/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_label52.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 03:35:47,718 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 03:35:47,721 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 03:35:47,764 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 03:35:47,765 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 03:35:47,775 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 03:35:47,777 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 03:35:47,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 03:35:47,780 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 03:35:47,781 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 03:35:47,782 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 03:35:47,783 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 03:35:47,783 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 03:35:47,786 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 03:35:47,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 03:35:47,789 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 03:35:47,790 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 03:35:47,792 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 03:35:47,795 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 03:35:47,797 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 03:35:47,800 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 03:35:47,801 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 03:35:47,803 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 03:35:47,803 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 03:35:47,810 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 03:35:47,811 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 03:35:47,811 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 03:35:47,814 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 03:35:47,814 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 03:35:47,814 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 03:35:47,815 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 03:35:47,817 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 03:35:47,817 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 03:35:47,818 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 03:35:47,819 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 03:35:47,819 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 03:35:47,820 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 03:35:47,820 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 03:35:47,820 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 03:35:47,821 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 03:35:47,821 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 03:35:47,822 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 03:35:47,844 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 03:35:47,844 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 03:35:47,845 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 03:35:47,845 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 03:35:47,845 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 03:35:47,846 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 03:35:47,846 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 03:35:47,846 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 03:35:47,846 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 03:35:47,846 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 03:35:47,847 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 03:35:47,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 03:35:47,847 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 03:35:47,847 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 03:35:47,847 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 03:35:47,847 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 03:35:47,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 03:35:47,848 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 03:35:47,848 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 03:35:47,848 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 03:35:47,848 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 03:35:47,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 03:35:47,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 03:35:47,849 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 03:35:47,849 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 03:35:47,849 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 03:35:47,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 03:35:47,850 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 03:35:47,850 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 03:35:47,850 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 03:35:48,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 03:35:48,137 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 03:35:48,140 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 03:35:48,141 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 03:35:48,142 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 03:35:48,142 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label52.c [2020-10-14 03:35:48,200 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/74d52cb31/b406f3bbb1994ed390419adacab4ac2f/FLAG559ab1480 [2020-10-14 03:35:48,804 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 03:35:48,805 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem15_label52.c [2020-10-14 03:35:48,826 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/74d52cb31/b406f3bbb1994ed390419adacab4ac2f/FLAG559ab1480 [2020-10-14 03:35:49,019 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/74d52cb31/b406f3bbb1994ed390419adacab4ac2f [2020-10-14 03:35:49,030 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 03:35:49,032 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 03:35:49,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 03:35:49,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 03:35:49,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 03:35:49,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:35:49" (1/1) ... [2020-10-14 03:35:49,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4137acd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:35:49, skipping insertion in model container [2020-10-14 03:35:49,040 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:35:49" (1/1) ... [2020-10-14 03:35:49,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 03:35:49,130 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 03:35:50,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:35:50,196 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 03:35:50,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:35:50,489 INFO L208 MainTranslator]: Completed translation [2020-10-14 03:35:50,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:35:50 WrapperNode [2020-10-14 03:35:50,490 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 03:35:50,491 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 03:35:50,491 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 03:35:50,491 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 03:35:50,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:35:50" (1/1) ... [2020-10-14 03:35:50,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:35:50" (1/1) ... [2020-10-14 03:35:50,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:35:50" (1/1) ... [2020-10-14 03:35:50,565 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:35:50" (1/1) ... [2020-10-14 03:35:50,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:35:50" (1/1) ... [2020-10-14 03:35:50,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:35:50" (1/1) ... [2020-10-14 03:35:50,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:35:50" (1/1) ... [2020-10-14 03:35:50,721 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 03:35:50,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 03:35:50,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 03:35:50,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 03:35:50,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:35:50" (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 03:35:50,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 03:35:50,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 03:35:50,787 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 03:35:50,788 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 03:35:50,788 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 03:35:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 03:35:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 03:35:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 03:35:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 03:35:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 03:35:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 03:35:50,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 03:35:50,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 03:35:56,209 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 03:35:56,210 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 03:35:56,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:35:56 BoogieIcfgContainer [2020-10-14 03:35:56,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 03:35:56,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 03:35:56,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 03:35:56,230 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 03:35:56,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:35:49" (1/3) ... [2020-10-14 03:35:56,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18aff648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:35:56, skipping insertion in model container [2020-10-14 03:35:56,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:35:50" (2/3) ... [2020-10-14 03:35:56,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18aff648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:35:56, skipping insertion in model container [2020-10-14 03:35:56,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:35:56" (3/3) ... [2020-10-14 03:35:56,234 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem15_label52.c [2020-10-14 03:35:56,245 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 03:35:56,257 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 03:35:56,270 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 03:35:56,295 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 03:35:56,295 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 03:35:56,295 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 03:35:56,295 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 03:35:56,295 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 03:35:56,296 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 03:35:56,296 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 03:35:56,296 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 03:35:56,322 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states. [2020-10-14 03:35:56,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-14 03:35:56,330 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:35:56,331 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:35:56,332 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:35:56,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:35:56,338 INFO L82 PathProgramCache]: Analyzing trace with hash -1937912579, now seen corresponding path program 1 times [2020-10-14 03:35:56,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:35:56,347 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [419726660] [2020-10-14 03:35:56,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:35:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:35:56,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:56,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:56,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 03:35:56,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:35:56,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 332 [2020-10-14 03:35:56,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:56,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:56,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 03:35:56,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 03:35:56,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 03:35:56,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 03:35:56,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:35:56,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:35:57,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:57,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:57,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:35:57,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:35:57,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 03:35:57,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:57,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:57,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:35:57,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:35:57,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:35:57,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:35:57,034 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 03:35:57,035 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [419726660] [2020-10-14 03:35:57,037 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 03:35:57,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 03:35:57,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525421590] [2020-10-14 03:35:57,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 03:35:57,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:35:57,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 03:35:57,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 03:35:57,061 INFO L87 Difference]: Start difference. First operand 437 states. Second operand 4 states. [2020-10-14 03:36:02,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:36:02,472 INFO L93 Difference]: Finished difference Result 1199 states and 2164 transitions. [2020-10-14 03:36:02,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:36:02,481 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 45 [2020-10-14 03:36:02,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:36:02,507 INFO L225 Difference]: With dead ends: 1199 [2020-10-14 03:36:02,508 INFO L226 Difference]: Without dead ends: 697 [2020-10-14 03:36:02,518 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 03:36:02,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2020-10-14 03:36:02,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 691. [2020-10-14 03:36:02,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2020-10-14 03:36:02,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 1012 transitions. [2020-10-14 03:36:02,613 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 1012 transitions. Word has length 45 [2020-10-14 03:36:02,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:36:02,613 INFO L479 AbstractCegarLoop]: Abstraction has 691 states and 1012 transitions. [2020-10-14 03:36:02,613 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 03:36:02,614 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 1012 transitions. [2020-10-14 03:36:02,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-14 03:36:02,619 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:36:02,620 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:36:02,620 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 03:36:02,620 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:36:02,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:36:02,621 INFO L82 PathProgramCache]: Analyzing trace with hash -954169670, now seen corresponding path program 1 times [2020-10-14 03:36:02,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:36:02,621 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [750560006] [2020-10-14 03:36:02,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:36:02,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:36:02,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:36:02,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:36:03,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:36:03,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-14 03:36:03,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:36:03,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1206 [2020-10-14 03:36:03,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:36:03,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:36:03,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:36:03,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-14 03:36:03,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-14 03:36:03,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:36:03,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:36:03,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:36:03,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:36:03,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:36:03,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:36:03,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:36:03,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 03:36:03,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:36:03,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:36:03,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:36:03,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:36:03,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:36:03,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:36:03,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:36:04,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:36:04,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:36:04,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:36:04,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:36:04,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:36:04,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-14 03:36:04,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:36:04,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:36:04,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:36:04,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:36:04,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 03:36:04,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-14 03:36:04,192 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:36:04,193 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [750560006] [2020-10-14 03:36:04,193 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:36:04,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 03:36:04,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995716929] [2020-10-14 03:36:04,196 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 03:36:04,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:36:04,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 03:36:04,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:36:04,197 INFO L87 Difference]: Start difference. First operand 691 states and 1012 transitions. Second operand 6 states. [2020-10-14 03:36:15,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:36:15,890 INFO L93 Difference]: Finished difference Result 2635 states and 3904 transitions. [2020-10-14 03:36:15,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 03:36:15,891 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 114 [2020-10-14 03:36:15,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:36:15,903 INFO L225 Difference]: With dead ends: 2635 [2020-10-14 03:36:15,903 INFO L226 Difference]: Without dead ends: 1950 [2020-10-14 03:36:15,906 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 03:36:15,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states. [2020-10-14 03:36:15,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1944. [2020-10-14 03:36:15,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1944 states. [2020-10-14 03:36:15,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1944 states to 1944 states and 2601 transitions. [2020-10-14 03:36:15,970 INFO L78 Accepts]: Start accepts. Automaton has 1944 states and 2601 transitions. Word has length 114 [2020-10-14 03:36:15,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:36:15,970 INFO L479 AbstractCegarLoop]: Abstraction has 1944 states and 2601 transitions. [2020-10-14 03:36:15,971 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 03:36:15,971 INFO L276 IsEmpty]: Start isEmpty. Operand 1944 states and 2601 transitions. [2020-10-14 03:36:15,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2020-10-14 03:36:15,980 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:36:15,981 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:15,981 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 03:36:15,981 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:36:15,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:36:15,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1815324654, now seen corresponding path program 1 times [2020-10-14 03:36:15,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:36:15,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [879685353] [2020-10-14 03:36:15,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:36:16,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:36:16,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:36:16,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:36:16,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:36:16,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:36:17,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:36:17,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:36:19,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:36:20,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:36:21,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:36:21,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 309 [2020-10-14 03:36:21,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 03:36:21,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 03:36:21,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:36:21,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:36:21,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:36:21,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 262 [2020-10-14 03:36:21,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:36:21,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:36:21,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:36:21,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:36:21,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:36:21,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:36:21,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:36:21,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:36:21,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:36:21,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:36:21,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:36:21,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:36:21,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:36:21,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:36:21,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:36:21,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:36:21,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:36:21,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:36:21,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:36:21,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 03:36:21,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:36:21,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 03:36:21,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:36:21,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:36:21,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:36:21,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:36:21,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:36:21,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:36:21,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 03:36:21,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:36:21,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:36:21,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:36:21,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-14 03:36:21,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:36:21,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-14 03:36:21,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:36:21,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:36:21,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:36:21,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-10-14 03:36:21,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:36:21,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:36:21,574 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2020-10-14 03:36:21,575 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [879685353] [2020-10-14 03:36:21,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 03:36:21,576 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 03:36:21,576 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375906371] [2020-10-14 03:36:21,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:36:21,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:36:21,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:36:21,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:36:21,581 INFO L87 Difference]: Start difference. First operand 1944 states and 2601 transitions. Second operand 5 states. [2020-10-14 03:36:29,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:36:29,158 INFO L93 Difference]: Finished difference Result 4194 states and 5728 transitions. [2020-10-14 03:36:29,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:36:29,161 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 297 [2020-10-14 03:36:29,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:36:29,178 INFO L225 Difference]: With dead ends: 4194 [2020-10-14 03:36:29,179 INFO L226 Difference]: Without dead ends: 2256 [2020-10-14 03:36:29,184 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 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 03:36:29,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2256 states. [2020-10-14 03:36:29,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2256 to 2252. [2020-10-14 03:36:29,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2252 states. [2020-10-14 03:36:29,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2252 states to 2252 states and 3117 transitions. [2020-10-14 03:36:29,251 INFO L78 Accepts]: Start accepts. Automaton has 2252 states and 3117 transitions. Word has length 297 [2020-10-14 03:36:29,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:36:29,255 INFO L479 AbstractCegarLoop]: Abstraction has 2252 states and 3117 transitions. [2020-10-14 03:36:29,255 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:36:29,255 INFO L276 IsEmpty]: Start isEmpty. Operand 2252 states and 3117 transitions. [2020-10-14 03:36:29,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2020-10-14 03:36:29,260 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:36:29,261 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:36:29,261 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 03:36:29,261 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:36:29,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:36:29,261 INFO L82 PathProgramCache]: Analyzing trace with hash -320030006, now seen corresponding path program 1 times [2020-10-14 03:36:29,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:36:29,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2017079630] [2020-10-14 03:36:29,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:36:29,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:36:29,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:36:29,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:36:29,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:36:30,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:36:30,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:36:32,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:36:34,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:36:34,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 313 [2020-10-14 03:36:34,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:36:34,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-14 03:36:34,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:36:34,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:36:34,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:36:34,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-14 03:36:34,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 03:36:34,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:36:34,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:36:34,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:36:34,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:36:34,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:36:34,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:36:34,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:36:34,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:36:34,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:36:34,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:36:34,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:36:34,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:36:34,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:36:34,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:36:34,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:36:34,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:36:34,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:36:34,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:36:34,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 03:36:34,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:36:34,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 03:36:34,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:36:34,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:36:34,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:36:34,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:36:34,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:36:34,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:36:34,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 03:36:34,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:36:34,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:36:34,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:36:34,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 03:36:34,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:36:34,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 03:36:34,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:36:34,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:36:34,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:36:34,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:36:34,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 03:36:34,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:36:34,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-14 03:36:34,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:36:34,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:36:34,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:36:34,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 03:36:34,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:36:34,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-14 03:36:34,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:36:34,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:36:34,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:36:34,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:36:34,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 03:36:34,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:36:35,049 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 272 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2020-10-14 03:36:35,050 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2017079630] [2020-10-14 03:36:35,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:36:35,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:36:35,051 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843747287] [2020-10-14 03:36:35,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:36:35,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:36:35,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:36:35,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:36:35,053 INFO L87 Difference]: Start difference. First operand 2252 states and 3117 transitions. Second operand 7 states. [2020-10-14 03:36:46,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:36:46,253 INFO L93 Difference]: Finished difference Result 6989 states and 9945 transitions. [2020-10-14 03:36:46,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:36:46,259 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 299 [2020-10-14 03:36:46,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:36:46,283 INFO L225 Difference]: With dead ends: 6989 [2020-10-14 03:36:46,284 INFO L226 Difference]: Without dead ends: 4743 [2020-10-14 03:36:46,290 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 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 03:36:46,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4743 states. [2020-10-14 03:36:46,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4743 to 4436. [2020-10-14 03:36:46,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4436 states. [2020-10-14 03:36:46,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4436 states to 4436 states and 5779 transitions. [2020-10-14 03:36:46,426 INFO L78 Accepts]: Start accepts. Automaton has 4436 states and 5779 transitions. Word has length 299 [2020-10-14 03:36:46,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:36:46,427 INFO L479 AbstractCegarLoop]: Abstraction has 4436 states and 5779 transitions. [2020-10-14 03:36:46,427 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:36:46,427 INFO L276 IsEmpty]: Start isEmpty. Operand 4436 states and 5779 transitions. [2020-10-14 03:36:46,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2020-10-14 03:36:46,437 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:36:46,438 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:36:46,438 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 03:36:46,438 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:36:46,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:36:46,439 INFO L82 PathProgramCache]: Analyzing trace with hash 294399443, now seen corresponding path program 1 times [2020-10-14 03:36:46,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:36:46,440 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [367345704] [2020-10-14 03:36:46,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:36:46,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:36:46,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:36:46,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:36:46,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:36:51,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:36:51,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:36:51,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 437 [2020-10-14 03:36:51,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:36:51,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 03:36:51,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:36:51,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:36:51,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:36:51,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 292 [2020-10-14 03:36:51,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-14 03:36:51,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:36:51,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:36:51,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:36:51,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:36:51,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:36:51,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:36:51,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:36:51,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 03:36:51,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:36:51,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:36:51,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:36:51,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:36:51,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:36:51,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:36:51,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:36:51,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:36:51,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:36:51,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:36:51,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-14 03:36:51,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:36:51,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 03:36:51,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:36:51,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:36:51,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:36:51,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:36:51,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:36:51,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:36:51,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 03:36:51,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:36:51,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:36:52,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:36:52,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 03:36:52,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:36:52,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 03:36:52,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:36:52,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:36:52,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:36:52,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:36:52,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 03:36:52,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:36:52,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2020-10-14 03:36:52,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:36:52,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:36:52,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:36:52,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 03:36:52,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:36:52,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-14 03:36:52,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:36:52,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:36:52,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:36:52,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:36:52,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-14 03:36:52,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:36:52,715 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 291 proven. 2 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-10-14 03:36:52,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [367345704] [2020-10-14 03:36:52,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:36:52,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:36:52,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757725437] [2020-10-14 03:36:52,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:36:52,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:36:52,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:36:52,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:36:52,719 INFO L87 Difference]: Start difference. First operand 4436 states and 5779 transitions. Second operand 7 states. [2020-10-14 03:37:03,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:37:03,981 INFO L93 Difference]: Finished difference Result 10505 states and 14290 transitions. [2020-10-14 03:37:03,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:37:03,982 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 423 [2020-10-14 03:37:03,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:37:04,018 INFO L225 Difference]: With dead ends: 10505 [2020-10-14 03:37:04,019 INFO L226 Difference]: Without dead ends: 6384 [2020-10-14 03:37:04,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 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 03:37:04,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6384 states. [2020-10-14 03:37:04,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6384 to 5430. [2020-10-14 03:37:04,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5430 states. [2020-10-14 03:37:04,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5430 states to 5430 states and 7026 transitions. [2020-10-14 03:37:04,184 INFO L78 Accepts]: Start accepts. Automaton has 5430 states and 7026 transitions. Word has length 423 [2020-10-14 03:37:04,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:37:04,185 INFO L479 AbstractCegarLoop]: Abstraction has 5430 states and 7026 transitions. [2020-10-14 03:37:04,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:37:04,185 INFO L276 IsEmpty]: Start isEmpty. Operand 5430 states and 7026 transitions. [2020-10-14 03:37:04,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2020-10-14 03:37:04,198 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:37:04,199 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 03:37:04,199 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 03:37:04,199 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:37:04,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:37:04,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1681993343, now seen corresponding path program 1 times [2020-10-14 03:37:04,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:37:04,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [611534673] [2020-10-14 03:37:04,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:37:04,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:37:04,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:37:04,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:37:04,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:37:09,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:37:09,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:37:09,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 443 [2020-10-14 03:37:09,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:37:09,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 03:37:09,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:37:09,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:37:09,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:37:09,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 297 [2020-10-14 03:37:09,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-14 03:37:09,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:37:09,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:37:09,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:37:09,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:37:09,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:37:09,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:37:09,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:37:09,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:37:09,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:37:09,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:37:09,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:37:09,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:37:09,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:37:09,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:37:09,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:37:09,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:37:09,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:37:09,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:37:09,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-14 03:37:09,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:37:09,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 03:37:09,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:37:09,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:37:09,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:37:09,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:37:09,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:37:09,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:37:09,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 03:37:09,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:37:09,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:37:09,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:37:09,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-14 03:37:09,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:37:09,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 03:37:09,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:37:09,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:37:09,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:37:09,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:37:09,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 03:37:09,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:37:09,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2020-10-14 03:37:09,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:37:09,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:37:09,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:37:09,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-14 03:37:09,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:37:09,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-14 03:37:09,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:37:09,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:37:09,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:37:09,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:37:09,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-14 03:37:09,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:37:10,034 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 295 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-14 03:37:10,034 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [611534673] [2020-10-14 03:37:10,035 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:37:10,035 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:37:10,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387906006] [2020-10-14 03:37:10,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:37:10,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:37:10,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:37:10,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:37:10,037 INFO L87 Difference]: Start difference. First operand 5430 states and 7026 transitions. Second operand 7 states. [2020-10-14 03:37:19,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:37:19,797 INFO L93 Difference]: Finished difference Result 12837 states and 17094 transitions. [2020-10-14 03:37:19,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:37:19,798 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 429 [2020-10-14 03:37:19,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:37:19,834 INFO L225 Difference]: With dead ends: 12837 [2020-10-14 03:37:19,835 INFO L226 Difference]: Without dead ends: 7417 [2020-10-14 03:37:19,851 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 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 03:37:19,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7417 states. [2020-10-14 03:37:20,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7417 to 7362. [2020-10-14 03:37:20,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7362 states. [2020-10-14 03:37:20,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7362 states to 7362 states and 9507 transitions. [2020-10-14 03:37:20,073 INFO L78 Accepts]: Start accepts. Automaton has 7362 states and 9507 transitions. Word has length 429 [2020-10-14 03:37:20,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:37:20,073 INFO L479 AbstractCegarLoop]: Abstraction has 7362 states and 9507 transitions. [2020-10-14 03:37:20,074 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:37:20,074 INFO L276 IsEmpty]: Start isEmpty. Operand 7362 states and 9507 transitions. [2020-10-14 03:37:20,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2020-10-14 03:37:20,086 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:37:20,086 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:37:20,086 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 03:37:20,087 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:37:20,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:37:20,087 INFO L82 PathProgramCache]: Analyzing trace with hash -24341420, now seen corresponding path program 1 times [2020-10-14 03:37:20,087 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:37:20,088 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [755274704] [2020-10-14 03:37:20,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:37:20,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:37:20,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:37:20,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:37:21,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:37:22,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:37:25,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:37:25,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 454 [2020-10-14 03:37:25,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:37:25,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5070 [2020-10-14 03:37:25,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:37:25,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:37:25,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:37:25,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 210 [2020-10-14 03:37:25,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 03:37:25,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:37:25,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:37:25,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:37:25,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:37:25,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:37:25,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:37:25,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:37:25,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:37:25,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:37:25,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:37:25,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:37:25,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:37:25,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:37:25,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:37:25,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:37:25,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:37:25,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:37:25,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:37:25,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-14 03:37:25,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:37:25,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-14 03:37:25,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:37:25,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:37:25,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:37:25,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:37:25,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 195 [2020-10-14 03:37:25,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:37:25,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 03:37:25,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:37:25,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:37:25,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:37:25,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 03:37:25,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:37:25,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 03:37:25,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:37:25,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:37:25,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:37:25,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:37:25,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 03:37:25,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:37:25,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2020-10-14 03:37:25,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:37:25,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:37:25,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:37:25,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:37:25,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:37:25,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 03:37:25,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:37:25,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:37:25,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:37:25,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 03:37:25,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:37:25,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:37:26,036 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 195 proven. 79 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-14 03:37:26,037 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [755274704] [2020-10-14 03:37:26,037 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:37:26,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:37:26,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660353137] [2020-10-14 03:37:26,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:37:26,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:37:26,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:37:26,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:37:26,040 INFO L87 Difference]: Start difference. First operand 7362 states and 9507 transitions. Second operand 7 states. [2020-10-14 03:37:34,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:37:34,945 INFO L93 Difference]: Finished difference Result 16665 states and 22004 transitions. [2020-10-14 03:37:34,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:37:34,947 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 440 [2020-10-14 03:37:34,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:37:34,998 INFO L225 Difference]: With dead ends: 16665 [2020-10-14 03:37:34,999 INFO L226 Difference]: Without dead ends: 9313 [2020-10-14 03:37:35,022 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:37:35,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9313 states. [2020-10-14 03:37:35,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9313 to 9281. [2020-10-14 03:37:35,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9281 states. [2020-10-14 03:37:35,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9281 states to 9281 states and 12141 transitions. [2020-10-14 03:37:35,331 INFO L78 Accepts]: Start accepts. Automaton has 9281 states and 12141 transitions. Word has length 440 [2020-10-14 03:37:35,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:37:35,332 INFO L479 AbstractCegarLoop]: Abstraction has 9281 states and 12141 transitions. [2020-10-14 03:37:35,332 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:37:35,332 INFO L276 IsEmpty]: Start isEmpty. Operand 9281 states and 12141 transitions. [2020-10-14 03:37:35,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2020-10-14 03:37:35,347 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:37:35,348 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:37:35,348 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 03:37:35,348 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:37:35,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:37:35,349 INFO L82 PathProgramCache]: Analyzing trace with hash 113252268, now seen corresponding path program 1 times [2020-10-14 03:37:35,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:37:35,349 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1264631719] [2020-10-14 03:37:35,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:37:35,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:37:35,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:37:35,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:37:37,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:37:37,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:37:37,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:37:40,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:37:40,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 471 [2020-10-14 03:37:40,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:37:40,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-14 03:37:40,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:37:40,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:37:40,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:37:40,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 210 [2020-10-14 03:37:40,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-14 03:37:40,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:37:40,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:37:40,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:37:40,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:37:40,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:37:40,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:37:40,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:37:40,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:37:40,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:37:40,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:37:40,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:37:40,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:37:40,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:37:40,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:37:40,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:37:40,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:37:40,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:37:40,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:37:40,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-14 03:37:40,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:37:40,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-14 03:37:40,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:37:40,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:37:40,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:37:40,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:37:40,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 195 [2020-10-14 03:37:40,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:37:40,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 03:37:40,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:37:40,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:37:40,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:37:40,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 03:37:40,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:37:40,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-14 03:37:40,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:37:40,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:37:40,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:37:40,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:37:40,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 03:37:40,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:37:41,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2020-10-14 03:37:41,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:37:41,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:37:41,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:37:41,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 03:37:41,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:37:41,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 03:37:41,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:37:41,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:37:41,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:37:41,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 99 [2020-10-14 03:37:41,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:37:41,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:37:41,329 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 226 proven. 100 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2020-10-14 03:37:41,329 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1264631719] [2020-10-14 03:37:41,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:37:41,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:37:41,330 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124150234] [2020-10-14 03:37:41,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:37:41,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:37:41,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:37:41,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:37:41,332 INFO L87 Difference]: Start difference. First operand 9281 states and 12141 transitions. Second operand 8 states. [2020-10-14 03:37:54,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:37:54,310 INFO L93 Difference]: Finished difference Result 22963 states and 31269 transitions. [2020-10-14 03:37:54,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 03:37:54,312 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 457 [2020-10-14 03:37:54,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:37:54,364 INFO L225 Difference]: With dead ends: 22963 [2020-10-14 03:37:54,364 INFO L226 Difference]: Without dead ends: 13692 [2020-10-14 03:37:54,401 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2020-10-14 03:37:54,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13692 states. [2020-10-14 03:37:54,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13692 to 13670. [2020-10-14 03:37:54,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13670 states. [2020-10-14 03:37:54,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13670 states to 13670 states and 17856 transitions. [2020-10-14 03:37:54,793 INFO L78 Accepts]: Start accepts. Automaton has 13670 states and 17856 transitions. Word has length 457 [2020-10-14 03:37:54,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:37:54,794 INFO L479 AbstractCegarLoop]: Abstraction has 13670 states and 17856 transitions. [2020-10-14 03:37:54,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:37:54,794 INFO L276 IsEmpty]: Start isEmpty. Operand 13670 states and 17856 transitions. [2020-10-14 03:37:54,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2020-10-14 03:37:54,814 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:37:54,815 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:37:54,816 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 03:37:54,816 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:37:54,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:37:54,816 INFO L82 PathProgramCache]: Analyzing trace with hash -100789867, now seen corresponding path program 1 times [2020-10-14 03:37:54,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:37:54,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1180602674] [2020-10-14 03:37:54,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:37:55,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:37:55,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:37:55,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:37:56,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:37:56,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:37:57,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:38:00,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:38:00,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 545 [2020-10-14 03:38:00,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:38:00,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4929 [2020-10-14 03:38:00,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:38:00,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:38:00,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:38:00,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 284 [2020-10-14 03:38:00,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-14 03:38:00,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:38:00,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:38:00,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:38:00,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:38:00,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:38:00,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:38:00,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:38:00,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:38:00,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:38:00,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:38:00,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:38:00,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:38:00,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:38:00,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:38:00,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:38:00,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:38:00,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:38:00,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:38:00,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-14 03:38:00,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:38:00,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-14 03:38:00,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:38:00,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:38:00,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:38:00,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:38:00,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 269 [2020-10-14 03:38:00,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:38:00,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:38:00,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:38:00,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:38:00,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:38:00,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 03:38:00,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:38:00,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 03:38:00,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:38:00,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:38:00,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:38:00,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:38:00,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 03:38:00,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:38:00,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2020-10-14 03:38:00,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:38:00,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:38:00,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:38:00,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 03:38:00,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:38:00,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 03:38:00,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:38:00,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:38:00,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:38:00,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 99 [2020-10-14 03:38:00,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:38:00,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:38:01,123 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 226 proven. 100 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2020-10-14 03:38:01,124 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1180602674] [2020-10-14 03:38:01,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:38:01,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:38:01,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334830068] [2020-10-14 03:38:01,126 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:38:01,126 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:38:01,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:38:01,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:38:01,127 INFO L87 Difference]: Start difference. First operand 13670 states and 17856 transitions. Second operand 7 states. [2020-10-14 03:38:11,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:38:11,865 INFO L93 Difference]: Finished difference Result 28789 states and 39576 transitions. [2020-10-14 03:38:11,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:38:11,866 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 531 [2020-10-14 03:38:11,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:38:11,949 INFO L225 Difference]: With dead ends: 28789 [2020-10-14 03:38:11,950 INFO L226 Difference]: Without dead ends: 15129 [2020-10-14 03:38:11,996 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:38:12,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15129 states. [2020-10-14 03:38:12,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15129 to 14925. [2020-10-14 03:38:12,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14925 states. [2020-10-14 03:38:12,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14925 states to 14925 states and 19283 transitions. [2020-10-14 03:38:12,417 INFO L78 Accepts]: Start accepts. Automaton has 14925 states and 19283 transitions. Word has length 531 [2020-10-14 03:38:12,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:38:12,418 INFO L479 AbstractCegarLoop]: Abstraction has 14925 states and 19283 transitions. [2020-10-14 03:38:12,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:38:12,418 INFO L276 IsEmpty]: Start isEmpty. Operand 14925 states and 19283 transitions. [2020-10-14 03:38:12,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2020-10-14 03:38:12,448 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:38:12,449 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:38:12,450 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 03:38:12,450 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:38:12,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:38:12,451 INFO L82 PathProgramCache]: Analyzing trace with hash -1593670707, now seen corresponding path program 1 times [2020-10-14 03:38:12,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:38:12,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2078457485] [2020-10-14 03:38:12,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:38:12,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:38:12,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:38:13,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:38:14,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:38:15,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:38:15,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:38:15,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 557 [2020-10-14 03:38:15,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:38:15,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2740 [2020-10-14 03:38:15,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:38:15,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:38:15,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:38:15,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 409 [2020-10-14 03:38:15,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 03:38:15,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:38:15,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:38:15,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:38:15,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:38:15,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:38:15,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:38:15,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:38:15,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:38:15,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:38:15,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:38:15,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:38:15,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:38:15,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:38:15,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:38:15,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:38:15,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:38:15,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:38:15,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:38:15,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 03:38:15,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:38:15,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 03:38:15,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:38:15,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:38:15,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:38:15,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:38:15,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:38:15,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:38:15,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-14 03:38:15,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:38:15,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:38:15,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:38:15,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 03:38:15,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:38:15,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 03:38:15,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:38:15,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:38:15,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:38:15,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:38:15,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 03:38:15,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:38:15,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-14 03:38:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:38:15,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:38:15,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:38:15,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 03:38:15,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:38:15,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 03:38:15,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:38:15,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:38:15,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:38:15,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:38:15,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-14 03:38:15,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:38:16,131 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 315 proven. 2 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-14 03:38:16,132 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2078457485] [2020-10-14 03:38:16,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:38:16,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:38:16,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995028717] [2020-10-14 03:38:16,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:38:16,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:38:16,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:38:16,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:38:16,134 INFO L87 Difference]: Start difference. First operand 14925 states and 19283 transitions. Second operand 7 states. [2020-10-14 03:38:26,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:38:26,520 INFO L93 Difference]: Finished difference Result 31214 states and 44017 transitions. [2020-10-14 03:38:26,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:38:26,523 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 543 [2020-10-14 03:38:26,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:38:26,617 INFO L225 Difference]: With dead ends: 31214 [2020-10-14 03:38:26,617 INFO L226 Difference]: Without dead ends: 19983 [2020-10-14 03:38:26,654 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:38:26,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19983 states. [2020-10-14 03:38:27,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19983 to 17751. [2020-10-14 03:38:27,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17751 states. [2020-10-14 03:38:27,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17751 states to 17751 states and 23147 transitions. [2020-10-14 03:38:27,194 INFO L78 Accepts]: Start accepts. Automaton has 17751 states and 23147 transitions. Word has length 543 [2020-10-14 03:38:27,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:38:27,195 INFO L479 AbstractCegarLoop]: Abstraction has 17751 states and 23147 transitions. [2020-10-14 03:38:27,195 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:38:27,195 INFO L276 IsEmpty]: Start isEmpty. Operand 17751 states and 23147 transitions. [2020-10-14 03:38:27,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 571 [2020-10-14 03:38:27,213 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:38:27,215 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:38:27,215 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 03:38:27,216 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:38:27,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:38:27,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1736441866, now seen corresponding path program 1 times [2020-10-14 03:38:27,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:38:27,218 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1108203974] [2020-10-14 03:38:27,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:38:27,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:38:27,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:38:28,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:38:28,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:38:29,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:38:29,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 584 [2020-10-14 03:38:29,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:38:29,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1857 [2020-10-14 03:38:29,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:38:29,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:38:29,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:38:29,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 409 [2020-10-14 03:38:29,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-14 03:38:29,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:38:29,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:38:29,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:38:29,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:38:29,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:38:29,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:38:29,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:38:29,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:38:29,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:38:29,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:38:29,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:38:29,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:38:29,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:38:29,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:38:29,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:38:29,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:38:29,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:38:29,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:38:29,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-14 03:38:29,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:38:29,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 03:38:29,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:38:29,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:38:29,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:38:29,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:38:29,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:38:29,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:38:29,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-14 03:38:29,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:38:29,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:38:29,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:38:29,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 03:38:29,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:38:29,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 03:38:29,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:38:29,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:38:29,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:38:29,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:38:29,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 03:38:29,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:38:29,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-14 03:38:29,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:38:29,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:38:29,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:38:29,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 03:38:29,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:38:29,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-14 03:38:29,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:38:29,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:38:29,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:38:29,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:38:29,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-14 03:38:29,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:38:30,071 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 352 proven. 2 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-14 03:38:30,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1108203974] [2020-10-14 03:38:30,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:38:30,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:38:30,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113763001] [2020-10-14 03:38:30,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:38:30,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:38:30,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:38:30,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:38:30,074 INFO L87 Difference]: Start difference. First operand 17751 states and 23147 transitions. Second operand 7 states. [2020-10-14 03:38:38,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:38:38,064 INFO L93 Difference]: Finished difference Result 37046 states and 50594 transitions. [2020-10-14 03:38:38,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:38:38,065 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 570 [2020-10-14 03:38:38,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:38:38,147 INFO L225 Difference]: With dead ends: 37046 [2020-10-14 03:38:38,147 INFO L226 Difference]: Without dead ends: 22989 [2020-10-14 03:38:38,175 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:38:38,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22989 states. [2020-10-14 03:38:38,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22989 to 22365. [2020-10-14 03:38:38,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22365 states. [2020-10-14 03:38:38,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22365 states to 22365 states and 29324 transitions. [2020-10-14 03:38:38,642 INFO L78 Accepts]: Start accepts. Automaton has 22365 states and 29324 transitions. Word has length 570 [2020-10-14 03:38:38,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:38:38,643 INFO L479 AbstractCegarLoop]: Abstraction has 22365 states and 29324 transitions. [2020-10-14 03:38:38,643 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:38:38,643 INFO L276 IsEmpty]: Start isEmpty. Operand 22365 states and 29324 transitions. [2020-10-14 03:38:38,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 586 [2020-10-14 03:38:38,664 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:38:38,664 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-14 03:38:38,665 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 03:38:38,665 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:38:38,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:38:38,665 INFO L82 PathProgramCache]: Analyzing trace with hash -1702010399, now seen corresponding path program 1 times [2020-10-14 03:38:38,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:38:38,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [798399894] [2020-10-14 03:38:38,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:38:38,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:38:38,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:38:38,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:38:39,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:38:39,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:38:40,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:38:43,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:38:43,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 601 [2020-10-14 03:38:43,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:38:43,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-14 03:38:43,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:38:43,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:38:43,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:38:43,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 210 [2020-10-14 03:38:43,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 03:38:43,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:38:43,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:38:43,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:38:43,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:38:43,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:38:43,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:38:43,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:38:43,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:38:43,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:38:43,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:38:43,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:38:43,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:38:43,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:38:43,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:38:43,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:38:43,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:38:43,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:38:43,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:38:43,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-14 03:38:43,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:38:43,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-14 03:38:43,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:38:43,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:38:43,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:38:43,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:38:43,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 195 [2020-10-14 03:38:43,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:38:44,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 03:38:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:38:44,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:38:44,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:38:44,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 03:38:44,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:38:44,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-14 03:38:44,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:38:44,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:38:44,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:38:44,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:38:44,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 03:38:44,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:38:44,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2020-10-14 03:38:44,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:38:44,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:38:44,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:38:44,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 03:38:44,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:38:44,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 03:38:44,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:38:44,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:38:44,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:38:44,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-14 03:38:44,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:38:44,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:38:44,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2020-10-14 03:38:44,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:38:44,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:38:44,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:38:44,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 03:38:44,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:38:44,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 03:38:44,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:38:44,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:38:44,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:38:44,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-14 03:38:44,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:38:44,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:38:44,567 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 281 proven. 206 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2020-10-14 03:38:44,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [798399894] [2020-10-14 03:38:44,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:38:44,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:38:44,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505525572] [2020-10-14 03:38:44,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:38:44,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:38:44,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:38:44,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:38:44,569 INFO L87 Difference]: Start difference. First operand 22365 states and 29324 transitions. Second operand 7 states. [2020-10-14 03:38:56,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:38:56,499 INFO L93 Difference]: Finished difference Result 55846 states and 73033 transitions. [2020-10-14 03:38:56,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:38:56,501 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 585 [2020-10-14 03:38:56,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:38:56,595 INFO L225 Difference]: With dead ends: 55846 [2020-10-14 03:38:56,596 INFO L226 Difference]: Without dead ends: 33491 [2020-10-14 03:38:56,639 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 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 03:38:56,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33491 states. [2020-10-14 03:38:57,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33491 to 32548. [2020-10-14 03:38:57,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32548 states. [2020-10-14 03:38:57,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32548 states to 32548 states and 41842 transitions. [2020-10-14 03:38:57,310 INFO L78 Accepts]: Start accepts. Automaton has 32548 states and 41842 transitions. Word has length 585 [2020-10-14 03:38:57,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:38:57,311 INFO L479 AbstractCegarLoop]: Abstraction has 32548 states and 41842 transitions. [2020-10-14 03:38:57,311 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:38:57,311 INFO L276 IsEmpty]: Start isEmpty. Operand 32548 states and 41842 transitions. [2020-10-14 03:38:57,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 609 [2020-10-14 03:38:57,328 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:38:57,330 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 03:38:57,330 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 03:38:57,330 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:38:57,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:38:57,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1956139928, now seen corresponding path program 1 times [2020-10-14 03:38:57,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:38:57,331 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [914042071] [2020-10-14 03:38:57,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:38:57,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:38:57,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:38:57,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:38:59,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:38:59,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:02,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:02,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 624 [2020-10-14 03:39:02,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:39:02,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-14 03:39:02,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:02,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:02,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:39:02,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 380 [2020-10-14 03:39:02,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 03:39:02,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:39:02,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:39:02,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:02,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:02,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:02,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:39:02,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:02,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:39:02,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:02,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:02,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:39:02,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:39:02,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:39:02,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:39:02,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:39:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:02,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:02,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:02,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-14 03:39:02,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:02,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 03:39:02,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:02,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:02,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:39:02,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:39:02,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:39:02,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:39:02,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 03:39:02,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:02,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:02,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:02,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-14 03:39:02,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:02,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-14 03:39:02,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:02,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:02,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:39:02,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:39:02,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-14 03:39:02,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:39:02,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2020-10-14 03:39:02,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:02,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:02,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:02,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 03:39:02,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:02,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 03:39:02,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:02,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:02,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:39:02,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:39:02,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 03:39:02,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:39:03,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2020-10-14 03:39:03,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:03,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:03,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:03,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:39:03,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:03,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:39:03,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:03,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:03,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:39:03,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 03:39:03,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:39:03,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:39:03,526 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 319 proven. 79 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2020-10-14 03:39:03,527 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [914042071] [2020-10-14 03:39:03,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:39:03,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:39:03,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047563915] [2020-10-14 03:39:03,528 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:39:03,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:39:03,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:39:03,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:39:03,529 INFO L87 Difference]: Start difference. First operand 32548 states and 41842 transitions. Second operand 7 states. [2020-10-14 03:39:13,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:39:13,815 INFO L93 Difference]: Finished difference Result 66949 states and 86026 transitions. [2020-10-14 03:39:13,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:39:13,818 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 608 [2020-10-14 03:39:13,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:39:13,915 INFO L225 Difference]: With dead ends: 66949 [2020-10-14 03:39:13,916 INFO L226 Difference]: Without dead ends: 34411 [2020-10-14 03:39:13,976 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:39:14,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34411 states. [2020-10-14 03:39:14,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34411 to 34407. [2020-10-14 03:39:14,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34407 states. [2020-10-14 03:39:14,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34407 states to 34407 states and 43793 transitions. [2020-10-14 03:39:14,547 INFO L78 Accepts]: Start accepts. Automaton has 34407 states and 43793 transitions. Word has length 608 [2020-10-14 03:39:14,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:39:14,548 INFO L479 AbstractCegarLoop]: Abstraction has 34407 states and 43793 transitions. [2020-10-14 03:39:14,548 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:39:14,548 INFO L276 IsEmpty]: Start isEmpty. Operand 34407 states and 43793 transitions. [2020-10-14 03:39:14,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 637 [2020-10-14 03:39:14,565 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:39:14,566 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-14 03:39:14,566 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 03:39:14,566 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:39:14,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:39:14,567 INFO L82 PathProgramCache]: Analyzing trace with hash -125661004, now seen corresponding path program 1 times [2020-10-14 03:39:14,567 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:39:14,567 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1548064697] [2020-10-14 03:39:14,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:39:14,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:14,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:14,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:14,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:15,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:17,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:19,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:19,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 652 [2020-10-14 03:39:19,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:39:19,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-14 03:39:19,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:19,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:19,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:39:19,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 477 [2020-10-14 03:39:19,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-14 03:39:19,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:39:19,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:39:19,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:19,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:19,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:19,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:39:19,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:19,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:39:19,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:19,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:19,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:39:19,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:39:19,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:39:19,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:39:19,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:39:19,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:19,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:19,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:19,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-10-14 03:39:19,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:19,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 03:39:19,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:19,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:19,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:39:19,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:39:19,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:39:19,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:39:19,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2020-10-14 03:39:19,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:19,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:19,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:19,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 03:39:19,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:19,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 03:39:19,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:19,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:19,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:39:19,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:39:19,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:39:19,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:39:19,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2020-10-14 03:39:19,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:20,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:20,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:20,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 03:39:20,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:20,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 03:39:20,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:20,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:20,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:39:20,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:39:20,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 03:39:20,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:39:20,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2020-10-14 03:39:20,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:20,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:20,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:20,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 03:39:20,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:20,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-14 03:39:20,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:20,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:20,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:39:20,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:39:20,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-14 03:39:20,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:39:20,389 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 491 proven. 2 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2020-10-14 03:39:20,389 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1548064697] [2020-10-14 03:39:20,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:39:20,390 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:39:20,390 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175472098] [2020-10-14 03:39:20,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:39:20,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:39:20,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:39:20,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:39:20,391 INFO L87 Difference]: Start difference. First operand 34407 states and 43793 transitions. Second operand 7 states.