/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label25.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 03:45:47,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 03:45:47,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 03:45:47,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 03:45:47,117 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 03:45:47,118 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 03:45:47,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 03:45:47,121 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 03:45:47,122 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 03:45:47,123 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 03:45:47,124 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 03:45:47,125 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 03:45:47,125 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 03:45:47,126 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 03:45:47,127 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 03:45:47,128 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 03:45:47,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 03:45:47,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 03:45:47,131 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 03:45:47,133 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 03:45:47,134 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 03:45:47,135 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 03:45:47,136 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 03:45:47,137 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 03:45:47,139 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 03:45:47,139 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 03:45:47,139 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 03:45:47,140 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 03:45:47,141 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 03:45:47,141 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 03:45:47,142 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 03:45:47,142 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 03:45:47,143 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 03:45:47,144 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 03:45:47,145 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 03:45:47,145 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 03:45:47,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 03:45:47,146 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 03:45:47,146 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 03:45:47,147 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 03:45:47,147 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 03:45:47,150 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 03:45:47,198 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 03:45:47,198 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 03:45:47,199 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 03:45:47,200 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 03:45:47,202 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 03:45:47,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 03:45:47,202 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 03:45:47,203 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 03:45:47,203 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 03:45:47,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 03:45:47,203 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 03:45:47,203 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 03:45:47,203 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 03:45:47,204 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 03:45:47,204 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 03:45:47,204 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 03:45:47,204 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 03:45:47,204 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 03:45:47,205 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 03:45:47,205 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 03:45:47,207 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 03:45:47,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 03:45:47,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 03:45:47,208 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 03:45:47,208 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 03:45:47,208 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 03:45:47,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 03:45:47,208 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 03:45:47,209 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 03:45:47,209 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 03:45:47,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 03:45:47,521 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 03:45:47,524 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 03:45:47,526 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 03:45:47,527 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 03:45:47,527 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label25.c [2020-10-14 03:45:47,592 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/baf8d7f70/7cf03971e2354f0d8503f83c89994a7a/FLAG7ce44d129 [2020-10-14 03:45:48,333 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 03:45:48,334 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label25.c [2020-10-14 03:45:48,365 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/baf8d7f70/7cf03971e2354f0d8503f83c89994a7a/FLAG7ce44d129 [2020-10-14 03:45:48,525 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/baf8d7f70/7cf03971e2354f0d8503f83c89994a7a [2020-10-14 03:45:48,538 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 03:45:48,541 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 03:45:48,543 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 03:45:48,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 03:45:48,547 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 03:45:48,549 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:45:48" (1/1) ... [2020-10-14 03:45:48,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@656101fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:48, skipping insertion in model container [2020-10-14 03:45:48,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:45:48" (1/1) ... [2020-10-14 03:45:48,564 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 03:45:48,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 03:45:49,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:45:49,714 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 03:45:50,213 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:45:50,234 INFO L208 MainTranslator]: Completed translation [2020-10-14 03:45:50,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:50 WrapperNode [2020-10-14 03:45:50,236 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 03:45:50,237 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 03:45:50,237 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 03:45:50,237 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 03:45:50,256 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:50" (1/1) ... [2020-10-14 03:45:50,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:50" (1/1) ... [2020-10-14 03:45:50,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:50" (1/1) ... [2020-10-14 03:45:50,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:50" (1/1) ... [2020-10-14 03:45:50,388 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:50" (1/1) ... [2020-10-14 03:45:50,406 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:50" (1/1) ... [2020-10-14 03:45:50,417 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:50" (1/1) ... [2020-10-14 03:45:50,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 03:45:50,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 03:45:50,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 03:45:50,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 03:45:50,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:50" (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 03:45:50,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 03:45:50,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 03:45:50,505 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 03:45:50,505 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 03:45:50,505 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 03:45:50,505 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 03:45:50,505 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 03:45:50,506 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 03:45:50,506 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 03:45:50,506 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 03:45:50,506 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 03:45:50,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 03:45:50,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 03:45:52,795 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 03:45:52,796 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 03:45:52,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:45:52 BoogieIcfgContainer [2020-10-14 03:45:52,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 03:45:52,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 03:45:52,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 03:45:52,823 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 03:45:52,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:45:48" (1/3) ... [2020-10-14 03:45:52,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72bea2ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:45:52, skipping insertion in model container [2020-10-14 03:45:52,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:50" (2/3) ... [2020-10-14 03:45:52,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72bea2ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:45:52, skipping insertion in model container [2020-10-14 03:45:52,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:45:52" (3/3) ... [2020-10-14 03:45:52,831 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label25.c [2020-10-14 03:45:52,844 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 03:45:52,866 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 03:45:52,881 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 03:45:52,918 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 03:45:52,919 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 03:45:52,919 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 03:45:52,919 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 03:45:52,919 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 03:45:52,919 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 03:45:52,919 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 03:45:52,920 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 03:45:52,957 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 03:45:52,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-14 03:45:52,973 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:45:52,975 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:45:52,975 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:45:52,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:45:52,982 INFO L82 PathProgramCache]: Analyzing trace with hash 134360965, now seen corresponding path program 1 times [2020-10-14 03:45:52,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:45:52,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1123792188] [2020-10-14 03:45:52,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:45:53,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:53,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:53,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:53,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-14 03:45:53,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:53,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 352 [2020-10-14 03:45:53,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:53,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:53,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 03:45:53,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 03:45:53,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 03:45:53,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 03:45:53,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:45:53,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:53,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:53,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:53,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:45:53,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:53,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 03:45:53,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:53,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:53,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:45:53,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:53,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:45:53,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:45:53,720 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 03:45:53,721 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1123792188] [2020-10-14 03:45:53,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 03:45:53,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 03:45:53,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139737853] [2020-10-14 03:45:53,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 03:45:53,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:45:53,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 03:45:53,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 03:45:53,750 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-14 03:45:57,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:45:57,273 INFO L93 Difference]: Finished difference Result 1169 states and 2165 transitions. [2020-10-14 03:45:57,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:45:57,275 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2020-10-14 03:45:57,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:45:57,298 INFO L225 Difference]: With dead ends: 1169 [2020-10-14 03:45:57,298 INFO L226 Difference]: Without dead ends: 696 [2020-10-14 03:45:57,307 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 03:45:57,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-14 03:45:57,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 689. [2020-10-14 03:45:57,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2020-10-14 03:45:57,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1077 transitions. [2020-10-14 03:45:57,416 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1077 transitions. Word has length 56 [2020-10-14 03:45:57,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:45:57,418 INFO L479 AbstractCegarLoop]: Abstraction has 689 states and 1077 transitions. [2020-10-14 03:45:57,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 03:45:57,418 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1077 transitions. [2020-10-14 03:45:57,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-14 03:45:57,428 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:45:57,429 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:45:57,429 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 03:45:57,429 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:45:57,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:45:57,430 INFO L82 PathProgramCache]: Analyzing trace with hash 157682093, now seen corresponding path program 1 times [2020-10-14 03:45:57,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:45:57,431 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [256466050] [2020-10-14 03:45:57,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:45:57,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:57,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:57,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:58,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:58,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 03:45:58,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:45:58,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 906 [2020-10-14 03:45:58,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:58,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:58,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:58,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-14 03:45:58,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 03:45:58,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:45:58,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:45:58,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:58,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:58,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:58,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:45:58,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:58,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:45:58,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:58,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:58,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:58,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:58,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:58,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:45:58,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:45:58,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:58,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:58,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:58,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 03:45:58,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:58,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-14 03:45:58,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:58,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:58,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:45:58,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:58,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 03:45:58,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:45:58,704 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:45:58,704 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [256466050] [2020-10-14 03:45:58,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:45:58,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 03:45:58,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599823716] [2020-10-14 03:45:58,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 03:45:58,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:45:58,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 03:45:58,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:45:58,708 INFO L87 Difference]: Start difference. First operand 689 states and 1077 transitions. Second operand 6 states. [2020-10-14 03:46:03,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:46:03,628 INFO L93 Difference]: Finished difference Result 2744 states and 4355 transitions. [2020-10-14 03:46:03,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 03:46:03,629 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 131 [2020-10-14 03:46:03,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:46:03,641 INFO L225 Difference]: With dead ends: 2744 [2020-10-14 03:46:03,642 INFO L226 Difference]: Without dead ends: 2061 [2020-10-14 03:46:03,645 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:46:03,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2061 states. [2020-10-14 03:46:03,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2061 to 2057. [2020-10-14 03:46:03,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2057 states. [2020-10-14 03:46:03,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2057 states to 2057 states and 2927 transitions. [2020-10-14 03:46:03,731 INFO L78 Accepts]: Start accepts. Automaton has 2057 states and 2927 transitions. Word has length 131 [2020-10-14 03:46:03,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:46:03,734 INFO L479 AbstractCegarLoop]: Abstraction has 2057 states and 2927 transitions. [2020-10-14 03:46:03,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 03:46:03,736 INFO L276 IsEmpty]: Start isEmpty. Operand 2057 states and 2927 transitions. [2020-10-14 03:46:03,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-10-14 03:46:03,744 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:03,744 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:46:03,744 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 03:46:03,744 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:03,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:03,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1023128568, now seen corresponding path program 1 times [2020-10-14 03:46:03,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:03,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [709246007] [2020-10-14 03:46:03,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:03,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:03,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:03,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:04,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:05,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:05,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:05,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:08,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:08,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 231 [2020-10-14 03:46:08,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:46:08,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4214 [2020-10-14 03:46:08,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:08,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:08,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:08,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-14 03:46:08,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 03:46:08,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:46:08,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:46:08,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:08,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:08,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:08,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:46:08,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:08,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:46:08,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:08,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:08,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:08,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:08,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:08,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:08,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:46:08,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:08,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:08,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:08,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 03:46:08,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:08,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 03:46:08,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:08,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:08,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:08,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:08,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 03:46:08,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:08,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 03:46:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:08,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:08,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:08,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:46:08,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:08,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 03:46:08,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:08,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:08,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:08,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:46:08,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 03:46:08,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:08,415 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 167 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:46:08,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [709246007] [2020-10-14 03:46:08,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:46:08,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:46:08,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67480701] [2020-10-14 03:46:08,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:46:08,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:46:08,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:46:08,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:46:08,418 INFO L87 Difference]: Start difference. First operand 2057 states and 2927 transitions. Second operand 7 states. [2020-10-14 03:46:12,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:46:12,489 INFO L93 Difference]: Finished difference Result 5198 states and 7646 transitions. [2020-10-14 03:46:12,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:46:12,490 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 219 [2020-10-14 03:46:12,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:46:12,512 INFO L225 Difference]: With dead ends: 5198 [2020-10-14 03:46:12,512 INFO L226 Difference]: Without dead ends: 3147 [2020-10-14 03:46:12,518 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 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 03:46:12,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3147 states. [2020-10-14 03:46:12,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3147 to 3116. [2020-10-14 03:46:12,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3116 states. [2020-10-14 03:46:12,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 4185 transitions. [2020-10-14 03:46:12,609 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 4185 transitions. Word has length 219 [2020-10-14 03:46:12,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:46:12,610 INFO L479 AbstractCegarLoop]: Abstraction has 3116 states and 4185 transitions. [2020-10-14 03:46:12,610 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:46:12,610 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 4185 transitions. [2020-10-14 03:46:12,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2020-10-14 03:46:12,621 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:12,621 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-14 03:46:12,622 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 03:46:12,622 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:12,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:12,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1163733345, now seen corresponding path program 1 times [2020-10-14 03:46:12,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:12,623 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [563027731] [2020-10-14 03:46:12,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:12,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:12,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:12,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:12,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:14,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:14,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:16,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:16,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:17,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:17,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 428 [2020-10-14 03:46:17,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 03:46:17,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-14 03:46:17,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:17,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:17,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:17,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-14 03:46:17,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 03:46:17,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:17,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:46:17,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:17,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:17,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:17,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:46:17,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:17,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:46:17,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:17,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:17,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:17,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:17,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:17,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:17,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:46:17,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:17,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:17,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:17,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 03:46:17,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:17,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 03:46:17,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:17,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:17,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:17,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:17,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:17,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:17,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 03:46:17,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:17,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:17,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:17,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:46:17,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:17,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 03:46:17,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:17,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:17,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:17,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:17,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 03:46:17,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:17,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-14 03:46:18,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:18,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:18,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:18,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:46:18,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:18,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-14 03:46:18,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:18,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:18,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:18,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:46:18,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 03:46:18,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:18,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2020-10-14 03:46:18,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:18,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:18,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:18,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:46:18,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:18,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 03:46:18,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:18,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:18,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:18,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 03:46:18,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:18,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:18,589 INFO L134 CoverageAnalysis]: Checked inductivity of 669 backedges. 377 proven. 71 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2020-10-14 03:46:18,589 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [563027731] [2020-10-14 03:46:18,590 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:46:18,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:46:18,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650040554] [2020-10-14 03:46:18,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:46:18,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:46:18,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:46:18,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:46:18,592 INFO L87 Difference]: Start difference. First operand 3116 states and 4185 transitions. Second operand 7 states. [2020-10-14 03:46:25,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:46:25,545 INFO L93 Difference]: Finished difference Result 10089 states and 14056 transitions. [2020-10-14 03:46:25,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:46:25,546 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 412 [2020-10-14 03:46:25,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:46:25,596 INFO L225 Difference]: With dead ends: 10089 [2020-10-14 03:46:25,597 INFO L226 Difference]: Without dead ends: 6979 [2020-10-14 03:46:25,608 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:46:25,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6979 states. [2020-10-14 03:46:25,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6979 to 6900. [2020-10-14 03:46:25,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6900 states. [2020-10-14 03:46:25,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6900 states to 6900 states and 8826 transitions. [2020-10-14 03:46:25,806 INFO L78 Accepts]: Start accepts. Automaton has 6900 states and 8826 transitions. Word has length 412 [2020-10-14 03:46:25,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:46:25,807 INFO L479 AbstractCegarLoop]: Abstraction has 6900 states and 8826 transitions. [2020-10-14 03:46:25,807 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:46:25,807 INFO L276 IsEmpty]: Start isEmpty. Operand 6900 states and 8826 transitions. [2020-10-14 03:46:25,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2020-10-14 03:46:25,822 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:25,823 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:46:25,823 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 03:46:25,823 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:25,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:25,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1490583623, now seen corresponding path program 1 times [2020-10-14 03:46:25,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:25,824 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1329974631] [2020-10-14 03:46:25,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:25,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:25,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:26,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:27,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:27,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:30,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:30,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 432 [2020-10-14 03:46:30,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:46:30,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4297 [2020-10-14 03:46:30,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:30,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:30,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:30,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-14 03:46:30,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:46:30,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:30,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:46:30,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:30,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:30,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:30,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:46:30,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:30,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:46:30,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:30,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:30,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:30,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:30,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:30,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:30,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:46:30,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:30,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:30,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:30,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 03:46:30,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:30,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 03:46:30,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:30,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:30,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:30,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:30,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 03:46:30,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:30,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 03:46:30,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:30,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:30,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:30,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:46:30,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:30,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 399 [2020-10-14 03:46:30,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:30,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:30,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:30,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:46:30,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:46:30,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:31,338 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 186 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:46:31,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1329974631] [2020-10-14 03:46:31,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:46:31,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:46:31,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926708604] [2020-10-14 03:46:31,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:46:31,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:46:31,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:46:31,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:46:31,342 INFO L87 Difference]: Start difference. First operand 6900 states and 8826 transitions. Second operand 7 states. [2020-10-14 03:46:35,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:46:35,748 INFO L93 Difference]: Finished difference Result 15538 states and 20318 transitions. [2020-10-14 03:46:35,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:46:35,749 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 420 [2020-10-14 03:46:35,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:46:35,783 INFO L225 Difference]: With dead ends: 15538 [2020-10-14 03:46:35,783 INFO L226 Difference]: Without dead ends: 7245 [2020-10-14 03:46:35,803 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:46:35,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7245 states. [2020-10-14 03:46:35,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7245 to 6210. [2020-10-14 03:46:35,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6210 states. [2020-10-14 03:46:35,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6210 states to 6210 states and 7019 transitions. [2020-10-14 03:46:35,994 INFO L78 Accepts]: Start accepts. Automaton has 6210 states and 7019 transitions. Word has length 420 [2020-10-14 03:46:35,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:46:35,994 INFO L479 AbstractCegarLoop]: Abstraction has 6210 states and 7019 transitions. [2020-10-14 03:46:35,995 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:46:35,995 INFO L276 IsEmpty]: Start isEmpty. Operand 6210 states and 7019 transitions. [2020-10-14 03:46:36,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2020-10-14 03:46:36,009 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:36,010 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:46:36,010 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 03:46:36,010 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:36,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:36,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1180266556, now seen corresponding path program 1 times [2020-10-14 03:46:36,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:36,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1992767056] [2020-10-14 03:46:36,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:36,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:36,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:36,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:36,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:37,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:37,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:41,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:41,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 469 [2020-10-14 03:46:41,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:46:41,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 03:46:41,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:41,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:41,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:41,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 03:46:41,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 03:46:41,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:41,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:46:41,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:41,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:41,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:41,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:46:41,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:41,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:46:41,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:41,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:41,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:41,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:41,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:41,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:41,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:46:41,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:41,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:41,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:41,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 03:46:41,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:41,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 03:46:41,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:41,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:41,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:41,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:41,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 03:46:41,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 03:46:41,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 03:46:41,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:41,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:41,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:41,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:46:41,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:41,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-14 03:46:41,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:41,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:41,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:41,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:46:41,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 03:46:41,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:41,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-10-14 03:46:41,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:41,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:41,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:41,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:46:41,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:41,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 03:46:41,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:41,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:41,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:41,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:46:41,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:41,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:41,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2020-10-14 03:46:41,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:41,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:41,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:41,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:46:41,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:41,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 03:46:41,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:41,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:41,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:41,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 03:46:41,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:41,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:41,945 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 301 proven. 178 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2020-10-14 03:46:41,946 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1992767056] [2020-10-14 03:46:41,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:46:41,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:46:41,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670682211] [2020-10-14 03:46:41,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:46:41,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:46:41,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:46:41,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:46:41,950 INFO L87 Difference]: Start difference. First operand 6210 states and 7019 transitions. Second operand 7 states. [2020-10-14 03:46:44,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:46:44,522 INFO L93 Difference]: Finished difference Result 13792 states and 15632 transitions. [2020-10-14 03:46:44,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:46:44,523 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 453 [2020-10-14 03:46:44,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:46:44,554 INFO L225 Difference]: With dead ends: 13792 [2020-10-14 03:46:44,555 INFO L226 Difference]: Without dead ends: 7592 [2020-10-14 03:46:44,569 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:46:44,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7592 states. [2020-10-14 03:46:44,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7592 to 7233. [2020-10-14 03:46:44,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7233 states. [2020-10-14 03:46:44,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7233 states to 7233 states and 8062 transitions. [2020-10-14 03:46:44,748 INFO L78 Accepts]: Start accepts. Automaton has 7233 states and 8062 transitions. Word has length 453 [2020-10-14 03:46:44,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:46:44,749 INFO L479 AbstractCegarLoop]: Abstraction has 7233 states and 8062 transitions. [2020-10-14 03:46:44,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:46:44,749 INFO L276 IsEmpty]: Start isEmpty. Operand 7233 states and 8062 transitions. [2020-10-14 03:46:44,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 583 [2020-10-14 03:46:44,772 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:44,773 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:46:44,773 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 03:46:44,773 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:44,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:44,774 INFO L82 PathProgramCache]: Analyzing trace with hash -961599026, now seen corresponding path program 1 times [2020-10-14 03:46:44,774 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:44,774 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1099418427] [2020-10-14 03:46:44,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:44,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:44,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:45,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:45,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:45,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:49,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:49,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 600 [2020-10-14 03:46:49,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:46:49,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 03:46:49,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:49,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:49,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:49,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 03:46:49,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 03:46:49,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:49,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:46:49,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:49,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:49,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:49,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:46:49,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:49,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:46:49,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:49,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:49,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:49,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:49,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:49,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:49,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:46:49,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:49,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:50,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:50,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 03:46:50,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:50,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 03:46:50,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:50,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:50,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:50,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:50,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 03:46:50,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:50,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 03:46:50,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:50,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:50,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:50,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:46:50,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:50,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-14 03:46:50,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:50,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:50,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:50,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:46:50,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 03:46:50,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:50,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-14 03:46:50,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:50,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:50,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:50,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:46:50,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:50,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 03:46:50,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:50,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:50,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:50,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 03:46:50,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:50,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:50,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-14 03:46:50,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:50,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:50,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:50,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:46:50,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:50,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 03:46:50,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:50,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:50,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:50,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:46:50,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:50,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:50,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2020-10-14 03:46:50,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:50,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:50,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:50,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:46:50,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:50,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 03:46:50,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:50,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:50,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:50,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 03:46:50,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:50,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:50,647 INFO L134 CoverageAnalysis]: Checked inductivity of 1168 backedges. 354 proven. 290 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2020-10-14 03:46:50,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1099418427] [2020-10-14 03:46:50,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:46:50,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:46:50,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938684346] [2020-10-14 03:46:50,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:46:50,650 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:46:50,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:46:50,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:46:50,650 INFO L87 Difference]: Start difference. First operand 7233 states and 8062 transitions. Second operand 7 states. [2020-10-14 03:46:53,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:46:53,831 INFO L93 Difference]: Finished difference Result 16516 states and 18522 transitions. [2020-10-14 03:46:53,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:46:53,832 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 582 [2020-10-14 03:46:53,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:46:53,861 INFO L225 Difference]: With dead ends: 16516 [2020-10-14 03:46:53,862 INFO L226 Difference]: Without dead ends: 9965 [2020-10-14 03:46:53,874 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 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 03:46:53,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9965 states. [2020-10-14 03:46:54,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9965 to 9957. [2020-10-14 03:46:54,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9957 states. [2020-10-14 03:46:54,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9957 states to 9957 states and 10897 transitions. [2020-10-14 03:46:54,061 INFO L78 Accepts]: Start accepts. Automaton has 9957 states and 10897 transitions. Word has length 582 [2020-10-14 03:46:54,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:46:54,062 INFO L479 AbstractCegarLoop]: Abstraction has 9957 states and 10897 transitions. [2020-10-14 03:46:54,062 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:46:54,062 INFO L276 IsEmpty]: Start isEmpty. Operand 9957 states and 10897 transitions. [2020-10-14 03:46:54,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2020-10-14 03:46:54,098 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:54,099 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:46:54,099 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 03:46:54,100 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:54,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:54,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1212286050, now seen corresponding path program 1 times [2020-10-14 03:46:54,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:54,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [58061661] [2020-10-14 03:46:54,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:54,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:54,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:54,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:54,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:55,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:57,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:59,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:59,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 718 [2020-10-14 03:46:59,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:46:59,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 03:46:59,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:59,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:59,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:59,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 330 [2020-10-14 03:46:59,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:46:59,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:59,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:46:59,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:59,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:59,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:59,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:46:59,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:59,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:46:59,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:59,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:59,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:59,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:59,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:59,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:59,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:46:59,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:59,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:59,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:59,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:46:59,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:59,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 03:46:59,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:59,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:59,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:59,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:59,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:59,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:59,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:46:59,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:59,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:59,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:59,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:46:59,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:59,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 03:46:59,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:59,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:59,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:59,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:59,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 03:46:59,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:59,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 03:46:59,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:59,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:59,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:59,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:46:59,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:59,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-14 03:46:59,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:59,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:59,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:59,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:46:59,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:46:59,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:59,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 03:46:59,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:59,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:59,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:59,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:46:59,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:59,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 03:46:59,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:59,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:59,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:59,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:46:59,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:59,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:59,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 580 [2020-10-14 03:46:59,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:59,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:59,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:59,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:46:59,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:59,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 03:46:59,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:59,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:59,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:59,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 03:46:59,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:59,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:00,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1101 backedges. 473 proven. 178 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2020-10-14 03:47:00,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [58061661] [2020-10-14 03:47:00,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:00,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:00,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761032998] [2020-10-14 03:47:00,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:00,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:00,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:00,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:00,192 INFO L87 Difference]: Start difference. First operand 9957 states and 10897 transitions. Second operand 7 states. [2020-10-14 03:47:03,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:03,933 INFO L93 Difference]: Finished difference Result 22785 states and 26039 transitions. [2020-10-14 03:47:03,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:47:03,934 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 700 [2020-10-14 03:47:03,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:03,981 INFO L225 Difference]: With dead ends: 22785 [2020-10-14 03:47:03,981 INFO L226 Difference]: Without dead ends: 13514 [2020-10-14 03:47:04,005 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:47:04,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13514 states. [2020-10-14 03:47:04,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13514 to 13356. [2020-10-14 03:47:04,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13356 states. [2020-10-14 03:47:04,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13356 states to 13356 states and 14643 transitions. [2020-10-14 03:47:04,310 INFO L78 Accepts]: Start accepts. Automaton has 13356 states and 14643 transitions. Word has length 700 [2020-10-14 03:47:04,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:04,311 INFO L479 AbstractCegarLoop]: Abstraction has 13356 states and 14643 transitions. [2020-10-14 03:47:04,311 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:04,311 INFO L276 IsEmpty]: Start isEmpty. Operand 13356 states and 14643 transitions. [2020-10-14 03:47:04,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 702 [2020-10-14 03:47:04,332 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:04,332 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:47:04,333 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 03:47:04,333 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:04,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:04,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1296702917, now seen corresponding path program 1 times [2020-10-14 03:47:04,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:04,334 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [437308232] [2020-10-14 03:47:04,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:04,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:04,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:04,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:04,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:05,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:08,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:09,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:09,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 719 [2020-10-14 03:47:09,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:47:09,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5067 [2020-10-14 03:47:09,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:09,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:09,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:09,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 331 [2020-10-14 03:47:09,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:47:09,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:09,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:09,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:09,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:09,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:09,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:09,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:09,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:47:09,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:09,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:09,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:09,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:09,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:09,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:09,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:09,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:09,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:09,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:09,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:47:09,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:09,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 03:47:09,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:09,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:09,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:09,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:09,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:09,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:09,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:47:09,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:09,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:09,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:09,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:47:09,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:09,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 03:47:09,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:09,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:09,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:09,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:09,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 03:47:09,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:09,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-14 03:47:09,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:09,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:10,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:10,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:47:10,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:10,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-14 03:47:10,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:10,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:10,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:10,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:10,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:47:10,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:10,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2020-10-14 03:47:10,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:10,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:10,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:10,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:47:10,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:10,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 03:47:10,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:10,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:10,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:10,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:47:10,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:10,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:10,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 581 [2020-10-14 03:47:10,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:10,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:10,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:10,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:47:10,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:10,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 03:47:10,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:10,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:10,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:10,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 03:47:10,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:10,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:10,439 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 474 proven. 178 refuted. 0 times theorem prover too weak. 453 trivial. 0 not checked. [2020-10-14 03:47:10,440 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [437308232] [2020-10-14 03:47:10,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:10,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:10,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367276163] [2020-10-14 03:47:10,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:10,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:10,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:10,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:10,443 INFO L87 Difference]: Start difference. First operand 13356 states and 14643 transitions. Second operand 7 states. [2020-10-14 03:47:13,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:13,864 INFO L93 Difference]: Finished difference Result 28407 states and 31282 transitions. [2020-10-14 03:47:13,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:47:13,865 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 701 [2020-10-14 03:47:13,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:13,926 INFO L225 Difference]: With dead ends: 28407 [2020-10-14 03:47:13,926 INFO L226 Difference]: Without dead ends: 15739 [2020-10-14 03:47:13,954 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:47:13,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15739 states. [2020-10-14 03:47:14,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15739 to 15394. [2020-10-14 03:47:14,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15394 states. [2020-10-14 03:47:14,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15394 states to 15394 states and 16722 transitions. [2020-10-14 03:47:14,223 INFO L78 Accepts]: Start accepts. Automaton has 15394 states and 16722 transitions. Word has length 701 [2020-10-14 03:47:14,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:14,224 INFO L479 AbstractCegarLoop]: Abstraction has 15394 states and 16722 transitions. [2020-10-14 03:47:14,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:14,224 INFO L276 IsEmpty]: Start isEmpty. Operand 15394 states and 16722 transitions. [2020-10-14 03:47:14,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 727 [2020-10-14 03:47:14,250 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:14,250 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:47:14,251 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 03:47:14,251 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:14,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:14,251 INFO L82 PathProgramCache]: Analyzing trace with hash -664959858, now seen corresponding path program 1 times [2020-10-14 03:47:14,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:14,252 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1158356102] [2020-10-14 03:47:14,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:14,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:14,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:14,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:14,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:14,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:17,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:19,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:19,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 744 [2020-10-14 03:47:19,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:47:19,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-14 03:47:19,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:19,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:19,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:19,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 356 [2020-10-14 03:47:19,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:47:19,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:19,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:19,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:19,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:19,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:19,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:19,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:19,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:47:19,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:19,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:19,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:19,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:19,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:19,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:19,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:19,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:19,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:19,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:19,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:47:19,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:19,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 03:47:19,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:19,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:19,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:19,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:19,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:19,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:19,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:47:19,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:19,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:19,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:19,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 03:47:19,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:19,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 03:47:19,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:19,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:19,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:19,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:19,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 03:47:19,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:19,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-14 03:47:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:19,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:19,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:19,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:47:19,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:19,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-14 03:47:19,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:19,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:19,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:19,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:19,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:47:19,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:19,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2020-10-14 03:47:19,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:19,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:19,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:19,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:47:19,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:19,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 03:47:19,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:19,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:19,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:19,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:47:19,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:19,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:19,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 606 [2020-10-14 03:47:20,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:20,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:20,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:20,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:47:20,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:20,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 03:47:20,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:20,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:20,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:20,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 03:47:20,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:20,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:20,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1182 backedges. 499 proven. 178 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2020-10-14 03:47:20,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1158356102] [2020-10-14 03:47:20,250 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:20,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:20,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774921318] [2020-10-14 03:47:20,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:20,251 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:20,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:20,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:20,251 INFO L87 Difference]: Start difference. First operand 15394 states and 16722 transitions. Second operand 7 states. [2020-10-14 03:47:23,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:23,377 INFO L93 Difference]: Finished difference Result 33485 states and 36661 transitions. [2020-10-14 03:47:23,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:47:23,378 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 726 [2020-10-14 03:47:23,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:23,421 INFO L225 Difference]: With dead ends: 33485 [2020-10-14 03:47:23,421 INFO L226 Difference]: Without dead ends: 18777 [2020-10-14 03:47:23,444 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 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 03:47:23,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18777 states. [2020-10-14 03:47:23,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18777 to 18436. [2020-10-14 03:47:23,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18436 states. [2020-10-14 03:47:23,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18436 states to 18436 states and 20132 transitions. [2020-10-14 03:47:23,843 INFO L78 Accepts]: Start accepts. Automaton has 18436 states and 20132 transitions. Word has length 726 [2020-10-14 03:47:23,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:23,844 INFO L479 AbstractCegarLoop]: Abstraction has 18436 states and 20132 transitions. [2020-10-14 03:47:23,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:23,844 INFO L276 IsEmpty]: Start isEmpty. Operand 18436 states and 20132 transitions. [2020-10-14 03:47:23,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 819 [2020-10-14 03:47:23,878 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:23,880 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:47:23,881 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 03:47:23,881 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:23,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:23,881 INFO L82 PathProgramCache]: Analyzing trace with hash -132624554, now seen corresponding path program 1 times [2020-10-14 03:47:23,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:23,882 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1544822277] [2020-10-14 03:47:23,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:23,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:24,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:24,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:24,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:24,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:24,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:25,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:29,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:29,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 836 [2020-10-14 03:47:29,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:47:29,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-10-14 03:47:29,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:29,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:29,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:29,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 330 [2020-10-14 03:47:29,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:47:29,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:29,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:29,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:29,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:29,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:29,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:29,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:29,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:47:29,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:29,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:29,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:29,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:29,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:29,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:29,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:29,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:29,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:29,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:29,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:47:29,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:29,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 03:47:29,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:29,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:29,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:29,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:29,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:29,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:29,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:47:29,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:29,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:29,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:29,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:47:29,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:29,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 03:47:29,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:29,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:29,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:29,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:29,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 03:47:29,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:29,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 03:47:29,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:29,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:29,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:29,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:47:29,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:29,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-14 03:47:29,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:29,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:29,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:29,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:29,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:47:29,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:29,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 588 [2020-10-14 03:47:29,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:29,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:29,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:29,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:47:29,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:29,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 03:47:29,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:29,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:29,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:29,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:47:29,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:29,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:29,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 698 [2020-10-14 03:47:29,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:29,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:29,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:29,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:47:29,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:29,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 03:47:29,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:29,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:29,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:29,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 03:47:29,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:29,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:30,479 INFO L134 CoverageAnalysis]: Checked inductivity of 1206 backedges. 578 proven. 178 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2020-10-14 03:47:30,480 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1544822277] [2020-10-14 03:47:30,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:30,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:30,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935692985] [2020-10-14 03:47:30,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:30,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:30,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:30,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:30,482 INFO L87 Difference]: Start difference. First operand 18436 states and 20132 transitions. Second operand 7 states. [2020-10-14 03:47:33,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:33,868 INFO L93 Difference]: Finished difference Result 36530 states and 39920 transitions. [2020-10-14 03:47:33,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 03:47:33,869 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 818 [2020-10-14 03:47:33,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:33,913 INFO L225 Difference]: With dead ends: 36530 [2020-10-14 03:47:33,914 INFO L226 Difference]: Without dead ends: 18780 [2020-10-14 03:47:33,939 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 03:47:33,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18780 states. [2020-10-14 03:47:34,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18780 to 18778. [2020-10-14 03:47:34,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18778 states. [2020-10-14 03:47:34,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18778 states to 18778 states and 20471 transitions. [2020-10-14 03:47:34,248 INFO L78 Accepts]: Start accepts. Automaton has 18778 states and 20471 transitions. Word has length 818 [2020-10-14 03:47:34,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:34,249 INFO L479 AbstractCegarLoop]: Abstraction has 18778 states and 20471 transitions. [2020-10-14 03:47:34,250 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:34,250 INFO L276 IsEmpty]: Start isEmpty. Operand 18778 states and 20471 transitions. [2020-10-14 03:47:34,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 820 [2020-10-14 03:47:34,280 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:34,281 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:47:34,281 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 03:47:34,281 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:34,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:34,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1791620999, now seen corresponding path program 1 times [2020-10-14 03:47:34,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:34,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [429305407] [2020-10-14 03:47:34,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:34,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:34,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:34,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:34,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:35,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:36,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:38,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:39,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:39,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 837 [2020-10-14 03:47:39,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:47:39,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-14 03:47:39,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:39,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:39,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:39,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 331 [2020-10-14 03:47:39,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:47:39,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:39,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:39,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:39,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:39,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:39,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:39,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:47:39,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:39,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:39,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:39,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:39,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:39,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:39,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:39,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:39,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:39,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:39,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:47:39,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:39,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 03:47:39,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:39,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:39,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:39,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:39,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:39,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:39,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:47:39,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:39,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:39,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:39,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:47:39,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:39,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 03:47:39,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:39,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:39,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:39,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:39,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 03:47:39,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:39,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-14 03:47:39,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:39,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:40,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:40,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:47:40,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:40,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-14 03:47:40,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:40,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:40,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:40,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:40,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:47:40,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:40,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 589 [2020-10-14 03:47:40,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:40,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:40,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:40,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:47:40,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:40,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 03:47:40,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:40,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:40,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:40,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:47:40,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:40,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:40,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 699 [2020-10-14 03:47:40,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:40,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:40,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:40,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:47:40,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:40,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 03:47:40,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:40,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:40,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:40,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 03:47:40,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:40,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:40,902 INFO L134 CoverageAnalysis]: Checked inductivity of 1210 backedges. 579 proven. 178 refuted. 0 times theorem prover too weak. 453 trivial. 0 not checked. [2020-10-14 03:47:40,902 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [429305407] [2020-10-14 03:47:40,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:40,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:40,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482696817] [2020-10-14 03:47:40,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:40,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:40,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:40,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:40,905 INFO L87 Difference]: Start difference. First operand 18778 states and 20471 transitions. Second operand 7 states. [2020-10-14 03:47:44,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:44,224 INFO L93 Difference]: Finished difference Result 37441 states and 41716 transitions. [2020-10-14 03:47:44,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:47:44,225 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 819 [2020-10-14 03:47:44,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:44,279 INFO L225 Difference]: With dead ends: 37441 [2020-10-14 03:47:44,279 INFO L226 Difference]: Without dead ends: 19349 [2020-10-14 03:47:44,307 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:47:44,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19349 states. [2020-10-14 03:47:44,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19349 to 19125. [2020-10-14 03:47:44,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19125 states. [2020-10-14 03:47:44,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19125 states to 19125 states and 20849 transitions. [2020-10-14 03:47:44,669 INFO L78 Accepts]: Start accepts. Automaton has 19125 states and 20849 transitions. Word has length 819 [2020-10-14 03:47:44,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:44,670 INFO L479 AbstractCegarLoop]: Abstraction has 19125 states and 20849 transitions. [2020-10-14 03:47:44,670 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:44,670 INFO L276 IsEmpty]: Start isEmpty. Operand 19125 states and 20849 transitions. [2020-10-14 03:47:44,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 845 [2020-10-14 03:47:44,701 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:44,703 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:47:44,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 03:47:44,704 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:44,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:44,704 INFO L82 PathProgramCache]: Analyzing trace with hash -2092755326, now seen corresponding path program 1 times [2020-10-14 03:47:44,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:44,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1004993120] [2020-10-14 03:47:44,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:44,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:45,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:45,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:45,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:48,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:49,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:49,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 862 [2020-10-14 03:47:49,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:47:49,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-14 03:47:49,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:49,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:49,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:49,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 356 [2020-10-14 03:47:49,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:47:49,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:49,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:49,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:49,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:49,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:49,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:49,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:47:49,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:49,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:49,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:49,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:49,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:49,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:50,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:50,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:50,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:50,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:50,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:47:50,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:50,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 03:47:50,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:50,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:50,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:50,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:50,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:50,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:50,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:47:50,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:50,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:50,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:50,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 03:47:50,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:50,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 03:47:50,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:50,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:50,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:50,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:50,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 03:47:50,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:50,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-14 03:47:50,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:50,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:50,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:50,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:47:50,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:50,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-10-14 03:47:50,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:50,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:50,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:50,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:50,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:47:50,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:50,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 614 [2020-10-14 03:47:50,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:50,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:50,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:50,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:47:50,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:50,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 03:47:50,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:50,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:50,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:50,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:47:50,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:50,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:50,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 724 [2020-10-14 03:47:50,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:50,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:50,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:50,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:47:50,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:50,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 03:47:50,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:50,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:50,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:50,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 03:47:50,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:50,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:51,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1287 backedges. 604 proven. 178 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2020-10-14 03:47:51,632 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1004993120] [2020-10-14 03:47:51,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:51,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:51,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691865687] [2020-10-14 03:47:51,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:51,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:51,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:51,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:51,634 INFO L87 Difference]: Start difference. First operand 19125 states and 20849 transitions. Second operand 7 states. [2020-10-14 03:47:55,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:55,022 INFO L93 Difference]: Finished difference Result 39616 states and 43307 transitions. [2020-10-14 03:47:55,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:47:55,023 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 844 [2020-10-14 03:47:55,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:55,071 INFO L225 Difference]: With dead ends: 39616 [2020-10-14 03:47:55,071 INFO L226 Difference]: Without dead ends: 21177 [2020-10-14 03:47:55,099 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:47:55,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21177 states. [2020-10-14 03:47:55,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21177 to 20832. [2020-10-14 03:47:55,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20832 states. [2020-10-14 03:47:55,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20832 states to 20832 states and 22706 transitions. [2020-10-14 03:47:55,419 INFO L78 Accepts]: Start accepts. Automaton has 20832 states and 22706 transitions. Word has length 844 [2020-10-14 03:47:55,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:55,420 INFO L479 AbstractCegarLoop]: Abstraction has 20832 states and 22706 transitions. [2020-10-14 03:47:55,420 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:55,420 INFO L276 IsEmpty]: Start isEmpty. Operand 20832 states and 22706 transitions. [2020-10-14 03:47:55,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 886 [2020-10-14 03:47:55,440 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:55,441 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:47:55,441 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 03:47:55,441 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:55,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:55,441 INFO L82 PathProgramCache]: Analyzing trace with hash -975798112, now seen corresponding path program 1 times [2020-10-14 03:47:55,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:55,442 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1232079585] [2020-10-14 03:47:55,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:55,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:55,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:55,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:55,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:55,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:56,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:00,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:00,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 901 [2020-10-14 03:48:00,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:48:00,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-10-14 03:48:00,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:00,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:00,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:00,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-14 03:48:00,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 198 [2020-10-14 03:48:00,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:00,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:00,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:00,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:00,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:00,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:00,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:00,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:48:00,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:00,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:00,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:00,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:00,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:00,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:00,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:00,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:00,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:00,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:00,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:48:00,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:00,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-14 03:48:00,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:00,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:00,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:00,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:00,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-14 03:48:00,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:00,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:48:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:00,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:01,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:01,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 03:48:01,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:01,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-14 03:48:01,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:01,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:01,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:01,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:01,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 196 [2020-10-14 03:48:01,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:01,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2020-10-14 03:48:01,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:01,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:01,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:01,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:48:01,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:01,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 03:48:01,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:01,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:01,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:01,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 03:48:01,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:01,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:01,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 725 [2020-10-14 03:48:01,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:01,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:01,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:01,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 03:48:01,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:01,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 03:48:01,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:01,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:01,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:01,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 03:48:01,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:01,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:01,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1171 backedges. 396 proven. 303 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2020-10-14 03:48:01,860 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1232079585] [2020-10-14 03:48:01,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:01,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:01,861 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799647546] [2020-10-14 03:48:01,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:01,862 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:01,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:01,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:01,862 INFO L87 Difference]: Start difference. First operand 20832 states and 22706 transitions. Second operand 7 states. [2020-10-14 03:48:05,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:05,697 INFO L93 Difference]: Finished difference Result 43268 states and 48537 transitions. [2020-10-14 03:48:05,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:48:05,698 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 885 [2020-10-14 03:48:05,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:05,761 INFO L225 Difference]: With dead ends: 43268 [2020-10-14 03:48:05,761 INFO L226 Difference]: Without dead ends: 23122 [2020-10-14 03:48:05,794 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:48:05,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23122 states. [2020-10-14 03:48:06,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23122 to 22523. [2020-10-14 03:48:06,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22523 states. [2020-10-14 03:48:06,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22523 states to 22523 states and 24624 transitions. [2020-10-14 03:48:06,175 INFO L78 Accepts]: Start accepts. Automaton has 22523 states and 24624 transitions. Word has length 885 [2020-10-14 03:48:06,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:06,176 INFO L479 AbstractCegarLoop]: Abstraction has 22523 states and 24624 transitions. [2020-10-14 03:48:06,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:06,176 INFO L276 IsEmpty]: Start isEmpty. Operand 22523 states and 24624 transitions. [2020-10-14 03:48:06,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 903 [2020-10-14 03:48:06,190 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:06,191 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:48:06,191 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 03:48:06,192 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:06,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:06,192 INFO L82 PathProgramCache]: Analyzing trace with hash -2015192954, now seen corresponding path program 1 times [2020-10-14 03:48:06,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:06,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [367854274] [2020-10-14 03:48:06,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:06,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:06,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:06,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:07,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:08,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:09,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:11,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:11,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 920 [2020-10-14 03:48:11,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:48:11,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-10-14 03:48:11,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:11,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:11,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:11,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 414 [2020-10-14 03:48:11,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:48:11,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:11,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:11,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:11,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:11,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:11,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:11,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:48:11,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:11,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:11,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:11,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:11,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:11,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:11,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:11,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:11,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:11,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:11,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:48:11,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:11,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 03:48:11,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:11,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:11,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:11,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:11,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:11,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:11,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:48:11,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:11,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:11,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:11,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 03:48:11,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:11,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 03:48:11,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:11,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:11,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:11,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:11,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-14 03:48:11,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:11,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2020-10-14 03:48:11,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:11,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:11,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:11,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:48:11,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:11,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-10-14 03:48:11,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:11,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:11,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:11,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:11,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:48:11,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:11,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 672 [2020-10-14 03:48:12,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:12,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:12,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:12,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:48:12,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:12,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 03:48:12,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:12,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:12,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:12,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:48:12,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:12,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:12,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 782 [2020-10-14 03:48:12,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:12,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:12,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:12,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:48:12,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:12,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 03:48:12,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:12,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:12,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:12,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 03:48:12,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:12,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:12,634 INFO L134 CoverageAnalysis]: Checked inductivity of 1428 backedges. 662 proven. 178 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2020-10-14 03:48:12,634 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [367854274] [2020-10-14 03:48:12,634 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:12,635 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:12,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363334463] [2020-10-14 03:48:12,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:12,636 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:12,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:12,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:12,636 INFO L87 Difference]: Start difference. First operand 22523 states and 24624 transitions. Second operand 7 states. [2020-10-14 03:48:15,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:15,538 INFO L93 Difference]: Finished difference Result 44364 states and 48547 transitions. [2020-10-14 03:48:15,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:48:15,539 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 902 [2020-10-14 03:48:15,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:15,586 INFO L225 Difference]: With dead ends: 44364 [2020-10-14 03:48:15,586 INFO L226 Difference]: Without dead ends: 22527 [2020-10-14 03:48:15,612 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:48:15,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22527 states. [2020-10-14 03:48:15,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22527 to 22521. [2020-10-14 03:48:15,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22521 states. [2020-10-14 03:48:15,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22521 states to 22521 states and 24268 transitions. [2020-10-14 03:48:15,905 INFO L78 Accepts]: Start accepts. Automaton has 22521 states and 24268 transitions. Word has length 902 [2020-10-14 03:48:15,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:15,905 INFO L479 AbstractCegarLoop]: Abstraction has 22521 states and 24268 transitions. [2020-10-14 03:48:15,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:15,905 INFO L276 IsEmpty]: Start isEmpty. Operand 22521 states and 24268 transitions. [2020-10-14 03:48:15,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 967 [2020-10-14 03:48:15,927 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:15,928 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:48:15,928 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 03:48:15,928 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:15,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:15,929 INFO L82 PathProgramCache]: Analyzing trace with hash -2025573443, now seen corresponding path program 1 times [2020-10-14 03:48:15,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:15,930 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [42057388] [2020-10-14 03:48:15,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:16,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:16,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:16,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:17,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:21,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:21,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 982 [2020-10-14 03:48:21,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:48:21,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 03:48:21,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:21,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:21,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:21,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 537 [2020-10-14 03:48:21,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:48:21,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:21,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:21,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:21,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:21,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:21,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:21,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:21,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:48:21,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:21,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:21,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:21,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:21,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:21,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:21,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:21,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:21,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:21,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:21,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:48:21,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:21,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 03:48:21,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:21,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:21,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:21,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:21,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:21,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:21,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:48:21,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:21,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:21,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:21,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:48:21,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:21,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-14 03:48:21,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:21,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:21,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:21,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:21,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 271 [2020-10-14 03:48:21,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:21,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:48:21,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:21,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:21,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:21,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:48:21,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:21,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-10-14 03:48:21,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:21,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:21,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:21,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:21,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:48:21,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:22,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 806 [2020-10-14 03:48:22,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:22,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:22,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:22,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 03:48:22,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:22,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 03:48:22,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:22,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:22,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:22,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 03:48:22,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:22,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:22,859 INFO L134 CoverageAnalysis]: Checked inductivity of 1303 backedges. 725 proven. 111 refuted. 0 times theorem prover too weak. 467 trivial. 0 not checked. [2020-10-14 03:48:22,860 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [42057388] [2020-10-14 03:48:22,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:22,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:22,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29695668] [2020-10-14 03:48:22,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:22,862 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:22,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:22,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:22,862 INFO L87 Difference]: Start difference. First operand 22521 states and 24268 transitions. Second operand 7 states. [2020-10-14 03:48:27,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:27,549 INFO L93 Difference]: Finished difference Result 44695 states and 48175 transitions. [2020-10-14 03:48:27,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:48:27,550 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 966 [2020-10-14 03:48:27,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:27,595 INFO L225 Difference]: With dead ends: 44695 [2020-10-14 03:48:27,595 INFO L226 Difference]: Without dead ends: 22860 [2020-10-14 03:48:27,617 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:48:27,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22860 states. [2020-10-14 03:48:27,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22860 to 22521. [2020-10-14 03:48:27,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22521 states. [2020-10-14 03:48:27,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22521 states to 22521 states and 24256 transitions. [2020-10-14 03:48:27,882 INFO L78 Accepts]: Start accepts. Automaton has 22521 states and 24256 transitions. Word has length 966 [2020-10-14 03:48:27,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:27,883 INFO L479 AbstractCegarLoop]: Abstraction has 22521 states and 24256 transitions. [2020-10-14 03:48:27,883 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:27,883 INFO L276 IsEmpty]: Start isEmpty. Operand 22521 states and 24256 transitions. [2020-10-14 03:48:27,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1081 [2020-10-14 03:48:27,907 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:27,908 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:48:27,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 03:48:27,908 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:27,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:27,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1707062099, now seen corresponding path program 1 times [2020-10-14 03:48:27,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:27,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [94087069] [2020-10-14 03:48:27,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:27,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:28,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:28,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:28,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:30,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:32,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:33,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:33,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1100 [2020-10-14 03:48:33,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:48:33,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-14 03:48:33,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:33,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:33,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:33,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 655 [2020-10-14 03:48:33,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:48:33,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:33,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:33,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:33,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:33,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:33,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:33,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:33,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:48:33,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:33,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:33,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:33,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:33,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:33,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 03:48:33,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:33,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:33,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:33,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:33,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:48:33,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:33,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 03:48:33,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:33,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:33,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:33,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:33,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:33,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:48:33,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:48:33,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:33,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:33,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:33,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-14 03:48:33,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:33,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 03:48:33,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:33,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:33,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:33,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:33,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:33,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-10-14 03:48:33,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2020-10-14 03:48:33,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:33,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:33,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:33,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 03:48:33,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:33,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 03:48:33,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:33,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:33,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:33,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:33,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:33,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:48:33,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-14 03:48:33,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:33,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:33,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:33,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:48:33,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:33,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-14 03:48:33,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:33,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:33,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:33,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:33,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 03:48:33,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:48:33,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 647 [2020-10-14 03:48:34,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:34,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:34,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:34,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:48:34,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:34,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 642 [2020-10-14 03:48:34,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:34,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:34,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:34,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:34,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:48:34,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:35,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 920 [2020-10-14 03:48:35,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:35,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:35,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:35,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 03:48:35,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:35,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 03:48:35,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:35,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:35,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:35,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 03:48:35,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:35,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:36,362 INFO L134 CoverageAnalysis]: Checked inductivity of 2194 backedges. 952 proven. 111 refuted. 0 times theorem prover too weak. 1131 trivial. 0 not checked. [2020-10-14 03:48:36,362 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [94087069] [2020-10-14 03:48:36,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:36,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:36,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702384841] [2020-10-14 03:48:36,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:36,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:36,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:36,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:36,365 INFO L87 Difference]: Start difference. First operand 22521 states and 24256 transitions. Second operand 7 states. [2020-10-14 03:48:40,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:40,088 INFO L93 Difference]: Finished difference Result 45312 states and 49752 transitions. [2020-10-14 03:48:40,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:48:40,090 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1080 [2020-10-14 03:48:40,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:40,145 INFO L225 Difference]: With dead ends: 45312 [2020-10-14 03:48:40,145 INFO L226 Difference]: Without dead ends: 23477 [2020-10-14 03:48:40,180 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 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 03:48:40,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23477 states. [2020-10-14 03:48:40,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23477 to 23201. [2020-10-14 03:48:40,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23201 states. [2020-10-14 03:48:40,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23201 states to 23201 states and 24955 transitions. [2020-10-14 03:48:40,598 INFO L78 Accepts]: Start accepts. Automaton has 23201 states and 24955 transitions. Word has length 1080 [2020-10-14 03:48:40,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:40,600 INFO L479 AbstractCegarLoop]: Abstraction has 23201 states and 24955 transitions. [2020-10-14 03:48:40,600 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:40,600 INFO L276 IsEmpty]: Start isEmpty. Operand 23201 states and 24955 transitions. [2020-10-14 03:48:40,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1154 [2020-10-14 03:48:40,634 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:40,635 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:48:40,636 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 03:48:40,636 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:40,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:40,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1373917453, now seen corresponding path program 1 times [2020-10-14 03:48:40,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:40,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1628818834] [2020-10-14 03:48:40,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:40,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:40,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:41,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:41,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:41,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:41,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:45,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:45,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1171 [2020-10-14 03:48:45,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:48:45,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-14 03:48:45,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:45,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:45,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:45,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 462 [2020-10-14 03:48:45,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:48:45,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:45,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:45,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:45,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:45,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:45,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:45,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:45,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:48:45,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:45,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:45,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:45,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:45,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:45,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:45,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:45,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:45,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:46,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:46,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:48:46,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:46,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 03:48:46,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:46,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:46,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:46,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:46,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:46,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:46,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:48:46,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:46,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:46,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:46,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-14 03:48:46,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:46,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 03:48:46,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:46,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:46,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:46,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:46,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 196 [2020-10-14 03:48:46,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:46,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2020-10-14 03:48:46,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:46,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:46,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:46,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:48:46,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:46,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 453 [2020-10-14 03:48:46,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:46,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:46,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:46,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:46,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:48:46,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:48:47,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 720 [2020-10-14 03:48:47,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:47,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:47,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:47,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:48:47,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:47,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-14 03:48:47,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:47,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:47,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:47,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 03:48:47,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:47,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:47,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 993 [2020-10-14 03:48:47,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:47,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:47,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:47,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 03:48:47,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:47,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 03:48:47,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:47,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:47,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:47,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 03:48:47,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:47,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:48,562 INFO L134 CoverageAnalysis]: Checked inductivity of 2056 backedges. 710 proven. 370 refuted. 0 times theorem prover too weak. 976 trivial. 0 not checked. [2020-10-14 03:48:48,563 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1628818834] [2020-10-14 03:48:48,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:48,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:48,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483822789] [2020-10-14 03:48:48,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:48,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:48,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:48,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:48,567 INFO L87 Difference]: Start difference. First operand 23201 states and 24955 transitions. Second operand 7 states. [2020-10-14 03:48:52,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:52,420 INFO L93 Difference]: Finished difference Result 48757 states and 52482 transitions. [2020-10-14 03:48:52,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:48:52,421 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1153 [2020-10-14 03:48:52,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:52,461 INFO L225 Difference]: With dead ends: 48757 [2020-10-14 03:48:52,461 INFO L226 Difference]: Without dead ends: 26242 [2020-10-14 03:48:52,483 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:48:52,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26242 states. [2020-10-14 03:48:52,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26242 to 24886. [2020-10-14 03:48:52,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24886 states. [2020-10-14 03:48:52,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24886 states to 24886 states and 26713 transitions. [2020-10-14 03:48:52,818 INFO L78 Accepts]: Start accepts. Automaton has 24886 states and 26713 transitions. Word has length 1153 [2020-10-14 03:48:52,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:52,819 INFO L479 AbstractCegarLoop]: Abstraction has 24886 states and 26713 transitions. [2020-10-14 03:48:52,819 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:52,819 INFO L276 IsEmpty]: Start isEmpty. Operand 24886 states and 26713 transitions. [2020-10-14 03:48:52,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1178 [2020-10-14 03:48:52,847 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:52,847 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:48:52,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 03:48:52,847 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:52,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:52,848 INFO L82 PathProgramCache]: Analyzing trace with hash -1602659734, now seen corresponding path program 1 times [2020-10-14 03:48:52,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:52,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [680469373] [2020-10-14 03:48:52,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:53,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:53,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:53,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:53,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:55,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:56,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:58,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:58,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1197 [2020-10-14 03:48:58,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:48:58,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-14 03:48:58,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:58,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:58,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 03:48:58,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 812 [2020-10-14 03:48:58,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 384 [2020-10-14 03:48:58,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:58,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:58,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:58,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:58,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:58,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:58,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:58,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:48:58,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:58,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:58,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:58,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:58,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:58,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:58,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:58,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:58,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:58,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:58,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:48:58,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:58,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 03:48:58,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:58,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:58,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:58,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:58,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:58,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:58,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:48:58,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:58,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:58,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:58,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:48:58,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:58,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 03:48:58,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:58,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:58,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:58,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:58,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:58,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:58,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:48:58,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:58,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:58,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:58,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:48:58,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:58,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 03:48:58,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:58,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:58,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:58,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:58,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:58,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:48:58,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:48:58,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:58,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:58,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:58,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:48:58,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:58,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-14 03:48:58,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:58,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:58,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:58,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:58,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-14 03:48:58,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:59,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 804 [2020-10-14 03:48:59,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:59,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:59,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:59,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:59,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:48:59,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:48:59,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-14 03:48:59,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:59,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:59,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:59,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:59,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 03:48:59,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:48:59,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 914 [2020-10-14 03:48:59,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:59,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:59,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:59,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:59,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:48:59,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:48:59,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 300 [2020-10-14 03:48:59,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:59,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:59,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:59,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:59,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 210 [2020-10-14 03:48:59,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:00,278 INFO L134 CoverageAnalysis]: Checked inductivity of 2392 backedges. 333 proven. 6 refuted. 0 times theorem prover too weak. 2053 trivial. 0 not checked. [2020-10-14 03:49:00,279 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [680469373] [2020-10-14 03:49:00,279 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:00,279 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 03:49:00,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938275152] [2020-10-14 03:49:00,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:49:00,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:00,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:49:00,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:49:00,281 INFO L87 Difference]: Start difference. First operand 24886 states and 26713 transitions. Second operand 5 states. [2020-10-14 03:49:02,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:02,944 INFO L93 Difference]: Finished difference Result 48747 states and 52372 transitions. [2020-10-14 03:49:02,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:49:02,945 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1177 [2020-10-14 03:49:02,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:02,981 INFO L225 Difference]: With dead ends: 48747 [2020-10-14 03:49:02,981 INFO L226 Difference]: Without dead ends: 24547 [2020-10-14 03:49:03,005 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:49:03,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24547 states. [2020-10-14 03:49:03,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24547 to 24547. [2020-10-14 03:49:03,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24547 states. [2020-10-14 03:49:03,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24547 states to 24547 states and 26051 transitions. [2020-10-14 03:49:03,259 INFO L78 Accepts]: Start accepts. Automaton has 24547 states and 26051 transitions. Word has length 1177 [2020-10-14 03:49:03,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:03,260 INFO L479 AbstractCegarLoop]: Abstraction has 24547 states and 26051 transitions. [2020-10-14 03:49:03,261 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:49:03,261 INFO L276 IsEmpty]: Start isEmpty. Operand 24547 states and 26051 transitions. [2020-10-14 03:49:03,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1250 [2020-10-14 03:49:03,286 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:03,287 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:49:03,287 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 03:49:03,287 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:03,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:03,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1164179227, now seen corresponding path program 1 times [2020-10-14 03:49:03,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:03,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1248661883] [2020-10-14 03:49:03,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:03,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:03,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:04,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:09,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:09,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1271 [2020-10-14 03:49:09,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:49:09,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5793 [2020-10-14 03:49:09,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:09,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:09,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:09,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1141 [2020-10-14 03:49:09,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 03:49:09,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:09,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:09,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:09,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:09,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:09,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:09,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:09,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:49:09,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:09,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:09,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:09,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:09,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:09,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:09,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:09,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:09,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:09,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:09,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:49:09,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:09,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 03:49:09,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:09,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:09,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:09,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:09,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:09,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:09,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:49:09,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:09,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:09,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:09,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:49:09,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:09,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 03:49:09,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:09,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:09,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:09,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:09,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:09,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:09,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:49:09,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:09,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:09,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:09,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:49:09,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:09,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 03:49:09,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:09,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:09,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:09,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:09,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:09,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:09,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:49:09,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:09,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:09,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:09,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:49:09,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:09,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 03:49:09,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:09,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:09,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:09,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:09,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:09,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:09,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 804 [2020-10-14 03:49:09,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:09,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:09,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:09,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:49:09,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:09,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 03:49:09,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:09,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:09,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:09,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:09,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:09,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:09,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 914 [2020-10-14 03:49:09,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:09,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:09,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:09,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:49:09,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:09,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-14 03:49:09,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:09,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:09,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:09,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:09,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 210 [2020-10-14 03:49:09,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:10,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1129 [2020-10-14 03:49:10,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:10,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:10,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:10,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:49:10,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:10,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 03:49:10,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:10,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:10,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:10,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:10,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 03:49:10,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:10,819 INFO L134 CoverageAnalysis]: Checked inductivity of 2873 backedges. 782 proven. 2 refuted. 0 times theorem prover too weak. 2089 trivial. 0 not checked. [2020-10-14 03:49:10,820 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1248661883] [2020-10-14 03:49:10,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:10,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:49:10,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708114423] [2020-10-14 03:49:10,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:49:10,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:10,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:49:10,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:49:10,821 INFO L87 Difference]: Start difference. First operand 24547 states and 26051 transitions. Second operand 7 states. [2020-10-14 03:49:14,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:14,411 INFO L93 Difference]: Finished difference Result 49035 states and 52825 transitions. [2020-10-14 03:49:14,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:49:14,412 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1249 [2020-10-14 03:49:14,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:14,463 INFO L225 Difference]: With dead ends: 49035 [2020-10-14 03:49:14,463 INFO L226 Difference]: Without dead ends: 24831 [2020-10-14 03:49:14,489 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 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 03:49:14,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24831 states. [2020-10-14 03:49:14,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24831 to 22860. [2020-10-14 03:49:14,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22860 states. [2020-10-14 03:49:14,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22860 states to 22860 states and 23963 transitions. [2020-10-14 03:49:14,837 INFO L78 Accepts]: Start accepts. Automaton has 22860 states and 23963 transitions. Word has length 1249 [2020-10-14 03:49:14,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:14,839 INFO L479 AbstractCegarLoop]: Abstraction has 22860 states and 23963 transitions. [2020-10-14 03:49:14,839 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:49:14,839 INFO L276 IsEmpty]: Start isEmpty. Operand 22860 states and 23963 transitions. [2020-10-14 03:49:14,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1296 [2020-10-14 03:49:14,879 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:14,881 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:49:14,882 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 03:49:14,882 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:14,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:14,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1622556060, now seen corresponding path program 1 times [2020-10-14 03:49:14,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:14,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1144133760] [2020-10-14 03:49:14,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:15,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:15,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:15,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:16,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:20,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:20,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1315 [2020-10-14 03:49:20,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:49:20,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 03:49:20,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:20,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:20,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:20,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1087 [2020-10-14 03:49:20,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-14 03:49:20,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:20,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:20,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:20,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:20,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:20,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:20,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:20,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:49:20,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:20,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:20,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:20,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:20,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:20,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:20,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:20,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:20,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:20,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:20,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:49:20,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:20,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 03:49:20,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:20,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:20,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:20,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:20,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:20,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:20,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:49:20,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:20,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:20,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:20,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:49:20,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:20,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-14 03:49:20,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:20,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:20,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:20,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:20,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:20,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0