/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label10.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 04:12:57,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 04:12:57,790 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 04:12:57,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 04:12:57,814 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 04:12:57,816 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 04:12:57,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 04:12:57,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 04:12:57,820 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 04:12:57,821 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 04:12:57,822 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 04:12:57,823 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 04:12:57,823 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 04:12:57,824 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 04:12:57,825 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 04:12:57,826 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 04:12:57,827 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 04:12:57,828 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 04:12:57,830 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 04:12:57,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 04:12:57,833 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 04:12:57,834 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 04:12:57,835 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 04:12:57,836 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 04:12:57,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 04:12:57,838 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 04:12:57,839 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 04:12:57,839 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 04:12:57,840 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 04:12:57,841 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 04:12:57,841 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 04:12:57,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 04:12:57,842 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 04:12:57,843 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 04:12:57,844 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 04:12:57,844 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 04:12:57,845 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 04:12:57,845 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 04:12:57,845 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 04:12:57,846 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 04:12:57,847 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 04:12:57,847 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 04:12:57,870 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 04:12:57,871 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 04:12:57,872 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 04:12:57,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 04:12:57,872 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 04:12:57,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 04:12:57,873 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 04:12:57,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 04:12:57,873 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 04:12:57,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 04:12:57,873 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 04:12:57,874 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 04:12:57,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 04:12:57,874 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 04:12:57,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 04:12:57,874 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 04:12:57,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 04:12:57,875 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 04:12:57,875 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 04:12:57,875 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 04:12:57,875 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 04:12:57,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 04:12:57,876 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 04:12:57,876 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 04:12:57,876 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 04:12:57,876 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 04:12:57,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 04:12:57,877 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 04:12:57,877 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 04:12:57,877 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 04:12:58,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 04:12:58,197 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 04:12:58,200 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 04:12:58,201 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 04:12:58,202 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 04:12:58,203 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label10.c [2020-10-14 04:12:58,261 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ae0c6dd2/4f3986fd5aa2465382dea6ad15dd1eb3/FLAGc54009785 [2020-10-14 04:12:58,984 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 04:12:58,985 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label10.c [2020-10-14 04:12:59,011 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ae0c6dd2/4f3986fd5aa2465382dea6ad15dd1eb3/FLAGc54009785 [2020-10-14 04:12:59,043 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ae0c6dd2/4f3986fd5aa2465382dea6ad15dd1eb3 [2020-10-14 04:12:59,054 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 04:12:59,056 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 04:12:59,061 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 04:12:59,061 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 04:12:59,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 04:12:59,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:12:59" (1/1) ... [2020-10-14 04:12:59,069 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@200f4d05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:12:59, skipping insertion in model container [2020-10-14 04:12:59,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:12:59" (1/1) ... [2020-10-14 04:12:59,078 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 04:12:59,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 04:13:00,399 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:13:00,407 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 04:13:01,073 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:13:01,099 INFO L208 MainTranslator]: Completed translation [2020-10-14 04:13:01,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:13:01 WrapperNode [2020-10-14 04:13:01,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 04:13:01,101 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 04:13:01,101 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 04:13:01,102 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 04:13:01,114 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:13:01" (1/1) ... [2020-10-14 04:13:01,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:13:01" (1/1) ... [2020-10-14 04:13:01,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:13:01" (1/1) ... [2020-10-14 04:13:01,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:13:01" (1/1) ... [2020-10-14 04:13:01,253 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:13:01" (1/1) ... [2020-10-14 04:13:01,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:13:01" (1/1) ... [2020-10-14 04:13:01,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:13:01" (1/1) ... [2020-10-14 04:13:01,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 04:13:01,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 04:13:01,350 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 04:13:01,350 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 04:13:01,351 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:13:01" (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 04:13:01,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 04:13:01,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 04:13:01,418 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 04:13:01,418 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 04:13:01,418 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 04:13:01,418 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 04:13:01,419 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 04:13:01,419 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 04:13:01,419 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 04:13:01,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 04:13:01,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 04:13:01,420 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 04:13:01,420 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 04:13:01,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 04:13:01,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 04:13:07,081 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 04:13:07,084 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 04:13:07,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:13:07 BoogieIcfgContainer [2020-10-14 04:13:07,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 04:13:07,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 04:13:07,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 04:13:07,106 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 04:13:07,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:12:59" (1/3) ... [2020-10-14 04:13:07,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@424c784a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:13:07, skipping insertion in model container [2020-10-14 04:13:07,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:13:01" (2/3) ... [2020-10-14 04:13:07,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@424c784a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:13:07, skipping insertion in model container [2020-10-14 04:13:07,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:13:07" (3/3) ... [2020-10-14 04:13:07,109 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label10.c [2020-10-14 04:13:07,119 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 04:13:07,127 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 04:13:07,141 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 04:13:07,167 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 04:13:07,167 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 04:13:07,168 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 04:13:07,168 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 04:13:07,168 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 04:13:07,168 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 04:13:07,168 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 04:13:07,168 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 04:13:07,204 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2020-10-14 04:13:07,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-14 04:13:07,212 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:13:07,213 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:13:07,214 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:13:07,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:13:07,220 INFO L82 PathProgramCache]: Analyzing trace with hash 717263041, now seen corresponding path program 1 times [2020-10-14 04:13:07,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:13:07,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [480350231] [2020-10-14 04:13:07,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:13:07,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:13:07,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:07,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:13:07,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 04:13:07,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:13:07,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 349 [2020-10-14 04:13:07,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:13:07,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:13:07,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:13:07,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:13:07,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 04:13:07,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 04:13:07,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:13:07,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:13:07,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:07,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:13:07,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:13:07,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:13:07,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 04:13:07,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:13:07,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:13:07,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:13:07,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:13:07,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:13:07,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:13:07,816 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 04:13:07,817 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [480350231] [2020-10-14 04:13:07,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:13:07,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 04:13:07,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897910685] [2020-10-14 04:13:07,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:13:07,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:13:07,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:13:07,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:13:07,842 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 4 states. [2020-10-14 04:13:14,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:13:14,878 INFO L93 Difference]: Finished difference Result 2270 states and 4349 transitions. [2020-10-14 04:13:14,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:13:14,880 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-10-14 04:13:14,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:13:14,914 INFO L225 Difference]: With dead ends: 2270 [2020-10-14 04:13:14,915 INFO L226 Difference]: Without dead ends: 1432 [2020-10-14 04:13:14,926 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 04:13:14,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2020-10-14 04:13:15,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1425. [2020-10-14 04:13:15,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2020-10-14 04:13:15,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 2229 transitions. [2020-10-14 04:13:15,112 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 2229 transitions. Word has length 24 [2020-10-14 04:13:15,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:13:15,113 INFO L479 AbstractCegarLoop]: Abstraction has 1425 states and 2229 transitions. [2020-10-14 04:13:15,113 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:13:15,113 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 2229 transitions. [2020-10-14 04:13:15,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-14 04:13:15,121 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:13:15,121 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:13:15,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 04:13:15,122 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:13:15,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:13:15,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1407334756, now seen corresponding path program 1 times [2020-10-14 04:13:15,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:13:15,124 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [432103261] [2020-10-14 04:13:15,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:13:15,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:13:15,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:15,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:15,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:13:15,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-14 04:13:15,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:13:15,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 567 [2020-10-14 04:13:15,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:13:15,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:13:15,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:13:15,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-14 04:13:15,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 04:13:15,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:13:15,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:13:15,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:13:15,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:15,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:13:15,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:13:15,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:13:15,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:13:15,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:13:15,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:13:15,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:13:15,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:13:15,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:13:15,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:13:15,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:13:15,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:13:15,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:15,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:13:15,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 04:13:15,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:13:15,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-14 04:13:15,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:13:15,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:13:15,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:13:15,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:13:15,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 04:13:15,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 04:13:15,995 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:13:15,996 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [432103261] [2020-10-14 04:13:15,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:13:15,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:13:15,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142400012] [2020-10-14 04:13:15,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:13:16,000 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:13:16,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:13:16,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:13:16,001 INFO L87 Difference]: Start difference. First operand 1425 states and 2229 transitions. Second operand 5 states. [2020-10-14 04:13:23,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:13:23,972 INFO L93 Difference]: Finished difference Result 4276 states and 6734 transitions. [2020-10-14 04:13:23,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:13:23,975 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 94 [2020-10-14 04:13:23,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:13:23,994 INFO L225 Difference]: With dead ends: 4276 [2020-10-14 04:13:23,994 INFO L226 Difference]: Without dead ends: 2857 [2020-10-14 04:13:23,998 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:13:24,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2857 states. [2020-10-14 04:13:24,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2857 to 2853. [2020-10-14 04:13:24,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2853 states. [2020-10-14 04:13:24,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2853 states to 2853 states and 4026 transitions. [2020-10-14 04:13:24,126 INFO L78 Accepts]: Start accepts. Automaton has 2853 states and 4026 transitions. Word has length 94 [2020-10-14 04:13:24,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:13:24,127 INFO L479 AbstractCegarLoop]: Abstraction has 2853 states and 4026 transitions. [2020-10-14 04:13:24,127 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:13:24,127 INFO L276 IsEmpty]: Start isEmpty. Operand 2853 states and 4026 transitions. [2020-10-14 04:13:24,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-14 04:13:24,137 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:13:24,137 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:13:24,138 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 04:13:24,138 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:13:24,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:13:24,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1302475476, now seen corresponding path program 1 times [2020-10-14 04:13:24,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:13:24,139 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [621318741] [2020-10-14 04:13:24,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:13:24,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:13:24,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:24,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:24,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:13:24,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 04:13:24,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:13:24,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 702 [2020-10-14 04:13:24,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:13:24,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:13:24,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:13:24,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-14 04:13:24,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 04:13:24,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:13:24,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:13:24,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:13:24,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:24,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:13:24,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:13:24,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:13:24,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:13:24,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:13:24,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:13:24,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:13:24,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:13:24,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:13:24,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:13:24,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:13:24,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:13:24,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:25,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:13:25,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 04:13:25,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:13:25,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-14 04:13:25,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:13:25,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:13:25,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:13:25,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:13:25,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 04:13:25,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:13:25,197 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:13:25,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [621318741] [2020-10-14 04:13:25,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:13:25,198 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:13:25,198 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605562343] [2020-10-14 04:13:25,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:13:25,199 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:13:25,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:13:25,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:13:25,199 INFO L87 Difference]: Start difference. First operand 2853 states and 4026 transitions. Second operand 5 states. [2020-10-14 04:13:35,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:13:35,486 INFO L93 Difference]: Finished difference Result 8547 states and 12183 transitions. [2020-10-14 04:13:35,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:13:35,492 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 98 [2020-10-14 04:13:35,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:13:35,520 INFO L225 Difference]: With dead ends: 8547 [2020-10-14 04:13:35,521 INFO L226 Difference]: Without dead ends: 5700 [2020-10-14 04:13:35,527 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:13:35,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2020-10-14 04:13:35,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5696. [2020-10-14 04:13:35,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5696 states. [2020-10-14 04:13:35,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5696 states to 5696 states and 7348 transitions. [2020-10-14 04:13:35,667 INFO L78 Accepts]: Start accepts. Automaton has 5696 states and 7348 transitions. Word has length 98 [2020-10-14 04:13:35,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:13:35,667 INFO L479 AbstractCegarLoop]: Abstraction has 5696 states and 7348 transitions. [2020-10-14 04:13:35,668 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:13:35,668 INFO L276 IsEmpty]: Start isEmpty. Operand 5696 states and 7348 transitions. [2020-10-14 04:13:35,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-14 04:13:35,670 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:13:35,670 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:13:35,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 04:13:35,670 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:13:35,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:13:35,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1329031576, now seen corresponding path program 1 times [2020-10-14 04:13:35,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:13:35,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [569394251] [2020-10-14 04:13:35,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:13:35,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:13:35,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:35,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:36,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:36,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:13:36,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-14 04:13:36,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:13:36,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 752 [2020-10-14 04:13:36,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:13:36,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:13:36,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:13:36,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-14 04:13:36,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 04:13:36,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:13:36,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:13:36,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:13:36,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:36,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:13:36,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:13:36,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:13:36,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:13:36,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:13:36,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:13:36,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:13:36,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:13:36,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:13:36,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:13:36,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:13:36,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:13:36,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:36,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:13:36,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 04:13:36,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:13:36,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 04:13:36,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:13:36,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:13:36,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:13:36,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:13:36,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 04:13:36,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:13:36,772 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:13:36,772 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [569394251] [2020-10-14 04:13:36,772 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:13:36,773 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 04:13:36,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557377907] [2020-10-14 04:13:36,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 04:13:36,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:13:36,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 04:13:36,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:13:36,776 INFO L87 Difference]: Start difference. First operand 5696 states and 7348 transitions. Second operand 6 states. [2020-10-14 04:13:53,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:13:53,984 INFO L93 Difference]: Finished difference Result 17081 states and 23020 transitions. [2020-10-14 04:13:53,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 04:13:53,985 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 112 [2020-10-14 04:13:53,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:13:54,048 INFO L225 Difference]: With dead ends: 17081 [2020-10-14 04:13:54,049 INFO L226 Difference]: Without dead ends: 11391 [2020-10-14 04:13:54,065 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 04:13:54,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11391 states. [2020-10-14 04:13:54,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11391 to 10673. [2020-10-14 04:13:54,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10673 states. [2020-10-14 04:13:54,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10673 states to 10673 states and 14310 transitions. [2020-10-14 04:13:54,356 INFO L78 Accepts]: Start accepts. Automaton has 10673 states and 14310 transitions. Word has length 112 [2020-10-14 04:13:54,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:13:54,357 INFO L479 AbstractCegarLoop]: Abstraction has 10673 states and 14310 transitions. [2020-10-14 04:13:54,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 04:13:54,358 INFO L276 IsEmpty]: Start isEmpty. Operand 10673 states and 14310 transitions. [2020-10-14 04:13:54,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-14 04:13:54,364 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:13:54,365 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:13:54,365 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 04:13:54,365 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:13:54,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:13:54,366 INFO L82 PathProgramCache]: Analyzing trace with hash 835720738, now seen corresponding path program 1 times [2020-10-14 04:13:54,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:13:54,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [792112382] [2020-10-14 04:13:54,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:13:54,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:13:54,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:54,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:54,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:55,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:57,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:13:57,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-10-14 04:13:57,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:13:57,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2719 [2020-10-14 04:13:57,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:13:57,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:13:57,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:13:57,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-14 04:13:57,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 04:13:57,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:13:57,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:13:57,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:13:57,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:57,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:13:57,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:13:57,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:13:57,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:13:57,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:13:57,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:13:57,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:13:57,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:13:57,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:13:57,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 04:13:57,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:13:57,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:13:57,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:57,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:13:57,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 04:13:57,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:13:57,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 04:13:57,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:13:57,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:13:57,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:13:57,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:13:57,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 04:13:57,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:13:57,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 04:13:57,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:13:57,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:57,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:13:57,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 04:13:57,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:13:57,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 04:13:57,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:13:57,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:13:57,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:13:57,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:13:57,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-14 04:13:57,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:13:57,648 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 102 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:13:57,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [792112382] [2020-10-14 04:13:57,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:13:57,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:13:57,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901084087] [2020-10-14 04:13:57,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:13:57,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:13:57,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:13:57,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:13:57,652 INFO L87 Difference]: Start difference. First operand 10673 states and 14310 transitions. Second operand 7 states. [2020-10-14 04:14:13,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:14:13,111 INFO L93 Difference]: Finished difference Result 28048 states and 40014 transitions. [2020-10-14 04:14:13,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 04:14:13,112 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 183 [2020-10-14 04:14:13,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:14:13,187 INFO L225 Difference]: With dead ends: 28048 [2020-10-14 04:14:13,187 INFO L226 Difference]: Without dead ends: 17381 [2020-10-14 04:14:13,212 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 04:14:13,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17381 states. [2020-10-14 04:14:13,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17381 to 17262. [2020-10-14 04:14:13,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17262 states. [2020-10-14 04:14:13,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17262 states to 17262 states and 22445 transitions. [2020-10-14 04:14:13,621 INFO L78 Accepts]: Start accepts. Automaton has 17262 states and 22445 transitions. Word has length 183 [2020-10-14 04:14:13,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:14:13,622 INFO L479 AbstractCegarLoop]: Abstraction has 17262 states and 22445 transitions. [2020-10-14 04:14:13,622 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:14:13,622 INFO L276 IsEmpty]: Start isEmpty. Operand 17262 states and 22445 transitions. [2020-10-14 04:14:13,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-10-14 04:14:13,627 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:14:13,627 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:14:13,627 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 04:14:13,627 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:14:13,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:14:13,628 INFO L82 PathProgramCache]: Analyzing trace with hash 750052486, now seen corresponding path program 1 times [2020-10-14 04:14:13,628 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:14:13,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2141932977] [2020-10-14 04:14:13,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:14:13,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:13,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:13,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:14,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:14,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-10-14 04:14:14,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:14:14,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 870 [2020-10-14 04:14:14,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:14,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:14,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:14:14,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 04:14:14,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 04:14:14,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:14:14,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:14:14,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:14,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:14,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:14,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:14:14,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:14,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:14:14,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:14,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:14,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:14:14,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:14,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:14:14,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:14:14,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:14:14,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:14,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:14,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:14,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 04:14:14,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:14,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 04:14:14,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:14,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:14,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:14:14,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:14,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:14:14,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:14:14,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 04:14:14,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:14,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:14,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:14,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 04:14:14,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:14,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 04:14:14,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:14,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:14,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:14:14,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:14,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 04:14:14,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:14:14,767 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 35 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-10-14 04:14:14,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2141932977] [2020-10-14 04:14:14,769 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:14:14,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:14:14,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444416108] [2020-10-14 04:14:14,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:14:14,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:14:14,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:14:14,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:14:14,772 INFO L87 Difference]: Start difference. First operand 17262 states and 22445 transitions. Second operand 5 states. [2020-10-14 04:14:27,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:14:27,920 INFO L93 Difference]: Finished difference Result 39516 states and 53555 transitions. [2020-10-14 04:14:27,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:14:27,921 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 185 [2020-10-14 04:14:27,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:14:27,997 INFO L225 Difference]: With dead ends: 39516 [2020-10-14 04:14:27,998 INFO L226 Difference]: Without dead ends: 22964 [2020-10-14 04:14:28,040 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:14:28,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22964 states. [2020-10-14 04:14:28,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22964 to 21558. [2020-10-14 04:14:28,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21558 states. [2020-10-14 04:14:28,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21558 states to 21558 states and 27610 transitions. [2020-10-14 04:14:28,584 INFO L78 Accepts]: Start accepts. Automaton has 21558 states and 27610 transitions. Word has length 185 [2020-10-14 04:14:28,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:14:28,585 INFO L479 AbstractCegarLoop]: Abstraction has 21558 states and 27610 transitions. [2020-10-14 04:14:28,585 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:14:28,588 INFO L276 IsEmpty]: Start isEmpty. Operand 21558 states and 27610 transitions. [2020-10-14 04:14:28,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-10-14 04:14:28,596 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:14:28,597 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:14:28,597 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 04:14:28,597 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:14:28,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:14:28,597 INFO L82 PathProgramCache]: Analyzing trace with hash -542549358, now seen corresponding path program 1 times [2020-10-14 04:14:28,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:14:28,599 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1106909106] [2020-10-14 04:14:28,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:14:28,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:28,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:28,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:28,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:30,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:33,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:33,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 231 [2020-10-14 04:14:33,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:14:33,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-14 04:14:33,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:33,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:33,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:14:33,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-14 04:14:33,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 04:14:33,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:14:33,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:14:33,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:33,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:33,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:33,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:14:33,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:33,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:14:33,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:33,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:33,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:14:33,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:33,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:14:33,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:14:33,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:14:33,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:33,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:33,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:33,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 04:14:33,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:33,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 04:14:33,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:33,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:33,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:14:33,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:33,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 04:14:33,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:14:33,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 04:14:33,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:33,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:34,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:34,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 04:14:34,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:34,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-14 04:14:34,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:34,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:34,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:14:34,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:14:34,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-14 04:14:34,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:14:34,238 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 101 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:14:34,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1106909106] [2020-10-14 04:14:34,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:14:34,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 04:14:34,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250144566] [2020-10-14 04:14:34,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 04:14:34,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:14:34,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 04:14:34,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 04:14:34,241 INFO L87 Difference]: Start difference. First operand 21558 states and 27610 transitions. Second operand 8 states. [2020-10-14 04:14:47,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:14:47,821 INFO L93 Difference]: Finished difference Result 49743 states and 67937 transitions. [2020-10-14 04:14:47,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 04:14:47,828 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 219 [2020-10-14 04:14:47,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:14:47,928 INFO L225 Difference]: With dead ends: 49743 [2020-10-14 04:14:47,928 INFO L226 Difference]: Without dead ends: 28895 [2020-10-14 04:14:47,967 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-14 04:14:47,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28895 states. [2020-10-14 04:14:48,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28895 to 28795. [2020-10-14 04:14:48,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28795 states. [2020-10-14 04:14:48,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28795 states to 28795 states and 38602 transitions. [2020-10-14 04:14:48,503 INFO L78 Accepts]: Start accepts. Automaton has 28795 states and 38602 transitions. Word has length 219 [2020-10-14 04:14:48,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:14:48,503 INFO L479 AbstractCegarLoop]: Abstraction has 28795 states and 38602 transitions. [2020-10-14 04:14:48,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 04:14:48,504 INFO L276 IsEmpty]: Start isEmpty. Operand 28795 states and 38602 transitions. [2020-10-14 04:14:48,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-10-14 04:14:48,515 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:14:48,515 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:14:48,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 04:14:48,515 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:14:48,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:14:48,516 INFO L82 PathProgramCache]: Analyzing trace with hash -2033469716, now seen corresponding path program 1 times [2020-10-14 04:14:48,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:14:48,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1357598810] [2020-10-14 04:14:48,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:14:48,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:48,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:48,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:49,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:49,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 256 [2020-10-14 04:14:49,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:14:49,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1219 [2020-10-14 04:14:49,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:49,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:49,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:14:49,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 232 [2020-10-14 04:14:49,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 04:14:49,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:14:49,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:14:49,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:49,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:49,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:49,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:14:49,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:49,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:14:49,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:49,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:49,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:14:49,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:49,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:14:49,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:14:49,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:14:49,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:49,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:50,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:50,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 223 [2020-10-14 04:14:50,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:50,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-14 04:14:50,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:50,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:50,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:14:50,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:50,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 217 [2020-10-14 04:14:50,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:14:50,192 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:14:50,193 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1357598810] [2020-10-14 04:14:50,193 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:14:50,193 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:14:50,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187710294] [2020-10-14 04:14:50,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:14:50,195 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:14:50,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:14:50,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:14:50,196 INFO L87 Difference]: Start difference. First operand 28795 states and 38602 transitions. Second operand 5 states. [2020-10-14 04:15:00,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:15:00,286 INFO L93 Difference]: Finished difference Result 63234 states and 85402 transitions. [2020-10-14 04:15:00,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:15:00,287 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 246 [2020-10-14 04:15:00,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:15:00,376 INFO L225 Difference]: With dead ends: 63234 [2020-10-14 04:15:00,376 INFO L226 Difference]: Without dead ends: 35149 [2020-10-14 04:15:00,420 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:15:00,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35149 states. [2020-10-14 04:15:00,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35149 to 35147. [2020-10-14 04:15:00,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35147 states. [2020-10-14 04:15:00,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35147 states to 35147 states and 44993 transitions. [2020-10-14 04:15:00,933 INFO L78 Accepts]: Start accepts. Automaton has 35147 states and 44993 transitions. Word has length 246 [2020-10-14 04:15:00,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:15:00,933 INFO L479 AbstractCegarLoop]: Abstraction has 35147 states and 44993 transitions. [2020-10-14 04:15:00,933 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:15:00,933 INFO L276 IsEmpty]: Start isEmpty. Operand 35147 states and 44993 transitions. [2020-10-14 04:15:00,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2020-10-14 04:15:00,960 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:15:00,961 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:15:00,961 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 04:15:00,961 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:15:00,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:15:00,962 INFO L82 PathProgramCache]: Analyzing trace with hash -165210111, now seen corresponding path program 1 times [2020-10-14 04:15:00,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:15:00,962 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2079013945] [2020-10-14 04:15:00,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:15:01,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:01,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:01,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:04,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:04,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 396 [2020-10-14 04:15:04,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:15:04,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3259 [2020-10-14 04:15:04,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:04,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:04,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:15:04,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 369 [2020-10-14 04:15:04,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 04:15:04,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:15:04,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:15:04,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:04,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:04,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:04,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:15:04,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:04,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:15:04,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:04,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:04,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:15:04,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:04,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:15:04,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:15:04,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:15:04,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:04,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:04,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:04,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 363 [2020-10-14 04:15:04,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:04,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-10-14 04:15:04,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:04,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:04,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:15:04,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:04,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 354 [2020-10-14 04:15:04,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:15:05,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:15:05,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:05,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:05,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:05,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 04:15:05,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:05,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 04:15:05,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:05,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:05,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:15:05,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:05,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 04:15:05,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:15:05,240 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:15:05,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2079013945] [2020-10-14 04:15:05,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:15:05,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:15:05,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937727904] [2020-10-14 04:15:05,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:15:05,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:15:05,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:15:05,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:15:05,242 INFO L87 Difference]: Start difference. First operand 35147 states and 44993 transitions. Second operand 5 states. [2020-10-14 04:15:14,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:15:14,853 INFO L93 Difference]: Finished difference Result 70288 states and 90229 transitions. [2020-10-14 04:15:14,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:15:14,854 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 384 [2020-10-14 04:15:14,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:15:14,944 INFO L225 Difference]: With dead ends: 70288 [2020-10-14 04:15:14,944 INFO L226 Difference]: Without dead ends: 35851 [2020-10-14 04:15:14,992 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:15:15,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35851 states. [2020-10-14 04:15:15,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35851 to 35139. [2020-10-14 04:15:15,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35139 states. [2020-10-14 04:15:15,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35139 states to 35139 states and 42062 transitions. [2020-10-14 04:15:15,507 INFO L78 Accepts]: Start accepts. Automaton has 35139 states and 42062 transitions. Word has length 384 [2020-10-14 04:15:15,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:15:15,508 INFO L479 AbstractCegarLoop]: Abstraction has 35139 states and 42062 transitions. [2020-10-14 04:15:15,508 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:15:15,508 INFO L276 IsEmpty]: Start isEmpty. Operand 35139 states and 42062 transitions. [2020-10-14 04:15:15,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2020-10-14 04:15:15,565 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:15:15,565 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:15:15,565 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 04:15:15,566 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:15:15,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:15:15,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1652877095, now seen corresponding path program 1 times [2020-10-14 04:15:15,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:15:15,567 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1865990131] [2020-10-14 04:15:15,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:15:15,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:16,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:17,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:17,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 586 [2020-10-14 04:15:17,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:17,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1808 [2020-10-14 04:15:17,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:17,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:17,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 04:15:17,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:15:17,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 552 [2020-10-14 04:15:17,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 04:15:17,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:15:17,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:17,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:17,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:17,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:15:17,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:17,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 04:15:17,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:17,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:17,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:15:17,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:17,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:15:17,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:15:17,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:15:18,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:18,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:19,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:19,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 553 [2020-10-14 04:15:19,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:19,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1527 [2020-10-14 04:15:19,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:19,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:19,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 04:15:19,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:15:19,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 553 [2020-10-14 04:15:19,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:15:20,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:15:20,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:20,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:20,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:20,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 265 [2020-10-14 04:15:20,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:20,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 543 [2020-10-14 04:15:20,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:20,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:20,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 04:15:20,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:15:20,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 04:15:20,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:15:20,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 04:15:20,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:20,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:21,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:21,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 04:15:21,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:21,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-14 04:15:21,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:21,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:21,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 04:15:21,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:15:21,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-14 04:15:21,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:15:23,912 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:15:23,912 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1865990131] [2020-10-14 04:15:23,912 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:15:23,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 04:15:23,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687239118] [2020-10-14 04:15:23,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 04:15:23,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:15:23,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 04:15:23,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-14 04:15:23,915 INFO L87 Difference]: Start difference. First operand 35139 states and 42062 transitions. Second operand 9 states. [2020-10-14 04:15:40,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:15:40,758 INFO L93 Difference]: Finished difference Result 69756 states and 83744 transitions. [2020-10-14 04:15:40,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 04:15:40,760 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 572 [2020-10-14 04:15:40,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:15:40,814 INFO L225 Difference]: With dead ends: 69756 [2020-10-14 04:15:40,815 INFO L226 Difference]: Without dead ends: 28133 [2020-10-14 04:15:40,858 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2020-10-14 04:15:40,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28133 states. [2020-10-14 04:15:41,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28133 to 28090. [2020-10-14 04:15:41,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28090 states. [2020-10-14 04:15:41,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28090 states to 28090 states and 30143 transitions. [2020-10-14 04:15:41,212 INFO L78 Accepts]: Start accepts. Automaton has 28090 states and 30143 transitions. Word has length 572 [2020-10-14 04:15:41,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:15:41,212 INFO L479 AbstractCegarLoop]: Abstraction has 28090 states and 30143 transitions. [2020-10-14 04:15:41,213 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 04:15:41,213 INFO L276 IsEmpty]: Start isEmpty. Operand 28090 states and 30143 transitions. [2020-10-14 04:15:41,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 801 [2020-10-14 04:15:41,261 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:15:41,262 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:15:41,262 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 04:15:41,262 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:15:41,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:15:41,263 INFO L82 PathProgramCache]: Analyzing trace with hash 309558943, now seen corresponding path program 1 times [2020-10-14 04:15:41,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:15:41,263 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1912727041] [2020-10-14 04:15:41,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:15:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:41,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:41,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:44,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:46,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:46,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:46,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 818 [2020-10-14 04:15:46,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:15:46,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5301 [2020-10-14 04:15:46,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:46,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:46,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:15:46,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 132 [2020-10-14 04:15:46,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-14 04:15:46,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:15:47,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:15:47,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:47,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:47,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:47,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:15:47,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:47,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:15:47,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:47,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:47,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:15:47,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:47,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:15:47,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:15:47,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:15:47,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:47,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:47,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:47,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 04:15:47,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:47,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-14 04:15:47,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:47,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:47,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:15:47,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:47,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 04:15:47,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:15:47,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 04:15:47,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:47,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:47,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:47,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-14 04:15:47,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:47,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-14 04:15:47,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:47,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:47,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:15:47,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:15:47,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 04:15:47,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:15:47,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2020-10-14 04:15:47,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:47,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:47,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:47,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 553 [2020-10-14 04:15:47,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:47,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-10-14 04:15:47,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:47,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:47,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:15:47,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 550 [2020-10-14 04:15:47,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:15:47,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:15:48,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:15:48,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:48,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:48,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:48,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 265 [2020-10-14 04:15:48,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:48,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 04:15:48,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:48,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:48,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:15:48,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:48,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:15:48,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:15:48,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 04:15:48,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:48,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:48,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:48,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 04:15:48,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:48,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 04:15:48,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:48,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:48,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:15:48,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:48,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:15:48,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:15:48,798 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 158 proven. 105 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2020-10-14 04:15:48,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1912727041] [2020-10-14 04:15:48,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:15:48,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:15:48,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59278004] [2020-10-14 04:15:48,801 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:15:48,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:15:48,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:15:48,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:15:48,802 INFO L87 Difference]: Start difference. First operand 28090 states and 30143 transitions. Second operand 7 states. [2020-10-14 04:16:01,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:16:01,214 INFO L93 Difference]: Finished difference Result 56247 states and 60389 transitions. [2020-10-14 04:16:01,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 04:16:01,216 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 800 [2020-10-14 04:16:01,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:16:01,270 INFO L225 Difference]: With dead ends: 56247 [2020-10-14 04:16:01,270 INFO L226 Difference]: Without dead ends: 28163 [2020-10-14 04:16:01,301 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 04:16:01,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28163 states. [2020-10-14 04:16:01,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28163 to 28137. [2020-10-14 04:16:01,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28137 states. [2020-10-14 04:16:01,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28137 states to 28137 states and 29945 transitions. [2020-10-14 04:16:01,722 INFO L78 Accepts]: Start accepts. Automaton has 28137 states and 29945 transitions. Word has length 800 [2020-10-14 04:16:01,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:16:01,723 INFO L479 AbstractCegarLoop]: Abstraction has 28137 states and 29945 transitions. [2020-10-14 04:16:01,723 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:16:01,723 INFO L276 IsEmpty]: Start isEmpty. Operand 28137 states and 29945 transitions. [2020-10-14 04:16:01,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 913 [2020-10-14 04:16:01,751 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:16:01,752 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:16:01,752 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 04:16:01,752 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:16:01,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:16:01,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1270654779, now seen corresponding path program 1 times [2020-10-14 04:16:01,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:16:01,753 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1049540883] [2020-10-14 04:16:01,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:16:01,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:01,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:01,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:03,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:05,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:06,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:06,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 934 [2020-10-14 04:16:06,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:16:06,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5062 [2020-10-14 04:16:06,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:06,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:06,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:16:06,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 248 [2020-10-14 04:16:06,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-14 04:16:06,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:06,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:16:07,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:07,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:07,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:07,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:16:07,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:07,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:16:07,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:07,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:07,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:07,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:07,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:07,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:07,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:16:07,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:07,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:07,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:07,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 04:16:07,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:07,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 04:16:07,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:07,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:07,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:07,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:07,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:07,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:07,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 04:16:07,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:07,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:07,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:07,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 04:16:07,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:07,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 04:16:07,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:07,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:07,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:07,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:07,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:07,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:07,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-10-14 04:16:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:07,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:07,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:07,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 04:16:07,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:07,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 04:16:07,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:07,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:07,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:16:07,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:07,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 04:16:07,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:07,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2020-10-14 04:16:07,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:07,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:07,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:07,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-14 04:16:07,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:07,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 04:16:07,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:07,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:07,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:16:07,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:16:07,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 04:16:07,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:07,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2020-10-14 04:16:07,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:07,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:07,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:07,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 553 [2020-10-14 04:16:07,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:07,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-14 04:16:07,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:07,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:07,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:07,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 550 [2020-10-14 04:16:07,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:07,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:07,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:16:07,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:07,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:07,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:07,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 265 [2020-10-14 04:16:07,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:07,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 04:16:07,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:07,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:07,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:07,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:07,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:07,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:07,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 04:16:07,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:07,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:07,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:07,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 04:16:07,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:07,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 04:16:07,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:07,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:07,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:07,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:07,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:07,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:08,521 INFO L134 CoverageAnalysis]: Checked inductivity of 874 backedges. 332 proven. 105 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2020-10-14 04:16:08,521 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1049540883] [2020-10-14 04:16:08,521 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:16:08,521 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:16:08,522 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890142507] [2020-10-14 04:16:08,523 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:16:08,523 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:16:08,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:16:08,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:16:08,523 INFO L87 Difference]: Start difference. First operand 28137 states and 29945 transitions. Second operand 7 states. [2020-10-14 04:16:16,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:16:16,746 INFO L93 Difference]: Finished difference Result 57807 states and 61684 transitions. [2020-10-14 04:16:16,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 04:16:16,748 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 912 [2020-10-14 04:16:16,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:16:16,807 INFO L225 Difference]: With dead ends: 57807 [2020-10-14 04:16:16,807 INFO L226 Difference]: Without dead ends: 29676 [2020-10-14 04:16:16,841 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 04:16:16,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29676 states. [2020-10-14 04:16:17,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29676 to 29639. [2020-10-14 04:16:17,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29639 states. [2020-10-14 04:16:17,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29639 states to 29639 states and 31446 transitions. [2020-10-14 04:16:17,169 INFO L78 Accepts]: Start accepts. Automaton has 29639 states and 31446 transitions. Word has length 912 [2020-10-14 04:16:17,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:16:17,170 INFO L479 AbstractCegarLoop]: Abstraction has 29639 states and 31446 transitions. [2020-10-14 04:16:17,170 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:16:17,170 INFO L276 IsEmpty]: Start isEmpty. Operand 29639 states and 31446 transitions. [2020-10-14 04:16:17,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1002 [2020-10-14 04:16:17,206 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:16:17,207 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:16:17,207 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 04:16:17,207 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:16:17,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:16:17,208 INFO L82 PathProgramCache]: Analyzing trace with hash -623348961, now seen corresponding path program 1 times [2020-10-14 04:16:17,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:16:17,208 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [491807209] [2020-10-14 04:16:17,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:16:17,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:17,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:17,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:19,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:20,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:20,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:22,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:22,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1021 [2020-10-14 04:16:22,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 04:16:22,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 04:16:22,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:22,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:22,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:16:22,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 132 [2020-10-14 04:16:22,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-14 04:16:22,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:22,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:16:22,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:22,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:22,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:22,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:16:22,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:22,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:16:22,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:22,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:22,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:22,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:22,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:22,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:22,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:16:22,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:22,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:22,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:22,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 04:16:22,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:22,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 04:16:22,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:22,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:22,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:16:22,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:22,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 04:16:22,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:22,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 04:16:22,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:22,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:22,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:22,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 04:16:22,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:22,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 04:16:22,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:22,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:22,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:16:22,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:16:22,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 04:16:22,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:22,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2020-10-14 04:16:22,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:22,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:22,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:22,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 04:16:22,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:22,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-14 04:16:22,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:22,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:22,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:22,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-10-14 04:16:22,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:22,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:22,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2020-10-14 04:16:22,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:22,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:22,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:22,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 553 [2020-10-14 04:16:22,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:22,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-14 04:16:22,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:22,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:22,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:22,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 550 [2020-10-14 04:16:22,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:22,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:23,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:16:23,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:23,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:23,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:23,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 265 [2020-10-14 04:16:23,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:23,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 04:16:23,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:23,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:23,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:23,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:23,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:23,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:23,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 04:16:23,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:23,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:23,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:23,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 04:16:23,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:23,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 04:16:23,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:23,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:23,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:23,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:23,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:23,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:23,596 INFO L134 CoverageAnalysis]: Checked inductivity of 843 backedges. 185 proven. 220 refuted. 0 times theorem prover too weak. 438 trivial. 0 not checked. [2020-10-14 04:16:23,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [491807209] [2020-10-14 04:16:23,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:16:23,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:16:23,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102244309] [2020-10-14 04:16:23,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:16:23,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:16:23,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:16:23,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:16:23,598 INFO L87 Difference]: Start difference. First operand 29639 states and 31446 transitions. Second operand 7 states. [2020-10-14 04:16:32,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:16:32,462 INFO L93 Difference]: Finished difference Result 61022 states and 65589 transitions. [2020-10-14 04:16:32,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 04:16:32,466 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1001 [2020-10-14 04:16:32,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:16:32,542 INFO L225 Difference]: With dead ends: 61022 [2020-10-14 04:16:32,542 INFO L226 Difference]: Without dead ends: 31389 [2020-10-14 04:16:32,578 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 04:16:32,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31389 states. [2020-10-14 04:16:32,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31389 to 31190. [2020-10-14 04:16:32,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31190 states. [2020-10-14 04:16:32,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31190 states to 31190 states and 32892 transitions. [2020-10-14 04:16:32,963 INFO L78 Accepts]: Start accepts. Automaton has 31190 states and 32892 transitions. Word has length 1001 [2020-10-14 04:16:32,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:16:32,963 INFO L479 AbstractCegarLoop]: Abstraction has 31190 states and 32892 transitions. [2020-10-14 04:16:32,964 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:16:32,964 INFO L276 IsEmpty]: Start isEmpty. Operand 31190 states and 32892 transitions. [2020-10-14 04:16:32,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1025 [2020-10-14 04:16:32,997 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:16:32,998 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:16:32,998 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 04:16:32,998 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:16:32,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:16:32,998 INFO L82 PathProgramCache]: Analyzing trace with hash -60648787, now seen corresponding path program 1 times [2020-10-14 04:16:32,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:16:32,999 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1438096558] [2020-10-14 04:16:32,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:16:33,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:33,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:33,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:35,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:36,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:38,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:38,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1046 [2020-10-14 04:16:38,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:16:38,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5067 [2020-10-14 04:16:38,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:38,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:38,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:16:38,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 04:16:38,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-14 04:16:38,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:38,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:16:38,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:38,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:38,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:38,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:16:38,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:38,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:16:38,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:38,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:38,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:38,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:38,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:38,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:38,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:16:38,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:38,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:38,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:38,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 04:16:38,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:38,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 04:16:38,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:38,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:38,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:38,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:38,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:38,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:38,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 04:16:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:38,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:38,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:38,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 04:16:38,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:38,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 04:16:38,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:38,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:38,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:16:38,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:38,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 04:16:38,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:38,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-10-14 04:16:38,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:38,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:38,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:38,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 04:16:38,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:38,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 04:16:38,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:38,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:38,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:16:38,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:16:38,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-14 04:16:38,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:38,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2020-10-14 04:16:38,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:38,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:38,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:38,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 04:16:38,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:38,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-14 04:16:38,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:38,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:38,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:38,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-10-14 04:16:38,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:38,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:38,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2020-10-14 04:16:38,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:38,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:38,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:38,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 553 [2020-10-14 04:16:38,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:38,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-10-14 04:16:38,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:38,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:38,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:38,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 550 [2020-10-14 04:16:38,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:38,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:38,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:16:38,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:38,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:38,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:38,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 265 [2020-10-14 04:16:38,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:38,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 04:16:38,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:38,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:38,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:38,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:38,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:38,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:38,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 04:16:38,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:38,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:39,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:39,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 04:16:39,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:39,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 04:16:39,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:39,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:39,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:39,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:39,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:39,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0