/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/Problem15_label36.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 03:31:44,681 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 03:31:44,685 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 03:31:44,731 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 03:31:44,731 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 03:31:44,739 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 03:31:44,741 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 03:31:44,745 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 03:31:44,747 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 03:31:44,750 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 03:31:44,751 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 03:31:44,752 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 03:31:44,752 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 03:31:44,755 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 03:31:44,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 03:31:44,759 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 03:31:44,761 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 03:31:44,762 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 03:31:44,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 03:31:44,773 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 03:31:44,775 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 03:31:44,776 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 03:31:44,777 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 03:31:44,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 03:31:44,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 03:31:44,794 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 03:31:44,794 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 03:31:44,798 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 03:31:44,799 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 03:31:44,800 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 03:31:44,800 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 03:31:44,800 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 03:31:44,801 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 03:31:44,802 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 03:31:44,805 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 03:31:44,805 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 03:31:44,806 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 03:31:44,806 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 03:31:44,806 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 03:31:44,811 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 03:31:44,812 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 03:31:44,813 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 03:31:44,851 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 03:31:44,851 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 03:31:44,853 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 03:31:44,854 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 03:31:44,854 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 03:31:44,854 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 03:31:44,855 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 03:31:44,855 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 03:31:44,855 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 03:31:44,855 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 03:31:44,855 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 03:31:44,855 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 03:31:44,856 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 03:31:44,856 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 03:31:44,857 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 03:31:44,857 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 03:31:44,857 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 03:31:44,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 03:31:44,858 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 03:31:44,858 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 03:31:44,858 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 03:31:44,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 03:31:44,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 03:31:44,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 03:31:44,859 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 03:31:44,859 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 03:31:44,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 03:31:44,860 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 03:31:44,860 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 03:31:44,860 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 03:31:45,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 03:31:45,179 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 03:31:45,183 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 03:31:45,184 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 03:31:45,185 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 03:31:45,186 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label36.c [2020-10-14 03:31:45,254 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a90dc6c1c/bb9b2fcf73fd4bafa820fe69309752a1/FLAGc8e71d2f1 [2020-10-14 03:31:45,984 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 03:31:45,985 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem15_label36.c [2020-10-14 03:31:46,020 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a90dc6c1c/bb9b2fcf73fd4bafa820fe69309752a1/FLAGc8e71d2f1 [2020-10-14 03:31:46,100 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a90dc6c1c/bb9b2fcf73fd4bafa820fe69309752a1 [2020-10-14 03:31:46,112 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 03:31:46,114 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 03:31:46,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 03:31:46,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 03:31:46,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 03:31:46,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:31:46" (1/1) ... [2020-10-14 03:31:46,127 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6266eb80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:31:46, skipping insertion in model container [2020-10-14 03:31:46,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:31:46" (1/1) ... [2020-10-14 03:31:46,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 03:31:46,230 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 03:31:47,098 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:31:47,102 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 03:31:47,337 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:31:47,361 INFO L208 MainTranslator]: Completed translation [2020-10-14 03:31:47,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:31:47 WrapperNode [2020-10-14 03:31:47,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 03:31:47,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 03:31:47,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 03:31:47,363 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 03:31:47,383 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:31:47" (1/1) ... [2020-10-14 03:31:47,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:31:47" (1/1) ... [2020-10-14 03:31:47,413 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:31:47" (1/1) ... [2020-10-14 03:31:47,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:31:47" (1/1) ... [2020-10-14 03:31:47,481 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:31:47" (1/1) ... [2020-10-14 03:31:47,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:31:47" (1/1) ... [2020-10-14 03:31:47,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:31:47" (1/1) ... [2020-10-14 03:31:47,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 03:31:47,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 03:31:47,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 03:31:47,559 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 03:31:47,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:31:47" (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 03:31:47,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 03:31:47,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 03:31:47,645 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 03:31:47,645 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 03:31:47,645 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 03:31:47,646 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 03:31:47,646 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 03:31:47,646 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 03:31:47,646 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 03:31:47,646 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 03:31:47,647 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 03:31:47,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 03:31:47,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 03:31:53,769 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 03:31:53,769 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 03:31:53,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:31:53 BoogieIcfgContainer [2020-10-14 03:31:53,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 03:31:53,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 03:31:53,778 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 03:31:53,782 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 03:31:53,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:31:46" (1/3) ... [2020-10-14 03:31:53,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b702d59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:31:53, skipping insertion in model container [2020-10-14 03:31:53,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:31:47" (2/3) ... [2020-10-14 03:31:53,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b702d59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:31:53, skipping insertion in model container [2020-10-14 03:31:53,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:31:53" (3/3) ... [2020-10-14 03:31:53,786 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem15_label36.c [2020-10-14 03:31:53,795 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 03:31:53,803 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 03:31:53,818 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 03:31:53,846 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 03:31:53,846 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 03:31:53,846 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 03:31:53,846 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 03:31:53,846 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 03:31:53,847 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 03:31:53,847 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 03:31:53,847 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 03:31:53,876 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states. [2020-10-14 03:31:53,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 03:31:53,886 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:31:53,887 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:31:53,888 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:31:53,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:31:53,894 INFO L82 PathProgramCache]: Analyzing trace with hash 414011765, now seen corresponding path program 1 times [2020-10-14 03:31:53,902 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:31:53,903 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1168404015] [2020-10-14 03:31:53,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:31:54,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:31:54,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:31:54,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:31:54,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 03:31:54,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:31:54,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 482 [2020-10-14 03:31:54,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:31:54,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:31:54,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 03:31:54,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 03:31:54,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 03:31:54,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 03:31:54,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:31:54,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:31:54,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:31:54,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:31:54,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:31:54,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:31:54,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 03:31:54,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:31:54,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:31:54,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:31:54,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:31:54,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:31:54,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:31:54,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:31:54,814 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1168404015] [2020-10-14 03:31:54,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 03:31:54,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 03:31:54,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466155258] [2020-10-14 03:31:54,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 03:31:54,825 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:31:54,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 03:31:54,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 03:31:54,843 INFO L87 Difference]: Start difference. First operand 437 states. Second operand 4 states. [2020-10-14 03:32:00,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:32:00,872 INFO L93 Difference]: Finished difference Result 1199 states and 2164 transitions. [2020-10-14 03:32:00,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:32:00,874 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2020-10-14 03:32:00,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:32:00,896 INFO L225 Difference]: With dead ends: 1199 [2020-10-14 03:32:00,897 INFO L226 Difference]: Without dead ends: 697 [2020-10-14 03:32:00,909 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 03:32:00,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2020-10-14 03:32:00,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 691. [2020-10-14 03:32:00,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2020-10-14 03:32:01,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 1012 transitions. [2020-10-14 03:32:01,003 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 1012 transitions. Word has length 67 [2020-10-14 03:32:01,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:32:01,004 INFO L479 AbstractCegarLoop]: Abstraction has 691 states and 1012 transitions. [2020-10-14 03:32:01,004 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 03:32:01,004 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 1012 transitions. [2020-10-14 03:32:01,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-14 03:32:01,011 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:32:01,011 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:32:01,012 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 03:32:01,012 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:32:01,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:32:01,012 INFO L82 PathProgramCache]: Analyzing trace with hash -89553710, now seen corresponding path program 1 times [2020-10-14 03:32:01,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:32:01,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1342414443] [2020-10-14 03:32:01,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:32:01,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:32:01,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:01,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:02,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:03,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:32:03,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-14 03:32:03,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:32:03,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2801 [2020-10-14 03:32:03,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:32:03,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:32:03,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:32:03,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-14 03:32:03,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 03:32:03,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:32:03,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:32:03,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:32:03,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:03,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:32:03,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:32:03,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:32:03,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:32:03,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:32:03,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:32:03,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:32:03,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:32:03,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:32:03,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:32:03,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:32:04,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:32:04,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:04,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:32:04,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:32:04,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:32:04,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 03:32:04,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:32:04,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:32:04,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:32:04,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:32:04,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 03:32:04,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:32:04,167 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 59 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:32:04,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1342414443] [2020-10-14 03:32:04,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:32:04,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 03:32:04,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123477064] [2020-10-14 03:32:04,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 03:32:04,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:32:04,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 03:32:04,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:32:04,172 INFO L87 Difference]: Start difference. First operand 691 states and 1012 transitions. Second operand 6 states. [2020-10-14 03:32:17,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:32:17,915 INFO L93 Difference]: Finished difference Result 2639 states and 3908 transitions. [2020-10-14 03:32:17,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 03:32:17,916 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2020-10-14 03:32:17,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:32:17,927 INFO L225 Difference]: With dead ends: 2639 [2020-10-14 03:32:17,927 INFO L226 Difference]: Without dead ends: 1954 [2020-10-14 03:32:17,931 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:32:17,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1954 states. [2020-10-14 03:32:18,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1948. [2020-10-14 03:32:18,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1948 states. [2020-10-14 03:32:18,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1948 states to 1948 states and 2590 transitions. [2020-10-14 03:32:18,027 INFO L78 Accepts]: Start accepts. Automaton has 1948 states and 2590 transitions. Word has length 136 [2020-10-14 03:32:18,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:32:18,030 INFO L479 AbstractCegarLoop]: Abstraction has 1948 states and 2590 transitions. [2020-10-14 03:32:18,030 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 03:32:18,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1948 states and 2590 transitions. [2020-10-14 03:32:18,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-14 03:32:18,046 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:32:18,046 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 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 03:32:18,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 03:32:18,047 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:32:18,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:32:18,047 INFO L82 PathProgramCache]: Analyzing trace with hash -163717938, now seen corresponding path program 1 times [2020-10-14 03:32:18,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:32:18,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1062425038] [2020-10-14 03:32:18,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:32:18,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:32:18,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:18,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:18,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:19,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:21,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:21,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:22,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:32:22,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-14 03:32:22,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:32:22,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4071 [2020-10-14 03:32:22,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:32:22,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:32:22,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:32:22,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-14 03:32:22,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 03:32:22,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:32:22,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:32:22,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:32:22,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:22,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:32:22,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:32:22,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:32:22,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:32:22,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:32:22,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:32:22,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:32:22,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:32:22,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:32:22,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:32:22,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:32:22,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:32:22,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:22,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:32:22,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 03:32:22,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:32:22,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 03:32:22,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:32:22,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:32:22,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:32:22,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:32:22,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 03:32:22,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:32:22,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 03:32:22,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:32:22,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:22,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:32:22,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 03:32:22,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:32:22,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-14 03:32:22,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:32:22,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:32:22,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:32:22,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:32:22,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 03:32:22,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:32:22,730 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 196 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:32:22,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1062425038] [2020-10-14 03:32:22,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:32:22,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:32:22,732 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863519556] [2020-10-14 03:32:22,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:32:22,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:32:22,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:32:22,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:32:22,736 INFO L87 Difference]: Start difference. First operand 1948 states and 2590 transitions. Second operand 7 states. [2020-10-14 03:32:32,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:32:32,434 INFO L93 Difference]: Finished difference Result 5499 states and 7488 transitions. [2020-10-14 03:32:32,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:32:32,440 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 241 [2020-10-14 03:32:32,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:32:32,463 INFO L225 Difference]: With dead ends: 5499 [2020-10-14 03:32:32,463 INFO L226 Difference]: Without dead ends: 3557 [2020-10-14 03:32:32,470 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 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 03:32:32,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3557 states. [2020-10-14 03:32:32,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3557 to 2916. [2020-10-14 03:32:32,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2916 states. [2020-10-14 03:32:32,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2916 states to 2916 states and 3705 transitions. [2020-10-14 03:32:32,586 INFO L78 Accepts]: Start accepts. Automaton has 2916 states and 3705 transitions. Word has length 241 [2020-10-14 03:32:32,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:32:32,588 INFO L479 AbstractCegarLoop]: Abstraction has 2916 states and 3705 transitions. [2020-10-14 03:32:32,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:32:32,589 INFO L276 IsEmpty]: Start isEmpty. Operand 2916 states and 3705 transitions. [2020-10-14 03:32:32,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2020-10-14 03:32:32,599 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:32:32,607 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-14 03:32:32,607 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 03:32:32,607 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:32:32,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:32:32,608 INFO L82 PathProgramCache]: Analyzing trace with hash 264477718, now seen corresponding path program 1 times [2020-10-14 03:32:32,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:32:32,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [962622101] [2020-10-14 03:32:32,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:32:32,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:32:32,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:32,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:33,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:37,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:37,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:32:37,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 440 [2020-10-14 03:32:37,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:32:37,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 03:32:37,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:32:37,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:32:37,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:32:37,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 210 [2020-10-14 03:32:37,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 03:32:37,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:32:37,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:32:37,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:32:37,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:37,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:32:37,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:32:37,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:32:37,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 03:32:37,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:32:37,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:32:37,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:32:37,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:32:37,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:32:37,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:32:37,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:32:37,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:32:37,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:38,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:32:38,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-14 03:32:38,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:32:38,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-10-14 03:32:38,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:32:38,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:32:38,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:32:38,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:32:38,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 195 [2020-10-14 03:32:38,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:32:38,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 03:32:38,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:32:38,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:38,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:32:38,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 03:32:38,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:32:38,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-14 03:32:38,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:32:38,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:32:38,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:32:38,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:32:38,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 03:32:38,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:32:38,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2020-10-14 03:32:38,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:32:38,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:38,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:32:38,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 03:32:38,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:32:38,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 03:32:38,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:32:38,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:32:38,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:32:38,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-14 03:32:38,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:32:38,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:32:39,023 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 261 proven. 78 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-10-14 03:32:39,024 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [962622101] [2020-10-14 03:32:39,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:32:39,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:32:39,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265540626] [2020-10-14 03:32:39,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:32:39,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:32:39,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:32:39,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:32:39,028 INFO L87 Difference]: Start difference. First operand 2916 states and 3705 transitions. Second operand 8 states. [2020-10-14 03:32:55,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:32:55,192 INFO L93 Difference]: Finished difference Result 8431 states and 10875 transitions. [2020-10-14 03:32:55,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 03:32:55,193 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 426 [2020-10-14 03:32:55,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:32:55,229 INFO L225 Difference]: With dead ends: 8431 [2020-10-14 03:32:55,229 INFO L226 Difference]: Without dead ends: 5521 [2020-10-14 03:32:55,238 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-14 03:32:55,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5521 states. [2020-10-14 03:32:55,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5521 to 5180. [2020-10-14 03:32:55,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5180 states. [2020-10-14 03:32:55,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5180 states to 5180 states and 6564 transitions. [2020-10-14 03:32:55,399 INFO L78 Accepts]: Start accepts. Automaton has 5180 states and 6564 transitions. Word has length 426 [2020-10-14 03:32:55,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:32:55,402 INFO L479 AbstractCegarLoop]: Abstraction has 5180 states and 6564 transitions. [2020-10-14 03:32:55,402 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:32:55,406 INFO L276 IsEmpty]: Start isEmpty. Operand 5180 states and 6564 transitions. [2020-10-14 03:32:55,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2020-10-14 03:32:55,419 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:32:55,420 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:32:55,420 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 03:32:55,420 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:32:55,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:32:55,421 INFO L82 PathProgramCache]: Analyzing trace with hash -846358102, now seen corresponding path program 1 times [2020-10-14 03:32:55,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:32:55,422 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [597028432] [2020-10-14 03:32:55,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:32:55,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:32:55,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:55,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:56,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:00,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:33:00,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 471 [2020-10-14 03:33:00,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:33:00,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5073 [2020-10-14 03:33:00,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:33:00,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:33:00,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:33:00,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 210 [2020-10-14 03:33:00,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-14 03:33:00,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:33:00,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:33:00,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:33:00,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:00,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:33:00,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:33:00,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:33:00,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:33:00,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:33:00,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:33:00,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:33:00,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:33:00,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:33:00,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:33:00,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:33:00,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:33:00,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:00,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:33:00,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-14 03:33:00,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:33:00,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-10-14 03:33:00,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:33:00,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:33:00,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:33:00,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:33:00,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 195 [2020-10-14 03:33:00,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:33:01,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 03:33:01,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:33:01,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:01,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:33:01,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 03:33:01,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:33:01,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-10-14 03:33:01,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:33:01,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:33:01,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:33:01,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:33:01,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 03:33:01,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:33:01,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2020-10-14 03:33:01,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:33:01,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:01,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:33:01,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 03:33:01,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:33:01,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 03:33:01,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:33:01,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:33:01,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:33:01,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-14 03:33:01,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:33:01,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:33:02,198 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 292 proven. 78 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-10-14 03:33:02,198 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [597028432] [2020-10-14 03:33:02,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:33:02,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:33:02,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961881881] [2020-10-14 03:33:02,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:33:02,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:33:02,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:33:02,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:33:02,201 INFO L87 Difference]: Start difference. First operand 5180 states and 6564 transitions. Second operand 8 states. [2020-10-14 03:33:15,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:33:15,296 INFO L93 Difference]: Finished difference Result 13247 states and 17266 transitions. [2020-10-14 03:33:15,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 03:33:15,298 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 457 [2020-10-14 03:33:15,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:33:15,336 INFO L225 Difference]: With dead ends: 13247 [2020-10-14 03:33:15,336 INFO L226 Difference]: Without dead ends: 8073 [2020-10-14 03:33:15,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2020-10-14 03:33:15,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8073 states. [2020-10-14 03:33:15,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8073 to 7717. [2020-10-14 03:33:15,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7717 states. [2020-10-14 03:33:15,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7717 states to 7717 states and 9625 transitions. [2020-10-14 03:33:15,566 INFO L78 Accepts]: Start accepts. Automaton has 7717 states and 9625 transitions. Word has length 457 [2020-10-14 03:33:15,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:33:15,567 INFO L479 AbstractCegarLoop]: Abstraction has 7717 states and 9625 transitions. [2020-10-14 03:33:15,567 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:33:15,567 INFO L276 IsEmpty]: Start isEmpty. Operand 7717 states and 9625 transitions. [2020-10-14 03:33:15,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2020-10-14 03:33:15,587 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:33:15,588 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-14 03:33:15,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 03:33:15,588 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:33:15,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:33:15,589 INFO L82 PathProgramCache]: Analyzing trace with hash -315271165, now seen corresponding path program 1 times [2020-10-14 03:33:15,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:33:15,590 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [606409523] [2020-10-14 03:33:15,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:33:15,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:33:15,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:15,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:20,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:20,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:33:20,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 500 [2020-10-14 03:33:20,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:33:20,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5055 [2020-10-14 03:33:20,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:33:20,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:33:20,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:33:20,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 261 [2020-10-14 03:33:20,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 03:33:20,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:33:20,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:33:20,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:33:20,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:20,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:33:20,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:33:20,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:33:20,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:33:20,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:33:20,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:33:20,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:33:20,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:33:20,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:33:20,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:33:20,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:33:20,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:33:20,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:21,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:33:21,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-10-14 03:33:21,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:33:21,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-10-14 03:33:21,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:33:21,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:33:21,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:33:21,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:33:21,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 246 [2020-10-14 03:33:21,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:33:21,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2020-10-14 03:33:21,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:33:21,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:21,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:21,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:33:21,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 03:33:21,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:33:21,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-10-14 03:33:21,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:33:21,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:33:21,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:33:21,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-14 03:33:21,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:33:21,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:33:21,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2020-10-14 03:33:21,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:33:21,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:21,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:33:21,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-14 03:33:21,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:33:21,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 03:33:21,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:33:21,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:33:21,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:33:21,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-14 03:33:21,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:33:21,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:33:21,782 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 190 proven. 4 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2020-10-14 03:33:21,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [606409523] [2020-10-14 03:33:21,783 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:33:21,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 03:33:21,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217922332] [2020-10-14 03:33:21,784 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 03:33:21,784 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:33:21,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 03:33:21,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:33:21,785 INFO L87 Difference]: Start difference. First operand 7717 states and 9625 transitions. Second operand 6 states. [2020-10-14 03:33:38,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:33:38,795 INFO L93 Difference]: Finished difference Result 21979 states and 28615 transitions. [2020-10-14 03:33:38,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:33:38,796 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 486 [2020-10-14 03:33:38,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:33:38,884 INFO L225 Difference]: With dead ends: 21979 [2020-10-14 03:33:38,884 INFO L226 Difference]: Without dead ends: 14268 [2020-10-14 03:33:38,915 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-14 03:33:38,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14268 states. [2020-10-14 03:33:39,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14268 to 13629. [2020-10-14 03:33:39,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13629 states. [2020-10-14 03:33:39,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13629 states to 13629 states and 17326 transitions. [2020-10-14 03:33:39,302 INFO L78 Accepts]: Start accepts. Automaton has 13629 states and 17326 transitions. Word has length 486 [2020-10-14 03:33:39,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:33:39,304 INFO L479 AbstractCegarLoop]: Abstraction has 13629 states and 17326 transitions. [2020-10-14 03:33:39,304 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 03:33:39,304 INFO L276 IsEmpty]: Start isEmpty. Operand 13629 states and 17326 transitions. [2020-10-14 03:33:39,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2020-10-14 03:33:39,325 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:33:39,326 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:33:39,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 03:33:39,326 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:33:39,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:33:39,327 INFO L82 PathProgramCache]: Analyzing trace with hash 1563385388, now seen corresponding path program 1 times [2020-10-14 03:33:39,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:33:39,327 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2042893518] [2020-10-14 03:33:39,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:33:39,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:33:39,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:39,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:40,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:42,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:44,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:33:44,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 529 [2020-10-14 03:33:44,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:33:44,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-14 03:33:44,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:33:44,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:33:44,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:33:44,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 366 [2020-10-14 03:33:44,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-14 03:33:44,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:33:44,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:33:44,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:33:44,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:44,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:33:44,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:33:44,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:33:44,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:33:44,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:33:44,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:33:44,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:33:44,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:33:44,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:33:44,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:33:44,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:33:44,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:33:44,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:44,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:33:44,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-14 03:33:44,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:33:44,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-14 03:33:44,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:33:44,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:33:44,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:33:44,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:33:44,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:33:44,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:33:44,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:33:44,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:33:44,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:44,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:33:44,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 03:33:44,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:33:44,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 03:33:44,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:33:44,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:33:44,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:33:44,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:33:44,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 03:33:44,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:33:44,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2020-10-14 03:33:44,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:33:44,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:45,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:33:45,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 03:33:45,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:33:45,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-14 03:33:45,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:33:45,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:33:45,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:33:45,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:33:45,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 03:33:45,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:33:45,155 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 353 proven. 2 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-10-14 03:33:45,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2042893518] [2020-10-14 03:33:45,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:33:45,155 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:33:45,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480518154] [2020-10-14 03:33:45,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:33:45,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:33:45,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:33:45,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:33:45,158 INFO L87 Difference]: Start difference. First operand 13629 states and 17326 transitions. Second operand 7 states. [2020-10-14 03:33:54,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:33:54,957 INFO L93 Difference]: Finished difference Result 34889 states and 47367 transitions. [2020-10-14 03:33:54,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:33:54,959 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 515 [2020-10-14 03:33:54,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:33:55,037 INFO L225 Difference]: With dead ends: 34889 [2020-10-14 03:33:55,037 INFO L226 Difference]: Without dead ends: 17788 [2020-10-14 03:33:55,091 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:33:55,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17788 states. [2020-10-14 03:33:55,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17788 to 16385. [2020-10-14 03:33:55,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16385 states. [2020-10-14 03:33:55,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16385 states to 16385 states and 19288 transitions. [2020-10-14 03:33:55,623 INFO L78 Accepts]: Start accepts. Automaton has 16385 states and 19288 transitions. Word has length 515 [2020-10-14 03:33:55,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:33:55,625 INFO L479 AbstractCegarLoop]: Abstraction has 16385 states and 19288 transitions. [2020-10-14 03:33:55,625 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:33:55,625 INFO L276 IsEmpty]: Start isEmpty. Operand 16385 states and 19288 transitions. [2020-10-14 03:33:55,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2020-10-14 03:33:55,648 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:33:55,648 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:33:55,649 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 03:33:55,649 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:33:55,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:33:55,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1406956064, now seen corresponding path program 1 times [2020-10-14 03:33:55,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:33:55,650 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [323440457] [2020-10-14 03:33:55,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:33:55,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:33:55,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:56,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:56,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:56,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:00,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:00,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 555 [2020-10-14 03:34:00,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:34:00,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-14 03:34:00,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:00,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:00,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:34:00,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 284 [2020-10-14 03:34:00,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 03:34:00,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:00,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:34:00,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:00,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:00,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:00,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:34:00,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:00,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:34:00,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:00,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:00,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:34:00,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:34:00,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:34:00,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:00,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:34:00,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:01,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:01,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:01,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-14 03:34:01,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:01,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-14 03:34:01,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:01,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:01,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:34:01,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:34:01,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 269 [2020-10-14 03:34:01,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:01,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:34:01,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:01,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:01,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:01,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 03:34:01,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:01,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 03:34:01,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:01,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:01,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:34:01,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:34:01,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 03:34:01,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:01,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2020-10-14 03:34:01,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:01,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:01,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:01,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 03:34:01,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:01,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 03:34:01,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:01,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:01,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:34:01,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 118 [2020-10-14 03:34:01,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:34:01,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:01,557 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 261 proven. 79 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2020-10-14 03:34:01,558 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [323440457] [2020-10-14 03:34:01,558 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:34:01,558 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:34:01,558 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161950723] [2020-10-14 03:34:01,559 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:34:01,560 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:34:01,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:34:01,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:34:01,561 INFO L87 Difference]: Start difference. First operand 16385 states and 19288 transitions. Second operand 7 states. [2020-10-14 03:34:10,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:34:10,449 INFO L93 Difference]: Finished difference Result 34044 states and 40413 transitions. [2020-10-14 03:34:10,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:34:10,451 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 541 [2020-10-14 03:34:10,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:34:10,498 INFO L225 Difference]: With dead ends: 34044 [2020-10-14 03:34:10,499 INFO L226 Difference]: Without dead ends: 17665 [2020-10-14 03:34:10,529 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:34:10,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17665 states. [2020-10-14 03:34:10,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17665 to 16415. [2020-10-14 03:34:10,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16415 states. [2020-10-14 03:34:10,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16415 states to 16415 states and 19236 transitions. [2020-10-14 03:34:10,865 INFO L78 Accepts]: Start accepts. Automaton has 16415 states and 19236 transitions. Word has length 541 [2020-10-14 03:34:10,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:34:10,866 INFO L479 AbstractCegarLoop]: Abstraction has 16415 states and 19236 transitions. [2020-10-14 03:34:10,867 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:34:10,867 INFO L276 IsEmpty]: Start isEmpty. Operand 16415 states and 19236 transitions. [2020-10-14 03:34:10,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 581 [2020-10-14 03:34:10,882 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:34:10,882 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-14 03:34:10,883 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 03:34:10,883 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:34:10,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:34:10,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1958459679, now seen corresponding path program 1 times [2020-10-14 03:34:10,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:34:10,884 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1719047008] [2020-10-14 03:34:10,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:34:11,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:11,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:11,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:11,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:11,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:13,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:16,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:16,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 594 [2020-10-14 03:34:16,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:34:16,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-10-14 03:34:16,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:16,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:16,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:34:16,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 525 [2020-10-14 03:34:16,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:34:16,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:16,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:34:16,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:16,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:16,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:16,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:34:16,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:16,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:34:16,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:16,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:16,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:34:16,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:34:16,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:34:16,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:16,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:34:16,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:16,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:16,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:16,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-14 03:34:16,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:16,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 03:34:16,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:16,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:16,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:34:16,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:34:16,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:34:16,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:16,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:34:16,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:16,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:16,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:16,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 03:34:16,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:16,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 03:34:16,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:16,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:16,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:34:16,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:34:16,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:34:16,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:16,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2020-10-14 03:34:16,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:16,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:16,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:16,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 03:34:16,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:16,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 03:34:16,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:16,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:16,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:34:16,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 121 [2020-10-14 03:34:16,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:34:16,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:16,720 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2020-10-14 03:34:16,721 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1719047008] [2020-10-14 03:34:16,721 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 03:34:16,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 03:34:16,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804689849] [2020-10-14 03:34:16,723 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:34:16,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:34:16,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:34:16,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:34:16,725 INFO L87 Difference]: Start difference. First operand 16415 states and 19236 transitions. Second operand 5 states. [2020-10-14 03:34:25,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:34:25,138 INFO L93 Difference]: Finished difference Result 33446 states and 39170 transitions. [2020-10-14 03:34:25,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:34:25,140 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 580 [2020-10-14 03:34:25,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:34:25,202 INFO L225 Difference]: With dead ends: 33446 [2020-10-14 03:34:25,203 INFO L226 Difference]: Without dead ends: 17037 [2020-10-14 03:34:25,228 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:34:25,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17037 states. [2020-10-14 03:34:25,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17037 to 16413. [2020-10-14 03:34:25,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16413 states. [2020-10-14 03:34:25,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16413 states to 16413 states and 19224 transitions. [2020-10-14 03:34:25,542 INFO L78 Accepts]: Start accepts. Automaton has 16413 states and 19224 transitions. Word has length 580 [2020-10-14 03:34:25,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:34:25,544 INFO L479 AbstractCegarLoop]: Abstraction has 16413 states and 19224 transitions. [2020-10-14 03:34:25,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:34:25,544 INFO L276 IsEmpty]: Start isEmpty. Operand 16413 states and 19224 transitions. [2020-10-14 03:34:25,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 607 [2020-10-14 03:34:25,563 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:34:25,564 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:34:25,565 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 03:34:25,565 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:34:25,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:34:25,566 INFO L82 PathProgramCache]: Analyzing trace with hash 135569239, now seen corresponding path program 1 times [2020-10-14 03:34:25,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:34:25,567 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1368177152] [2020-10-14 03:34:25,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:34:25,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:25,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:26,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:26,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:26,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:30,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:30,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:30,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:30,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 620 [2020-10-14 03:34:30,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:34:30,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5070 [2020-10-14 03:34:30,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:30,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:30,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:34:30,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 551 [2020-10-14 03:34:30,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:34:30,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:30,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:34:30,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:30,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:30,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:30,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:34:30,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:30,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:34:30,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:30,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:30,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:34:30,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:34:30,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:34:30,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:30,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:34:30,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:30,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:31,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:31,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-10-14 03:34:31,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:31,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 03:34:31,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:31,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:31,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:34:31,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:34:31,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:34:31,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:31,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2020-10-14 03:34:31,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:31,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:31,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:31,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 03:34:31,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:31,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 03:34:31,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:31,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:31,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:34:31,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:34:31,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:34:31,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:31,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2020-10-14 03:34:31,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:31,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:31,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:31,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 03:34:31,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:31,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-14 03:34:31,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:31,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:31,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:34:31,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 155 [2020-10-14 03:34:31,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:34:31,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:31,513 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2020-10-14 03:34:31,514 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1368177152] [2020-10-14 03:34:31,514 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 03:34:31,515 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 03:34:31,515 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252601517] [2020-10-14 03:34:31,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:34:31,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:34:31,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:34:31,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:34:31,516 INFO L87 Difference]: Start difference. First operand 16413 states and 19224 transitions. Second operand 5 states. [2020-10-14 03:34:38,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:34:38,749 INFO L93 Difference]: Finished difference Result 34981 states and 40857 transitions. [2020-10-14 03:34:38,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:34:38,751 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 606 [2020-10-14 03:34:38,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:34:38,814 INFO L225 Difference]: With dead ends: 34981 [2020-10-14 03:34:38,814 INFO L226 Difference]: Without dead ends: 18574 [2020-10-14 03:34:38,841 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:34:38,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18574 states. [2020-10-14 03:34:39,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18574 to 17329. [2020-10-14 03:34:39,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17329 states. [2020-10-14 03:34:39,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17329 states to 17329 states and 19968 transitions. [2020-10-14 03:34:39,160 INFO L78 Accepts]: Start accepts. Automaton has 17329 states and 19968 transitions. Word has length 606 [2020-10-14 03:34:39,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:34:39,161 INFO L479 AbstractCegarLoop]: Abstraction has 17329 states and 19968 transitions. [2020-10-14 03:34:39,161 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:34:39,161 INFO L276 IsEmpty]: Start isEmpty. Operand 17329 states and 19968 transitions. [2020-10-14 03:34:39,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 633 [2020-10-14 03:34:39,186 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:34:39,186 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:34:39,187 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 03:34:39,187 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:34:39,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:34:39,188 INFO L82 PathProgramCache]: Analyzing trace with hash 264744213, now seen corresponding path program 1 times [2020-10-14 03:34:39,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:34:39,189 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1316765627] [2020-10-14 03:34:39,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:34:39,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:39,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:39,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:39,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:42,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:44,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:44,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 648 [2020-10-14 03:34:44,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:34:44,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-14 03:34:44,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:44,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:44,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:34:44,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 467 [2020-10-14 03:34:44,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-14 03:34:44,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:44,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:34:44,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:44,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:44,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:44,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:34:44,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:44,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:34:44,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:44,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:44,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:34:44,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:34:44,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:34:44,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:44,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:34:44,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:44,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:44,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:44,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-14 03:34:44,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:44,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 03:34:44,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:44,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:44,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:34:44,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:34:44,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:34:44,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:44,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 03:34:44,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:44,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:44,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:44,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-14 03:34:44,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:44,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 03:34:44,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:44,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:44,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:34:44,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:34:44,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:34:44,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:44,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2020-10-14 03:34:44,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:44,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:44,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:44,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-14 03:34:44,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:44,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-10-14 03:34:44,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:44,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:44,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:34:44,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:34:44,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 03:34:44,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:44,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 461 [2020-10-14 03:34:44,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:44,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:44,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:44,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 03:34:44,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:44,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 03:34:44,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:44,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:44,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:34:44,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:34:44,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 03:34:44,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:45,139 INFO L134 CoverageAnalysis]: Checked inductivity of 887 backedges. 550 proven. 2 refuted. 0 times theorem prover too weak. 335 trivial. 0 not checked. [2020-10-14 03:34:45,140 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1316765627] [2020-10-14 03:34:45,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:34:45,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:34:45,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064649099] [2020-10-14 03:34:45,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:34:45,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:34:45,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:34:45,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:34:45,141 INFO L87 Difference]: Start difference. First operand 17329 states and 19968 transitions. Second operand 7 states. [2020-10-14 03:34:57,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:34:57,186 INFO L93 Difference]: Finished difference Result 41543 states and 48422 transitions. [2020-10-14 03:34:57,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:34:57,188 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 632 [2020-10-14 03:34:57,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:34:57,234 INFO L225 Difference]: With dead ends: 41543 [2020-10-14 03:34:57,235 INFO L226 Difference]: Without dead ends: 21425 [2020-10-14 03:34:57,263 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 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 03:34:57,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21425 states. [2020-10-14 03:34:57,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21425 to 21035. [2020-10-14 03:34:57,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21035 states. [2020-10-14 03:34:57,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21035 states to 21035 states and 23980 transitions. [2020-10-14 03:34:57,653 INFO L78 Accepts]: Start accepts. Automaton has 21035 states and 23980 transitions. Word has length 632 [2020-10-14 03:34:57,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:34:57,654 INFO L479 AbstractCegarLoop]: Abstraction has 21035 states and 23980 transitions. [2020-10-14 03:34:57,654 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:34:57,654 INFO L276 IsEmpty]: Start isEmpty. Operand 21035 states and 23980 transitions. [2020-10-14 03:34:57,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 656 [2020-10-14 03:34:57,673 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:34:57,675 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:34:57,675 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 03:34:57,676 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:34:57,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:34:57,676 INFO L82 PathProgramCache]: Analyzing trace with hash -726790138, now seen corresponding path program 1 times [2020-10-14 03:34:57,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:34:57,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [683156536] [2020-10-14 03:34:57,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:34:57,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:57,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:58,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:59,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:59,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:59,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:59,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:02,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:02,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 671 [2020-10-14 03:35:02,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:35:02,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-14 03:35:02,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:02,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:02,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:35:02,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 489 [2020-10-14 03:35:02,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 03:35:02,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:35:02,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:35:02,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:35:02,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:02,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:02,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:35:02,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:35:02,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:35:02,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:02,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:02,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:35:02,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:35:02,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:35:02,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:35:02,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:35:03,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:35:03,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:03,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:03,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-14 03:35:03,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:35:03,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 03:35:03,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:03,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:03,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:35:03,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:35:03,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:35:03,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:35:03,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:35:03,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:35:03,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:03,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:03,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 03:35:03,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:35:03,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 03:35:03,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:03,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:03,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:35:03,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:35:03,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:35:03,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:35:03,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2020-10-14 03:35:03,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:35:03,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:03,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:03,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 03:35:03,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:35:03,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 03:35:03,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:03,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:03,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:35:03,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:35:03,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 03:35:03,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:35:03,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2020-10-14 03:35:03,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:35:03,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:03,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:03,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 03:35:03,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:35:03,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 03:35:03,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:03,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:03,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:35:03,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:35:03,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 03:35:03,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:35:03,570 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 553 proven. 2 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2020-10-14 03:35:03,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [683156536] [2020-10-14 03:35:03,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:35:03,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:35:03,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994437308] [2020-10-14 03:35:03,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:35:03,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:35:03,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:35:03,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:35:03,572 INFO L87 Difference]: Start difference. First operand 21035 states and 23980 transitions. Second operand 7 states. [2020-10-14 03:35:13,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:35:13,279 INFO L93 Difference]: Finished difference Result 42522 states and 47789 transitions. [2020-10-14 03:35:13,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:35:13,281 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 655 [2020-10-14 03:35:13,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:35:13,320 INFO L225 Difference]: With dead ends: 42522 [2020-10-14 03:35:13,321 INFO L226 Difference]: Without dead ends: 20249 [2020-10-14 03:35:13,350 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 03:35:13,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20249 states. [2020-10-14 03:35:13,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20249 to 17791. [2020-10-14 03:35:13,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17791 states. [2020-10-14 03:35:13,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17791 states to 17791 states and 19342 transitions. [2020-10-14 03:35:13,650 INFO L78 Accepts]: Start accepts. Automaton has 17791 states and 19342 transitions. Word has length 655 [2020-10-14 03:35:13,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:35:13,651 INFO L479 AbstractCegarLoop]: Abstraction has 17791 states and 19342 transitions. [2020-10-14 03:35:13,651 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:35:13,651 INFO L276 IsEmpty]: Start isEmpty. Operand 17791 states and 19342 transitions. [2020-10-14 03:35:13,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 710 [2020-10-14 03:35:13,671 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:35:13,672 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:35:13,672 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 03:35:13,672 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:35:13,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:35:13,673 INFO L82 PathProgramCache]: Analyzing trace with hash -834732958, now seen corresponding path program 1 times [2020-10-14 03:35:13,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:35:13,673 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [471312730] [2020-10-14 03:35:13,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:35:13,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:35:13,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:14,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:14,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:17,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:18,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:18,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:18,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 723 [2020-10-14 03:35:18,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:35:18,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-14 03:35:18,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:18,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:18,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:35:18,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 654 [2020-10-14 03:35:18,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:35:18,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:35:18,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:35:18,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:35:18,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:18,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:18,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:35:18,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:35:18,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:35:18,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:18,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:18,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:35:18,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:35:18,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:35:18,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:35:18,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:35:18,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:35:18,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:18,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:18,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-14 03:35:18,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:35:18,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 03:35:19,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:19,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:19,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:35:19,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:35:19,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:35:19,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:35:19,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:35:19,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:35:19,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:19,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:19,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 03:35:19,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:35:19,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 03:35:19,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:19,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:19,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:35:19,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:35:19,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:35:19,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:35:19,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2020-10-14 03:35:19,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:35:19,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:19,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:19,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-10-14 03:35:19,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:35:19,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-14 03:35:19,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:19,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:19,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:35:19,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 250 [2020-10-14 03:35:19,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:35:19,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:35:19,718 INFO L134 CoverageAnalysis]: Checked inductivity of 657 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 471 trivial. 0 not checked. [2020-10-14 03:35:19,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [471312730] [2020-10-14 03:35:19,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 03:35:19,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 03:35:19,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699134879] [2020-10-14 03:35:19,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:35:19,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:35:19,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:35:19,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:35:19,720 INFO L87 Difference]: Start difference. First operand 17791 states and 19342 transitions. Second operand 5 states. [2020-10-14 03:35:27,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:35:27,063 INFO L93 Difference]: Finished difference Result 34945 states and 37943 transitions. [2020-10-14 03:35:27,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:35:27,065 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 709 [2020-10-14 03:35:27,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:35:27,089 INFO L225 Difference]: With dead ends: 34945 [2020-10-14 03:35:27,090 INFO L226 Difference]: Without dead ends: 17467 [2020-10-14 03:35:27,107 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:35:27,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17467 states. [2020-10-14 03:35:27,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17467 to 17467. [2020-10-14 03:35:27,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17467 states. [2020-10-14 03:35:27,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17467 states to 17467 states and 18598 transitions. [2020-10-14 03:35:27,356 INFO L78 Accepts]: Start accepts. Automaton has 17467 states and 18598 transitions. Word has length 709 [2020-10-14 03:35:27,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:35:27,357 INFO L479 AbstractCegarLoop]: Abstraction has 17467 states and 18598 transitions. [2020-10-14 03:35:27,357 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:35:27,357 INFO L276 IsEmpty]: Start isEmpty. Operand 17467 states and 18598 transitions. [2020-10-14 03:35:27,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 761 [2020-10-14 03:35:27,382 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:35:27,382 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:35:27,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 03:35:27,383 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:35:27,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:35:27,383 INFO L82 PathProgramCache]: Analyzing trace with hash -1575945019, now seen corresponding path program 1 times [2020-10-14 03:35:27,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:35:27,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [862970793] [2020-10-14 03:35:27,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:35:27,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:35:27,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:27,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:29,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:31,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:32,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:32,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 776 [2020-10-14 03:35:32,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:35:32,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-14 03:35:32,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:32,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:32,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:35:32,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 380 [2020-10-14 03:35:32,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 03:35:32,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:35:32,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:35:32,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:35:32,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:32,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:32,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:35:32,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:35:32,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:35:32,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:32,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:32,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:35:32,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:35:32,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:35:32,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:35:32,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:35:32,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:35:32,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:32,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:32,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-14 03:35:32,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:35:32,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 03:35:32,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:32,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:32,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:35:32,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:35:32,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:35:32,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:35:32,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 03:35:32,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:35:32,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:32,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:32,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-14 03:35:32,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:35:32,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-14 03:35:32,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:32,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:32,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:35:32,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:35:32,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-14 03:35:32,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:35:32,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2020-10-14 03:35:32,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:35:32,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:33,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:33,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 03:35:33,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:35:33,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-10-14 03:35:33,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:33,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:33,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:35:33,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:35:33,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 03:35:33,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:35:33,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2020-10-14 03:35:33,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:35:33,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:33,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:33,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 246 [2020-10-14 03:35:33,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:35:33,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-14 03:35:33,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:33,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:33,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:35:33,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 243 [2020-10-14 03:35:33,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:35:33,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:35:33,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1016 backedges. 407 proven. 79 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2020-10-14 03:35:33,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [862970793] [2020-10-14 03:35:33,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:35:33,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:35:33,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899193906] [2020-10-14 03:35:33,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:35:33,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:35:33,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:35:33,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:35:33,671 INFO L87 Difference]: Start difference. First operand 17467 states and 18598 transitions. Second operand 7 states.