:02,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 03:54:02,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:02,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:54:03,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:54:03,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:03,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:03,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:03,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 03:54:03,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:03,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 03:54:03,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:03,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:03,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:03,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:03,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:03,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 03:54:04,912 INFO L134 CoverageAnalysis]: Checked inductivity of 5480 backedges. 762 proven. 967 refuted. 0 times theorem prover too weak. 3751 trivial. 0 not checked. [2020-10-14 03:54:04,913 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [183291517] [2020-10-14 03:54:04,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:54:04,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:54:04,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998597446] [2020-10-14 03:54:04,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:54:04,915 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:54:04,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:54:04,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:54:04,915 INFO L87 Difference]: Start difference. First operand 26946 states and 28837 transitions. Second operand 7 states.