/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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_label46.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 22:19:27,997 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 22:19:28,001 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 22:19:28,046 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 22:19:28,046 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 22:19:28,055 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 22:19:28,057 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 22:19:28,060 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 22:19:28,063 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 22:19:28,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 22:19:28,067 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 22:19:28,068 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 22:19:28,068 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 22:19:28,071 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 22:19:28,073 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 22:19:28,074 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 22:19:28,076 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 22:19:28,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 22:19:28,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 22:19:28,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 22:19:28,088 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 22:19:28,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 22:19:28,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 22:19:28,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 22:19:28,103 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 22:19:28,103 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 22:19:28,103 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 22:19:28,110 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 22:19:28,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 22:19:28,111 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 22:19:28,111 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 22:19:28,112 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 22:19:28,116 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 22:19:28,117 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 22:19:28,118 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 22:19:28,118 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 22:19:28,122 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 22:19:28,122 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 22:19:28,122 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 22:19:28,123 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 22:19:28,124 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 22:19:28,124 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 22:19:28,145 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 22:19:28,146 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 22:19:28,147 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 22:19:28,147 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 22:19:28,148 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 22:19:28,148 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 22:19:28,148 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 22:19:28,148 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 22:19:28,148 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 22:19:28,148 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 22:19:28,149 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 22:19:28,149 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 22:19:28,149 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 22:19:28,149 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 22:19:28,149 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 22:19:28,150 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 22:19:28,150 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 22:19:28,150 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 22:19:28,150 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 22:19:28,150 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 22:19:28,150 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 22:19:28,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:19:28,151 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 22:19:28,151 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 22:19:28,151 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 22:19:28,151 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 22:19:28,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 22:19:28,152 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 22:19:28,152 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 22:19:28,152 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 22:19:28,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 22:19:28,467 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 22:19:28,471 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 22:19:28,472 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 22:19:28,473 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 22:19:28,473 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label46.c [2020-10-14 22:19:28,535 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ce93a6a3d/5b984da777434911830ba1231faf54d7/FLAGfd429e984 [2020-10-14 22:19:29,179 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 22:19:29,180 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label46.c [2020-10-14 22:19:29,201 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ce93a6a3d/5b984da777434911830ba1231faf54d7/FLAGfd429e984 [2020-10-14 22:19:29,377 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ce93a6a3d/5b984da777434911830ba1231faf54d7 [2020-10-14 22:19:29,385 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 22:19:29,387 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 22:19:29,388 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 22:19:29,388 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 22:19:29,392 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 22:19:29,393 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:19:29" (1/1) ... [2020-10-14 22:19:29,396 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8099dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:29, skipping insertion in model container [2020-10-14 22:19:29,396 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:19:29" (1/1) ... [2020-10-14 22:19:29,404 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 22:19:29,498 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 22:19:30,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:19:30,301 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 22:19:30,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:19:30,811 INFO L208 MainTranslator]: Completed translation [2020-10-14 22:19:30,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:30 WrapperNode [2020-10-14 22:19:30,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 22:19:30,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 22:19:30,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 22:19:30,814 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 22:19:30,834 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:30" (1/1) ... [2020-10-14 22:19:30,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:30" (1/1) ... [2020-10-14 22:19:30,893 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:30" (1/1) ... [2020-10-14 22:19:30,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:30" (1/1) ... [2020-10-14 22:19:30,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:30" (1/1) ... [2020-10-14 22:19:31,004 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:30" (1/1) ... [2020-10-14 22:19:31,018 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:30" (1/1) ... [2020-10-14 22:19:31,033 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 22:19:31,034 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 22:19:31,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 22:19:31,034 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 22:19:31,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:30" (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 22:19:31,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 22:19:31,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 22:19:31,116 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 22:19:31,117 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 22:19:31,117 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 22:19:31,118 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 22:19:31,118 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 22:19:31,119 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 22:19:31,119 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 22:19:31,120 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 22:19:31,120 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 22:19:31,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 22:19:31,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 22:19:35,776 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 22:19:35,776 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 22:19:35,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:19:35 BoogieIcfgContainer [2020-10-14 22:19:35,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 22:19:35,786 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 22:19:35,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 22:19:35,789 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 22:19:35,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:19:29" (1/3) ... [2020-10-14 22:19:35,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@250ae28e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:19:35, skipping insertion in model container [2020-10-14 22:19:35,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:30" (2/3) ... [2020-10-14 22:19:35,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@250ae28e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:19:35, skipping insertion in model container [2020-10-14 22:19:35,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:19:35" (3/3) ... [2020-10-14 22:19:35,793 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label46.c [2020-10-14 22:19:35,804 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 22:19:35,812 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 22:19:35,827 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 22:19:35,855 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 22:19:35,855 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 22:19:35,855 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 22:19:35,855 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 22:19:35,856 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 22:19:35,856 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 22:19:35,856 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 22:19:35,856 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 22:19:35,884 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 22:19:35,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-14 22:19:35,891 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:19:35,892 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] [2020-10-14 22:19:35,893 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:19:35,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:19:35,899 INFO L82 PathProgramCache]: Analyzing trace with hash -195621283, now seen corresponding path program 1 times [2020-10-14 22:19:35,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:19:35,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [652236656] [2020-10-14 22:19:35,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:19:36,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:36,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:36,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:36,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 22:19:36,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:36,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-10-14 22:19:36,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:36,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:36,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:19:36,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:19:36,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 22:19:36,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:19:36,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:19:36,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:36,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:36,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:36,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:19:36,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:36,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 22:19:36,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:36,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:36,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:36,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:36,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:19:36,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:36,491 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 22:19:36,492 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [652236656] [2020-10-14 22:19:36,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:19:36,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 22:19:36,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985296630] [2020-10-14 22:19:36,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 22:19:36,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:19:36,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 22:19:36,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 22:19:36,518 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-14 22:19:40,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:19:40,897 INFO L93 Difference]: Finished difference Result 1184 states and 2180 transitions. [2020-10-14 22:19:40,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:19:40,899 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-10-14 22:19:40,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:19:40,920 INFO L225 Difference]: With dead ends: 1184 [2020-10-14 22:19:40,921 INFO L226 Difference]: Without dead ends: 696 [2020-10-14 22:19:40,931 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 22:19:40,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-14 22:19:41,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 689. [2020-10-14 22:19:41,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2020-10-14 22:19:41,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1155 transitions. [2020-10-14 22:19:41,030 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1155 transitions. Word has length 22 [2020-10-14 22:19:41,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:19:41,030 INFO L479 AbstractCegarLoop]: Abstraction has 689 states and 1155 transitions. [2020-10-14 22:19:41,031 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 22:19:41,031 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1155 transitions. [2020-10-14 22:19:41,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-14 22:19:41,035 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:19:41,036 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 22:19:41,036 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 22:19:41,036 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:19:41,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:19:41,037 INFO L82 PathProgramCache]: Analyzing trace with hash -1458421988, now seen corresponding path program 1 times [2020-10-14 22:19:41,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:19:41,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1023104132] [2020-10-14 22:19:41,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:19:41,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:41,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:41,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:41,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:41,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:41,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 22:19:41,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:19:41,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 871 [2020-10-14 22:19:41,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:41,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:41,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:19:41,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:19:41,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 22:19:41,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:19:42,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:19:42,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:42,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:42,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:42,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:19:42,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:42,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 22:19:42,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:42,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:42,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:42,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:42,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:19:42,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:19:42,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:19:42,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:42,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:42,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:42,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:42,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:19:42,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:19:42,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-14 22:19:42,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:42,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:42,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:42,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:42,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 22:19:42,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:42,351 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 22:19:42,352 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1023104132] [2020-10-14 22:19:42,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:19:42,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:19:42,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138648454] [2020-10-14 22:19:42,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:19:42,356 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:19:42,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:19:42,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:19:42,357 INFO L87 Difference]: Start difference. First operand 689 states and 1155 transitions. Second operand 7 states. [2020-10-14 22:19:49,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:19:49,285 INFO L93 Difference]: Finished difference Result 3428 states and 5855 transitions. [2020-10-14 22:19:49,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:19:49,287 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 92 [2020-10-14 22:19:49,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:19:49,305 INFO L225 Difference]: With dead ends: 3428 [2020-10-14 22:19:49,306 INFO L226 Difference]: Without dead ends: 2745 [2020-10-14 22:19:49,309 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:19:49,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2745 states. [2020-10-14 22:19:49,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2745 to 2741. [2020-10-14 22:19:49,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2741 states. [2020-10-14 22:19:49,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2741 states to 2741 states and 4030 transitions. [2020-10-14 22:19:49,406 INFO L78 Accepts]: Start accepts. Automaton has 2741 states and 4030 transitions. Word has length 92 [2020-10-14 22:19:49,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:19:49,407 INFO L479 AbstractCegarLoop]: Abstraction has 2741 states and 4030 transitions. [2020-10-14 22:19:49,407 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:19:49,407 INFO L276 IsEmpty]: Start isEmpty. Operand 2741 states and 4030 transitions. [2020-10-14 22:19:49,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-10-14 22:19:49,416 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:19:49,417 INFO L422 BasicCegarLoop]: trace histogram [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, 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 22:19:49,417 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 22:19:49,417 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:19:49,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:19:49,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1181060464, now seen corresponding path program 1 times [2020-10-14 22:19:49,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:19:49,419 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [122046744] [2020-10-14 22:19:49,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:19:49,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:49,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:49,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:49,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:49,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:51,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:54,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:54,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-10-14 22:19:54,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:19:54,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4735 [2020-10-14 22:19:54,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:54,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:54,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:19:54,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:19:54,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-14 22:19:54,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:54,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:19:54,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:54,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:54,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:54,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:19:54,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:54,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:19:54,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:54,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:54,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:54,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:54,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:19:54,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:19:54,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:19:54,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:54,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:54,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:54,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:54,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 22:19:54,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:19:54,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-14 22:19:54,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:54,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:54,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:54,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:54,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 22:19:54,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:54,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 22:19:54,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:54,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:54,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:54,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 22:19:54,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:54,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-14 22:19:54,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:54,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:54,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:54,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:19:54,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-14 22:19:54,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:54,722 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 103 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 22:19:54,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [122046744] [2020-10-14 22:19:54,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:19:54,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:19:54,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166286945] [2020-10-14 22:19:54,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:19:54,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:19:54,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:19:54,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:19:54,729 INFO L87 Difference]: Start difference. First operand 2741 states and 4030 transitions. Second operand 7 states. [2020-10-14 22:19:59,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:19:59,442 INFO L93 Difference]: Finished difference Result 6892 states and 10575 transitions. [2020-10-14 22:19:59,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:19:59,445 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 193 [2020-10-14 22:19:59,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:19:59,489 INFO L225 Difference]: With dead ends: 6892 [2020-10-14 22:19:59,490 INFO L226 Difference]: Without dead ends: 4157 [2020-10-14 22:19:59,501 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:19:59,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4157 states. [2020-10-14 22:19:59,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4157 to 3113. [2020-10-14 22:19:59,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3113 states. [2020-10-14 22:19:59,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3113 states to 3113 states and 4577 transitions. [2020-10-14 22:19:59,699 INFO L78 Accepts]: Start accepts. Automaton has 3113 states and 4577 transitions. Word has length 193 [2020-10-14 22:19:59,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:19:59,704 INFO L479 AbstractCegarLoop]: Abstraction has 3113 states and 4577 transitions. [2020-10-14 22:19:59,704 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:19:59,704 INFO L276 IsEmpty]: Start isEmpty. Operand 3113 states and 4577 transitions. [2020-10-14 22:19:59,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-10-14 22:19:59,719 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:19:59,719 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:19:59,720 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 22:19:59,720 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:19:59,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:19:59,720 INFO L82 PathProgramCache]: Analyzing trace with hash 1118489096, now seen corresponding path program 1 times [2020-10-14 22:19:59,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:19:59,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [558793940] [2020-10-14 22:19:59,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:19:59,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:59,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:00,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:00,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:02,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:02,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-10-14 22:20:02,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:20:02,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2353 [2020-10-14 22:20:02,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:02,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:02,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:20:02,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:20:02,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-14 22:20:02,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:02,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:20:02,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:02,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:02,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:02,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:20:02,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:02,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:20:02,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:02,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:02,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:20:02,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:02,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:20:02,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:02,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:20:02,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:02,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:02,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:02,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:20:02,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:02,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-14 22:20:02,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:02,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:02,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:02,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:20:02,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 22:20:02,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:20:02,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-14 22:20:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:02,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:02,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:02,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 22:20:02,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:02,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:20:02,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:02,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:02,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:02,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-14 22:20:02,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:02,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:02,686 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 30 proven. 87 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 22:20:02,687 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [558793940] [2020-10-14 22:20:02,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:20:02,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:20:02,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818815329] [2020-10-14 22:20:02,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:20:02,690 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:20:02,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:20:02,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:20:02,691 INFO L87 Difference]: Start difference. First operand 3113 states and 4577 transitions. Second operand 7 states. [2020-10-14 22:20:06,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:20:06,836 INFO L93 Difference]: Finished difference Result 6936 states and 10166 transitions. [2020-10-14 22:20:06,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:20:06,837 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 229 [2020-10-14 22:20:06,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:20:06,859 INFO L225 Difference]: With dead ends: 6936 [2020-10-14 22:20:06,859 INFO L226 Difference]: Without dead ends: 3829 [2020-10-14 22:20:06,867 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:20:06,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3829 states. [2020-10-14 22:20:06,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3829 to 3811. [2020-10-14 22:20:06,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3811 states. [2020-10-14 22:20:06,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3811 states to 3811 states and 5425 transitions. [2020-10-14 22:20:06,981 INFO L78 Accepts]: Start accepts. Automaton has 3811 states and 5425 transitions. Word has length 229 [2020-10-14 22:20:06,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:20:06,982 INFO L479 AbstractCegarLoop]: Abstraction has 3811 states and 5425 transitions. [2020-10-14 22:20:06,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:20:06,982 INFO L276 IsEmpty]: Start isEmpty. Operand 3811 states and 5425 transitions. [2020-10-14 22:20:06,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2020-10-14 22:20:06,989 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:20:06,989 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-14 22:20:06,990 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 22:20:06,990 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:20:06,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:20:06,990 INFO L82 PathProgramCache]: Analyzing trace with hash -2066278368, now seen corresponding path program 1 times [2020-10-14 22:20:06,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:20:06,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1603365708] [2020-10-14 22:20:06,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:20:07,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:07,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:07,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:07,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:08,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:08,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:11,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:11,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 334 [2020-10-14 22:20:11,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:20:11,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4372 [2020-10-14 22:20:11,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:11,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:11,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:20:11,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:20:11,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 214 [2020-10-14 22:20:11,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:20:11,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:20:11,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:11,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:11,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:11,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:20:11,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:11,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:20:11,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:11,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:11,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:20:11,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:11,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:20:11,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:11,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:20:11,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:11,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:11,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:11,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:11,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 22:20:11,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:20:11,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-14 22:20:11,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:11,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:11,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:20:11,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:11,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 22:20:11,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:11,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 22:20:11,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:11,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:11,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:11,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:20:11,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:11,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-14 22:20:11,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:11,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:11,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:11,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:20:11,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 22:20:11,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:11,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-10-14 22:20:11,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:11,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:11,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:11,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 22:20:11,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:11,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 22:20:11,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:11,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:11,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:11,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-14 22:20:11,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:11,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:12,089 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 134 proven. 91 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2020-10-14 22:20:12,089 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1603365708] [2020-10-14 22:20:12,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:20:12,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:20:12,090 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667695703] [2020-10-14 22:20:12,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:20:12,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:20:12,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:20:12,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:20:12,092 INFO L87 Difference]: Start difference. First operand 3811 states and 5425 transitions. Second operand 7 states. [2020-10-14 22:20:16,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:20:16,703 INFO L93 Difference]: Finished difference Result 11425 states and 16652 transitions. [2020-10-14 22:20:16,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:20:16,704 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 320 [2020-10-14 22:20:16,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:20:16,738 INFO L225 Difference]: With dead ends: 11425 [2020-10-14 22:20:16,739 INFO L226 Difference]: Without dead ends: 7620 [2020-10-14 22:20:16,750 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 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 22:20:16,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7620 states. [2020-10-14 22:20:16,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7620 to 7257. [2020-10-14 22:20:16,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7257 states. [2020-10-14 22:20:16,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7257 states to 7257 states and 9494 transitions. [2020-10-14 22:20:16,946 INFO L78 Accepts]: Start accepts. Automaton has 7257 states and 9494 transitions. Word has length 320 [2020-10-14 22:20:16,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:20:16,946 INFO L479 AbstractCegarLoop]: Abstraction has 7257 states and 9494 transitions. [2020-10-14 22:20:16,947 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:20:16,947 INFO L276 IsEmpty]: Start isEmpty. Operand 7257 states and 9494 transitions. [2020-10-14 22:20:16,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2020-10-14 22:20:16,960 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:20:16,960 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:20:16,960 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 22:20:16,961 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:20:16,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:20:16,961 INFO L82 PathProgramCache]: Analyzing trace with hash 672122480, now seen corresponding path program 1 times [2020-10-14 22:20:16,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:20:16,962 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1961001075] [2020-10-14 22:20:16,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:20:17,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:17,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:17,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:17,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:18,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:19,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:19,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:22,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:22,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 495 [2020-10-14 22:20:22,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 22:20:22,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-14 22:20:22,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:22,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:22,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:20:22,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-14 22:20:22,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-14 22:20:22,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:22,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:20:22,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:22,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:22,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:22,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:20:22,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:22,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:20:22,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:22,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:22,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:22,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:22,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:22,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:22,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:20:22,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:22,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:22,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:22,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 22:20:22,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:22,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 22:20:22,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:22,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:22,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:20:22,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:22,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 22:20:22,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:22,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 22:20:22,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:22,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:22,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:22,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:22,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 22:20:22,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:20:22,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 385 [2020-10-14 22:20:22,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:22,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:22,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:22,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:20:22,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-14 22:20:22,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:22,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-14 22:20:22,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:22,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:23,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:23,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:20:23,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:23,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-14 22:20:23,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:23,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:23,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:23,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:20:23,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 22:20:23,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:23,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2020-10-14 22:20:23,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:23,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:23,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:23,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 22:20:23,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:23,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 22:20:23,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:23,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:23,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:23,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 114 [2020-10-14 22:20:23,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:23,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:23,467 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 354 proven. 227 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2020-10-14 22:20:23,467 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1961001075] [2020-10-14 22:20:23,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:20:23,468 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 22:20:23,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176799050] [2020-10-14 22:20:23,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 22:20:23,469 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:20:23,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 22:20:23,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-14 22:20:23,470 INFO L87 Difference]: Start difference. First operand 7257 states and 9494 transitions. Second operand 9 states. [2020-10-14 22:20:29,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:20:29,983 INFO L93 Difference]: Finished difference Result 17599 states and 23306 transitions. [2020-10-14 22:20:29,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 22:20:29,984 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 479 [2020-10-14 22:20:29,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:20:30,023 INFO L225 Difference]: With dead ends: 17599 [2020-10-14 22:20:30,024 INFO L226 Difference]: Without dead ends: 9268 [2020-10-14 22:20:30,042 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2020-10-14 22:20:30,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9268 states. [2020-10-14 22:20:30,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9268 to 8251. [2020-10-14 22:20:30,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8251 states. [2020-10-14 22:20:30,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8251 states to 8251 states and 9286 transitions. [2020-10-14 22:20:30,239 INFO L78 Accepts]: Start accepts. Automaton has 8251 states and 9286 transitions. Word has length 479 [2020-10-14 22:20:30,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:20:30,239 INFO L479 AbstractCegarLoop]: Abstraction has 8251 states and 9286 transitions. [2020-10-14 22:20:30,240 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 22:20:30,240 INFO L276 IsEmpty]: Start isEmpty. Operand 8251 states and 9286 transitions. [2020-10-14 22:20:30,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 712 [2020-10-14 22:20:30,273 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:20:30,274 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:20:30,274 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 22:20:30,275 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:20:30,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:20:30,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1305062738, now seen corresponding path program 1 times [2020-10-14 22:20:30,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:20:30,276 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [800529645] [2020-10-14 22:20:30,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:20:30,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:30,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:30,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:30,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:30,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:35,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:35,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 727 [2020-10-14 22:20:35,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:20:35,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 22:20:35,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:35,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:35,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:20:35,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:20:35,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-14 22:20:35,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:35,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:20:35,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:35,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:35,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:35,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:20:35,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:35,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 22:20:35,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:35,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:35,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:20:35,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:35,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:20:35,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:35,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:20:35,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:35,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:35,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:35,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:20:35,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:35,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 356 [2020-10-14 22:20:35,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:35,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:35,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:35,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:20:35,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:20:35,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:36,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 22:20:36,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:36,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:36,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:36,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:20:36,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:36,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 22:20:36,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:36,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:36,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:36,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:20:36,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:36,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:36,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2020-10-14 22:20:36,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:36,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:36,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:36,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:20:36,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:36,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 22:20:36,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:36,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:36,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:36,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:20:36,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:36,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:36,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2020-10-14 22:20:36,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:36,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:36,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:36,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:20:36,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:36,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-10-14 22:20:36,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:36,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:36,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:36,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 22:20:36,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:36,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:36,867 INFO L134 CoverageAnalysis]: Checked inductivity of 835 backedges. 60 proven. 425 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2020-10-14 22:20:36,867 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [800529645] [2020-10-14 22:20:36,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:20:36,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:20:36,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391779126] [2020-10-14 22:20:36,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:20:36,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:20:36,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:20:36,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:20:36,870 INFO L87 Difference]: Start difference. First operand 8251 states and 9286 transitions. Second operand 7 states. [2020-10-14 22:20:39,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:20:39,816 INFO L93 Difference]: Finished difference Result 16532 states and 18684 transitions. [2020-10-14 22:20:39,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:20:39,817 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 711 [2020-10-14 22:20:39,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:20:39,844 INFO L225 Difference]: With dead ends: 16532 [2020-10-14 22:20:39,844 INFO L226 Difference]: Without dead ends: 8624 [2020-10-14 22:20:39,864 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:20:39,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8624 states. [2020-10-14 22:20:40,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8624 to 8610. [2020-10-14 22:20:40,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8610 states. [2020-10-14 22:20:40,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8610 states to 8610 states and 9699 transitions. [2020-10-14 22:20:40,018 INFO L78 Accepts]: Start accepts. Automaton has 8610 states and 9699 transitions. Word has length 711 [2020-10-14 22:20:40,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:20:40,019 INFO L479 AbstractCegarLoop]: Abstraction has 8610 states and 9699 transitions. [2020-10-14 22:20:40,019 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:20:40,019 INFO L276 IsEmpty]: Start isEmpty. Operand 8610 states and 9699 transitions. [2020-10-14 22:20:40,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 831 [2020-10-14 22:20:40,054 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:20:40,055 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:20:40,055 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 22:20:40,055 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:20:40,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:20:40,056 INFO L82 PathProgramCache]: Analyzing trace with hash -1296371390, now seen corresponding path program 1 times [2020-10-14 22:20:40,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:20:40,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1507473316] [2020-10-14 22:20:40,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:20:40,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:40,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:40,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:40,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:45,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:45,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 848 [2020-10-14 22:20:45,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:20:45,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-14 22:20:45,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:45,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:45,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:45,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 380 [2020-10-14 22:20:45,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 22:20:45,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:45,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:20:45,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:45,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:45,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:45,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:20:45,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:45,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:20:45,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:45,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:45,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:45,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:45,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:45,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:45,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:20:45,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:45,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:45,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:45,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:20:45,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:45,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:20:45,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:45,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:45,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:45,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:45,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:45,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:45,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:20:45,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:45,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:45,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:45,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:20:45,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:45,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 22:20:45,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:45,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:45,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:20:45,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:45,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 22:20:45,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:45,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2020-10-14 22:20:45,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:45,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:45,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:45,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:20:45,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:45,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 22:20:45,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:45,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:45,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:45,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:20:45,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 22:20:45,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:45,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2020-10-14 22:20:45,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:45,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:45,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:45,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:20:45,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:45,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 22:20:45,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:45,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:45,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:45,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:20:45,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:45,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:45,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-14 22:20:45,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:45,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:45,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:45,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:20:45,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:45,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 22:20:45,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:45,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:45,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:45,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 22:20:45,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:45,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:46,256 INFO L134 CoverageAnalysis]: Checked inductivity of 1333 backedges. 320 proven. 221 refuted. 0 times theorem prover too weak. 792 trivial. 0 not checked. [2020-10-14 22:20:46,256 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1507473316] [2020-10-14 22:20:46,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:20:46,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:20:46,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418216522] [2020-10-14 22:20:46,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:20:46,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:20:46,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:20:46,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:20:46,260 INFO L87 Difference]: Start difference. First operand 8610 states and 9699 transitions. Second operand 7 states. [2020-10-14 22:20:49,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:20:49,399 INFO L93 Difference]: Finished difference Result 19593 states and 22304 transitions. [2020-10-14 22:20:49,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:20:49,401 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 830 [2020-10-14 22:20:49,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:20:49,435 INFO L225 Difference]: With dead ends: 19593 [2020-10-14 22:20:49,435 INFO L226 Difference]: Without dead ends: 11665 [2020-10-14 22:20:49,454 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:20:49,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11665 states. [2020-10-14 22:20:49,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11665 to 11659. [2020-10-14 22:20:49,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11659 states. [2020-10-14 22:20:49,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11659 states to 11659 states and 12918 transitions. [2020-10-14 22:20:49,664 INFO L78 Accepts]: Start accepts. Automaton has 11659 states and 12918 transitions. Word has length 830 [2020-10-14 22:20:49,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:20:49,665 INFO L479 AbstractCegarLoop]: Abstraction has 11659 states and 12918 transitions. [2020-10-14 22:20:49,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:20:49,666 INFO L276 IsEmpty]: Start isEmpty. Operand 11659 states and 12918 transitions. [2020-10-14 22:20:49,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 894 [2020-10-14 22:20:49,694 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:20:49,695 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:20:49,696 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 22:20:49,696 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:20:49,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:20:49,696 INFO L82 PathProgramCache]: Analyzing trace with hash -644900101, now seen corresponding path program 1 times [2020-10-14 22:20:49,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:20:49,697 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [244392682] [2020-10-14 22:20:49,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:20:49,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:49,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:50,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:50,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:54,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:55,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:55,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 911 [2020-10-14 22:20:55,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:20:55,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5245 [2020-10-14 22:20:55,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:55,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:55,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:20:55,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 672 [2020-10-14 22:20:55,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 238 [2020-10-14 22:20:55,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:55,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:20:55,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:55,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:55,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:55,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:20:55,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:55,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:20:55,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:55,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:55,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:55,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:55,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:55,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:55,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:20:55,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:55,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:55,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:55,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:20:55,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:55,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 22:20:55,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:55,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:55,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:55,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:55,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:55,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:55,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:20:55,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:55,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:55,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:55,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:20:55,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:55,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:20:55,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:55,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:55,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:55,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:55,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:55,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:55,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2020-10-14 22:20:55,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:55,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:55,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:55,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:20:55,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:55,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 22:20:55,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:55,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:55,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:55,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:55,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:55,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:55,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 554 [2020-10-14 22:20:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:55,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:55,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:55,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:20:55,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:55,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:20:55,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:55,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:55,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:20:55,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:55,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 22:20:55,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:55,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 664 [2020-10-14 22:20:55,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:55,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:55,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:56,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:56,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:20:56,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:20:56,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 346 [2020-10-14 22:20:56,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:56,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:56,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:20:56,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:56,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 210 [2020-10-14 22:20:56,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:20:56,661 INFO L134 CoverageAnalysis]: Checked inductivity of 1488 backedges. 97 proven. 5 refuted. 0 times theorem prover too weak. 1386 trivial. 0 not checked. [2020-10-14 22:20:56,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [244392682] [2020-10-14 22:20:56,661 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:20:56,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 22:20:56,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167047096] [2020-10-14 22:20:56,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 22:20:56,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:20:56,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 22:20:56,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 22:20:56,664 INFO L87 Difference]: Start difference. First operand 11659 states and 12918 transitions. Second operand 6 states. [2020-10-14 22:20:59,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:20:59,547 INFO L93 Difference]: Finished difference Result 22638 states and 25135 transitions. [2020-10-14 22:20:59,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:20:59,548 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 893 [2020-10-14 22:20:59,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:20:59,578 INFO L225 Difference]: With dead ends: 22638 [2020-10-14 22:20:59,578 INFO L226 Difference]: Without dead ends: 11661 [2020-10-14 22:20:59,599 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:20:59,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11661 states. [2020-10-14 22:20:59,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11661 to 11659. [2020-10-14 22:20:59,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11659 states. [2020-10-14 22:20:59,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11659 states to 11659 states and 12611 transitions. [2020-10-14 22:20:59,776 INFO L78 Accepts]: Start accepts. Automaton has 11659 states and 12611 transitions. Word has length 893 [2020-10-14 22:20:59,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:20:59,777 INFO L479 AbstractCegarLoop]: Abstraction has 11659 states and 12611 transitions. [2020-10-14 22:20:59,777 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 22:20:59,778 INFO L276 IsEmpty]: Start isEmpty. Operand 11659 states and 12611 transitions. [2020-10-14 22:20:59,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 958 [2020-10-14 22:20:59,801 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:20:59,802 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:20:59,802 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:20:59,803 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:20:59,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:20:59,804 INFO L82 PathProgramCache]: Analyzing trace with hash 1293883769, now seen corresponding path program 1 times [2020-10-14 22:20:59,804 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:20:59,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2065647166] [2020-10-14 22:20:59,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:20:59,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:00,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:00,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:00,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:03,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:04,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:04,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:04,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 975 [2020-10-14 22:21:04,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:21:04,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-14 22:21:04,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:04,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:04,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:04,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 560 [2020-10-14 22:21:04,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:21:04,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:05,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:21:05,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:05,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:05,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:05,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:21:05,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:05,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:21:05,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:05,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:05,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:05,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:05,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:05,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:05,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:21:05,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:05,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:05,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:05,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:21:05,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:05,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 22:21:05,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:05,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:05,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:05,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:05,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:05,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:05,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:21:05,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:05,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:05,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:05,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:21:05,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:05,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 22:21:05,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:05,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:05,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:05,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:05,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:05,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:05,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2020-10-14 22:21:05,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:05,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:05,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:05,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:21:05,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:05,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 22:21:05,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:05,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:05,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:21:05,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:05,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 22:21:05,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:05,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 554 [2020-10-14 22:21:05,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:05,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:05,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:05,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:21:05,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:05,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-10-14 22:21:05,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:05,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:05,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:05,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:21:05,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:21:05,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:05,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 827 [2020-10-14 22:21:05,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:05,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:05,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:05,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 22:21:05,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:05,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 22:21:05,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:05,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:05,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:05,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 114 [2020-10-14 22:21:05,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:05,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:06,552 INFO L134 CoverageAnalysis]: Checked inductivity of 1536 backedges. 634 proven. 115 refuted. 0 times theorem prover too weak. 787 trivial. 0 not checked. [2020-10-14 22:21:06,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2065647166] [2020-10-14 22:21:06,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:21:06,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:21:06,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163224299] [2020-10-14 22:21:06,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:21:06,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:21:06,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:21:06,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:21:06,554 INFO L87 Difference]: Start difference. First operand 11659 states and 12611 transitions. Second operand 8 states. [2020-10-14 22:21:10,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:21:10,329 INFO L93 Difference]: Finished difference Result 23327 states and 25260 transitions. [2020-10-14 22:21:10,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:21:10,330 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 957 [2020-10-14 22:21:10,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:21:10,360 INFO L225 Difference]: With dead ends: 23327 [2020-10-14 22:21:10,361 INFO L226 Difference]: Without dead ends: 12350 [2020-10-14 22:21:10,382 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:21:10,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12350 states. [2020-10-14 22:21:10,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12350 to 12342. [2020-10-14 22:21:10,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12342 states. [2020-10-14 22:21:10,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12342 states to 12342 states and 13312 transitions. [2020-10-14 22:21:10,666 INFO L78 Accepts]: Start accepts. Automaton has 12342 states and 13312 transitions. Word has length 957 [2020-10-14 22:21:10,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:21:10,667 INFO L479 AbstractCegarLoop]: Abstraction has 12342 states and 13312 transitions. [2020-10-14 22:21:10,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:21:10,667 INFO L276 IsEmpty]: Start isEmpty. Operand 12342 states and 13312 transitions. [2020-10-14 22:21:10,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 966 [2020-10-14 22:21:10,693 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:21:10,693 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:21:10,694 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 22:21:10,694 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:21:10,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:21:10,695 INFO L82 PathProgramCache]: Analyzing trace with hash 182495574, now seen corresponding path program 1 times [2020-10-14 22:21:10,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:21:10,695 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [61784085] [2020-10-14 22:21:10,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:21:10,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:10,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:10,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:11,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:14,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:14,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:15,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:15,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 985 [2020-10-14 22:21:15,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:21:15,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5083 [2020-10-14 22:21:15,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:15,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:15,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:15,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 672 [2020-10-14 22:21:15,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 22:21:15,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:21:16,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:21:16,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:16,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:16,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:16,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:21:16,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:16,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:21:16,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:16,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:16,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:16,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:16,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:16,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:16,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:21:16,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:16,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:16,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:16,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:21:16,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:16,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 22:21:16,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:16,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:16,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:16,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:16,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:16,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:16,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:21:16,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:16,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:16,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:16,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:21:16,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:16,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 22:21:16,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:16,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:16,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:16,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:16,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:16,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:16,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2020-10-14 22:21:16,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:16,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:16,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:16,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:21:16,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:16,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:21:16,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:16,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:16,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:16,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:16,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:16,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:16,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 554 [2020-10-14 22:21:16,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:16,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:16,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:16,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:21:16,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:16,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 22:21:16,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:16,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:16,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:21:16,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:16,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 22:21:16,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:16,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 664 [2020-10-14 22:21:16,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:16,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:16,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:16,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:21:16,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:16,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-14 22:21:16,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:16,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:16,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:16,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:21:16,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-14 22:21:16,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:16,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 879 [2020-10-14 22:21:16,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:16,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:16,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:16,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:21:16,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:16,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 22:21:16,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:16,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:16,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:16,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 22:21:16,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:16,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:17,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1863 backedges. 741 proven. 71 refuted. 0 times theorem prover too weak. 1051 trivial. 0 not checked. [2020-10-14 22:21:17,198 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [61784085] [2020-10-14 22:21:17,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:21:17,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:21:17,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449449836] [2020-10-14 22:21:17,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:21:17,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:21:17,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:21:17,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:21:17,201 INFO L87 Difference]: Start difference. First operand 12342 states and 13312 transitions. Second operand 7 states. [2020-10-14 22:21:20,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:21:20,713 INFO L93 Difference]: Finished difference Result 28750 states and 31206 transitions. [2020-10-14 22:21:20,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:21:20,714 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 965 [2020-10-14 22:21:20,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:21:20,767 INFO L225 Difference]: With dead ends: 28750 [2020-10-14 22:21:20,767 INFO L226 Difference]: Without dead ends: 17090 [2020-10-14 22:21:20,788 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:21:20,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17090 states. [2020-10-14 22:21:21,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17090 to 16412. [2020-10-14 22:21:21,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16412 states. [2020-10-14 22:21:21,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16412 states to 16412 states and 17635 transitions. [2020-10-14 22:21:21,077 INFO L78 Accepts]: Start accepts. Automaton has 16412 states and 17635 transitions. Word has length 965 [2020-10-14 22:21:21,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:21:21,078 INFO L479 AbstractCegarLoop]: Abstraction has 16412 states and 17635 transitions. [2020-10-14 22:21:21,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:21:21,078 INFO L276 IsEmpty]: Start isEmpty. Operand 16412 states and 17635 transitions. [2020-10-14 22:21:21,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1087 [2020-10-14 22:21:21,115 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:21:21,117 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:21:21,117 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 22:21:21,117 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:21:21,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:21:21,118 INFO L82 PathProgramCache]: Analyzing trace with hash 1433683563, now seen corresponding path program 1 times [2020-10-14 22:21:21,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:21:21,118 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [565904787] [2020-10-14 22:21:21,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:21:21,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:21,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:21,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:23,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:24,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:25,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:26,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:26,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1106 [2020-10-14 22:21:26,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:21:26,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 22:21:26,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:26,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:26,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:26,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 577 [2020-10-14 22:21:26,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:21:26,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:26,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:21:26,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:26,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:26,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:26,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:21:26,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:26,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:21:26,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:26,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:26,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:26,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:26,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:26,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:26,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:21:26,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:26,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:26,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:26,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:21:26,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:26,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 22:21:26,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:26,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:26,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:26,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:26,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:26,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:26,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:21:26,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:26,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:26,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:26,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:21:26,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:26,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 22:21:26,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:26,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:26,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:26,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:26,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:26,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:26,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2020-10-14 22:21:26,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:26,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:26,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:26,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:21:26,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:26,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 22:21:26,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:26,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:26,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:21:26,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:26,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 22:21:26,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:26,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 571 [2020-10-14 22:21:26,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:26,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:27,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:27,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:21:27,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:27,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-10-14 22:21:27,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:27,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:27,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:27,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:21:27,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:21:27,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:27,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 844 [2020-10-14 22:21:27,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:27,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:27,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:27,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 22:21:27,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:27,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 22:21:27,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:27,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:27,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:27,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:21:27,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:27,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:27,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 956 [2020-10-14 22:21:27,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:27,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:27,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:27,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 22:21:27,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:27,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 22:21:27,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:27,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:27,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:27,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 114 [2020-10-14 22:21:27,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:27,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:28,128 INFO L134 CoverageAnalysis]: Checked inductivity of 2130 backedges. 678 proven. 224 refuted. 0 times theorem prover too weak. 1228 trivial. 0 not checked. [2020-10-14 22:21:28,129 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [565904787] [2020-10-14 22:21:28,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:21:28,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:21:28,130 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056439806] [2020-10-14 22:21:28,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:21:28,131 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:21:28,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:21:28,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:21:28,131 INFO L87 Difference]: Start difference. First operand 16412 states and 17635 transitions. Second operand 7 states. [2020-10-14 22:21:31,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:21:31,511 INFO L93 Difference]: Finished difference Result 32158 states and 34598 transitions. [2020-10-14 22:21:31,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:21:31,512 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1086 [2020-10-14 22:21:31,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:21:31,554 INFO L225 Difference]: With dead ends: 32158 [2020-10-14 22:21:31,554 INFO L226 Difference]: Without dead ends: 16428 [2020-10-14 22:21:31,577 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:21:31,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16428 states. [2020-10-14 22:21:31,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16428 to 16083. [2020-10-14 22:21:31,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16083 states. [2020-10-14 22:21:31,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16083 states to 16083 states and 17297 transitions. [2020-10-14 22:21:31,843 INFO L78 Accepts]: Start accepts. Automaton has 16083 states and 17297 transitions. Word has length 1086 [2020-10-14 22:21:31,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:21:31,844 INFO L479 AbstractCegarLoop]: Abstraction has 16083 states and 17297 transitions. [2020-10-14 22:21:31,845 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:21:31,845 INFO L276 IsEmpty]: Start isEmpty. Operand 16083 states and 17297 transitions. [2020-10-14 22:21:31,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1104 [2020-10-14 22:21:31,885 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:21:31,888 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-14 22:21:31,888 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 22:21:31,888 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:21:31,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:21:31,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1794819717, now seen corresponding path program 1 times [2020-10-14 22:21:31,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:21:31,889 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1250623319] [2020-10-14 22:21:31,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:21:32,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:32,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:32,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:32,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:34,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:37,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:37,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1123 [2020-10-14 22:21:37,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:21:37,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5082 [2020-10-14 22:21:37,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:37,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:37,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:37,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 414 [2020-10-14 22:21:37,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 22:21:37,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:37,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:21:37,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:37,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:37,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:37,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:21:37,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:37,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:21:37,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:37,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:37,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:37,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:37,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:37,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:37,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:21:37,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:37,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:37,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:37,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:21:37,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:37,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:21:37,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:37,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:37,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:37,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:37,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:37,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:37,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:21:37,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:37,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:37,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:37,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:21:37,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:37,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 22:21:37,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:37,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:37,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:21:37,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:37,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-14 22:21:37,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:37,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2020-10-14 22:21:37,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:37,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:37,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:37,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 22:21:37,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:37,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-10-14 22:21:37,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:37,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:37,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:37,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:21:37,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 22:21:37,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:37,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 672 [2020-10-14 22:21:37,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:38,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:38,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:38,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-14 22:21:38,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:38,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 22:21:38,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:38,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:38,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:38,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 301 [2020-10-14 22:21:38,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:38,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:38,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:21:38,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:38,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:38,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:38,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 22:21:38,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:38,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:21:38,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:38,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:38,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:38,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:38,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:38,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:38,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 973 [2020-10-14 22:21:38,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:38,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:38,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:38,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 22:21:38,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:38,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 22:21:38,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:38,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:38,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:38,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 114 [2020-10-14 22:21:38,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:38,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:38,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1768 backedges. 492 proven. 374 refuted. 0 times theorem prover too weak. 902 trivial. 0 not checked. [2020-10-14 22:21:38,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1250623319] [2020-10-14 22:21:38,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:21:38,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:21:38,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202399512] [2020-10-14 22:21:38,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:21:38,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:21:38,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:21:38,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:21:38,672 INFO L87 Difference]: Start difference. First operand 16083 states and 17297 transitions. Second operand 7 states. [2020-10-14 22:21:41,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:21:41,864 INFO L93 Difference]: Finished difference Result 35206 states and 38119 transitions. [2020-10-14 22:21:41,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:21:41,865 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1103 [2020-10-14 22:21:41,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:21:41,907 INFO L225 Difference]: With dead ends: 35206 [2020-10-14 22:21:41,908 INFO L226 Difference]: Without dead ends: 19805 [2020-10-14 22:21:41,929 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:21:41,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19805 states. [2020-10-14 22:21:42,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19805 to 19460. [2020-10-14 22:21:42,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19460 states. [2020-10-14 22:21:42,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19460 states to 19460 states and 20840 transitions. [2020-10-14 22:21:42,232 INFO L78 Accepts]: Start accepts. Automaton has 19460 states and 20840 transitions. Word has length 1103 [2020-10-14 22:21:42,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:21:42,233 INFO L479 AbstractCegarLoop]: Abstraction has 19460 states and 20840 transitions. [2020-10-14 22:21:42,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:21:42,233 INFO L276 IsEmpty]: Start isEmpty. Operand 19460 states and 20840 transitions. [2020-10-14 22:21:42,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1522 [2020-10-14 22:21:42,279 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:21:42,280 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 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 22:21:42,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 22:21:42,280 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:21:42,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:21:42,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1556010568, now seen corresponding path program 1 times [2020-10-14 22:21:42,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:21:42,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1254366230] [2020-10-14 22:21:42,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:21:42,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:42,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:42,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:43,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:43,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:47,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:47,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1545 [2020-10-14 22:21:47,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:21:47,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 22:21:47,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:47,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:47,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:21:47,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:21:47,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 504 [2020-10-14 22:21:47,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:47,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:21:47,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:47,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:47,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:47,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:21:47,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:47,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:21:47,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:47,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:47,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:21:47,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:47,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:21:47,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:47,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:21:47,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:47,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:47,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:47,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:47,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:21:47,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:21:47,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-10-14 22:21:47,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:47,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:47,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:21:47,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:47,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 242 [2020-10-14 22:21:47,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:47,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:21:47,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:47,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:48,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:48,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:21:48,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:48,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-14 22:21:48,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:48,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:48,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:48,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:21:48,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:21:48,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:48,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-14 22:21:48,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:48,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:48,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:48,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:21:48,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:48,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 22:21:48,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:48,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:48,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:48,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 22:21:48,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:48,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:48,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2020-10-14 22:21:48,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:48,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:48,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:48,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 22:21:48,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:48,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 22:21:48,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:48,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:48,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:48,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 260 [2020-10-14 22:21:48,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:48,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:48,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 835 [2020-10-14 22:21:48,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:48,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:48,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:48,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:21:48,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:48,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 22:21:48,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:48,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:48,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:48,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:21:48,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:48,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:48,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1108 [2020-10-14 22:21:48,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:48,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:48,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:48,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 22:21:48,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:48,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 22:21:48,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:48,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:48,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:48,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:21:48,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:48,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:48,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1220 [2020-10-14 22:21:48,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:48,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:48,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:48,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:21:48,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:48,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 22:21:48,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:48,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:48,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:48,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 22:21:48,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:48,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:48,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1435 [2020-10-14 22:21:48,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:48,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:48,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:48,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:21:48,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:48,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 22:21:48,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:48,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:48,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:48,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 22:21:48,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:48,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:50,123 INFO L134 CoverageAnalysis]: Checked inductivity of 3956 backedges. 385 proven. 950 refuted. 0 times theorem prover too weak. 2621 trivial. 0 not checked. [2020-10-14 22:21:50,124 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1254366230] [2020-10-14 22:21:50,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:21:50,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:21:50,124 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188264878] [2020-10-14 22:21:50,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:21:50,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:21:50,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:21:50,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:21:50,126 INFO L87 Difference]: Start difference. First operand 19460 states and 20840 transitions. Second operand 7 states. [2020-10-14 22:21:53,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:21:53,467 INFO L93 Difference]: Finished difference Result 38246 states and 40996 transitions. [2020-10-14 22:21:53,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:21:53,468 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1521 [2020-10-14 22:21:53,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:21:53,503 INFO L225 Difference]: With dead ends: 38246 [2020-10-14 22:21:53,503 INFO L226 Difference]: Without dead ends: 19468 [2020-10-14 22:21:53,527 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:21:53,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19468 states. [2020-10-14 22:21:53,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19468 to 19123. [2020-10-14 22:21:53,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19123 states. [2020-10-14 22:21:53,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19123 states to 19123 states and 20482 transitions. [2020-10-14 22:21:53,782 INFO L78 Accepts]: Start accepts. Automaton has 19123 states and 20482 transitions. Word has length 1521 [2020-10-14 22:21:53,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:21:53,783 INFO L479 AbstractCegarLoop]: Abstraction has 19123 states and 20482 transitions. [2020-10-14 22:21:53,783 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:21:53,783 INFO L276 IsEmpty]: Start isEmpty. Operand 19123 states and 20482 transitions. [2020-10-14 22:21:53,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1556 [2020-10-14 22:21:53,817 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:21:53,818 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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] [2020-10-14 22:21:53,818 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 22:21:53,818 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:21:53,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:21:53,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1804973087, now seen corresponding path program 1 times [2020-10-14 22:21:53,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:21:53,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [300552016] [2020-10-14 22:21:53,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:21:53,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:54,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:54,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:54,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:54,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:58,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:58,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1581 [2020-10-14 22:21:58,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:21:58,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 22:21:58,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:58,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:58,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:58,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 615 [2020-10-14 22:21:58,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 22:21:58,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:59,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:21:59,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:59,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:59,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:59,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:21:59,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:59,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:21:59,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:59,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:59,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:59,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:59,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:59,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:59,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:21:59,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:59,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:59,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:59,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:21:59,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:59,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:21:59,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:59,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:59,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:59,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:59,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:59,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:59,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:21:59,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:59,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:59,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:59,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:21:59,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:59,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 22:21:59,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:59,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:59,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:59,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:59,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:59,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:59,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 22:21:59,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:59,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:59,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:59,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:21:59,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:59,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 22:21:59,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:59,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:59,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:59,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:59,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:59,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:59,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 22:21:59,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:59,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:59,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:59,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:21:59,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:59,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 22:21:59,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:59,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:59,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:21:59,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:59,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 22:21:59,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:59,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-14 22:21:59,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:59,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:59,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:59,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 22:21:59,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:59,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-14 22:21:59,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:59,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:59,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:59,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:21:59,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 22:21:59,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:59,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 869 [2020-10-14 22:21:59,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:59,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:59,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:59,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:21:59,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:59,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 22:21:59,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:59,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:59,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:59,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:21:59,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:59,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:59,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1142 [2020-10-14 22:22:00,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:00,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:00,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:00,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 22:22:00,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:00,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:22:00,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:00,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:00,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:00,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:22:00,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:00,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:00,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1254 [2020-10-14 22:22:00,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:00,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:00,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:00,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:22:00,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:00,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 22:22:00,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:00,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:00,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:00,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 22:22:00,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:00,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:00,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1469 [2020-10-14 22:22:00,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:00,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:00,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:00,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:22:00,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:00,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 22:22:00,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:00,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:00,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:00,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 22:22:00,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:00,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:02,068 INFO L134 CoverageAnalysis]: Checked inductivity of 4541 backedges. 801 proven. 651 refuted. 0 times theorem prover too weak. 3089 trivial. 0 not checked. [2020-10-14 22:22:02,069 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [300552016] [2020-10-14 22:22:02,069 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:22:02,069 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:22:02,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881892752] [2020-10-14 22:22:02,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:22:02,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:22:02,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:22:02,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:22:02,071 INFO L87 Difference]: Start difference. First operand 19123 states and 20482 transitions. Second operand 7 states. [2020-10-14 22:22:05,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:22:05,957 INFO L93 Difference]: Finished difference Result 38589 states and 41416 transitions. [2020-10-14 22:22:05,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:22:05,963 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1555 [2020-10-14 22:22:05,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:22:06,003 INFO L225 Difference]: With dead ends: 38589 [2020-10-14 22:22:06,004 INFO L226 Difference]: Without dead ends: 20148 [2020-10-14 22:22:06,027 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:22:06,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20148 states. [2020-10-14 22:22:06,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20148 to 19807. [2020-10-14 22:22:06,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19807 states. [2020-10-14 22:22:06,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19807 states to 19807 states and 21166 transitions. [2020-10-14 22:22:06,297 INFO L78 Accepts]: Start accepts. Automaton has 19807 states and 21166 transitions. Word has length 1555 [2020-10-14 22:22:06,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:22:06,298 INFO L479 AbstractCegarLoop]: Abstraction has 19807 states and 21166 transitions. [2020-10-14 22:22:06,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:22:06,298 INFO L276 IsEmpty]: Start isEmpty. Operand 19807 states and 21166 transitions. [2020-10-14 22:22:06,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1557 [2020-10-14 22:22:06,334 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:22:06,335 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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] [2020-10-14 22:22:06,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 22:22:06,335 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:22:06,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:22:06,336 INFO L82 PathProgramCache]: Analyzing trace with hash -118773644, now seen corresponding path program 1 times [2020-10-14 22:22:06,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:22:06,337 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [998214495] [2020-10-14 22:22:06,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:22:06,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:06,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:06,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:07,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:11,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:11,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1582 [2020-10-14 22:22:11,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:22:11,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5101 [2020-10-14 22:22:11,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:11,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:11,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:22:11,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 880 [2020-10-14 22:22:11,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:22:11,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:11,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:22:11,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:11,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:11,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:11,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:22:11,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:11,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:22:11,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:11,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:11,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:11,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:11,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:11,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:11,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:22:11,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:11,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:12,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:12,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:22:12,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:12,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-10-14 22:22:12,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:12,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:12,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:12,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:12,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:12,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:22:12,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:22:12,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:12,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:12,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:12,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:22:12,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:12,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 22:22:12,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:12,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:12,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:12,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:12,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:12,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:12,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 22:22:12,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:12,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:12,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:12,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:22:12,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:12,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 22:22:12,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:12,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:12,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:12,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:12,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:12,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:12,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 22:22:12,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:12,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:12,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:12,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:22:12,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:12,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 22:22:12,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:12,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:12,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:12,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:12,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:12,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:12,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-14 22:22:12,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:12,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:12,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:12,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 22:22:12,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:12,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-14 22:22:12,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:12,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:12,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:22:12,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:12,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 257 [2020-10-14 22:22:12,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:12,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 870 [2020-10-14 22:22:12,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:12,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:12,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:12,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:22:12,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:12,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-14 22:22:12,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:12,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:12,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:22:12,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:22:12,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:22:12,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:12,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1143 [2020-10-14 22:22:12,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:12,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:12,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:12,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 22:22:12,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:12,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 22:22:12,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:12,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:12,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:12,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:22:12,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:12,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:12,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1255 [2020-10-14 22:22:12,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:12,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:13,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:13,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:22:13,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:13,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 22:22:13,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:13,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:13,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:13,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 22:22:13,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:13,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:13,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1470 [2020-10-14 22:22:13,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:13,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:13,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:13,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:22:13,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:13,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 22:22:13,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:13,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:13,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:13,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 22:22:13,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:13,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:14,103 INFO L134 CoverageAnalysis]: Checked inductivity of 4549 backedges. 1062 proven. 392 refuted. 0 times theorem prover too weak. 3095 trivial. 0 not checked. [2020-10-14 22:22:14,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [998214495] [2020-10-14 22:22:14,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:22:14,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:22:14,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768965488] [2020-10-14 22:22:14,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:22:14,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:22:14,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:22:14,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:22:14,106 INFO L87 Difference]: Start difference. First operand 19807 states and 21166 transitions. Second operand 7 states. [2020-10-14 22:22:18,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:22:18,869 INFO L93 Difference]: Finished difference Result 39610 states and 42332 transitions. [2020-10-14 22:22:18,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:22:18,870 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1556 [2020-10-14 22:22:18,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:22:18,909 INFO L225 Difference]: With dead ends: 39610 [2020-10-14 22:22:18,910 INFO L226 Difference]: Without dead ends: 20146 [2020-10-14 22:22:18,932 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:22:18,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20146 states. [2020-10-14 22:22:19,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20146 to 18794. [2020-10-14 22:22:19,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18794 states. [2020-10-14 22:22:19,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18794 states to 18794 states and 19882 transitions. [2020-10-14 22:22:19,182 INFO L78 Accepts]: Start accepts. Automaton has 18794 states and 19882 transitions. Word has length 1556 [2020-10-14 22:22:19,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:22:19,183 INFO L479 AbstractCegarLoop]: Abstraction has 18794 states and 19882 transitions. [2020-10-14 22:22:19,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:22:19,183 INFO L276 IsEmpty]: Start isEmpty. Operand 18794 states and 19882 transitions. [2020-10-14 22:22:19,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1911 [2020-10-14 22:22:19,228 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:22:19,229 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 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 22:22:19,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 22:22:19,229 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:22:19,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:22:19,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1781492057, now seen corresponding path program 1 times [2020-10-14 22:22:19,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:22:19,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2114775707] [2020-10-14 22:22:19,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:22:19,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:19,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:20,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:20,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:20,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:21,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:24,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:24,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1938 [2020-10-14 22:22:24,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:22:24,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-14 22:22:24,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:24,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:24,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:22:24,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 733 [2020-10-14 22:22:24,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 22:22:24,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:24,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:22:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:24,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:24,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:24,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:22:24,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:24,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:22:24,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:24,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:24,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:24,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:24,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:24,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:24,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:22:24,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:24,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:24,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:24,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:22:24,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:24,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:22:24,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:24,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:24,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:24,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:24,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:24,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:24,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:22:24,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:24,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:24,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:24,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:22:24,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:24,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 22:22:24,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:24,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:24,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:24,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:24,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:24,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:24,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 22:22:24,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:24,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:24,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:24,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:22:24,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:24,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:22:24,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:24,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:24,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:24,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:24,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:24,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:22:24,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 22:22:24,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:24,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:24,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:24,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:22:24,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:24,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:22:24,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:24,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:24,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:24,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:24,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:24,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:24,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-14 22:22:24,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:24,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:24,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:24,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:22:24,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:24,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 22:22:24,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:24,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:24,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:22:24,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:24,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:22:24,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:24,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-10-14 22:22:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:24,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:25,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:25,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 22:22:25,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:25,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-14 22:22:25,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:25,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:25,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:22:25,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:22:25,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 22:22:25,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:25,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 973 [2020-10-14 22:22:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:25,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:25,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:25,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:22:25,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:25,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 22:22:25,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:25,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:25,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:25,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:22:25,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:25,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:25,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1246 [2020-10-14 22:22:25,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:25,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:25,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:25,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-14 22:22:25,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:25,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 22:22:25,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:25,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:25,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:25,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 263 [2020-10-14 22:22:25,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:25,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:25,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1511 [2020-10-14 22:22:25,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:25,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:25,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:25,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:22:25,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:25,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 22:22:25,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:25,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:25,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:25,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 22:22:25,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:25,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:25,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1726 [2020-10-14 22:22:25,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:25,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:25,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:25,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-14 22:22:25,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:25,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 22:22:25,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:25,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:25,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:25,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-14 22:22:25,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:25,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:28,077 INFO L134 CoverageAnalysis]: Checked inductivity of 6767 backedges. 950 proven. 875 refuted. 0 times theorem prover too weak. 4942 trivial. 0 not checked. [2020-10-14 22:22:28,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2114775707] [2020-10-14 22:22:28,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:22:28,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:22:28,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237411833] [2020-10-14 22:22:28,079 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:22:28,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:22:28,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:22:28,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:22:28,080 INFO L87 Difference]: Start difference. First operand 18794 states and 19882 transitions. Second operand 7 states. [2020-10-14 22:22:31,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:22:31,842 INFO L93 Difference]: Finished difference Result 37588 states and 39784 transitions. [2020-10-14 22:22:31,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 22:22:31,843 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1910 [2020-10-14 22:22:31,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:22:31,877 INFO L225 Difference]: With dead ends: 37588 [2020-10-14 22:22:31,878 INFO L226 Difference]: Without dead ends: 19139 [2020-10-14 22:22:31,893 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:22:31,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19139 states. [2020-10-14 22:22:32,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19139 to 19135. [2020-10-14 22:22:32,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19135 states. [2020-10-14 22:22:32,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19135 states to 19135 states and 20244 transitions. [2020-10-14 22:22:32,138 INFO L78 Accepts]: Start accepts. Automaton has 19135 states and 20244 transitions. Word has length 1910 [2020-10-14 22:22:32,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:22:32,139 INFO L479 AbstractCegarLoop]: Abstraction has 19135 states and 20244 transitions. [2020-10-14 22:22:32,139 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:22:32,139 INFO L276 IsEmpty]: Start isEmpty. Operand 19135 states and 20244 transitions. [2020-10-14 22:22:32,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1988 [2020-10-14 22:22:32,189 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:22:32,190 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:22:32,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 22:22:32,191 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:22:32,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:22:32,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1340252744, now seen corresponding path program 1 times [2020-10-14 22:22:32,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:22:32,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [480376797] [2020-10-14 22:22:32,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:22:32,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:32,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:32,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:33,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:37,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:37,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2017 [2020-10-14 22:22:37,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:22:37,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 22:22:37,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:37,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:37,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:22:37,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1061 [2020-10-14 22:22:37,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 279 [2020-10-14 22:22:37,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:37,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:22:37,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:37,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:37,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:37,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:22:37,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:37,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:22:37,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:37,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:37,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:37,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:37,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:37,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:37,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:22:37,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:37,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:37,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:37,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:22:37,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:37,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 22:22:37,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:37,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:37,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:37,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:37,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:37,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:37,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:22:37,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:37,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:37,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:37,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:22:37,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:37,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 22:22:37,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:37,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:37,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:37,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:37,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:37,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:37,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 22:22:37,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:37,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:37,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:37,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:22:37,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:37,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 22:22:37,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:37,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:37,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:37,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:37,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:37,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:37,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 22:22:37,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:37,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:37,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:37,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:22:37,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:37,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 22:22:37,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:37,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:37,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:37,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:37,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:37,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:37,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-14 22:22:37,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:37,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:38,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:38,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:22:38,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:38,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 22:22:38,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:38,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:38,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:38,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:38,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:38,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:38,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-10-14 22:22:38,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:38,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:38,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:38,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 22:22:38,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:38,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-10-14 22:22:38,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:38,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:38,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:22:38,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:38,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 321 [2020-10-14 22:22:38,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:22:38,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:22:38,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:38,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:38,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:38,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 22:22:38,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:38,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 22:22:38,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:38,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:38,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:22:38,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:38,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 22:22:38,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:22:38,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1050 [2020-10-14 22:22:38,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:38,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:38,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:38,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:22:38,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:38,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-14 22:22:38,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:38,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:38,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:22:38,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:22:38,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:22:38,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:39,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1323 [2020-10-14 22:22:39,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:39,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:39,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:39,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-14 22:22:39,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:39,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 22:22:39,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:39,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:39,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:39,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 263 [2020-10-14 22:22:39,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:39,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:39,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1588 [2020-10-14 22:22:39,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:39,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:39,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:39,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:22:39,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:39,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 22:22:39,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:39,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:39,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:39,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 22:22:39,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:39,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:39,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1803 [2020-10-14 22:22:39,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:39,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:39,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:39,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-14 22:22:39,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:39,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 22:22:39,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:39,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:39,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:39,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-14 22:22:39,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:39,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:41,579 INFO L134 CoverageAnalysis]: Checked inductivity of 6805 backedges. 1217 proven. 643 refuted. 0 times theorem prover too weak. 4945 trivial. 0 not checked. [2020-10-14 22:22:41,580 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [480376797] [2020-10-14 22:22:41,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:22:41,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:22:41,581 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217643831] [2020-10-14 22:22:41,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:22:41,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:22:41,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:22:41,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:22:41,583 INFO L87 Difference]: Start difference. First operand 19135 states and 20244 transitions. Second operand 7 states. [2020-10-14 22:22:45,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:22:45,032 INFO L93 Difference]: Finished difference Result 38270 states and 40525 transitions. [2020-10-14 22:22:45,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:22:45,033 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1987 [2020-10-14 22:22:45,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:22:45,063 INFO L225 Difference]: With dead ends: 38270 [2020-10-14 22:22:45,063 INFO L226 Difference]: Without dead ends: 19480 [2020-10-14 22:22:45,082 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:22:45,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19480 states. [2020-10-14 22:22:45,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19480 to 19472. [2020-10-14 22:22:45,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19472 states. [2020-10-14 22:22:45,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19472 states to 19472 states and 20587 transitions. [2020-10-14 22:22:45,291 INFO L78 Accepts]: Start accepts. Automaton has 19472 states and 20587 transitions. Word has length 1987 [2020-10-14 22:22:45,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:22:45,292 INFO L479 AbstractCegarLoop]: Abstraction has 19472 states and 20587 transitions. [2020-10-14 22:22:45,292 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:22:45,292 INFO L276 IsEmpty]: Start isEmpty. Operand 19472 states and 20587 transitions. [2020-10-14 22:22:45,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2004 [2020-10-14 22:22:45,335 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:22:45,336 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 6, 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, 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, 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 22:22:45,336 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 22:22:45,336 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:22:45,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:22:45,337 INFO L82 PathProgramCache]: Analyzing trace with hash 1550254824, now seen corresponding path program 1 times [2020-10-14 22:22:45,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:22:45,337 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [411655433] [2020-10-14 22:22:45,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:22:45,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:45,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:46,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:46,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:46,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:50,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:50,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2031 [2020-10-14 22:22:50,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:22:50,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 22:22:50,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:50,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:50,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:22:50,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1078 [2020-10-14 22:22:50,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:22:50,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:22:50,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:22:50,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:50,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:50,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:50,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:22:50,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:50,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:22:50,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:50,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:50,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:50,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:50,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:50,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:50,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:22:50,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:50,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:50,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:50,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:22:50,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:50,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 22:22:50,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:50,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:50,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:50,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:50,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:50,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:51,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:22:51,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:51,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:51,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:51,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:22:51,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:51,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:22:51,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:51,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:51,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:51,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:51,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:51,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:51,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 22:22:51,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:51,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:51,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:51,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:22:51,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:51,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 22:22:51,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:51,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:51,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:51,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:51,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:51,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:51,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 22:22:51,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:51,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:51,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:51,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:22:51,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:51,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-14 22:22:51,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:51,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:51,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:51,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:51,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:51,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:22:51,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2020-10-14 22:22:51,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:51,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:51,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:51,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 22:22:51,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:51,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:22:51,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:51,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:51,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:51,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:51,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:51,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:22:51,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 816 [2020-10-14 22:22:51,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:51,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:51,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:51,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 22:22:51,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:51,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-10-14 22:22:51,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:51,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:51,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:22:51,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:51,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 245 [2020-10-14 22:22:51,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:22:51,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1066 [2020-10-14 22:22:51,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:51,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:52,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:52,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:22:52,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:52,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 491 [2020-10-14 22:22:52,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:52,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:52,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:22:52,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:22:52,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:22:52,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:52,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1339 [2020-10-14 22:22:52,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:52,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:52,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:52,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-14 22:22:52,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:52,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-14 22:22:52,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:52,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:52,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:52,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 263 [2020-10-14 22:22:52,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:52,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:22:52,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1604 [2020-10-14 22:22:53,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:53,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:53,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:53,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 22:22:53,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:53,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 22:22:53,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:53,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:53,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:53,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 22:22:53,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:53,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:53,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1819 [2020-10-14 22:22:53,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:53,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:53,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:53,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-14 22:22:53,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:53,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-14 22:22:53,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:53,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:53,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:53,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-14 22:22:53,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:53,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:22:55,732 INFO L134 CoverageAnalysis]: Checked inductivity of 7400 backedges. 1287 proven. 643 refuted. 0 times theorem prover too weak. 5470 trivial. 0 not checked. [2020-10-14 22:22:55,732 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [411655433] [2020-10-14 22:22:55,732 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:22:55,733 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:22:55,733 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582150840] [2020-10-14 22:22:55,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:22:55,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:22:55,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:22:55,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:22:55,735 INFO L87 Difference]: Start difference. First operand 19472 states and 20587 transitions. Second operand 7 states. [2020-10-14 22:22:59,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:22:59,946 INFO L93 Difference]: Finished difference Result 40629 states and 43119 transitions. [2020-10-14 22:22:59,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:22:59,947 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 2003 [2020-10-14 22:22:59,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:22:59,982 INFO L225 Difference]: With dead ends: 40629 [2020-10-14 22:22:59,982 INFO L226 Difference]: Without dead ends: 21502 [2020-10-14 22:23:00,003 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:23:00,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21502 states. [2020-10-14 22:23:00,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21502 to 20818. [2020-10-14 22:23:00,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20818 states. [2020-10-14 22:23:01,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20818 states to 20818 states and 21853 transitions. [2020-10-14 22:23:01,002 INFO L78 Accepts]: Start accepts. Automaton has 20818 states and 21853 transitions. Word has length 2003 [2020-10-14 22:23:01,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:23:01,004 INFO L479 AbstractCegarLoop]: Abstraction has 20818 states and 21853 transitions. [2020-10-14 22:23:01,004 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:23:01,004 INFO L276 IsEmpty]: Start isEmpty. Operand 20818 states and 21853 transitions. [2020-10-14 22:23:01,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2032 [2020-10-14 22:23:01,074 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:23:01,076 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 6, 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, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:23:01,076 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 22:23:01,077 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:23:01,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:23:01,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1614568472, now seen corresponding path program 1 times [2020-10-14 22:23:01,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:23:01,078 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [171357911] [2020-10-14 22:23:01,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:23:01,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:01,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking...