/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_label37.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 03:46:56,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 03:46:56,758 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 03:46:56,787 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 03:46:56,787 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 03:46:56,788 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 03:46:56,789 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 03:46:56,796 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 03:46:56,801 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 03:46:56,802 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 03:46:56,803 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 03:46:56,806 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 03:46:56,807 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 03:46:56,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 03:46:56,810 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 03:46:56,811 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 03:46:56,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 03:46:56,815 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 03:46:56,818 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 03:46:56,820 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 03:46:56,823 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 03:46:56,824 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 03:46:56,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 03:46:56,826 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 03:46:56,831 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 03:46:56,831 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 03:46:56,831 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 03:46:56,834 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 03:46:56,835 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 03:46:56,835 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 03:46:56,836 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 03:46:56,836 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 03:46:56,844 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 03:46:56,845 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 03:46:56,848 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 03:46:56,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 03:46:56,849 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 03:46:56,849 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 03:46:56,850 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 03:46:56,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 03:46:56,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 03:46:56,852 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 03:46:56,877 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 03:46:56,877 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 03:46:56,878 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 03:46:56,879 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 03:46:56,879 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 03:46:56,879 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 03:46:56,879 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 03:46:56,879 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 03:46:56,880 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 03:46:56,880 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 03:46:56,880 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 03:46:56,880 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 03:46:56,880 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 03:46:56,881 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 03:46:56,881 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 03:46:56,881 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 03:46:56,881 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 03:46:56,882 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 03:46:56,882 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 03:46:56,882 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 03:46:56,882 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 03:46:56,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 03:46:56,883 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 03:46:56,883 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 03:46:56,883 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 03:46:56,883 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 03:46:56,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 03:46:56,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 03:46:56,884 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 03:46:56,884 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 03:46:57,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 03:46:57,173 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 03:46:57,177 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 03:46:57,178 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 03:46:57,178 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 03:46:57,179 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label37.c [2020-10-14 03:46:57,235 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/36ec3877f/fb590769ce624b5ba8a77b4218dd71fa/FLAGfdc05c964 [2020-10-14 03:46:57,879 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 03:46:57,880 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label37.c [2020-10-14 03:46:57,903 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/36ec3877f/fb590769ce624b5ba8a77b4218dd71fa/FLAGfdc05c964 [2020-10-14 03:46:58,077 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/36ec3877f/fb590769ce624b5ba8a77b4218dd71fa [2020-10-14 03:46:58,087 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 03:46:58,089 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 03:46:58,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 03:46:58,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 03:46:58,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 03:46:58,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:46:58" (1/1) ... [2020-10-14 03:46:58,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72e3fcd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:58, skipping insertion in model container [2020-10-14 03:46:58,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:46:58" (1/1) ... [2020-10-14 03:46:58,105 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 03:46:58,187 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 03:46:59,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:46:59,034 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 03:46:59,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:46:59,258 INFO L208 MainTranslator]: Completed translation [2020-10-14 03:46:59,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:59 WrapperNode [2020-10-14 03:46:59,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 03:46:59,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 03:46:59,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 03:46:59,260 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 03:46:59,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:59" (1/1) ... [2020-10-14 03:46:59,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:59" (1/1) ... [2020-10-14 03:46:59,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:59" (1/1) ... [2020-10-14 03:46:59,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:59" (1/1) ... [2020-10-14 03:46:59,403 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:59" (1/1) ... [2020-10-14 03:46:59,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:59" (1/1) ... [2020-10-14 03:46:59,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:59" (1/1) ... [2020-10-14 03:46:59,446 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 03:46:59,446 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 03:46:59,447 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 03:46:59,447 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 03:46:59,448 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:59" (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 03:46:59,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 03:46:59,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 03:46:59,519 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 03:46:59,519 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 03:46:59,519 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 03:46:59,519 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 03:46:59,519 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 03:46:59,519 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 03:46:59,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 03:46:59,520 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 03:46:59,520 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 03:46:59,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 03:46:59,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 03:47:03,911 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 03:47:03,911 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 03:47:03,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:47:03 BoogieIcfgContainer [2020-10-14 03:47:03,918 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 03:47:03,919 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 03:47:03,920 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 03:47:03,923 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 03:47:03,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:46:58" (1/3) ... [2020-10-14 03:47:03,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bb7e493 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:47:03, skipping insertion in model container [2020-10-14 03:47:03,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:46:59" (2/3) ... [2020-10-14 03:47:03,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bb7e493 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:47:03, skipping insertion in model container [2020-10-14 03:47:03,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:47:03" (3/3) ... [2020-10-14 03:47:03,926 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label37.c [2020-10-14 03:47:03,936 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 03:47:03,945 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 03:47:03,958 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 03:47:03,984 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 03:47:03,984 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 03:47:03,985 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 03:47:03,985 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 03:47:03,985 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 03:47:03,985 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 03:47:03,985 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 03:47:03,985 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 03:47:04,012 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 03:47:04,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-14 03:47:04,019 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:04,020 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] [2020-10-14 03:47:04,020 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:04,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:04,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1021054035, now seen corresponding path program 1 times [2020-10-14 03:47:04,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:04,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [747236928] [2020-10-14 03:47:04,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:04,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:04,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:04,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:04,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 03:47:04,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:04,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 311 [2020-10-14 03:47:04,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:04,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:04,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 03:47:04,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 03:47:04,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-14 03:47:04,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 03:47:04,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:04,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:04,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:04,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:04,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:04,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:04,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 03:47:04,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:04,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:04,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:04,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:04,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:47:04,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:04,586 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 03:47:04,587 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [747236928] [2020-10-14 03:47:04,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 03:47:04,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 03:47:04,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172436414] [2020-10-14 03:47:04,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 03:47:04,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:04,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 03:47:04,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 03:47:04,611 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-14 03:47:08,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:08,277 INFO L93 Difference]: Finished difference Result 1169 states and 2164 transitions. [2020-10-14 03:47:08,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:47:08,279 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-10-14 03:47:08,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:08,309 INFO L225 Difference]: With dead ends: 1169 [2020-10-14 03:47:08,309 INFO L226 Difference]: Without dead ends: 696 [2020-10-14 03:47:08,318 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:47:08,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-14 03:47:08,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 692. [2020-10-14 03:47:08,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 692 states. [2020-10-14 03:47:08,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1014 transitions. [2020-10-14 03:47:08,424 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1014 transitions. Word has length 26 [2020-10-14 03:47:08,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:08,425 INFO L479 AbstractCegarLoop]: Abstraction has 692 states and 1014 transitions. [2020-10-14 03:47:08,425 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 03:47:08,425 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1014 transitions. [2020-10-14 03:47:08,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-14 03:47:08,434 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:08,435 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 03:47:08,435 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 03:47:08,435 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:08,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:08,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1689668224, now seen corresponding path program 1 times [2020-10-14 03:47:08,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:08,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2102703447] [2020-10-14 03:47:08,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:08,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:08,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:08,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:09,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:09,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 03:47:09,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:47:09,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 843 [2020-10-14 03:47:09,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:09,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:09,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:09,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 03:47:09,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 03:47:09,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:09,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:09,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:09,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:09,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:09,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:09,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:09,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 03:47:09,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:09,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:09,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:09,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:09,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:09,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:09,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:09,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:09,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:09,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:09,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 03:47:09,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:09,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 03:47:09,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:09,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:09,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:09,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:09,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 03:47:09,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-14 03:47:09,629 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:47:09,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2102703447] [2020-10-14 03:47:09,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:09,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 03:47:09,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337666226] [2020-10-14 03:47:09,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:47:09,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:09,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:47:09,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:47:09,633 INFO L87 Difference]: Start difference. First operand 692 states and 1014 transitions. Second operand 5 states. [2020-10-14 03:47:12,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:12,991 INFO L93 Difference]: Finished difference Result 2063 states and 3056 transitions. [2020-10-14 03:47:12,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:47:12,992 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 102 [2020-10-14 03:47:12,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:13,001 INFO L225 Difference]: With dead ends: 2063 [2020-10-14 03:47:13,001 INFO L226 Difference]: Without dead ends: 1377 [2020-10-14 03:47:13,004 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:47:13,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1377 states. [2020-10-14 03:47:13,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1377 to 1373. [2020-10-14 03:47:13,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1373 states. [2020-10-14 03:47:13,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1373 states to 1373 states and 1805 transitions. [2020-10-14 03:47:13,093 INFO L78 Accepts]: Start accepts. Automaton has 1373 states and 1805 transitions. Word has length 102 [2020-10-14 03:47:13,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:13,094 INFO L479 AbstractCegarLoop]: Abstraction has 1373 states and 1805 transitions. [2020-10-14 03:47:13,094 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:47:13,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1373 states and 1805 transitions. [2020-10-14 03:47:13,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-10-14 03:47:13,098 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:13,098 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 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 03:47:13,099 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 03:47:13,099 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:13,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:13,099 INFO L82 PathProgramCache]: Analyzing trace with hash 446995312, now seen corresponding path program 1 times [2020-10-14 03:47:13,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:13,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1087585555] [2020-10-14 03:47:13,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:13,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:13,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:13,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:13,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:14,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:14,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:15,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:16,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:16,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-14 03:47:16,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:47:16,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3435 [2020-10-14 03:47:16,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:16,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:16,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:16,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-14 03:47:16,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 03:47:16,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:16,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:16,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:16,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:16,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:16,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:16,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:16,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:47:16,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:16,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:16,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:16,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:16,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:16,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:16,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:16,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:16,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:16,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:16,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 03:47:16,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:16,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 03:47:16,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:16,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:16,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:16,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:16,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 03:47:16,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:16,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 03:47:16,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:16,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:16,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:16,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:47:16,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:16,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-14 03:47:16,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:16,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:16,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:16,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:16,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 03:47:16,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:17,085 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 107 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:47:17,086 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1087585555] [2020-10-14 03:47:17,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:17,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:17,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992091467] [2020-10-14 03:47:17,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:17,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:17,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:17,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:17,092 INFO L87 Difference]: Start difference. First operand 1373 states and 1805 transitions. Second operand 7 states. [2020-10-14 03:47:21,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:21,262 INFO L93 Difference]: Finished difference Result 3457 states and 4726 transitions. [2020-10-14 03:47:21,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:47:21,263 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 189 [2020-10-14 03:47:21,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:21,281 INFO L225 Difference]: With dead ends: 3457 [2020-10-14 03:47:21,281 INFO L226 Difference]: Without dead ends: 2090 [2020-10-14 03:47:21,285 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:47:21,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2090 states. [2020-10-14 03:47:21,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2090 to 2068. [2020-10-14 03:47:21,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2068 states. [2020-10-14 03:47:21,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2068 states to 2068 states and 2669 transitions. [2020-10-14 03:47:21,354 INFO L78 Accepts]: Start accepts. Automaton has 2068 states and 2669 transitions. Word has length 189 [2020-10-14 03:47:21,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:21,358 INFO L479 AbstractCegarLoop]: Abstraction has 2068 states and 2669 transitions. [2020-10-14 03:47:21,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:21,358 INFO L276 IsEmpty]: Start isEmpty. Operand 2068 states and 2669 transitions. [2020-10-14 03:47:21,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-10-14 03:47:21,369 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:21,370 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:47:21,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 03:47:21,371 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:21,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:21,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1015850603, now seen corresponding path program 1 times [2020-10-14 03:47:21,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:21,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1898064427] [2020-10-14 03:47:21,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:21,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:21,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:21,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:21,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:21,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:23,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:23,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:23,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 264 [2020-10-14 03:47:23,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:47:23,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2287 [2020-10-14 03:47:23,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:23,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:23,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:23,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-14 03:47:23,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-14 03:47:23,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:23,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:23,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:23,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:23,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:23,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:23,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:23,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:47:23,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:23,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:23,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:23,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:23,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:23,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:23,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:23,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:23,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:23,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 03:47:23,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:23,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 03:47:23,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:23,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:23,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:23,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:23,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 03:47:23,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:23,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 03:47:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:23,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:24,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:24,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:47:24,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:24,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-14 03:47:24,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:24,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:24,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:24,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:24,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-14 03:47:24,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:24,275 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 126 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:47:24,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1898064427] [2020-10-14 03:47:24,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:24,276 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:24,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601797087] [2020-10-14 03:47:24,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:24,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:24,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:24,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:24,279 INFO L87 Difference]: Start difference. First operand 2068 states and 2669 transitions. Second operand 7 states. [2020-10-14 03:47:28,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:28,669 INFO L93 Difference]: Finished difference Result 5543 states and 7343 transitions. [2020-10-14 03:47:28,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:47:28,672 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 252 [2020-10-14 03:47:28,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:28,688 INFO L225 Difference]: With dead ends: 5543 [2020-10-14 03:47:28,688 INFO L226 Difference]: Without dead ends: 2782 [2020-10-14 03:47:28,695 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:47:28,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2782 states. [2020-10-14 03:47:28,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2782 to 2770. [2020-10-14 03:47:28,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2770 states. [2020-10-14 03:47:28,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2770 states to 2770 states and 3045 transitions. [2020-10-14 03:47:28,842 INFO L78 Accepts]: Start accepts. Automaton has 2770 states and 3045 transitions. Word has length 252 [2020-10-14 03:47:28,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:28,842 INFO L479 AbstractCegarLoop]: Abstraction has 2770 states and 3045 transitions. [2020-10-14 03:47:28,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:28,843 INFO L276 IsEmpty]: Start isEmpty. Operand 2770 states and 3045 transitions. [2020-10-14 03:47:28,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-10-14 03:47:28,847 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:28,847 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:47:28,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 03:47:28,848 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:28,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:28,848 INFO L82 PathProgramCache]: Analyzing trace with hash 45543526, now seen corresponding path program 1 times [2020-10-14 03:47:28,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:28,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1136883895] [2020-10-14 03:47:28,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:28,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:28,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:28,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:29,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:33,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:33,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 267 [2020-10-14 03:47:33,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:47:33,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4740 [2020-10-14 03:47:33,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:33,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:33,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:33,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 03:47:33,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 03:47:33,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 03:47:33,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:33,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:33,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:33,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:33,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:33,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:33,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:47:33,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:33,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:33,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:33,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:33,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:33,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:33,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:33,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:33,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:33,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:33,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 03:47:33,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:33,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 03:47:33,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:33,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:33,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:33,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:33,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 03:47:33,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:33,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 03:47:33,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:33,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:34,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:34,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:47:34,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:34,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-10-14 03:47:34,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:34,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:34,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:34,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:34,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 03:47:34,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:34,345 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 135 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:47:34,346 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1136883895] [2020-10-14 03:47:34,346 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:34,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:34,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702272807] [2020-10-14 03:47:34,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:34,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:34,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:34,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:34,350 INFO L87 Difference]: Start difference. First operand 2770 states and 3045 transitions. Second operand 7 states. [2020-10-14 03:47:37,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:37,581 INFO L93 Difference]: Finished difference Result 6931 states and 7737 transitions. [2020-10-14 03:47:37,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:47:37,582 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 255 [2020-10-14 03:47:37,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:37,601 INFO L225 Difference]: With dead ends: 6931 [2020-10-14 03:47:37,601 INFO L226 Difference]: Without dead ends: 4167 [2020-10-14 03:47:37,609 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:47:37,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4167 states. [2020-10-14 03:47:37,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4167 to 4143. [2020-10-14 03:47:37,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4143 states. [2020-10-14 03:47:37,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4143 states to 4143 states and 4493 transitions. [2020-10-14 03:47:37,696 INFO L78 Accepts]: Start accepts. Automaton has 4143 states and 4493 transitions. Word has length 255 [2020-10-14 03:47:37,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:37,696 INFO L479 AbstractCegarLoop]: Abstraction has 4143 states and 4493 transitions. [2020-10-14 03:47:37,696 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:37,697 INFO L276 IsEmpty]: Start isEmpty. Operand 4143 states and 4493 transitions. [2020-10-14 03:47:37,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2020-10-14 03:47:37,703 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:37,703 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:47:37,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 03:47:37,704 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:37,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:37,704 INFO L82 PathProgramCache]: Analyzing trace with hash -597938731, now seen corresponding path program 1 times [2020-10-14 03:47:37,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:37,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1490383317] [2020-10-14 03:47:37,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:37,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:37,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:38,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:39,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:41,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:42,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:42,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 356 [2020-10-14 03:47:42,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:47:42,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 03:47:42,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:42,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:42,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:42,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-14 03:47:42,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-14 03:47:42,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:42,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:42,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:42,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:42,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:42,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:42,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:42,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 03:47:42,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:42,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:42,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:42,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:42,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:42,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:47:42,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:42,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:42,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:43,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:43,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:47:43,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:43,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-10-14 03:47:43,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:43,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:43,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:43,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:43,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-14 03:47:43,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:43,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:47:43,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:43,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:43,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:43,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:47:43,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:43,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 03:47:43,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:43,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:43,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:43,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:43,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 03:47:43,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:43,680 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 104 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:47:43,680 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1490383317] [2020-10-14 03:47:43,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:43,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:43,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881933568] [2020-10-14 03:47:43,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:43,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:43,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:43,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:43,685 INFO L87 Difference]: Start difference. First operand 4143 states and 4493 transitions. Second operand 7 states. [2020-10-14 03:47:46,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:46,709 INFO L93 Difference]: Finished difference Result 12057 states and 13234 transitions. [2020-10-14 03:47:46,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:47:46,718 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 344 [2020-10-14 03:47:46,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:46,749 INFO L225 Difference]: With dead ends: 12057 [2020-10-14 03:47:46,750 INFO L226 Difference]: Without dead ends: 7920 [2020-10-14 03:47:46,761 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 03:47:46,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7920 states. [2020-10-14 03:47:46,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7920 to 7222. [2020-10-14 03:47:46,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7222 states. [2020-10-14 03:47:46,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7222 states to 7222 states and 7889 transitions. [2020-10-14 03:47:46,940 INFO L78 Accepts]: Start accepts. Automaton has 7222 states and 7889 transitions. Word has length 344 [2020-10-14 03:47:46,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:46,942 INFO L479 AbstractCegarLoop]: Abstraction has 7222 states and 7889 transitions. [2020-10-14 03:47:46,942 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:46,942 INFO L276 IsEmpty]: Start isEmpty. Operand 7222 states and 7889 transitions. [2020-10-14 03:47:46,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2020-10-14 03:47:46,949 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:46,949 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:47:46,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 03:47:46,950 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:46,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:46,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1108470968, now seen corresponding path program 1 times [2020-10-14 03:47:46,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:46,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [982679586] [2020-10-14 03:47:46,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:47,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:47,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:47,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:47,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:50,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:51,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:52,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:52,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 357 [2020-10-14 03:47:52,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:47:52,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-14 03:47:52,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:52,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:52,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:52,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-14 03:47:52,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 03:47:52,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:52,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:52,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:52,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:52,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:52,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:52,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:52,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:47:52,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:52,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:52,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:52,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:52,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:52,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:52,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:52,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:52,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:52,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:52,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:47:52,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:52,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-14 03:47:52,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:52,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:52,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:52,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:52,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-14 03:47:52,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:52,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:47:52,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:52,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:52,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:52,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:47:52,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:52,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 03:47:52,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:52,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:52,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:52,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:52,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 03:47:52,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:52,720 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 105 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:47:52,720 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [982679586] [2020-10-14 03:47:52,720 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:52,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:52,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603575610] [2020-10-14 03:47:52,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:52,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:52,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:52,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:52,723 INFO L87 Difference]: Start difference. First operand 7222 states and 7889 transitions. Second operand 7 states. [2020-10-14 03:47:57,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:57,220 INFO L93 Difference]: Finished difference Result 19359 states and 21962 transitions. [2020-10-14 03:47:57,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:47:57,221 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 345 [2020-10-14 03:47:57,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:57,275 INFO L225 Difference]: With dead ends: 19359 [2020-10-14 03:47:57,276 INFO L226 Difference]: Without dead ends: 12143 [2020-10-14 03:47:57,302 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:47:57,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12143 states. [2020-10-14 03:47:57,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12143 to 11668. [2020-10-14 03:47:57,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11668 states. [2020-10-14 03:47:57,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11668 states to 11668 states and 12779 transitions. [2020-10-14 03:47:57,615 INFO L78 Accepts]: Start accepts. Automaton has 11668 states and 12779 transitions. Word has length 345 [2020-10-14 03:47:57,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:57,615 INFO L479 AbstractCegarLoop]: Abstraction has 11668 states and 12779 transitions. [2020-10-14 03:47:57,616 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:57,616 INFO L276 IsEmpty]: Start isEmpty. Operand 11668 states and 12779 transitions. [2020-10-14 03:47:57,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2020-10-14 03:47:57,626 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:57,627 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:47:57,627 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 03:47:57,628 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:57,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:57,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1908605979, now seen corresponding path program 1 times [2020-10-14 03:47:57,628 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:57,629 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2077568571] [2020-10-14 03:47:57,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:57,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:57,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:58,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:58,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:00,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:00,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 465 [2020-10-14 03:48:00,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:48:00,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2804 [2020-10-14 03:48:00,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:00,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:00,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:00,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 274 [2020-10-14 03:48:00,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-14 03:48:00,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:00,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:00,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:00,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:00,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:00,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:00,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:00,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:48:00,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:00,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:00,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:00,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:00,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:00,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:48:00,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:00,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:00,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:00,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:00,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 03:48:00,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:00,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 03:48:00,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:00,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:00,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:00,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:00,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:00,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:00,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 03:48:00,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:00,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:00,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:00,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 03:48:00,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:00,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 03:48:00,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:00,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:00,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:00,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:00,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-14 03:48:00,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:00,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2020-10-14 03:48:00,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:00,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:00,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:00,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 03:48:00,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:00,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-14 03:48:00,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:00,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:00,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:00,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:00,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-14 03:48:00,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:01,157 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 318 proven. 2 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2020-10-14 03:48:01,158 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2077568571] [2020-10-14 03:48:01,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:01,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:01,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785534313] [2020-10-14 03:48:01,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:01,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:01,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:01,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:01,160 INFO L87 Difference]: Start difference. First operand 11668 states and 12779 transitions. Second operand 7 states. [2020-10-14 03:48:04,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:04,426 INFO L93 Difference]: Finished difference Result 25201 states and 28637 transitions. [2020-10-14 03:48:04,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:48:04,427 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 451 [2020-10-14 03:48:04,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:04,489 INFO L225 Difference]: With dead ends: 25201 [2020-10-14 03:48:04,489 INFO L226 Difference]: Without dead ends: 14227 [2020-10-14 03:48:04,524 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 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 03:48:04,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14227 states. [2020-10-14 03:48:04,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14227 to 13032. [2020-10-14 03:48:04,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13032 states. [2020-10-14 03:48:04,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13032 states to 13032 states and 14247 transitions. [2020-10-14 03:48:04,801 INFO L78 Accepts]: Start accepts. Automaton has 13032 states and 14247 transitions. Word has length 451 [2020-10-14 03:48:04,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:04,801 INFO L479 AbstractCegarLoop]: Abstraction has 13032 states and 14247 transitions. [2020-10-14 03:48:04,802 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:04,802 INFO L276 IsEmpty]: Start isEmpty. Operand 13032 states and 14247 transitions. [2020-10-14 03:48:04,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2020-10-14 03:48:04,813 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:04,814 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:48:04,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 03:48:04,815 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:04,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:04,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1898425485, now seen corresponding path program 1 times [2020-10-14 03:48:04,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:04,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1554344444] [2020-10-14 03:48:04,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:04,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:04,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:05,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:05,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:08,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:08,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:09,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:09,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 488 [2020-10-14 03:48:09,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:48:09,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-14 03:48:09,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:09,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:09,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:09,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-14 03:48:09,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 204 [2020-10-14 03:48:09,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:10,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:10,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:10,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:10,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:10,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:10,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:10,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:48:10,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:10,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:10,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:10,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:10,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:10,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:10,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:10,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:10,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:10,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:10,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:48:10,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:10,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-14 03:48:10,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:10,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:10,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:10,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:10,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-14 03:48:10,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:10,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:48:10,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:10,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:10,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:10,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-14 03:48:10,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:10,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-14 03:48:10,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:10,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:10,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:10,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:10,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 202 [2020-10-14 03:48:10,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:10,848 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 236 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:48:10,849 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1554344444] [2020-10-14 03:48:10,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:10,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:10,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462584129] [2020-10-14 03:48:10,850 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:10,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:10,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:10,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:10,851 INFO L87 Difference]: Start difference. First operand 13032 states and 14247 transitions. Second operand 7 states. [2020-10-14 03:48:13,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:13,943 INFO L93 Difference]: Finished difference Result 25709 states and 28146 transitions. [2020-10-14 03:48:13,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:48:13,944 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 476 [2020-10-14 03:48:13,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:13,977 INFO L225 Difference]: With dead ends: 25709 [2020-10-14 03:48:13,977 INFO L226 Difference]: Without dead ends: 13373 [2020-10-14 03:48:14,000 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 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 03:48:14,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13373 states. [2020-10-14 03:48:14,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13373 to 13032. [2020-10-14 03:48:14,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13032 states. [2020-10-14 03:48:14,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13032 states to 13032 states and 14239 transitions. [2020-10-14 03:48:14,297 INFO L78 Accepts]: Start accepts. Automaton has 13032 states and 14239 transitions. Word has length 476 [2020-10-14 03:48:14,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:14,298 INFO L479 AbstractCegarLoop]: Abstraction has 13032 states and 14239 transitions. [2020-10-14 03:48:14,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:14,299 INFO L276 IsEmpty]: Start isEmpty. Operand 13032 states and 14239 transitions. [2020-10-14 03:48:14,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2020-10-14 03:48:14,311 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:14,311 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:48:14,312 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 03:48:14,312 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:14,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:14,312 INFO L82 PathProgramCache]: Analyzing trace with hash -467167496, now seen corresponding path program 1 times [2020-10-14 03:48:14,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:14,313 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1126070275] [2020-10-14 03:48:14,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:14,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:14,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:14,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:15,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:15,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:16,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:19,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:19,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 494 [2020-10-14 03:48:19,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:48:19,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-14 03:48:19,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:19,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:19,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:19,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 03:48:19,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 222 [2020-10-14 03:48:19,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:48:19,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:19,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:19,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:19,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:19,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:19,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:19,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:48:19,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:19,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:19,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:19,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:19,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:19,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:19,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:19,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:19,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:19,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:19,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 03:48:19,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:19,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 03:48:19,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:19,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:19,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:19,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:19,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 03:48:19,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:48:19,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 03:48:19,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:19,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:19,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:19,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-14 03:48:19,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:19,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-10-14 03:48:19,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:19,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:19,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:19,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:19,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 220 [2020-10-14 03:48:19,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:20,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-14 03:48:20,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:20,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:20,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:20,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:48:20,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:20,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 03:48:20,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:20,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:20,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:20,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 133 [2020-10-14 03:48:20,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:20,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:48:20,244 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 158 proven. 134 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-10-14 03:48:20,244 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1126070275] [2020-10-14 03:48:20,244 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:20,245 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:20,245 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456413215] [2020-10-14 03:48:20,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:20,246 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:20,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:20,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:20,246 INFO L87 Difference]: Start difference. First operand 13032 states and 14239 transitions. Second operand 7 states. [2020-10-14 03:48:23,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:23,124 INFO L93 Difference]: Finished difference Result 29102 states and 31997 transitions. [2020-10-14 03:48:23,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:48:23,125 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 480 [2020-10-14 03:48:23,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:23,183 INFO L225 Difference]: With dead ends: 29102 [2020-10-14 03:48:23,183 INFO L226 Difference]: Without dead ends: 16766 [2020-10-14 03:48:23,216 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 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 03:48:23,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16766 states. [2020-10-14 03:48:23,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16766 to 16084. [2020-10-14 03:48:23,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16084 states. [2020-10-14 03:48:23,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16084 states to 16084 states and 17596 transitions. [2020-10-14 03:48:23,480 INFO L78 Accepts]: Start accepts. Automaton has 16084 states and 17596 transitions. Word has length 480 [2020-10-14 03:48:23,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:23,481 INFO L479 AbstractCegarLoop]: Abstraction has 16084 states and 17596 transitions. [2020-10-14 03:48:23,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:23,481 INFO L276 IsEmpty]: Start isEmpty. Operand 16084 states and 17596 transitions. [2020-10-14 03:48:23,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2020-10-14 03:48:23,501 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:23,502 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:48:23,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 03:48:23,502 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:23,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:23,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1471765631, now seen corresponding path program 1 times [2020-10-14 03:48:23,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:23,503 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1509799591] [2020-10-14 03:48:23,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:23,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:23,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:23,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:25,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:27,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:27,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 642 [2020-10-14 03:48:27,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:48:27,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3428 [2020-10-14 03:48:27,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:27,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:27,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:27,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-14 03:48:27,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-14 03:48:27,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:27,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:27,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:27,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:27,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:27,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:27,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:27,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:48:27,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:27,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:27,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:27,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:27,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:27,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:27,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:27,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:27,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:27,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:27,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:48:27,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:27,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-14 03:48:27,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:27,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:27,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:27,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:27,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-14 03:48:27,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:27,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:48:27,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:27,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:27,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:27,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 03:48:27,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:27,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 03:48:27,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:27,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:27,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:27,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:27,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-14 03:48:27,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:27,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 03:48:27,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:27,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:27,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:27,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:48:27,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:27,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 03:48:27,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:27,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:27,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:27,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-14 03:48:27,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:27,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:27,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 03:48:27,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:27,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:27,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:27,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:48:27,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:27,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 03:48:27,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:27,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:27,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:27,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-14 03:48:27,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:27,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:28,118 INFO L134 CoverageAnalysis]: Checked inductivity of 706 backedges. 243 proven. 195 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2020-10-14 03:48:28,118 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1509799591] [2020-10-14 03:48:28,118 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:28,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:28,119 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950146481] [2020-10-14 03:48:28,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:28,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:28,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:28,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:28,120 INFO L87 Difference]: Start difference. First operand 16084 states and 17596 transitions. Second operand 7 states. [2020-10-14 03:48:31,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:31,500 INFO L93 Difference]: Finished difference Result 32152 states and 35277 transitions. [2020-10-14 03:48:31,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:48:31,502 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 626 [2020-10-14 03:48:31,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:31,543 INFO L225 Difference]: With dead ends: 32152 [2020-10-14 03:48:31,543 INFO L226 Difference]: Without dead ends: 16411 [2020-10-14 03:48:31,568 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:48:31,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16411 states. [2020-10-14 03:48:31,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16411 to 16072. [2020-10-14 03:48:31,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16072 states. [2020-10-14 03:48:31,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16072 states to 16072 states and 17544 transitions. [2020-10-14 03:48:31,954 INFO L78 Accepts]: Start accepts. Automaton has 16072 states and 17544 transitions. Word has length 626 [2020-10-14 03:48:31,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:31,956 INFO L479 AbstractCegarLoop]: Abstraction has 16072 states and 17544 transitions. [2020-10-14 03:48:31,956 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:31,956 INFO L276 IsEmpty]: Start isEmpty. Operand 16072 states and 17544 transitions. [2020-10-14 03:48:31,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 637 [2020-10-14 03:48:31,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:31,975 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:48:31,975 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 03:48:31,975 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:31,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:31,976 INFO L82 PathProgramCache]: Analyzing trace with hash 204933301, now seen corresponding path program 1 times [2020-10-14 03:48:31,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:31,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [396434810] [2020-10-14 03:48:31,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:32,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:32,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:32,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:32,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:33,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:37,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:37,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 652 [2020-10-14 03:48:37,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:48:37,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 03:48:37,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:37,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:37,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:37,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-14 03:48:37,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-14 03:48:37,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:37,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:37,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:37,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:37,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:37,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:37,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:37,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:48:37,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:37,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:37,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:37,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:37,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:37,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:37,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:37,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:37,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:37,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:37,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:48:37,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:37,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-14 03:48:37,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:37,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:37,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:37,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:37,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-14 03:48:37,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:37,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:48:37,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:37,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:37,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:37,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 03:48:37,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:37,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 03:48:37,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:37,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:37,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:37,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:37,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-14 03:48:37,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:37,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2020-10-14 03:48:37,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:37,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:37,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:37,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:48:37,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:37,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 03:48:37,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:37,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:37,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:37,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-14 03:48:37,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:37,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:37,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 548 [2020-10-14 03:48:37,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:37,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:37,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:37,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:48:37,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:37,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 03:48:37,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:37,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:37,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:37,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-14 03:48:37,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:37,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:37,871 INFO L134 CoverageAnalysis]: Checked inductivity of 706 backedges. 243 proven. 195 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2020-10-14 03:48:37,871 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [396434810] [2020-10-14 03:48:37,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:37,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:37,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455146566] [2020-10-14 03:48:37,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:37,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:37,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:37,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:37,874 INFO L87 Difference]: Start difference. First operand 16072 states and 17544 transitions. Second operand 7 states. [2020-10-14 03:48:41,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:41,849 INFO L93 Difference]: Finished difference Result 36366 states and 40351 transitions. [2020-10-14 03:48:41,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:48:41,850 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 636 [2020-10-14 03:48:41,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:41,899 INFO L225 Difference]: With dead ends: 36366 [2020-10-14 03:48:41,900 INFO L226 Difference]: Without dead ends: 20978 [2020-10-14 03:48:41,923 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:48:41,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20978 states. [2020-10-14 03:48:42,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20978 to 20635. [2020-10-14 03:48:42,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20635 states. [2020-10-14 03:48:42,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20635 states to 20635 states and 22996 transitions. [2020-10-14 03:48:42,231 INFO L78 Accepts]: Start accepts. Automaton has 20635 states and 22996 transitions. Word has length 636 [2020-10-14 03:48:42,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:42,232 INFO L479 AbstractCegarLoop]: Abstraction has 20635 states and 22996 transitions. [2020-10-14 03:48:42,232 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:42,232 INFO L276 IsEmpty]: Start isEmpty. Operand 20635 states and 22996 transitions. [2020-10-14 03:48:42,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 995 [2020-10-14 03:48:42,266 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:42,267 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 03:48:42,267 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 03:48:42,268 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:42,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:42,268 INFO L82 PathProgramCache]: Analyzing trace with hash -403817903, now seen corresponding path program 1 times [2020-10-14 03:48:42,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:42,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1733236614] [2020-10-14 03:48:42,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:42,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:42,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:42,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:43,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:45,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:47,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:47,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1010 [2020-10-14 03:48:47,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:48:47,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5056 [2020-10-14 03:48:47,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:47,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:47,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:47,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 537 [2020-10-14 03:48:47,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:48:47,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:47,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:47,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:47,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:47,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:47,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:47,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:47,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:48:47,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:47,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:47,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:47,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:47,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:47,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:47,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:47,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:47,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:47,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:47,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:48:47,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:47,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 03:48:47,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:47,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:47,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:47,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:47,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:47,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:47,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:48:47,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:47,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:47,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:47,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:48:47,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:47,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-14 03:48:47,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:47,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:47,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:47,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:47,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 271 [2020-10-14 03:48:47,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:47,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:48:47,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:47,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:48,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:48,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:48:48,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:48,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-10-14 03:48:48,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:48,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:48,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:48,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:48,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:48:48,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:48,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 806 [2020-10-14 03:48:48,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:48,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:48,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:48,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-14 03:48:48,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:48,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 03:48:48,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:48,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:48,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:48,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-14 03:48:48,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:48,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:49,389 INFO L134 CoverageAnalysis]: Checked inductivity of 1357 backedges. 605 proven. 169 refuted. 0 times theorem prover too weak. 583 trivial. 0 not checked. [2020-10-14 03:48:49,390 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1733236614] [2020-10-14 03:48:49,390 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:49,390 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:49,390 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154692377] [2020-10-14 03:48:49,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:49,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:49,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:49,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:49,392 INFO L87 Difference]: Start difference. First operand 20635 states and 22996 transitions. Second operand 7 states. [2020-10-14 03:48:52,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:52,709 INFO L93 Difference]: Finished difference Result 40931 states and 45670 transitions. [2020-10-14 03:48:52,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:48:52,710 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 994 [2020-10-14 03:48:52,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:52,756 INFO L225 Difference]: With dead ends: 40931 [2020-10-14 03:48:52,756 INFO L226 Difference]: Without dead ends: 20980 [2020-10-14 03:48:52,789 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 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 03:48:52,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20980 states. [2020-10-14 03:48:53,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20980 to 20976. [2020-10-14 03:48:53,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20976 states. [2020-10-14 03:48:53,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20976 states to 20976 states and 23293 transitions. [2020-10-14 03:48:53,136 INFO L78 Accepts]: Start accepts. Automaton has 20976 states and 23293 transitions. Word has length 994 [2020-10-14 03:48:53,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:53,138 INFO L479 AbstractCegarLoop]: Abstraction has 20976 states and 23293 transitions. [2020-10-14 03:48:53,138 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:53,138 INFO L276 IsEmpty]: Start isEmpty. Operand 20976 states and 23293 transitions. [2020-10-14 03:48:53,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1148 [2020-10-14 03:48:53,180 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:53,181 INFO L422 BasicCegarLoop]: trace histogram [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, 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 03:48:53,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 03:48:53,182 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:53,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:53,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1232326254, now seen corresponding path program 1 times [2020-10-14 03:48:53,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:53,183 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2019679288] [2020-10-14 03:48:53,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:53,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:53,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:53,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:54,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:56,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:57,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:57,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:58,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:58,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1167 [2020-10-14 03:48:58,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:48:58,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-14 03:48:58,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:58,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:58,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:58,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1141 [2020-10-14 03:48:58,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 03:48:58,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:58,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:58,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:58,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:58,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:58,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:58,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:58,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:48:58,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:58,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:58,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:58,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:58,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:58,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:58,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:58,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:58,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:58,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:58,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:48:58,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:58,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:48:58,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:58,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:58,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:58,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:58,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:58,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:58,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:48:58,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:58,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:58,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:58,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:48:58,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:58,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 03:48:58,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:58,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:58,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:58,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:58,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:58,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:58,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:48:58,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:58,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:58,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:58,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:48:58,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:58,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 03:48:58,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:58,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:58,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:58,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:58,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:58,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:58,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:48:58,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:58,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:58,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:58,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:48:58,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:58,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 03:48:58,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:58,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:58,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:58,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:58,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:58,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:58,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 804 [2020-10-14 03:48:58,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:58,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:58,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:58,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:48:58,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:58,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 03:48:58,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:58,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:58,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:58,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:58,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:58,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:58,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 914 [2020-10-14 03:48:59,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:59,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:59,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:59,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:48:59,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:59,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 03:48:59,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:59,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:59,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:59,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:59,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 210 [2020-10-14 03:48:59,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:59,732 INFO L134 CoverageAnalysis]: Checked inductivity of 2212 backedges. 123 proven. 6 refuted. 0 times theorem prover too weak. 2083 trivial. 0 not checked. [2020-10-14 03:48:59,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2019679288] [2020-10-14 03:48:59,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:59,733 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 03:48:59,733 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044566560] [2020-10-14 03:48:59,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:48:59,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:59,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:48:59,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:48:59,734 INFO L87 Difference]: Start difference. First operand 20976 states and 23293 transitions. Second operand 5 states. [2020-10-14 03:49:02,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:02,261 INFO L93 Difference]: Finished difference Result 42975 states and 48189 transitions. [2020-10-14 03:49:02,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:49:02,262 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1147 [2020-10-14 03:49:02,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:02,306 INFO L225 Difference]: With dead ends: 42975 [2020-10-14 03:49:02,306 INFO L226 Difference]: Without dead ends: 22683 [2020-10-14 03:49:02,333 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:49:02,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22683 states. [2020-10-14 03:49:02,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22683 to 22340. [2020-10-14 03:49:02,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22340 states. [2020-10-14 03:49:02,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22340 states to 22340 states and 24875 transitions. [2020-10-14 03:49:02,697 INFO L78 Accepts]: Start accepts. Automaton has 22340 states and 24875 transitions. Word has length 1147 [2020-10-14 03:49:02,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:02,698 INFO L479 AbstractCegarLoop]: Abstraction has 22340 states and 24875 transitions. [2020-10-14 03:49:02,698 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:49:02,698 INFO L276 IsEmpty]: Start isEmpty. Operand 22340 states and 24875 transitions. [2020-10-14 03:49:02,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1310 [2020-10-14 03:49:02,753 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:02,754 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:49:02,754 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 03:49:02,754 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:02,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:02,755 INFO L82 PathProgramCache]: Analyzing trace with hash 256772144, now seen corresponding path program 1 times [2020-10-14 03:49:02,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:02,755 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1104640214] [2020-10-14 03:49:02,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:02,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:03,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:03,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:03,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:08,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:08,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:08,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1329 [2020-10-14 03:49:08,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:49:08,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5160 [2020-10-14 03:49:08,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:08,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:08,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:08,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 785 [2020-10-14 03:49:08,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:49:08,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:08,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:08,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:08,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:08,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:08,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:08,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:08,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:49:08,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:08,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:08,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:08,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:08,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:08,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:08,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:08,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:08,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:08,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:08,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:49:08,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:08,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 03:49:08,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:08,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:08,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:08,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:08,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:08,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:08,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:49:08,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:08,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:08,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:08,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 03:49:08,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:08,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 03:49:08,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:08,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:08,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:08,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:08,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:08,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:08,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 03:49:08,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:08,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:08,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:08,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 03:49:08,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:08,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 03:49:08,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:08,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:08,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:08,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:08,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:08,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:08,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 633 [2020-10-14 03:49:08,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:08,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:08,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:08,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:49:08,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:08,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 03:49:08,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:08,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:08,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:08,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:08,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 03:49:08,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:08,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 777 [2020-10-14 03:49:08,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:08,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:09,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:09,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:49:09,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:09,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-10-14 03:49:09,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:09,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:09,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:09,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:09,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:49:09,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:09,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1050 [2020-10-14 03:49:09,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:09,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:09,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:09,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-10-14 03:49:09,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:09,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 03:49:09,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:09,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:09,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:09,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 239 [2020-10-14 03:49:09,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:09,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:11,387 INFO L134 CoverageAnalysis]: Checked inductivity of 2874 backedges. 902 proven. 240 refuted. 0 times theorem prover too weak. 1732 trivial. 0 not checked. [2020-10-14 03:49:11,387 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1104640214] [2020-10-14 03:49:11,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:11,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:49:11,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486332620] [2020-10-14 03:49:11,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:49:11,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:11,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:49:11,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:49:11,390 INFO L87 Difference]: Start difference. First operand 22340 states and 24875 transitions. Second operand 8 states. [2020-10-14 03:49:14,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:14,834 INFO L93 Difference]: Finished difference Result 44706 states and 49930 transitions. [2020-10-14 03:49:14,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:49:14,835 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1309 [2020-10-14 03:49:14,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:14,874 INFO L225 Difference]: With dead ends: 44706 [2020-10-14 03:49:14,874 INFO L226 Difference]: Without dead ends: 23050 [2020-10-14 03:49:14,899 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:49:14,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23050 states. [2020-10-14 03:49:15,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23050 to 23028. [2020-10-14 03:49:15,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23028 states. [2020-10-14 03:49:15,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23028 states to 23028 states and 25595 transitions. [2020-10-14 03:49:15,212 INFO L78 Accepts]: Start accepts. Automaton has 23028 states and 25595 transitions. Word has length 1309 [2020-10-14 03:49:15,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:15,213 INFO L479 AbstractCegarLoop]: Abstraction has 23028 states and 25595 transitions. [2020-10-14 03:49:15,213 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:49:15,213 INFO L276 IsEmpty]: Start isEmpty. Operand 23028 states and 25595 transitions. [2020-10-14 03:49:15,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1323 [2020-10-14 03:49:15,258 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:15,259 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 1] [2020-10-14 03:49:15,259 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 03:49:15,259 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:15,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:15,260 INFO L82 PathProgramCache]: Analyzing trace with hash -472340376, now seen corresponding path program 1 times [2020-10-14 03:49:15,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:15,261 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [869052103] [2020-10-14 03:49:15,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:15,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:15,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:15,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:16,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:18,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:20,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:20,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1344 [2020-10-14 03:49:20,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:49:20,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-14 03:49:20,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:20,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:20,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:20,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 924 [2020-10-14 03:49:20,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 03:49:20,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:20,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:20,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:20,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:20,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:20,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:20,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:20,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:49:20,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:20,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:20,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:20,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:20,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:20,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:20,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:20,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:20,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:20,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:20,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:49:20,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:20,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 03:49:20,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:20,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:20,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:20,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:20,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:20,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:20,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:49:20,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:20,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:20,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:20,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:49:20,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:20,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 03:49:20,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:20,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:20,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:20,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:20,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:20,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:20,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:49:20,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:20,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:20,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:20,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:49:20,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:20,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 03:49:20,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:20,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:20,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:20,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:20,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:20,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:20,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:49:20,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:20,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:20,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:20,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:49:20,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:20,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 03:49:20,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:20,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:20,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:20,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:20,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:20,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:20,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 804 [2020-10-14 03:49:20,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:20,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:20,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:20,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:49:20,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:20,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 03:49:20,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:20,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:20,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:20,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:20,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 03:49:20,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:20,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 914 [2020-10-14 03:49:20,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:21,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:21,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:21,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:49:21,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:21,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-14 03:49:21,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:21,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:21,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:21,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:21,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-14 03:49:21,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:21,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1129 [2020-10-14 03:49:21,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:21,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:21,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:21,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 03:49:21,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:21,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 03:49:21,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:21,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:21,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:21,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 03:49:21,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:21,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:22,926 INFO L134 CoverageAnalysis]: Checked inductivity of 3124 backedges. 969 proven. 174 refuted. 0 times theorem prover too weak. 1981 trivial. 0 not checked. [2020-10-14 03:49:22,927 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [869052103] [2020-10-14 03:49:22,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:22,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:49:22,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766986152] [2020-10-14 03:49:22,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:49:22,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:22,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:49:22,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:49:22,930 INFO L87 Difference]: Start difference. First operand 23028 states and 25595 transitions. Second operand 7 states. [2020-10-14 03:49:26,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:26,094 INFO L93 Difference]: Finished difference Result 45378 states and 50509 transitions. [2020-10-14 03:49:26,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:49:26,095 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1322 [2020-10-14 03:49:26,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:26,149 INFO L225 Difference]: With dead ends: 45378 [2020-10-14 03:49:26,149 INFO L226 Difference]: Without dead ends: 22345 [2020-10-14 03:49:26,186 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 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 03:49:26,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22345 states. [2020-10-14 03:49:26,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22345 to 22339. [2020-10-14 03:49:26,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22339 states. [2020-10-14 03:49:26,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22339 states to 22339 states and 24749 transitions. [2020-10-14 03:49:26,523 INFO L78 Accepts]: Start accepts. Automaton has 22339 states and 24749 transitions. Word has length 1322 [2020-10-14 03:49:26,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:26,524 INFO L479 AbstractCegarLoop]: Abstraction has 22339 states and 24749 transitions. [2020-10-14 03:49:26,524 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:49:26,524 INFO L276 IsEmpty]: Start isEmpty. Operand 22339 states and 24749 transitions. [2020-10-14 03:49:26,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1327 [2020-10-14 03:49:26,560 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:26,563 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 03:49:26,564 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 03:49:26,565 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:26,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:26,566 INFO L82 PathProgramCache]: Analyzing trace with hash -51017111, now seen corresponding path program 1 times [2020-10-14 03:49:26,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:26,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [84418827] [2020-10-14 03:49:26,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:26,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:27,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:27,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:29,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:29,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:30,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:32,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:32,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1346 [2020-10-14 03:49:32,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:49:32,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-14 03:49:32,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:32,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:32,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:32,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 802 [2020-10-14 03:49:32,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:49:32,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:32,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:32,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:32,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:32,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:32,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:32,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:32,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 03:49:32,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:32,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:32,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:32,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:32,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:32,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:32,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:32,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:32,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:32,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:32,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:49:32,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:32,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 03:49:32,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:32,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:32,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:32,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:32,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:32,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:32,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:49:32,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:32,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:32,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:32,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 03:49:32,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:32,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 03:49:32,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:32,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:32,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:32,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:32,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:32,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:32,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 03:49:32,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:32,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:32,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:32,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:49:32,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:32,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 03:49:32,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:32,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:32,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:32,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:32,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:32,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:32,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 03:49:32,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:32,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:32,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:32,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 03:49:32,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:32,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 03:49:32,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:32,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:32,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:32,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:32,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 03:49:32,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:32,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-14 03:49:32,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:32,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:32,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:32,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:49:32,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:32,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-14 03:49:32,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:32,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:32,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:32,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:32,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:49:32,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:33,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1067 [2020-10-14 03:49:33,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:33,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:33,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:33,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-10-14 03:49:33,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:33,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 03:49:33,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:33,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:33,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:33,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 239 [2020-10-14 03:49:33,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:33,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:34,247 INFO L134 CoverageAnalysis]: Checked inductivity of 2927 backedges. 919 proven. 240 refuted. 0 times theorem prover too weak. 1768 trivial. 0 not checked. [2020-10-14 03:49:34,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [84418827] [2020-10-14 03:49:34,247 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:34,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:49:34,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984227988] [2020-10-14 03:49:34,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:49:34,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:34,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:49:34,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:49:34,250 INFO L87 Difference]: Start difference. First operand 22339 states and 24749 transitions. Second operand 7 states. [2020-10-14 03:49:37,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:37,477 INFO L93 Difference]: Finished difference Result 44000 states and 48817 transitions. [2020-10-14 03:49:37,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:49:37,478 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1326 [2020-10-14 03:49:37,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:37,511 INFO L225 Difference]: With dead ends: 44000 [2020-10-14 03:49:37,511 INFO L226 Difference]: Without dead ends: 22345 [2020-10-14 03:49:37,536 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-14 03:49:37,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22345 states. [2020-10-14 03:49:37,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22345 to 22339. [2020-10-14 03:49:37,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22339 states. [2020-10-14 03:49:37,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22339 states to 22339 states and 24743 transitions. [2020-10-14 03:49:37,783 INFO L78 Accepts]: Start accepts. Automaton has 22339 states and 24743 transitions. Word has length 1326 [2020-10-14 03:49:37,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:37,784 INFO L479 AbstractCegarLoop]: Abstraction has 22339 states and 24743 transitions. [2020-10-14 03:49:37,784 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:49:37,784 INFO L276 IsEmpty]: Start isEmpty. Operand 22339 states and 24743 transitions. [2020-10-14 03:49:37,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1337 [2020-10-14 03:49:37,930 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:37,931 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 1, 1] [2020-10-14 03:49:37,931 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 03:49:37,931 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:37,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:37,932 INFO L82 PathProgramCache]: Analyzing trace with hash 1958744681, now seen corresponding path program 1 times [2020-10-14 03:49:37,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:37,932 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2096353209] [2020-10-14 03:49:37,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:38,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:38,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:38,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:38,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:39,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:43,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:43,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1356 [2020-10-14 03:49:43,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:49:43,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5057 [2020-10-14 03:49:43,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:43,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:43,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:43,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 812 [2020-10-14 03:49:43,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:49:43,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:43,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:43,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:43,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:43,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:43,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:43,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:43,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:49:43,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:43,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:43,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:43,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:43,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:43,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:43,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:43,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:43,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:43,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:43,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:49:43,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:43,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 03:49:43,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:43,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:43,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:43,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:43,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:43,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 03:49:43,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:49:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:43,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:43,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:43,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:49:43,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:43,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 03:49:43,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:43,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:43,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:43,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:43,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:43,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:43,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:49:43,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:43,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:43,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:43,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:49:43,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:43,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 03:49:43,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:43,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:43,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:43,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:43,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:43,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:43,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:49:43,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:43,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:43,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:43,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:49:43,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:43,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 03:49:43,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:43,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:43,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:43,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:43,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-14 03:49:43,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:43,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 804 [2020-10-14 03:49:43,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:43,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:44,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:44,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:49:44,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:44,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-10-14 03:49:44,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:44,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:44,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:44,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:44,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:49:44,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:44,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1077 [2020-10-14 03:49:44,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:44,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:44,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:44,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-10-14 03:49:44,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:44,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 03:49:44,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:44,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:44,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:44,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 239 [2020-10-14 03:49:44,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:44,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:45,097 INFO L134 CoverageAnalysis]: Checked inductivity of 2775 backedges. 926 proven. 240 refuted. 0 times theorem prover too weak. 1609 trivial. 0 not checked. [2020-10-14 03:49:45,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2096353209] [2020-10-14 03:49:45,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:45,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:49:45,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761847031] [2020-10-14 03:49:45,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:49:45,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:45,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:49:45,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:49:45,100 INFO L87 Difference]: Start difference. First operand 22339 states and 24743 transitions. Second operand 7 states. [2020-10-14 03:49:48,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:48,948 INFO L93 Difference]: Finished difference Result 46731 states and 52009 transitions. [2020-10-14 03:49:48,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:49:48,949 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1336 [2020-10-14 03:49:48,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:48,988 INFO L225 Difference]: With dead ends: 46731 [2020-10-14 03:49:48,989 INFO L226 Difference]: Without dead ends: 25076 [2020-10-14 03:49:49,015 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 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 03:49:49,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25076 states. [2020-10-14 03:49:49,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25076 to 24057. [2020-10-14 03:49:49,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24057 states. [2020-10-14 03:49:49,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24057 states to 24057 states and 26845 transitions. [2020-10-14 03:49:49,262 INFO L78 Accepts]: Start accepts. Automaton has 24057 states and 26845 transitions. Word has length 1336 [2020-10-14 03:49:49,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:49,263 INFO L479 AbstractCegarLoop]: Abstraction has 24057 states and 26845 transitions. [2020-10-14 03:49:49,263 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:49:49,263 INFO L276 IsEmpty]: Start isEmpty. Operand 24057 states and 26845 transitions. [2020-10-14 03:49:49,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1399 [2020-10-14 03:49:49,295 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:49,296 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 3, 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] [2020-10-14 03:49:49,296 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 03:49:49,296 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:49,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:49,297 INFO L82 PathProgramCache]: Analyzing trace with hash -448481907, now seen corresponding path program 1 times [2020-10-14 03:49:49,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:49,297 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1317138057] [2020-10-14 03:49:49,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:49,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:49,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:49,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:49,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:51,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:54,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:54,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1418 [2020-10-14 03:49:54,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:49:54,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-14 03:49:54,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:54,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:54,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:54,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 622 [2020-10-14 03:49:54,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 03:49:54,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:54,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:54,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:54,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:54,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:54,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:54,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:54,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:49:54,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:54,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:54,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:54,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:54,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:54,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:54,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:54,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:54,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:54,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:54,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:49:54,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:54,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 03:49:54,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:54,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:54,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:54,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:54,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:54,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:54,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:49:54,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:54,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:54,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:54,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:49:54,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:54,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 03:49:54,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:54,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:54,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:54,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:54,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:54,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:54,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:49:54,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:54,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:54,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:54,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:49:54,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:54,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 03:49:54,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:54,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:54,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:54,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:54,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 03:49:54,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:54,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:49:54,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:54,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:55,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:55,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:49:55,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:55,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-10-14 03:49:55,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:55,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:55,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:55,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:55,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 03:49:55,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:55,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 866 [2020-10-14 03:49:55,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:55,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:55,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:55,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:49:55,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:55,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-14 03:49:55,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:55,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:55,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:55,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 03:49:55,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:55,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:55,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1139 [2020-10-14 03:49:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:55,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:55,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:55,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-10-14 03:49:55,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:55,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-14 03:49:55,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:55,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:55,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:55,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 239 [2020-10-14 03:49:55,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:55,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:56,987 INFO L134 CoverageAnalysis]: Checked inductivity of 3013 backedges. 721 proven. 487 refuted. 0 times theorem prover too weak. 1805 trivial. 0 not checked. [2020-10-14 03:49:56,988 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1317138057] [2020-10-14 03:49:56,988 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:56,988 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:49:56,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552790770] [2020-10-14 03:49:56,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:49:56,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:56,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:49:56,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:49:56,990 INFO L87 Difference]: Start difference. First operand 24057 states and 26845 transitions. Second operand 7 states. [2020-10-14 03:50:01,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:50:01,756 INFO L93 Difference]: Finished difference Result 50507 states and 56299 transitions. [2020-10-14 03:50:01,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:50:01,757 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1398 [2020-10-14 03:50:01,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:50:01,804 INFO L225 Difference]: With dead ends: 50507 [2020-10-14 03:50:01,805 INFO L226 Difference]: Without dead ends: 27134 [2020-10-14 03:50:01,833 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:50:01,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27134 states. [2020-10-14 03:50:02,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27134 to 26107. [2020-10-14 03:50:02,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26107 states. [2020-10-14 03:50:02,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26107 states to 26107 states and 28818 transitions. [2020-10-14 03:50:02,108 INFO L78 Accepts]: Start accepts. Automaton has 26107 states and 28818 transitions. Word has length 1398 [2020-10-14 03:50:02,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:50:02,109 INFO L479 AbstractCegarLoop]: Abstraction has 26107 states and 28818 transitions. [2020-10-14 03:50:02,109 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:50:02,109 INFO L276 IsEmpty]: Start isEmpty. Operand 26107 states and 28818 transitions. [2020-10-14 03:50:02,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1428 [2020-10-14 03:50:02,133 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:50:02,134 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 1, 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 03:50:02,134 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 03:50:02,134 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:50:02,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:50:02,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1437361188, now seen corresponding path program 1 times [2020-10-14 03:50:02,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:50:02,135 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [651925099] [2020-10-14 03:50:02,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:50:02,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:02,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:02,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:03,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:07,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:07,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1447 [2020-10-14 03:50:07,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:50:07,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-14 03:50:07,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:07,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:07,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:07,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 903 [2020-10-14 03:50:07,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:50:07,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:07,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:50:07,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:07,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:07,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:07,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:50:07,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:07,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:50:07,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:07,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:07,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:07,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:07,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:07,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:07,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:50:07,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:07,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:07,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:07,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:50:07,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:07,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 03:50:07,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:07,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:07,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:07,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:07,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:07,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:07,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:50:07,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:07,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:07,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:07,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 03:50:07,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:07,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 03:50:07,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:07,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:07,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:07,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:07,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:07,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:07,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 03:50:07,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:07,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:07,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:07,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 03:50:07,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:07,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 03:50:07,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:07,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:07,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:07,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:07,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:07,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:07,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 633 [2020-10-14 03:50:07,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:07,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:07,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:07,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:50:07,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:07,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-14 03:50:07,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:07,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:07,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:50:07,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:07,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 257 [2020-10-14 03:50:07,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:07,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 895 [2020-10-14 03:50:07,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:07,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:08,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:08,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:50:08,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:08,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-14 03:50:08,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:08,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:08,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:08,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:50:08,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:50:08,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:08,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1168 [2020-10-14 03:50:08,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:08,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:08,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:08,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-10-14 03:50:08,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:08,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 03:50:08,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:08,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:08,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:08,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 239 [2020-10-14 03:50:08,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:08,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:09,364 INFO L134 CoverageAnalysis]: Checked inductivity of 3282 backedges. 1020 proven. 240 refuted. 0 times theorem prover too weak. 2022 trivial. 0 not checked. [2020-10-14 03:50:09,365 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [651925099] [2020-10-14 03:50:09,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:50:09,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:50:09,365 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442936060] [2020-10-14 03:50:09,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:50:09,366 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:50:09,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:50:09,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:50:09,366 INFO L87 Difference]: Start difference. First operand 26107 states and 28818 transitions. Second operand 7 states. [2020-10-14 03:50:13,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:50:13,906 INFO L93 Difference]: Finished difference Result 52890 states and 58602 transitions. [2020-10-14 03:50:13,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:50:13,907 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1427 [2020-10-14 03:50:13,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:50:13,951 INFO L225 Difference]: With dead ends: 52890 [2020-10-14 03:50:13,951 INFO L226 Difference]: Without dead ends: 27467 [2020-10-14 03:50:13,982 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:50:14,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27467 states. [2020-10-14 03:50:14,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27467 to 25080. [2020-10-14 03:50:14,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25080 states. [2020-10-14 03:50:14,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25080 states to 25080 states and 27121 transitions. [2020-10-14 03:50:14,480 INFO L78 Accepts]: Start accepts. Automaton has 25080 states and 27121 transitions. Word has length 1427 [2020-10-14 03:50:14,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:50:14,481 INFO L479 AbstractCegarLoop]: Abstraction has 25080 states and 27121 transitions. [2020-10-14 03:50:14,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:50:14,481 INFO L276 IsEmpty]: Start isEmpty. Operand 25080 states and 27121 transitions. [2020-10-14 03:50:14,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1644 [2020-10-14 03:50:14,511 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:50:14,512 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 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, 4, 4, 4, 4, 4, 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, 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] [2020-10-14 03:50:14,512 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 03:50:14,512 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:50:14,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:50:14,513 INFO L82 PathProgramCache]: Analyzing trace with hash 331649476, now seen corresponding path program 1 times [2020-10-14 03:50:14,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:50:14,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [168767144] [2020-10-14 03:50:14,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:50:14,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:14,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:14,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:15,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:17,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:19,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:19,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1667 [2020-10-14 03:50:19,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:50:19,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-14 03:50:19,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:19,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:19,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:19,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 924 [2020-10-14 03:50:19,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 287 [2020-10-14 03:50:19,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:19,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:50:19,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:19,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:19,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:19,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:50:19,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:19,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:50:19,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:19,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:19,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:19,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:19,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:19,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:19,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:50:19,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:19,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:19,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:19,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:50:19,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:19,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 03:50:19,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:19,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:19,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:19,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:19,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:19,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:19,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:50:19,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:19,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:19,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:19,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:50:19,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:19,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 03:50:19,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:19,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:19,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:19,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:19,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:19,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:20,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:50:20,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:20,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:20,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:20,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:50:20,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:20,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 03:50:20,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:20,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:20,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:20,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:20,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:20,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:20,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:50:20,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:20,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:20,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:20,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:50:20,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:20,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 03:50:20,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:20,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:20,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:20,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:20,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:20,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:20,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 804 [2020-10-14 03:50:20,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:20,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:20,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:20,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:50:20,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:20,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:50:20,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:20,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:20,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:50:20,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:20,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 03:50:20,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:20,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 914 [2020-10-14 03:50:20,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:20,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:20,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:20,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 285 [2020-10-14 03:50:20,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:20,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-14 03:50:20,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:20,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:20,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:20,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:50:20,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 285 [2020-10-14 03:50:20,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:20,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1198 [2020-10-14 03:50:20,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:20,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:20,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:20,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 03:50:20,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:20,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 03:50:20,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:20,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:20,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:20,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 03:50:20,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:20,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:20,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1452 [2020-10-14 03:50:20,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:20,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:20,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:20,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 03:50:20,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:20,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 03:50:20,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:20,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:20,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:20,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-14 03:50:20,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:20,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:23,174 INFO L134 CoverageAnalysis]: Checked inductivity of 4541 backedges. 1103 proven. 423 refuted. 0 times theorem prover too weak. 3015 trivial. 0 not checked. [2020-10-14 03:50:23,174 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [168767144] [2020-10-14 03:50:23,175 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:50:23,175 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:50:23,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776124826] [2020-10-14 03:50:23,176 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:50:23,176 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:50:23,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:50:23,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:50:23,177 INFO L87 Difference]: Start difference. First operand 25080 states and 27121 transitions. Second operand 7 states. [2020-10-14 03:50:26,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:50:26,313 INFO L93 Difference]: Finished difference Result 50164 states and 54280 transitions. [2020-10-14 03:50:26,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:50:26,314 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1643 [2020-10-14 03:50:26,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:50:26,358 INFO L225 Difference]: With dead ends: 50164 [2020-10-14 03:50:26,358 INFO L226 Difference]: Without dead ends: 25768 [2020-10-14 03:50:26,386 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:50:26,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25768 states. [2020-10-14 03:50:26,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25768 to 25423. [2020-10-14 03:50:26,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25423 states. [2020-10-14 03:50:26,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25423 states to 25423 states and 27476 transitions. [2020-10-14 03:50:26,650 INFO L78 Accepts]: Start accepts. Automaton has 25423 states and 27476 transitions. Word has length 1643 [2020-10-14 03:50:26,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:50:26,651 INFO L479 AbstractCegarLoop]: Abstraction has 25423 states and 27476 transitions. [2020-10-14 03:50:26,651 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:50:26,651 INFO L276 IsEmpty]: Start isEmpty. Operand 25423 states and 27476 transitions. [2020-10-14 03:50:26,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1717 [2020-10-14 03:50:26,685 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:50:26,686 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-14 03:50:26,686 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 03:50:26,686 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:50:26,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:50:26,687 INFO L82 PathProgramCache]: Analyzing trace with hash -548660532, now seen corresponding path program 1 times [2020-10-14 03:50:26,687 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:50:26,687 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [424896493] [2020-10-14 03:50:26,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:50:26,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:26,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:27,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:27,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:28,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:31,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:31,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1742 [2020-10-14 03:50:31,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:50:31,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-14 03:50:31,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:31,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:31,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:31,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 924 [2020-10-14 03:50:31,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:50:31,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:31,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:50:31,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:31,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:31,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:31,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:50:31,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:31,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:50:31,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:31,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:31,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:31,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:31,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:31,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:31,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:50:32,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:32,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:32,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:32,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:50:32,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:32,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 03:50:32,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:32,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:32,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:32,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:32,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:32,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:32,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:50:32,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:32,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:32,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:32,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:50:32,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:32,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 03:50:32,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:32,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:32,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:32,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:32,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:32,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:32,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:50:32,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:32,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:32,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:32,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:50:32,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:32,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 03:50:32,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:32,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:32,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:32,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:32,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:32,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:32,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:50:32,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:32,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:32,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:32,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:50:32,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:32,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 03:50:32,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:32,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:32,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:32,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:32,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:32,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:32,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 804 [2020-10-14 03:50:32,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:32,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:32,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:32,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:50:32,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:32,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 03:50:32,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:32,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:32,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:50:32,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:32,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 03:50:32,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:32,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 914 [2020-10-14 03:50:32,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:32,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:32,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:32,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:50:32,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:32,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-10-14 03:50:32,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:32,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:32,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:32,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:50:32,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:50:32,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:32,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1187 [2020-10-14 03:50:32,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:32,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:32,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:32,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 339 [2020-10-14 03:50:32,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:32,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-14 03:50:32,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:32,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:32,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:32,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 336 [2020-10-14 03:50:32,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:32,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:32,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:50:32,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:32,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:32,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:32,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 03:50:32,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:32,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 03:50:32,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:32,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:32,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:32,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:32,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:32,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:32,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1523 [2020-10-14 03:50:33,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:33,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:33,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:33,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 03:50:33,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:33,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 03:50:33,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:33,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:33,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:33,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 03:50:33,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:33,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:35,292 INFO L134 CoverageAnalysis]: Checked inductivity of 4589 backedges. 1100 proven. 444 refuted. 0 times theorem prover too weak. 3045 trivial. 0 not checked. [2020-10-14 03:50:35,292 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [424896493] [2020-10-14 03:50:35,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:50:35,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:50:35,293 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614930773] [2020-10-14 03:50:35,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:50:35,294 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:50:35,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:50:35,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:50:35,295 INFO L87 Difference]: Start difference. First operand 25423 states and 27476 transitions. Second operand 7 states.