/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/nested_delay_notd2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 00:05:46,987 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 00:05:46,991 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 00:05:47,031 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 00:05:47,031 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 00:05:47,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 00:05:47,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 00:05:47,044 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 00:05:47,046 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 00:05:47,050 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 00:05:47,051 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 00:05:47,052 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 00:05:47,052 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 00:05:47,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 00:05:47,057 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 00:05:47,058 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 00:05:47,059 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 00:05:47,060 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 00:05:47,062 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 00:05:47,070 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 00:05:47,072 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 00:05:47,073 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 00:05:47,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 00:05:47,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 00:05:47,086 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 00:05:47,087 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 00:05:47,087 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 00:05:47,088 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 00:05:47,093 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 00:05:47,094 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 00:05:47,094 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 00:05:47,095 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 00:05:47,096 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 00:05:47,101 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 00:05:47,102 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 00:05:47,102 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 00:05:47,102 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 00:05:47,103 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 00:05:47,103 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 00:05:47,103 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 00:05:47,104 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 00:05:47,105 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 [2020-10-15 00:05:47,126 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 00:05:47,127 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 00:05:47,128 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 00:05:47,128 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 00:05:47,128 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 00:05:47,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 00:05:47,128 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 00:05:47,129 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 00:05:47,129 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 00:05:47,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 00:05:47,129 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 00:05:47,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 00:05:47,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 00:05:47,130 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 00:05:47,130 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 00:05:47,130 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 00:05:47,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 00:05:47,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 00:05:47,131 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 00:05:47,131 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 00:05:47,131 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 00:05:47,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 00:05:47,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 00:05:47,132 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 00:05:47,132 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 00:05:47,132 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 00:05:47,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 00:05:47,132 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 00:05:47,133 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 00:05:47,133 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 00:05:47,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 00:05:47,464 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 00:05:47,474 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 00:05:47,476 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 00:05:47,476 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 00:05:47,477 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/nested_delay_notd2.c [2020-10-15 00:05:47,538 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b0d76e897/aa595518a1af47eca2b6e2e74f63b275/FLAGa78a65cc9 [2020-10-15 00:05:47,998 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 00:05:47,999 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops-crafted-1/nested_delay_notd2.c [2020-10-15 00:05:48,006 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b0d76e897/aa595518a1af47eca2b6e2e74f63b275/FLAGa78a65cc9 [2020-10-15 00:05:48,373 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b0d76e897/aa595518a1af47eca2b6e2e74f63b275 [2020-10-15 00:05:48,382 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 00:05:48,384 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 00:05:48,385 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 00:05:48,385 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 00:05:48,389 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 00:05:48,390 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:05:48" (1/1) ... [2020-10-15 00:05:48,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d407afa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:05:48, skipping insertion in model container [2020-10-15 00:05:48,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:05:48" (1/1) ... [2020-10-15 00:05:48,406 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 00:05:48,431 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 00:05:48,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 00:05:48,679 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 00:05:48,711 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 00:05:48,728 INFO L208 MainTranslator]: Completed translation [2020-10-15 00:05:48,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:05:48 WrapperNode [2020-10-15 00:05:48,728 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 00:05:48,729 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 00:05:48,729 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 00:05:48,729 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 00:05:48,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:05:48" (1/1) ... [2020-10-15 00:05:48,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:05:48" (1/1) ... [2020-10-15 00:05:48,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:05:48" (1/1) ... [2020-10-15 00:05:48,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:05:48" (1/1) ... [2020-10-15 00:05:48,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:05:48" (1/1) ... [2020-10-15 00:05:48,844 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:05:48" (1/1) ... [2020-10-15 00:05:48,845 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:05:48" (1/1) ... [2020-10-15 00:05:48,847 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 00:05:48,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 00:05:48,848 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 00:05:48,848 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 00:05:48,849 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:05:48" (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 [2020-10-15 00:05:48,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 00:05:48,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 00:05:48,917 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 00:05:48,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-15 00:05:48,917 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 00:05:48,917 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 00:05:48,918 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 00:05:48,918 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 00:05:48,918 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-15 00:05:48,919 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-15 00:05:48,919 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 00:05:48,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 00:05:48,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 00:05:49,142 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 00:05:49,142 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-15 00:05:49,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:05:49 BoogieIcfgContainer [2020-10-15 00:05:49,146 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 00:05:49,147 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 00:05:49,148 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 00:05:49,151 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 00:05:49,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 12:05:48" (1/3) ... [2020-10-15 00:05:49,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40c5a848 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:05:49, skipping insertion in model container [2020-10-15 00:05:49,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:05:48" (2/3) ... [2020-10-15 00:05:49,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40c5a848 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:05:49, skipping insertion in model container [2020-10-15 00:05:49,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:05:49" (3/3) ... [2020-10-15 00:05:49,155 INFO L109 eAbstractionObserver]: Analyzing ICFG nested_delay_notd2.c [2020-10-15 00:05:49,166 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 00:05:49,174 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 00:05:49,195 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 00:05:49,239 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 00:05:49,239 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 00:05:49,239 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 00:05:49,240 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 00:05:49,240 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 00:05:49,240 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 00:05:49,240 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 00:05:49,241 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 00:05:49,274 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-10-15 00:05:49,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 00:05:49,298 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:05:49,300 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] [2020-10-15 00:05:49,303 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:05:49,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:05:49,313 INFO L82 PathProgramCache]: Analyzing trace with hash -1722053448, now seen corresponding path program 1 times [2020-10-15 00:05:49,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:05:49,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1709240198] [2020-10-15 00:05:49,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:05:49,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:05:49,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:49,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:49,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:49,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:49,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:49,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:05:49,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-15 00:05:49,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 00:05:49,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 346 [2020-10-15 00:05:49,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:05:49,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:05:49,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:05:49,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-15 00:05:49,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 00:05:49,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-15 00:05:49,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:05:49,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:05:49,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:49,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:05:49,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:05:49,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:05:49,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 00:05:49,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:05:49,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:05:49,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:05:49,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:05:49,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:05:49,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:05:49,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:05:49,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:05:49,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:49,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:49,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:05:49,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:05:49,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 00:05:49,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 00:05:49,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:05:49,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:05:49,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:05:49,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:05:49,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:05:49,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:05:49,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:05:49,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1709240198] [2020-10-15 00:05:49,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:05:49,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 00:05:49,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549582752] [2020-10-15 00:05:49,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 00:05:49,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:05:49,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 00:05:49,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 00:05:49,908 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 4 states. [2020-10-15 00:05:50,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:05:50,097 INFO L93 Difference]: Finished difference Result 59 states and 91 transitions. [2020-10-15 00:05:50,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 00:05:50,106 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2020-10-15 00:05:50,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:05:50,115 INFO L225 Difference]: With dead ends: 59 [2020-10-15 00:05:50,115 INFO L226 Difference]: Without dead ends: 36 [2020-10-15 00:05:50,119 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 00:05:50,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-15 00:05:50,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32. [2020-10-15 00:05:50,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-15 00:05:50,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2020-10-15 00:05:50,161 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 21 [2020-10-15 00:05:50,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:05:50,162 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions. [2020-10-15 00:05:50,162 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 00:05:50,162 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2020-10-15 00:05:50,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-15 00:05:50,163 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:05:50,164 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:05:50,164 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 00:05:50,164 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:05:50,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:05:50,165 INFO L82 PathProgramCache]: Analyzing trace with hash 561006405, now seen corresponding path program 1 times [2020-10-15 00:05:50,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:05:50,166 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1315154041] [2020-10-15 00:05:50,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:05:50,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:05:50,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:50,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:05:50,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-15 00:05:50,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:05:50,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-15 00:05:50,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:05:50,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:05:50,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 00:05:50,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:05:50,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 00:05:50,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:05:50,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:05:50,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:05:50,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:50,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:05:50,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:05:50,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:05:50,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 00:05:50,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:05:50,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:05:50,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:05:50,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:05:50,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:05:50,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:05:50,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:05:50,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:05:50,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:50,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:05:50,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:05:50,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:05:50,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 00:05:50,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:05:50,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:05:50,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:05:50,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:05:50,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:05:50,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:05:50,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:05:50,387 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1315154041] [2020-10-15 00:05:50,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:05:50,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 00:05:50,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490600703] [2020-10-15 00:05:50,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 00:05:50,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:05:50,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 00:05:50,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 00:05:50,391 INFO L87 Difference]: Start difference. First operand 32 states and 40 transitions. Second operand 5 states. [2020-10-15 00:05:50,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:05:50,541 INFO L93 Difference]: Finished difference Result 57 states and 75 transitions. [2020-10-15 00:05:50,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 00:05:50,542 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-10-15 00:05:50,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:05:50,543 INFO L225 Difference]: With dead ends: 57 [2020-10-15 00:05:50,544 INFO L226 Difference]: Without dead ends: 37 [2020-10-15 00:05:50,545 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 00:05:50,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-15 00:05:50,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 33. [2020-10-15 00:05:50,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-15 00:05:50,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 41 transitions. [2020-10-15 00:05:50,554 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 41 transitions. Word has length 22 [2020-10-15 00:05:50,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:05:50,554 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 41 transitions. [2020-10-15 00:05:50,554 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 00:05:50,555 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2020-10-15 00:05:50,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-15 00:05:50,556 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:05:50,556 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] [2020-10-15 00:05:50,556 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 00:05:50,556 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:05:50,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:05:50,557 INFO L82 PathProgramCache]: Analyzing trace with hash 1709050809, now seen corresponding path program 1 times [2020-10-15 00:05:50,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:05:50,557 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1486449888] [2020-10-15 00:05:50,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:05:50,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:05:50,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:50,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:50,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:50,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:50,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:50,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:51,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:51,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:51,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:05:51,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-15 00:05:51,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 00:05:51,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1036 [2020-10-15 00:05:51,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:05:51,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:05:51,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 00:05:51,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:05:51,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-15 00:05:51,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:05:51,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:05:51,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:05:51,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:51,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:05:51,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:05:51,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:05:51,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:05:51,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:05:51,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:05:51,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:05:51,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:05:51,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:05:51,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:05:51,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:05:51,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:05:51,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:51,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:05:51,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:05:51,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:05:51,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:05:51,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:05:51,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:05:51,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:05:51,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:05:51,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:05:51,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:05:51,676 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:05:51,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1486449888] [2020-10-15 00:05:51,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:05:51,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-15 00:05:51,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082184810] [2020-10-15 00:05:51,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 00:05:51,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:05:51,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 00:05:51,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 00:05:51,679 INFO L87 Difference]: Start difference. First operand 33 states and 41 transitions. Second operand 6 states. [2020-10-15 00:05:51,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:05:51,828 INFO L93 Difference]: Finished difference Result 64 states and 85 transitions. [2020-10-15 00:05:51,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 00:05:51,829 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-10-15 00:05:51,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:05:51,830 INFO L225 Difference]: With dead ends: 64 [2020-10-15 00:05:51,830 INFO L226 Difference]: Without dead ends: 43 [2020-10-15 00:05:51,831 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-15 00:05:51,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-15 00:05:51,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 38. [2020-10-15 00:05:51,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-15 00:05:51,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 47 transitions. [2020-10-15 00:05:51,840 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 47 transitions. Word has length 24 [2020-10-15 00:05:51,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:05:51,840 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 47 transitions. [2020-10-15 00:05:51,841 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 00:05:51,841 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2020-10-15 00:05:51,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 00:05:51,842 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:05:51,842 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:05:51,842 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 00:05:51,843 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:05:51,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:05:51,843 INFO L82 PathProgramCache]: Analyzing trace with hash 243766181, now seen corresponding path program 2 times [2020-10-15 00:05:51,843 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:05:51,843 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [822381074] [2020-10-15 00:05:51,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:05:51,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:05:51,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:51,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:51,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:51,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:51,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:51,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:52,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:52,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:52,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:52,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:52,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:52,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:52,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:53,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:53,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:05:53,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 00:05:53,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 00:05:53,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2064 [2020-10-15 00:05:53,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:05:53,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:05:53,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 00:05:53,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:05:53,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 00:05:53,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:05:53,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:05:53,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:05:53,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:53,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:05:53,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:05:53,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:05:53,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:05:53,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:05:53,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:05:53,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:05:53,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:05:53,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:05:53,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:05:53,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:05:53,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:05:53,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:53,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:05:53,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:05:53,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:05:53,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:05:53,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:05:53,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:05:53,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:05:53,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:05:53,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:05:53,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:05:53,980 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:05:53,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [822381074] [2020-10-15 00:05:53,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:05:53,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-15 00:05:53,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449800669] [2020-10-15 00:05:53,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 00:05:53,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:05:53,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 00:05:53,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 00:05:53,983 INFO L87 Difference]: Start difference. First operand 38 states and 47 transitions. Second operand 7 states. [2020-10-15 00:05:54,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:05:54,163 INFO L93 Difference]: Finished difference Result 75 states and 99 transitions. [2020-10-15 00:05:54,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 00:05:54,164 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-10-15 00:05:54,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:05:54,165 INFO L225 Difference]: With dead ends: 75 [2020-10-15 00:05:54,165 INFO L226 Difference]: Without dead ends: 49 [2020-10-15 00:05:54,166 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-15 00:05:54,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-15 00:05:54,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 44. [2020-10-15 00:05:54,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-15 00:05:54,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 55 transitions. [2020-10-15 00:05:54,175 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 55 transitions. Word has length 27 [2020-10-15 00:05:54,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:05:54,175 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 55 transitions. [2020-10-15 00:05:54,175 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 00:05:54,176 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 55 transitions. [2020-10-15 00:05:54,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-15 00:05:54,177 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:05:54,177 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:05:54,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 00:05:54,177 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:05:54,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:05:54,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1997009977, now seen corresponding path program 3 times [2020-10-15 00:05:54,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:05:54,178 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [967155777] [2020-10-15 00:05:54,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:05:54,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:05:54,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:54,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:54,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:54,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:54,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:54,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:54,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:54,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:54,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:54,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:54,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:54,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:54,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:54,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:54,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:54,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:54,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:55,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:55,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:55,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:55,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:56,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:56,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:59,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:05:59,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-15 00:05:59,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 23 [2020-10-15 00:05:59,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 00:05:59,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:05:59,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:05:59,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 00:05:59,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:05:59,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-15 00:05:59,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:05:59,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:05:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:05:59,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:59,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:05:59,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:05:59,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:05:59,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 00:05:59,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:05:59,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:05:59,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:05:59,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:05:59,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:05:59,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:05:59,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:05:59,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:05:59,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:59,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:05:59,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:05:59,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:05:59,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 00:05:59,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:05:59,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:05:59,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:05:59,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:05:59,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:05:59,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:05:59,275 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-15 00:05:59,275 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [967155777] [2020-10-15 00:05:59,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:05:59,276 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-15 00:05:59,276 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210332732] [2020-10-15 00:05:59,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 00:05:59,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:05:59,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 00:05:59,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-15 00:05:59,278 INFO L87 Difference]: Start difference. First operand 44 states and 55 transitions. Second operand 7 states. [2020-10-15 00:05:59,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:05:59,539 INFO L93 Difference]: Finished difference Result 108 states and 140 transitions. [2020-10-15 00:05:59,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 00:05:59,540 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2020-10-15 00:05:59,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:05:59,541 INFO L225 Difference]: With dead ends: 108 [2020-10-15 00:05:59,541 INFO L226 Difference]: Without dead ends: 76 [2020-10-15 00:05:59,543 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-15 00:05:59,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-10-15 00:05:59,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 61. [2020-10-15 00:05:59,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-10-15 00:05:59,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 77 transitions. [2020-10-15 00:05:59,564 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 77 transitions. Word has length 30 [2020-10-15 00:05:59,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:05:59,564 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 77 transitions. [2020-10-15 00:05:59,565 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 00:05:59,565 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 77 transitions. [2020-10-15 00:05:59,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-15 00:05:59,566 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:05:59,566 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:05:59,567 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 00:05:59,567 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:05:59,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:05:59,568 INFO L82 PathProgramCache]: Analyzing trace with hash 975941623, now seen corresponding path program 1 times [2020-10-15 00:05:59,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:05:59,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1694189441] [2020-10-15 00:05:59,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:05:59,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:05:59,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:59,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:59,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:59,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:59,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:59,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:59,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:59,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:59,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:59,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:59,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:59,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:05:59,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:00,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:00,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-15 00:06:00,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 00:06:00,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 833 [2020-10-15 00:06:00,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:00,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:00,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 00:06:00,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:06:00,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-15 00:06:00,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:06:00,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:00,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:00,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:00,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:00,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:00,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:00,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:06:00,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:00,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:00,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:00,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:00,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:06:00,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:06:00,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:06:00,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:00,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:00,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:00,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:06:00,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:00,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:06:00,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:00,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:00,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:00,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:00,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:06:00,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 00:06:00,538 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 00:06:00,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1694189441] [2020-10-15 00:06:00,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:00,542 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-15 00:06:00,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223806487] [2020-10-15 00:06:00,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 00:06:00,543 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:00,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 00:06:00,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 00:06:00,544 INFO L87 Difference]: Start difference. First operand 61 states and 77 transitions. Second operand 8 states. [2020-10-15 00:06:01,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:01,029 INFO L93 Difference]: Finished difference Result 153 states and 203 transitions. [2020-10-15 00:06:01,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 00:06:01,030 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 30 [2020-10-15 00:06:01,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:01,032 INFO L225 Difference]: With dead ends: 153 [2020-10-15 00:06:01,032 INFO L226 Difference]: Without dead ends: 104 [2020-10-15 00:06:01,034 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2020-10-15 00:06:01,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-10-15 00:06:01,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 79. [2020-10-15 00:06:01,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-15 00:06:01,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 102 transitions. [2020-10-15 00:06:01,058 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 102 transitions. Word has length 30 [2020-10-15 00:06:01,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:01,060 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 102 transitions. [2020-10-15 00:06:01,060 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 00:06:01,060 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 102 transitions. [2020-10-15 00:06:01,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-15 00:06:01,064 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:01,064 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:01,065 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 00:06:01,065 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:01,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:01,066 INFO L82 PathProgramCache]: Analyzing trace with hash -2130824325, now seen corresponding path program 1 times [2020-10-15 00:06:01,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:01,066 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [840388456] [2020-10-15 00:06:01,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:01,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:01,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:01,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:01,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:01,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:01,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:01,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:01,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-15 00:06:01,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 00:06:01,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-10-15 00:06:01,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:01,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:01,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 00:06:01,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:06:01,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 00:06:01,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:01,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:01,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:01,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:01,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:01,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:01,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:06:01,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:01,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:01,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:01,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:01,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:06:01,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:06:01,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:06:01,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:01,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:01,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:01,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:06:01,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:01,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:06:01,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:01,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:01,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:01,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:01,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:06:01,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:06:01,424 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:06:01,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [840388456] [2020-10-15 00:06:01,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:01,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-15 00:06:01,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691558205] [2020-10-15 00:06:01,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 00:06:01,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:01,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 00:06:01,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-15 00:06:01,427 INFO L87 Difference]: Start difference. First operand 79 states and 102 transitions. Second operand 8 states. [2020-10-15 00:06:01,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:01,634 INFO L93 Difference]: Finished difference Result 176 states and 233 transitions. [2020-10-15 00:06:01,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 00:06:01,635 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 30 [2020-10-15 00:06:01,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:01,639 INFO L225 Difference]: With dead ends: 176 [2020-10-15 00:06:01,639 INFO L226 Difference]: Without dead ends: 109 [2020-10-15 00:06:01,643 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-15 00:06:01,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-15 00:06:01,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 90. [2020-10-15 00:06:01,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-15 00:06:01,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 116 transitions. [2020-10-15 00:06:01,665 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 116 transitions. Word has length 30 [2020-10-15 00:06:01,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:01,665 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 116 transitions. [2020-10-15 00:06:01,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 00:06:01,666 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 116 transitions. [2020-10-15 00:06:01,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-15 00:06:01,667 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:01,667 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:01,667 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 00:06:01,667 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:01,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:01,668 INFO L82 PathProgramCache]: Analyzing trace with hash 850645223, now seen corresponding path program 2 times [2020-10-15 00:06:01,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:01,668 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [38148217] [2020-10-15 00:06:01,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:01,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:01,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:01,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:01,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:01,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:01,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:01,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:01,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:01,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:02,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:02,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-15 00:06:02,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 00:06:02,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 617 [2020-10-15 00:06:02,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:02,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:02,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 00:06:02,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:06:02,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 00:06:02,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:06:02,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:02,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:02,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:02,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:02,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:02,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:02,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 00:06:02,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:02,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:02,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:02,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:02,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:06:02,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:02,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:06:02,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:02,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:02,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:02,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:06:02,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:02,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:06:02,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:02,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:02,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:02,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:02,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:06:02,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:02,368 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:06:02,368 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [38148217] [2020-10-15 00:06:02,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:02,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-15 00:06:02,369 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293322717] [2020-10-15 00:06:02,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 00:06:02,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:02,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 00:06:02,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-15 00:06:02,370 INFO L87 Difference]: Start difference. First operand 90 states and 116 transitions. Second operand 9 states. [2020-10-15 00:06:02,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:02,582 INFO L93 Difference]: Finished difference Result 199 states and 263 transitions. [2020-10-15 00:06:02,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 00:06:02,584 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 33 [2020-10-15 00:06:02,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:02,585 INFO L225 Difference]: With dead ends: 199 [2020-10-15 00:06:02,585 INFO L226 Difference]: Without dead ends: 121 [2020-10-15 00:06:02,586 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2020-10-15 00:06:02,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-10-15 00:06:02,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 102. [2020-10-15 00:06:02,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-15 00:06:02,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 132 transitions. [2020-10-15 00:06:02,606 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 132 transitions. Word has length 33 [2020-10-15 00:06:02,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:02,607 INFO L479 AbstractCegarLoop]: Abstraction has 102 states and 132 transitions. [2020-10-15 00:06:02,607 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 00:06:02,607 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 132 transitions. [2020-10-15 00:06:02,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-15 00:06:02,611 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:02,611 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:02,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 00:06:02,614 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:02,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:02,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1886268411, now seen corresponding path program 3 times [2020-10-15 00:06:02,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:02,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2032918979] [2020-10-15 00:06:02,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:02,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:02,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:02,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:02,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:02,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:02,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:02,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:02,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:02,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:02,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:02,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:02,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:02,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:02,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:04,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:04,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 00:06:04,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 00:06:04,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1636 [2020-10-15 00:06:04,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:04,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:04,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 00:06:04,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:06:04,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-15 00:06:04,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:06:04,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:04,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:04,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:04,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:04,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:04,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:04,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:06:04,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:04,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:04,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:04,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:04,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:06:04,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:06:04,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:06:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:04,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:04,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:04,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:06:04,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:04,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:06:04,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:04,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:04,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:04,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:04,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:06:04,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:06:04,371 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-15 00:06:04,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2032918979] [2020-10-15 00:06:04,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:04,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-15 00:06:04,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691506392] [2020-10-15 00:06:04,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 00:06:04,378 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:04,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 00:06:04,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 00:06:04,379 INFO L87 Difference]: Start difference. First operand 102 states and 132 transitions. Second operand 9 states. [2020-10-15 00:06:04,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:04,819 INFO L93 Difference]: Finished difference Result 259 states and 340 transitions. [2020-10-15 00:06:04,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-15 00:06:04,820 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 36 [2020-10-15 00:06:04,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:04,821 INFO L225 Difference]: With dead ends: 259 [2020-10-15 00:06:04,822 INFO L226 Difference]: Without dead ends: 169 [2020-10-15 00:06:04,824 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-10-15 00:06:04,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-10-15 00:06:04,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 99. [2020-10-15 00:06:04,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-10-15 00:06:04,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 128 transitions. [2020-10-15 00:06:04,850 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 128 transitions. Word has length 36 [2020-10-15 00:06:04,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:04,850 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 128 transitions. [2020-10-15 00:06:04,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 00:06:04,850 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 128 transitions. [2020-10-15 00:06:04,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-15 00:06:04,853 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:04,853 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:04,853 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 00:06:04,854 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:04,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:04,854 INFO L82 PathProgramCache]: Analyzing trace with hash 865200057, now seen corresponding path program 4 times [2020-10-15 00:06:04,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:04,854 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [602825839] [2020-10-15 00:06:04,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:04,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:04,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:04,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:04,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:04,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:04,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:04,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:04,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:05,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:05,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:05,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 00:06:05,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 00:06:05,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 587 [2020-10-15 00:06:05,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:05,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:05,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 00:06:05,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:06:05,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-15 00:06:05,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:05,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:05,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:05,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:05,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:05,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:05,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:05,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:06:05,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:05,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:05,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:05,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:05,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:06:05,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:06:05,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:06:05,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:05,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:05,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:05,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:06:05,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:05,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:06:05,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:05,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:05,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:05,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:05,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:06:05,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:05,536 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:06:05,537 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [602825839] [2020-10-15 00:06:05,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:05,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-15 00:06:05,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329457105] [2020-10-15 00:06:05,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 00:06:05,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:05,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 00:06:05,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-15 00:06:05,539 INFO L87 Difference]: Start difference. First operand 99 states and 128 transitions. Second operand 10 states. [2020-10-15 00:06:05,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:05,779 INFO L93 Difference]: Finished difference Result 217 states and 287 transitions. [2020-10-15 00:06:05,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 00:06:05,780 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 36 [2020-10-15 00:06:05,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:05,781 INFO L225 Difference]: With dead ends: 217 [2020-10-15 00:06:05,781 INFO L226 Difference]: Without dead ends: 130 [2020-10-15 00:06:05,782 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2020-10-15 00:06:05,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-15 00:06:05,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 111. [2020-10-15 00:06:05,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-10-15 00:06:05,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 144 transitions. [2020-10-15 00:06:05,791 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 144 transitions. Word has length 36 [2020-10-15 00:06:05,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:05,792 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 144 transitions. [2020-10-15 00:06:05,792 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 00:06:05,792 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 144 transitions. [2020-10-15 00:06:05,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-15 00:06:05,793 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:05,793 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:05,793 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 00:06:05,793 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:05,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:05,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1697631209, now seen corresponding path program 5 times [2020-10-15 00:06:05,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:05,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1695056117] [2020-10-15 00:06:05,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:05,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:05,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:05,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:05,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:05,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:05,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:05,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:05,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:05,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:05,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:05,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:05,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:06,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:06,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:07,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:07,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 00:06:07,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 00:06:07,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1499 [2020-10-15 00:06:07,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:07,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:07,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 00:06:07,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:06:07,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-15 00:06:07,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:07,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:07,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:07,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:07,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:07,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:07,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:07,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:07,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:07,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:07,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:07,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:07,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:06:07,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:07,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:06:07,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:07,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:07,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:07,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:06:07,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:07,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:07,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:07,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:07,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:07,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:07,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:06:07,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:07,379 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-15 00:06:07,380 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1695056117] [2020-10-15 00:06:07,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:07,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-15 00:06:07,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391845675] [2020-10-15 00:06:07,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 00:06:07,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:07,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 00:06:07,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-15 00:06:07,382 INFO L87 Difference]: Start difference. First operand 111 states and 144 transitions. Second operand 10 states. [2020-10-15 00:06:07,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:07,738 INFO L93 Difference]: Finished difference Result 270 states and 355 transitions. [2020-10-15 00:06:07,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 00:06:07,739 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 39 [2020-10-15 00:06:07,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:07,740 INFO L225 Difference]: With dead ends: 270 [2020-10-15 00:06:07,740 INFO L226 Difference]: Without dead ends: 171 [2020-10-15 00:06:07,741 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2020-10-15 00:06:07,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-10-15 00:06:07,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 79. [2020-10-15 00:06:07,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-15 00:06:07,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 101 transitions. [2020-10-15 00:06:07,749 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 101 transitions. Word has length 39 [2020-10-15 00:06:07,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:07,749 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 101 transitions. [2020-10-15 00:06:07,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 00:06:07,749 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 101 transitions. [2020-10-15 00:06:07,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-15 00:06:07,750 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:07,750 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:07,750 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 00:06:07,750 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:07,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:07,751 INFO L82 PathProgramCache]: Analyzing trace with hash 676562855, now seen corresponding path program 6 times [2020-10-15 00:06:07,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:07,751 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1963428114] [2020-10-15 00:06:07,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:07,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:07,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:07,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:07,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:07,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:07,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:07,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:07,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:07,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:08,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:08,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 00:06:08,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 00:06:08,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 520 [2020-10-15 00:06:08,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:08,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:08,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 00:06:08,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:06:08,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 00:06:08,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:08,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:08,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:08,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:08,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:08,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:08,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:08,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:08,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:08,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:08,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:08,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:08,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:06:08,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:08,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:06:08,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:08,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:08,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:08,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:06:08,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:08,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:06:08,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:08,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:08,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:08,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:08,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:06:08,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:08,360 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:06:08,360 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1963428114] [2020-10-15 00:06:08,360 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:08,361 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-15 00:06:08,361 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252481365] [2020-10-15 00:06:08,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 00:06:08,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:08,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 00:06:08,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-10-15 00:06:08,362 INFO L87 Difference]: Start difference. First operand 79 states and 101 transitions. Second operand 11 states. [2020-10-15 00:06:08,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:08,668 INFO L93 Difference]: Finished difference Result 167 states and 220 transitions. [2020-10-15 00:06:08,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 00:06:08,669 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 39 [2020-10-15 00:06:08,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:08,669 INFO L225 Difference]: With dead ends: 167 [2020-10-15 00:06:08,670 INFO L226 Difference]: Without dead ends: 100 [2020-10-15 00:06:08,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2020-10-15 00:06:08,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-10-15 00:06:08,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 88. [2020-10-15 00:06:08,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-10-15 00:06:08,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 113 transitions. [2020-10-15 00:06:08,680 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 113 transitions. Word has length 39 [2020-10-15 00:06:08,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:08,681 INFO L479 AbstractCegarLoop]: Abstraction has 88 states and 113 transitions. [2020-10-15 00:06:08,681 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 00:06:08,681 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 113 transitions. [2020-10-15 00:06:08,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-15 00:06:08,683 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:08,683 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:08,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 00:06:08,683 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:08,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:08,684 INFO L82 PathProgramCache]: Analyzing trace with hash -176030405, now seen corresponding path program 7 times [2020-10-15 00:06:08,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:08,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [393960092] [2020-10-15 00:06:08,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:08,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:08,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:08,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:08,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:08,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:08,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:08,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:08,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:08,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:08,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:08,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:08,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:08,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:09,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:09,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:09,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-15 00:06:09,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 00:06:09,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1087 [2020-10-15 00:06:09,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:09,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:09,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 00:06:09,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:06:09,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-15 00:06:09,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:09,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:09,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:09,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:09,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:09,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:09,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:09,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:09,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:09,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:09,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:09,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:09,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:06:09,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:09,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:06:09,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:09,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:09,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:09,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:06:09,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:09,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:09,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:09,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:09,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:09,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:09,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:06:09,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:09,875 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-15 00:06:09,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [393960092] [2020-10-15 00:06:09,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:09,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-15 00:06:09,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47390101] [2020-10-15 00:06:09,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 00:06:09,876 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:09,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 00:06:09,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 00:06:09,877 INFO L87 Difference]: Start difference. First operand 88 states and 113 transitions. Second operand 11 states. [2020-10-15 00:06:10,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:10,319 INFO L93 Difference]: Finished difference Result 219 states and 287 transitions. [2020-10-15 00:06:10,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 00:06:10,320 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 42 [2020-10-15 00:06:10,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:10,322 INFO L225 Difference]: With dead ends: 219 [2020-10-15 00:06:10,322 INFO L226 Difference]: Without dead ends: 143 [2020-10-15 00:06:10,323 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2020-10-15 00:06:10,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-10-15 00:06:10,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 85. [2020-10-15 00:06:10,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-15 00:06:10,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 109 transitions. [2020-10-15 00:06:10,331 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 109 transitions. Word has length 42 [2020-10-15 00:06:10,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:10,331 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 109 transitions. [2020-10-15 00:06:10,331 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 00:06:10,332 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 109 transitions. [2020-10-15 00:06:10,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-15 00:06:10,332 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:10,332 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:10,333 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 00:06:10,333 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:10,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:10,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1197098759, now seen corresponding path program 8 times [2020-10-15 00:06:10,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:10,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [685567171] [2020-10-15 00:06:10,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:10,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:10,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:10,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:10,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:10,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:10,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:10,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:10,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:10,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:10,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:10,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-15 00:06:10,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 00:06:10,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 346 [2020-10-15 00:06:10,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:10,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:10,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 00:06:10,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:06:10,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-15 00:06:10,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:10,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:10,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:10,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:10,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:10,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:10,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:10,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:10,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:10,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:10,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:10,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:10,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:06:10,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:10,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:06:10,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:10,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:10,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:10,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:06:10,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:10,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:10,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:10,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:10,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:10,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:10,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:06:10,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:10,777 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 00:06:10,777 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [685567171] [2020-10-15 00:06:10,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:10,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-15 00:06:10,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962083362] [2020-10-15 00:06:10,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 00:06:10,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:10,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 00:06:10,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-10-15 00:06:10,779 INFO L87 Difference]: Start difference. First operand 85 states and 109 transitions. Second operand 12 states. [2020-10-15 00:06:11,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:11,272 INFO L93 Difference]: Finished difference Result 204 states and 269 transitions. [2020-10-15 00:06:11,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-15 00:06:11,275 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 42 [2020-10-15 00:06:11,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:11,276 INFO L225 Difference]: With dead ends: 204 [2020-10-15 00:06:11,277 INFO L226 Difference]: Without dead ends: 131 [2020-10-15 00:06:11,278 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2020-10-15 00:06:11,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-10-15 00:06:11,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 83. [2020-10-15 00:06:11,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-10-15 00:06:11,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 107 transitions. [2020-10-15 00:06:11,286 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 107 transitions. Word has length 42 [2020-10-15 00:06:11,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:11,286 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 107 transitions. [2020-10-15 00:06:11,286 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 00:06:11,286 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 107 transitions. [2020-10-15 00:06:11,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-15 00:06:11,287 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:11,287 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:11,287 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 00:06:11,288 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:11,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:11,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1783904773, now seen corresponding path program 9 times [2020-10-15 00:06:11,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:11,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1164195474] [2020-10-15 00:06:11,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:11,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:11,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:11,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:11,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:11,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:11,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:11,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:11,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-15 00:06:11,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 00:06:11,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-10-15 00:06:11,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:11,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:11,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 00:06:11,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:06:11,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-15 00:06:11,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:11,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:11,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:11,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:11,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:11,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:11,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:11,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:11,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:11,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:11,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:11,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:11,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:06:11,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:11,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:06:11,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:11,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:11,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:11,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:06:11,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:11,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:11,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:11,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:11,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:11,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:11,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:06:11,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:11,627 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:06:11,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1164195474] [2020-10-15 00:06:11,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:11,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-15 00:06:11,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786199216] [2020-10-15 00:06:11,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 00:06:11,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:11,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 00:06:11,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-10-15 00:06:11,630 INFO L87 Difference]: Start difference. First operand 83 states and 107 transitions. Second operand 12 states. [2020-10-15 00:06:11,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:11,945 INFO L93 Difference]: Finished difference Result 174 states and 230 transitions. [2020-10-15 00:06:11,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 00:06:11,946 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 42 [2020-10-15 00:06:11,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:11,947 INFO L225 Difference]: With dead ends: 174 [2020-10-15 00:06:11,947 INFO L226 Difference]: Without dead ends: 103 [2020-10-15 00:06:11,948 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=279, Unknown=0, NotChecked=0, Total=420 [2020-10-15 00:06:11,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-10-15 00:06:11,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 91. [2020-10-15 00:06:11,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-15 00:06:11,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 117 transitions. [2020-10-15 00:06:11,958 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 117 transitions. Word has length 42 [2020-10-15 00:06:11,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:11,959 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 117 transitions. [2020-10-15 00:06:11,959 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 00:06:11,959 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 117 transitions. [2020-10-15 00:06:11,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-15 00:06:11,959 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:11,960 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:11,960 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-15 00:06:11,960 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:11,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:11,960 INFO L82 PathProgramCache]: Analyzing trace with hash -2055262617, now seen corresponding path program 10 times [2020-10-15 00:06:11,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:11,961 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [631364556] [2020-10-15 00:06:11,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:11,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:11,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:11,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:11,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:12,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:12,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:12,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:12,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:12,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:12,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:12,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 00:06:12,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 00:06:12,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-10-15 00:06:12,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:12,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:12,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 00:06:12,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:06:12,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-15 00:06:12,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:12,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:12,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:12,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:12,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:12,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:12,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:12,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:12,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:12,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:12,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:12,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:12,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:06:12,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:12,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:06:12,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:12,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:12,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:12,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:06:12,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:12,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:12,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:12,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:12,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:12,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:12,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:06:12,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:12,338 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 00:06:12,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [631364556] [2020-10-15 00:06:12,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:12,338 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-15 00:06:12,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950911755] [2020-10-15 00:06:12,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 00:06:12,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:12,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 00:06:12,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-10-15 00:06:12,340 INFO L87 Difference]: Start difference. First operand 91 states and 117 transitions. Second operand 13 states. [2020-10-15 00:06:12,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:12,865 INFO L93 Difference]: Finished difference Result 219 states and 289 transitions. [2020-10-15 00:06:12,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-15 00:06:12,866 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 45 [2020-10-15 00:06:12,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:12,867 INFO L225 Difference]: With dead ends: 219 [2020-10-15 00:06:12,868 INFO L226 Difference]: Without dead ends: 140 [2020-10-15 00:06:12,869 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=247, Invalid=683, Unknown=0, NotChecked=0, Total=930 [2020-10-15 00:06:12,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-10-15 00:06:12,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 89. [2020-10-15 00:06:12,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-10-15 00:06:12,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 115 transitions. [2020-10-15 00:06:12,877 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 115 transitions. Word has length 45 [2020-10-15 00:06:12,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:12,878 INFO L479 AbstractCegarLoop]: Abstraction has 89 states and 115 transitions. [2020-10-15 00:06:12,878 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 00:06:12,878 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 115 transitions. [2020-10-15 00:06:12,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-15 00:06:12,879 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:12,879 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:12,879 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-15 00:06:12,879 INFO L427 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:12,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:12,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1652898665, now seen corresponding path program 11 times [2020-10-15 00:06:12,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:12,880 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [571323755] [2020-10-15 00:06:12,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:12,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:12,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:12,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:12,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:12,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:12,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:13,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:13,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 00:06:13,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 00:06:13,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-10-15 00:06:13,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:13,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:13,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 00:06:13,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:06:13,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-15 00:06:13,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:13,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:13,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:13,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:13,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:13,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:13,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:13,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:13,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:13,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:13,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:13,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:13,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:06:13,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:13,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:06:13,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:13,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:13,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:13,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:06:13,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:13,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:13,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:13,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:13,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:13,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:13,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:06:13,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:06:13,273 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:06:13,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [571323755] [2020-10-15 00:06:13,273 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:13,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-15 00:06:13,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465588138] [2020-10-15 00:06:13,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 00:06:13,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:13,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 00:06:13,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2020-10-15 00:06:13,275 INFO L87 Difference]: Start difference. First operand 89 states and 115 transitions. Second operand 13 states. [2020-10-15 00:06:13,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:13,619 INFO L93 Difference]: Finished difference Result 186 states and 246 transitions. [2020-10-15 00:06:13,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 00:06:13,620 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 45 [2020-10-15 00:06:13,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:13,621 INFO L225 Difference]: With dead ends: 186 [2020-10-15 00:06:13,621 INFO L226 Difference]: Without dead ends: 109 [2020-10-15 00:06:13,622 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=171, Invalid=335, Unknown=0, NotChecked=0, Total=506 [2020-10-15 00:06:13,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-15 00:06:13,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 97. [2020-10-15 00:06:13,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-15 00:06:13,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 125 transitions. [2020-10-15 00:06:13,631 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 125 transitions. Word has length 45 [2020-10-15 00:06:13,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:13,632 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 125 transitions. [2020-10-15 00:06:13,632 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 00:06:13,632 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 125 transitions. [2020-10-15 00:06:13,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-15 00:06:13,632 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:13,633 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:13,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-15 00:06:13,633 INFO L427 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:13,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:13,633 INFO L82 PathProgramCache]: Analyzing trace with hash 325556793, now seen corresponding path program 12 times [2020-10-15 00:06:13,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:13,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [361575778] [2020-10-15 00:06:13,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:13,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:13,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:13,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:13,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:13,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:13,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:13,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:13,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:13,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:14,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:14,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-15 00:06:14,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 00:06:14,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 723 [2020-10-15 00:06:14,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:14,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:14,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-15 00:06:14,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:06:14,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 00:06:14,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:14,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:14,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:14,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:14,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:14,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:14,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:14,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 00:06:14,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:14,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:14,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:14,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:14,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:06:14,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:14,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:06:14,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:14,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:14,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:14,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:06:14,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:14,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:14,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:14,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:14,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:14,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:14,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:06:14,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:06:14,500 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:06:14,500 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [361575778] [2020-10-15 00:06:14,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:14,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-15 00:06:14,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373909388] [2020-10-15 00:06:14,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 00:06:14,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:14,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 00:06:14,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2020-10-15 00:06:14,513 INFO L87 Difference]: Start difference. First operand 97 states and 125 transitions. Second operand 14 states. [2020-10-15 00:06:14,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:14,777 INFO L93 Difference]: Finished difference Result 203 states and 268 transitions. [2020-10-15 00:06:14,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-15 00:06:14,778 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 48 [2020-10-15 00:06:14,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:14,780 INFO L225 Difference]: With dead ends: 203 [2020-10-15 00:06:14,780 INFO L226 Difference]: Without dead ends: 118 [2020-10-15 00:06:14,781 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=204, Invalid=396, Unknown=0, NotChecked=0, Total=600 [2020-10-15 00:06:14,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-10-15 00:06:14,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 106. [2020-10-15 00:06:14,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-15 00:06:14,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 137 transitions. [2020-10-15 00:06:14,790 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 137 transitions. Word has length 48 [2020-10-15 00:06:14,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:14,790 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 137 transitions. [2020-10-15 00:06:14,790 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 00:06:14,790 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 137 transitions. [2020-10-15 00:06:14,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-15 00:06:14,791 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:14,791 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 7, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:14,791 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-15 00:06:14,791 INFO L427 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:14,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:14,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1247742313, now seen corresponding path program 13 times [2020-10-15 00:06:14,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:14,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [794915230] [2020-10-15 00:06:14,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:14,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:14,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:14,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:14,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:14,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:14,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:14,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:14,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:14,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:14,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:14,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:14,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:14,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:15,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:15,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:15,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-15 00:06:15,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 00:06:15,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 909 [2020-10-15 00:06:15,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:15,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:15,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-15 00:06:15,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:06:15,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-15 00:06:15,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:15,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:15,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:15,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:15,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:15,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:15,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:15,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:06:15,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:15,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:15,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:15,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:15,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:06:15,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:15,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:06:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:15,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:15,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:15,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:06:15,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:15,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:15,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:15,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:15,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:15,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:15,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:06:15,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:15,822 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-15 00:06:15,822 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [794915230] [2020-10-15 00:06:15,822 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:15,822 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-15 00:06:15,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867598336] [2020-10-15 00:06:15,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 00:06:15,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:15,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 00:06:15,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-10-15 00:06:15,823 INFO L87 Difference]: Start difference. First operand 106 states and 137 transitions. Second operand 14 states. [2020-10-15 00:06:16,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:16,480 INFO L93 Difference]: Finished difference Result 264 states and 347 transitions. [2020-10-15 00:06:16,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-15 00:06:16,481 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 51 [2020-10-15 00:06:16,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:16,482 INFO L225 Difference]: With dead ends: 264 [2020-10-15 00:06:16,483 INFO L226 Difference]: Without dead ends: 170 [2020-10-15 00:06:16,484 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=302, Invalid=820, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 00:06:16,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-10-15 00:06:16,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 103. [2020-10-15 00:06:16,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-10-15 00:06:16,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 133 transitions. [2020-10-15 00:06:16,495 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 133 transitions. Word has length 51 [2020-10-15 00:06:16,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:16,495 INFO L479 AbstractCegarLoop]: Abstraction has 103 states and 133 transitions. [2020-10-15 00:06:16,496 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 00:06:16,496 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 133 transitions. [2020-10-15 00:06:16,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-15 00:06:16,496 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:16,496 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:16,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-15 00:06:16,497 INFO L427 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:16,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:16,497 INFO L82 PathProgramCache]: Analyzing trace with hash 226673959, now seen corresponding path program 14 times [2020-10-15 00:06:16,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:16,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1973889014] [2020-10-15 00:06:16,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:16,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:16,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:16,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:16,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:16,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:16,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:16,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:16,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:16,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:17,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:17,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-15 00:06:17,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 00:06:17,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 497 [2020-10-15 00:06:17,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:17,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:17,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 00:06:17,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:06:17,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-15 00:06:17,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:17,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:17,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:17,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:17,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:17,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:17,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:17,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:06:17,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:17,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:17,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:17,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:17,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:06:17,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:17,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:06:17,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:17,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:17,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:17,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:06:17,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:17,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:17,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:17,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:17,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:17,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:17,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:06:17,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:17,152 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:06:17,153 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1973889014] [2020-10-15 00:06:17,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:17,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-15 00:06:17,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481419252] [2020-10-15 00:06:17,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-15 00:06:17,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:17,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-15 00:06:17,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=128, Unknown=0, NotChecked=0, Total=210 [2020-10-15 00:06:17,154 INFO L87 Difference]: Start difference. First operand 103 states and 133 transitions. Second operand 15 states. [2020-10-15 00:06:17,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:17,595 INFO L93 Difference]: Finished difference Result 215 states and 284 transitions. [2020-10-15 00:06:17,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 00:06:17,597 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 51 [2020-10-15 00:06:17,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:17,598 INFO L225 Difference]: With dead ends: 215 [2020-10-15 00:06:17,598 INFO L226 Difference]: Without dead ends: 124 [2020-10-15 00:06:17,599 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=240, Invalid=462, Unknown=0, NotChecked=0, Total=702 [2020-10-15 00:06:17,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-15 00:06:17,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 112. [2020-10-15 00:06:17,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-15 00:06:17,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 145 transitions. [2020-10-15 00:06:17,609 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 145 transitions. Word has length 51 [2020-10-15 00:06:17,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:17,610 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 145 transitions. [2020-10-15 00:06:17,610 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-15 00:06:17,610 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 145 transitions. [2020-10-15 00:06:17,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-15 00:06:17,610 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:17,610 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 8, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:17,611 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-15 00:06:17,611 INFO L427 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:17,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:17,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1776799675, now seen corresponding path program 15 times [2020-10-15 00:06:17,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:17,612 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [348913027] [2020-10-15 00:06:17,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:17,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:17,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:17,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:17,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:17,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:17,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:17,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:17,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:17,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:17,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:17,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:17,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:17,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:18,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:18,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:18,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 00:06:18,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 00:06:18,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1282 [2020-10-15 00:06:18,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:18,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:18,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 00:06:18,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:06:18,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-15 00:06:18,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:06:19,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:19,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:19,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:19,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:19,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:19,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:19,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:06:19,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:19,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:19,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:19,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:19,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:06:19,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:19,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:06:19,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:19,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:19,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:19,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:06:19,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:19,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:06:19,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:19,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:19,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:19,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:19,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:06:19,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:19,042 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-15 00:06:19,043 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [348913027] [2020-10-15 00:06:19,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:19,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-15 00:06:19,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410799053] [2020-10-15 00:06:19,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-15 00:06:19,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:19,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-15 00:06:19,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-10-15 00:06:19,045 INFO L87 Difference]: Start difference. First operand 112 states and 145 transitions. Second operand 15 states. [2020-10-15 00:06:20,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:20,126 INFO L93 Difference]: Finished difference Result 294 states and 385 transitions. [2020-10-15 00:06:20,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-10-15 00:06:20,127 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 54 [2020-10-15 00:06:20,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:20,129 INFO L225 Difference]: With dead ends: 294 [2020-10-15 00:06:20,129 INFO L226 Difference]: Without dead ends: 194 [2020-10-15 00:06:20,131 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 863 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=807, Invalid=2163, Unknown=0, NotChecked=0, Total=2970 [2020-10-15 00:06:20,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-10-15 00:06:20,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 153. [2020-10-15 00:06:20,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-10-15 00:06:20,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 200 transitions. [2020-10-15 00:06:20,145 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 200 transitions. Word has length 54 [2020-10-15 00:06:20,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:20,145 INFO L479 AbstractCegarLoop]: Abstraction has 153 states and 200 transitions. [2020-10-15 00:06:20,145 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-15 00:06:20,145 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 200 transitions. [2020-10-15 00:06:20,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-15 00:06:20,146 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:20,146 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 9, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:20,146 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-15 00:06:20,146 INFO L427 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:20,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:20,147 INFO L82 PathProgramCache]: Analyzing trace with hash 755731321, now seen corresponding path program 16 times [2020-10-15 00:06:20,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:20,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1726522677] [2020-10-15 00:06:20,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:20,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:20,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:20,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:20,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:20,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:20,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:20,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:20,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:20,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:20,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:20,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 00:06:20,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 00:06:20,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 551 [2020-10-15 00:06:20,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:20,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:20,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 00:06:20,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:06:20,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-15 00:06:20,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:20,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:20,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:20,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:20,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:20,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:20,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:20,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:20,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:20,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:20,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:20,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:20,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:06:20,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:20,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:06:20,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:20,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:20,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:20,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:06:20,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:20,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:20,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:20,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:20,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:20,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:20,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:06:20,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:20,869 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:06:20,869 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1726522677] [2020-10-15 00:06:20,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:20,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-15 00:06:20,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164925567] [2020-10-15 00:06:20,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-15 00:06:20,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:20,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-15 00:06:20,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=145, Unknown=0, NotChecked=0, Total=240 [2020-10-15 00:06:20,870 INFO L87 Difference]: Start difference. First operand 153 states and 200 transitions. Second operand 16 states. [2020-10-15 00:06:21,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:21,356 INFO L93 Difference]: Finished difference Result 325 states and 431 transitions. [2020-10-15 00:06:21,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 00:06:21,359 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 54 [2020-10-15 00:06:21,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:21,360 INFO L225 Difference]: With dead ends: 325 [2020-10-15 00:06:21,360 INFO L226 Difference]: Without dead ends: 184 [2020-10-15 00:06:21,361 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=279, Invalid=533, Unknown=0, NotChecked=0, Total=812 [2020-10-15 00:06:21,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-10-15 00:06:21,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 165. [2020-10-15 00:06:21,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-10-15 00:06:21,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 216 transitions. [2020-10-15 00:06:21,375 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 216 transitions. Word has length 54 [2020-10-15 00:06:21,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:21,375 INFO L479 AbstractCegarLoop]: Abstraction has 165 states and 216 transitions. [2020-10-15 00:06:21,375 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-15 00:06:21,375 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 216 transitions. [2020-10-15 00:06:21,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-15 00:06:21,376 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:21,376 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 9, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:21,376 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-15 00:06:21,376 INFO L427 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:21,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:21,377 INFO L82 PathProgramCache]: Analyzing trace with hash 394694697, now seen corresponding path program 17 times [2020-10-15 00:06:21,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:21,377 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [136751103] [2020-10-15 00:06:21,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:21,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:21,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:21,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:21,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:21,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:21,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:21,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:21,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:21,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:21,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:21,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:21,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:21,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:21,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:22,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:22,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-15 00:06:22,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 00:06:22,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1274 [2020-10-15 00:06:22,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:22,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:22,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 00:06:22,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:06:22,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 00:06:22,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:22,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:22,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:22,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:22,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:22,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:22,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:22,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:06:22,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:22,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:22,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:22,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:22,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:06:22,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:06:22,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:06:22,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:22,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:22,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:22,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:06:22,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:22,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:06:22,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:22,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:22,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:22,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:22,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:06:22,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:06:22,859 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 203 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-15 00:06:22,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [136751103] [2020-10-15 00:06:22,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:22,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-15 00:06:22,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659534193] [2020-10-15 00:06:22,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-15 00:06:22,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:22,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-15 00:06:22,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2020-10-15 00:06:22,861 INFO L87 Difference]: Start difference. First operand 165 states and 216 transitions. Second operand 16 states. [2020-10-15 00:06:24,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:24,221 INFO L93 Difference]: Finished difference Result 413 states and 543 transitions. [2020-10-15 00:06:24,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-10-15 00:06:24,226 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 57 [2020-10-15 00:06:24,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:24,228 INFO L225 Difference]: With dead ends: 413 [2020-10-15 00:06:24,228 INFO L226 Difference]: Without dead ends: 260 [2020-10-15 00:06:24,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1054 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=964, Invalid=2576, Unknown=0, NotChecked=0, Total=3540 [2020-10-15 00:06:24,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-10-15 00:06:24,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 162. [2020-10-15 00:06:24,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-10-15 00:06:24,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 212 transitions. [2020-10-15 00:06:24,257 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 212 transitions. Word has length 57 [2020-10-15 00:06:24,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:24,257 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 212 transitions. [2020-10-15 00:06:24,257 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-15 00:06:24,257 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 212 transitions. [2020-10-15 00:06:24,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-15 00:06:24,258 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:24,260 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:24,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-15 00:06:24,260 INFO L427 AbstractCegarLoop]: === Iteration 24 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:24,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:24,261 INFO L82 PathProgramCache]: Analyzing trace with hash -626373657, now seen corresponding path program 18 times [2020-10-15 00:06:24,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:24,261 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [537424333] [2020-10-15 00:06:24,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:24,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:24,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:24,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:24,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:24,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:24,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:24,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:24,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:24,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:25,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:25,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-15 00:06:25,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 00:06:25,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 886 [2020-10-15 00:06:25,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:25,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:25,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 00:06:25,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:06:25,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 00:06:25,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:06:25,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:25,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:25,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:25,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:25,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:25,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:25,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:25,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:25,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:25,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:25,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:25,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:06:25,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:06:25,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:06:25,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:25,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:25,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:25,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:06:25,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:25,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:25,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:25,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:25,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:25,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:25,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:06:25,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:06:25,333 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:06:25,334 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [537424333] [2020-10-15 00:06:25,334 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:25,334 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-15 00:06:25,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720499120] [2020-10-15 00:06:25,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-15 00:06:25,336 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:25,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-15 00:06:25,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=163, Unknown=0, NotChecked=0, Total=272 [2020-10-15 00:06:25,337 INFO L87 Difference]: Start difference. First operand 162 states and 212 transitions. Second operand 17 states. [2020-10-15 00:06:25,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:25,895 INFO L93 Difference]: Finished difference Result 343 states and 455 transitions. [2020-10-15 00:06:25,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 00:06:25,899 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 57 [2020-10-15 00:06:25,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:25,901 INFO L225 Difference]: With dead ends: 343 [2020-10-15 00:06:25,901 INFO L226 Difference]: Without dead ends: 193 [2020-10-15 00:06:25,902 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=321, Invalid=609, Unknown=0, NotChecked=0, Total=930 [2020-10-15 00:06:25,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-10-15 00:06:25,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 174. [2020-10-15 00:06:25,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-10-15 00:06:25,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 228 transitions. [2020-10-15 00:06:25,923 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 228 transitions. Word has length 57 [2020-10-15 00:06:25,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:25,923 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 228 transitions. [2020-10-15 00:06:25,924 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-15 00:06:25,924 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 228 transitions. [2020-10-15 00:06:25,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-15 00:06:25,931 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:25,931 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 10, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:25,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-15 00:06:25,933 INFO L427 AbstractCegarLoop]: === Iteration 25 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:25,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:25,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1956761851, now seen corresponding path program 19 times [2020-10-15 00:06:25,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:25,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1776483522] [2020-10-15 00:06:25,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:25,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:25,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:25,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:25,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:26,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:26,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:26,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:26,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:26,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:26,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:26,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:26,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:26,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:26,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:27,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:27,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-15 00:06:27,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 00:06:27,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1118 [2020-10-15 00:06:27,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:27,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:27,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 00:06:27,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:06:27,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-15 00:06:27,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:27,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:27,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:27,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:27,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:27,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:27,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:27,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:27,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:27,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:27,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:27,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:27,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:06:27,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:27,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:06:27,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:27,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:27,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:27,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:06:27,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:27,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:27,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:27,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:27,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:27,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:27,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:06:27,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:27,240 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 0 proven. 240 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-15 00:06:27,241 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1776483522] [2020-10-15 00:06:27,241 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:27,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-15 00:06:27,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600171302] [2020-10-15 00:06:27,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-15 00:06:27,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:27,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-15 00:06:27,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2020-10-15 00:06:27,242 INFO L87 Difference]: Start difference. First operand 174 states and 228 transitions. Second operand 17 states. [2020-10-15 00:06:28,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:28,087 INFO L93 Difference]: Finished difference Result 417 states and 551 transitions. [2020-10-15 00:06:28,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-15 00:06:28,090 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 60 [2020-10-15 00:06:28,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:28,092 INFO L225 Difference]: With dead ends: 417 [2020-10-15 00:06:28,092 INFO L226 Difference]: Without dead ends: 255 [2020-10-15 00:06:28,098 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=503, Invalid=1303, Unknown=0, NotChecked=0, Total=1806 [2020-10-15 00:06:28,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-10-15 00:06:28,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 121. [2020-10-15 00:06:28,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-10-15 00:06:28,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 157 transitions. [2020-10-15 00:06:28,113 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 157 transitions. Word has length 60 [2020-10-15 00:06:28,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:28,113 INFO L479 AbstractCegarLoop]: Abstraction has 121 states and 157 transitions. [2020-10-15 00:06:28,113 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-15 00:06:28,114 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 157 transitions. [2020-10-15 00:06:28,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-15 00:06:28,117 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:28,118 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 11, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:28,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-15 00:06:28,118 INFO L427 AbstractCegarLoop]: === Iteration 26 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:28,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:28,118 INFO L82 PathProgramCache]: Analyzing trace with hash 935693497, now seen corresponding path program 20 times [2020-10-15 00:06:28,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:28,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1014257231] [2020-10-15 00:06:28,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:28,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:28,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:28,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:28,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:28,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:28,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:28,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:28,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:28,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:29,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:29,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-15 00:06:29,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 00:06:29,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1163 [2020-10-15 00:06:29,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:29,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:29,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-15 00:06:29,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:06:29,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-15 00:06:29,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:29,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:29,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:29,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:29,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:29,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:29,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:29,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:06:29,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:29,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:29,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:29,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:29,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:06:29,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:29,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:06:29,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:29,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:29,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:29,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:06:29,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:29,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:06:29,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:29,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:29,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:29,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:29,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:06:29,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:06:29,511 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 00:06:29,511 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1014257231] [2020-10-15 00:06:29,511 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:29,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-15 00:06:29,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271081668] [2020-10-15 00:06:29,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-15 00:06:29,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:29,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-15 00:06:29,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2020-10-15 00:06:29,513 INFO L87 Difference]: Start difference. First operand 121 states and 157 transitions. Second operand 18 states. [2020-10-15 00:06:30,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:30,457 INFO L93 Difference]: Finished difference Result 294 states and 389 transitions. [2020-10-15 00:06:30,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-15 00:06:30,457 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 60 [2020-10-15 00:06:30,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:30,459 INFO L225 Difference]: With dead ends: 294 [2020-10-15 00:06:30,459 INFO L226 Difference]: Without dead ends: 185 [2020-10-15 00:06:30,460 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=582, Invalid=1488, Unknown=0, NotChecked=0, Total=2070 [2020-10-15 00:06:30,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-10-15 00:06:30,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 119. [2020-10-15 00:06:30,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-10-15 00:06:30,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 155 transitions. [2020-10-15 00:06:30,480 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 155 transitions. Word has length 60 [2020-10-15 00:06:30,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:30,481 INFO L479 AbstractCegarLoop]: Abstraction has 119 states and 155 transitions. [2020-10-15 00:06:30,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-15 00:06:30,481 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 155 transitions. [2020-10-15 00:06:30,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-15 00:06:30,482 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:30,482 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:30,482 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-15 00:06:30,482 INFO L427 AbstractCegarLoop]: === Iteration 27 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:30,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:30,483 INFO L82 PathProgramCache]: Analyzing trace with hash 348887483, now seen corresponding path program 21 times [2020-10-15 00:06:30,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:30,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1111325764] [2020-10-15 00:06:30,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:30,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:30,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:30,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:30,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:30,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:30,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:30,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-15 00:06:30,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 00:06:30,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 386 [2020-10-15 00:06:30,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:30,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:30,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-15 00:06:30,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:06:30,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-15 00:06:30,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:31,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:31,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:31,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:31,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:31,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:31,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:31,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:31,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:31,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:31,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:31,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:31,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:06:31,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:31,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:06:31,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:31,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:31,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:31,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:06:31,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:31,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:31,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:31,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:31,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:31,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:31,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:06:31,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:31,063 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 0 proven. 247 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:06:31,064 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1111325764] [2020-10-15 00:06:31,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:31,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-15 00:06:31,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465410147] [2020-10-15 00:06:31,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-15 00:06:31,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:31,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-15 00:06:31,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=182, Unknown=0, NotChecked=0, Total=306 [2020-10-15 00:06:31,065 INFO L87 Difference]: Start difference. First operand 119 states and 155 transitions. Second operand 18 states. [2020-10-15 00:06:31,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:31,566 INFO L93 Difference]: Finished difference Result 246 states and 326 transitions. [2020-10-15 00:06:31,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 00:06:31,569 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 60 [2020-10-15 00:06:31,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:31,570 INFO L225 Difference]: With dead ends: 246 [2020-10-15 00:06:31,570 INFO L226 Difference]: Without dead ends: 139 [2020-10-15 00:06:31,571 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=366, Invalid=690, Unknown=0, NotChecked=0, Total=1056 [2020-10-15 00:06:31,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-10-15 00:06:31,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 127. [2020-10-15 00:06:31,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-15 00:06:31,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 165 transitions. [2020-10-15 00:06:31,584 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 165 transitions. Word has length 60 [2020-10-15 00:06:31,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:31,585 INFO L479 AbstractCegarLoop]: Abstraction has 127 states and 165 transitions. [2020-10-15 00:06:31,585 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-15 00:06:31,585 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 165 transitions. [2020-10-15 00:06:31,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-15 00:06:31,586 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:31,587 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 12, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:31,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-15 00:06:31,587 INFO L427 AbstractCegarLoop]: === Iteration 28 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:31,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:31,587 INFO L82 PathProgramCache]: Analyzing trace with hash 507626151, now seen corresponding path program 22 times [2020-10-15 00:06:31,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:31,588 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [583147971] [2020-10-15 00:06:31,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:31,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:31,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:31,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:31,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:31,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:31,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:31,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:31,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:31,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:32,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:32,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 00:06:32,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 00:06:32,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 554 [2020-10-15 00:06:32,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:32,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:32,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 00:06:32,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:06:32,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-15 00:06:32,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:32,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:32,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:32,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:32,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:32,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:32,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:32,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:32,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:32,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:32,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:32,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:32,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:06:32,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:32,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:06:32,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:32,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:32,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:32,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:06:32,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:32,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:32,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:32,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:32,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:32,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:32,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:06:32,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:32,372 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 0 proven. 287 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:06:32,372 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [583147971] [2020-10-15 00:06:32,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:32,373 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-15 00:06:32,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313684007] [2020-10-15 00:06:32,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-15 00:06:32,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:32,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-15 00:06:32,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=202, Unknown=0, NotChecked=0, Total=342 [2020-10-15 00:06:32,374 INFO L87 Difference]: Start difference. First operand 127 states and 165 transitions. Second operand 19 states. [2020-10-15 00:06:33,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:33,002 INFO L93 Difference]: Finished difference Result 263 states and 348 transitions. [2020-10-15 00:06:33,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-15 00:06:33,004 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 63 [2020-10-15 00:06:33,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:33,005 INFO L225 Difference]: With dead ends: 263 [2020-10-15 00:06:33,006 INFO L226 Difference]: Without dead ends: 148 [2020-10-15 00:06:33,007 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=414, Invalid=776, Unknown=0, NotChecked=0, Total=1190 [2020-10-15 00:06:33,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-10-15 00:06:33,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 136. [2020-10-15 00:06:33,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-15 00:06:33,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 177 transitions. [2020-10-15 00:06:33,022 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 177 transitions. Word has length 63 [2020-10-15 00:06:33,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:33,022 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 177 transitions. [2020-10-15 00:06:33,022 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-15 00:06:33,022 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 177 transitions. [2020-10-15 00:06:33,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-15 00:06:33,023 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:33,023 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 12, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:33,023 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-15 00:06:33,023 INFO L427 AbstractCegarLoop]: === Iteration 29 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:33,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:33,024 INFO L82 PathProgramCache]: Analyzing trace with hash 732291643, now seen corresponding path program 23 times [2020-10-15 00:06:33,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:33,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [612504273] [2020-10-15 00:06:33,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:33,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:33,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:33,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:33,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:33,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:33,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:33,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:33,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:33,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:33,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:33,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:33,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:33,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:33,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:34,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:34,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-15 00:06:34,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 00:06:34,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1605 [2020-10-15 00:06:34,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:34,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:34,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 00:06:34,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:06:34,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-15 00:06:34,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:34,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:34,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:34,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:34,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:34,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:34,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:34,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:34,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:34,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:34,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:34,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:34,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:06:34,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:34,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:06:34,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:34,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:34,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:34,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:06:34,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:34,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:34,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:34,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:34,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:34,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:34,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:06:34,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:34,862 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 323 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-15 00:06:34,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [612504273] [2020-10-15 00:06:34,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:34,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-15 00:06:34,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430650606] [2020-10-15 00:06:34,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-15 00:06:34,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:34,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-15 00:06:34,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2020-10-15 00:06:34,864 INFO L87 Difference]: Start difference. First operand 136 states and 177 transitions. Second operand 19 states. [2020-10-15 00:06:36,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:36,321 INFO L93 Difference]: Finished difference Result 358 states and 469 transitions. [2020-10-15 00:06:36,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2020-10-15 00:06:36,326 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 66 [2020-10-15 00:06:36,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:36,327 INFO L225 Difference]: With dead ends: 358 [2020-10-15 00:06:36,328 INFO L226 Difference]: Without dead ends: 234 [2020-10-15 00:06:36,330 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1741 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1519, Invalid=4031, Unknown=0, NotChecked=0, Total=5550 [2020-10-15 00:06:36,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-10-15 00:06:36,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 189. [2020-10-15 00:06:36,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-10-15 00:06:36,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 248 transitions. [2020-10-15 00:06:36,348 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 248 transitions. Word has length 66 [2020-10-15 00:06:36,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:36,348 INFO L479 AbstractCegarLoop]: Abstraction has 189 states and 248 transitions. [2020-10-15 00:06:36,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-15 00:06:36,348 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 248 transitions. [2020-10-15 00:06:36,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-15 00:06:36,349 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:36,349 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 13, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:36,349 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-15 00:06:36,350 INFO L427 AbstractCegarLoop]: === Iteration 30 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:36,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:36,350 INFO L82 PathProgramCache]: Analyzing trace with hash -288776711, now seen corresponding path program 24 times [2020-10-15 00:06:36,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:36,350 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2133858877] [2020-10-15 00:06:36,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:36,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:36,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:36,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:36,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:36,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:36,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:36,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:36,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:36,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:37,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:37,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-15 00:06:37,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 00:06:37,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 644 [2020-10-15 00:06:37,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:37,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:37,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 00:06:37,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:06:37,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-15 00:06:37,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:37,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:37,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:37,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:37,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:37,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:37,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:37,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:37,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:37,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:37,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:37,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:37,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:06:37,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:37,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:06:37,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:37,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:37,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:37,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:06:37,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:37,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:37,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:37,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:37,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:37,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:37,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:06:37,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:37,230 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 328 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 00:06:37,230 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2133858877] [2020-10-15 00:06:37,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:37,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-15 00:06:37,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419284002] [2020-10-15 00:06:37,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-15 00:06:37,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:37,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-15 00:06:37,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=252, Unknown=0, NotChecked=0, Total=380 [2020-10-15 00:06:37,232 INFO L87 Difference]: Start difference. First operand 189 states and 248 transitions. Second operand 20 states. [2020-10-15 00:06:38,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:38,340 INFO L93 Difference]: Finished difference Result 440 states and 584 transitions. [2020-10-15 00:06:38,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-15 00:06:38,341 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 66 [2020-10-15 00:06:38,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:38,343 INFO L225 Difference]: With dead ends: 440 [2020-10-15 00:06:38,343 INFO L226 Difference]: Without dead ends: 263 [2020-10-15 00:06:38,345 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 531 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=758, Invalid=1894, Unknown=0, NotChecked=0, Total=2652 [2020-10-15 00:06:38,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2020-10-15 00:06:38,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 131. [2020-10-15 00:06:38,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-10-15 00:06:38,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 171 transitions. [2020-10-15 00:06:38,361 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 171 transitions. Word has length 66 [2020-10-15 00:06:38,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:38,362 INFO L479 AbstractCegarLoop]: Abstraction has 131 states and 171 transitions. [2020-10-15 00:06:38,362 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-15 00:06:38,362 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 171 transitions. [2020-10-15 00:06:38,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-15 00:06:38,363 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:38,363 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:38,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-15 00:06:38,363 INFO L427 AbstractCegarLoop]: === Iteration 31 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:38,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:38,364 INFO L82 PathProgramCache]: Analyzing trace with hash -875582725, now seen corresponding path program 25 times [2020-10-15 00:06:38,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:38,364 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [533254024] [2020-10-15 00:06:38,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:38,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:38,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:38,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:38,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:38,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:38,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:38,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:38,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-15 00:06:38,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 00:06:38,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 540 [2020-10-15 00:06:38,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:38,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:38,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 00:06:38,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:06:38,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 00:06:38,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:39,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:39,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:39,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:39,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:39,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:39,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:39,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:39,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:39,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:39,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:39,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:39,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:06:39,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:39,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:06:39,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:39,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:39,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:39,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:06:39,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:39,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:39,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:39,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:39,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:39,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:39,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:06:39,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:39,154 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:06:39,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [533254024] [2020-10-15 00:06:39,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:39,155 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-15 00:06:39,155 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254065764] [2020-10-15 00:06:39,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-15 00:06:39,156 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:39,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-15 00:06:39,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=223, Unknown=0, NotChecked=0, Total=380 [2020-10-15 00:06:39,156 INFO L87 Difference]: Start difference. First operand 131 states and 171 transitions. Second operand 20 states. [2020-10-15 00:06:39,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:39,640 INFO L93 Difference]: Finished difference Result 270 states and 358 transitions. [2020-10-15 00:06:39,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-15 00:06:39,641 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 66 [2020-10-15 00:06:39,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:39,642 INFO L225 Difference]: With dead ends: 270 [2020-10-15 00:06:39,642 INFO L226 Difference]: Without dead ends: 151 [2020-10-15 00:06:39,643 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=465, Invalid=867, Unknown=0, NotChecked=0, Total=1332 [2020-10-15 00:06:39,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-10-15 00:06:39,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 139. [2020-10-15 00:06:39,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-10-15 00:06:39,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 181 transitions. [2020-10-15 00:06:39,663 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 181 transitions. Word has length 66 [2020-10-15 00:06:39,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:39,664 INFO L479 AbstractCegarLoop]: Abstraction has 139 states and 181 transitions. [2020-10-15 00:06:39,664 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-15 00:06:39,664 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 181 transitions. [2020-10-15 00:06:39,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-15 00:06:39,665 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:39,665 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 14, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:39,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-15 00:06:39,666 INFO L427 AbstractCegarLoop]: === Iteration 32 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:39,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:39,666 INFO L82 PathProgramCache]: Analyzing trace with hash -527095449, now seen corresponding path program 26 times [2020-10-15 00:06:39,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:39,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1821268908] [2020-10-15 00:06:39,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:39,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:39,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:39,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:39,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:39,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:39,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:39,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:40,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:40,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:40,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:40,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-15 00:06:40,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 00:06:40,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 978 [2020-10-15 00:06:40,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:40,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:40,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-15 00:06:40,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:06:40,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-15 00:06:40,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:40,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:40,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:40,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:40,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:40,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:40,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:40,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:40,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:40,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:40,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:40,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:40,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:06:40,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:40,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:06:40,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:40,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:40,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:40,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:06:40,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:40,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:40,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:40,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:40,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:40,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:40,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:06:40,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:40,911 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 0 proven. 374 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 00:06:40,912 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1821268908] [2020-10-15 00:06:40,912 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:40,912 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-15 00:06:40,912 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411843374] [2020-10-15 00:06:40,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-15 00:06:40,913 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:40,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-15 00:06:40,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=276, Unknown=0, NotChecked=0, Total=420 [2020-10-15 00:06:40,913 INFO L87 Difference]: Start difference. First operand 139 states and 181 transitions. Second operand 21 states. [2020-10-15 00:06:42,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:42,744 INFO L93 Difference]: Finished difference Result 360 states and 473 transitions. [2020-10-15 00:06:42,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2020-10-15 00:06:42,747 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 69 [2020-10-15 00:06:42,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:42,748 INFO L225 Difference]: With dead ends: 360 [2020-10-15 00:06:42,748 INFO L226 Difference]: Without dead ends: 233 [2020-10-15 00:06:42,752 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2294 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1959, Invalid=5181, Unknown=0, NotChecked=0, Total=7140 [2020-10-15 00:06:42,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2020-10-15 00:06:42,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 196. [2020-10-15 00:06:42,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2020-10-15 00:06:42,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 258 transitions. [2020-10-15 00:06:42,773 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 258 transitions. Word has length 69 [2020-10-15 00:06:42,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:42,774 INFO L479 AbstractCegarLoop]: Abstraction has 196 states and 258 transitions. [2020-10-15 00:06:42,774 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-15 00:06:42,774 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 258 transitions. [2020-10-15 00:06:42,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-15 00:06:42,775 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:42,775 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:42,775 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-15 00:06:42,776 INFO L427 AbstractCegarLoop]: === Iteration 33 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:42,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:42,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1113901463, now seen corresponding path program 27 times [2020-10-15 00:06:42,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:42,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1679165419] [2020-10-15 00:06:42,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:42,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:42,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:42,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:42,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:42,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:43,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:43,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:43,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-15 00:06:43,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 00:06:43,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 585 [2020-10-15 00:06:43,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:43,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:43,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-15 00:06:43,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:06:43,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-15 00:06:43,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:43,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:43,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:43,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:43,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:43,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:43,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:43,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:43,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:43,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:43,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:43,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:43,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:06:43,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:06:43,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:06:43,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:43,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:43,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:43,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:06:43,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:43,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:43,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:43,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:43,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:43,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:43,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:06:43,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:43,652 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 0 proven. 376 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:06:43,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1679165419] [2020-10-15 00:06:43,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:43,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-15 00:06:43,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908071398] [2020-10-15 00:06:43,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-15 00:06:43,653 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:43,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-15 00:06:43,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=245, Unknown=0, NotChecked=0, Total=420 [2020-10-15 00:06:43,656 INFO L87 Difference]: Start difference. First operand 196 states and 258 transitions. Second operand 21 states. [2020-10-15 00:06:44,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:44,286 INFO L93 Difference]: Finished difference Result 410 states and 545 transitions. [2020-10-15 00:06:44,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-15 00:06:44,291 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 69 [2020-10-15 00:06:44,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:44,292 INFO L225 Difference]: With dead ends: 410 [2020-10-15 00:06:44,292 INFO L226 Difference]: Without dead ends: 226 [2020-10-15 00:06:44,294 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=519, Invalid=963, Unknown=0, NotChecked=0, Total=1482 [2020-10-15 00:06:44,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-15 00:06:44,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 207. [2020-10-15 00:06:44,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2020-10-15 00:06:44,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 272 transitions. [2020-10-15 00:06:44,319 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 272 transitions. Word has length 69 [2020-10-15 00:06:44,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:44,320 INFO L479 AbstractCegarLoop]: Abstraction has 207 states and 272 transitions. [2020-10-15 00:06:44,320 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-15 00:06:44,320 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 272 transitions. [2020-10-15 00:06:44,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-15 00:06:44,321 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:44,321 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 15, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:44,321 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-15 00:06:44,321 INFO L427 AbstractCegarLoop]: === Iteration 34 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:44,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:44,321 INFO L82 PathProgramCache]: Analyzing trace with hash -699678919, now seen corresponding path program 28 times [2020-10-15 00:06:44,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:44,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1052906815] [2020-10-15 00:06:44,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:44,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:44,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:44,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:44,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:44,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:44,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:44,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:44,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:44,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:45,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:45,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-15 00:06:45,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 00:06:45,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 737 [2020-10-15 00:06:45,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:45,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:45,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-15 00:06:45,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:06:45,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-15 00:06:45,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:45,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:45,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:45,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:45,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:45,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:45,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:45,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:45,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:45,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:45,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:45,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:45,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:06:45,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:45,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:06:45,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:45,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:45,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:45,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:06:45,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:45,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:06:45,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:45,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:45,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:45,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:45,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:06:45,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:45,368 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 0 proven. 423 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 00:06:45,369 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1052906815] [2020-10-15 00:06:45,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:45,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-15 00:06:45,369 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795664946] [2020-10-15 00:06:45,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-15 00:06:45,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:45,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-15 00:06:45,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=301, Unknown=0, NotChecked=0, Total=462 [2020-10-15 00:06:45,371 INFO L87 Difference]: Start difference. First operand 207 states and 272 transitions. Second operand 22 states. [2020-10-15 00:06:47,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:47,618 INFO L93 Difference]: Finished difference Result 505 states and 666 transitions. [2020-10-15 00:06:47,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2020-10-15 00:06:47,618 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 72 [2020-10-15 00:06:47,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:47,620 INFO L225 Difference]: With dead ends: 505 [2020-10-15 00:06:47,621 INFO L226 Difference]: Without dead ends: 310 [2020-10-15 00:06:47,624 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2599 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2200, Invalid=5810, Unknown=0, NotChecked=0, Total=8010 [2020-10-15 00:06:47,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2020-10-15 00:06:47,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 205. [2020-10-15 00:06:47,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-15 00:06:47,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 270 transitions. [2020-10-15 00:06:47,642 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 270 transitions. Word has length 72 [2020-10-15 00:06:47,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:47,642 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 270 transitions. [2020-10-15 00:06:47,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-15 00:06:47,642 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 270 transitions. [2020-10-15 00:06:47,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-15 00:06:47,643 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:47,643 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:47,643 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-15 00:06:47,643 INFO L427 AbstractCegarLoop]: === Iteration 35 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:47,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:47,643 INFO L82 PathProgramCache]: Analyzing trace with hash -1286484933, now seen corresponding path program 29 times [2020-10-15 00:06:47,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:47,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [509244556] [2020-10-15 00:06:47,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:47,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:47,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:47,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:47,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:47,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:47,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:48,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:48,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-15 00:06:48,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 00:06:48,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 511 [2020-10-15 00:06:48,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:48,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:48,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-15 00:06:48,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:06:48,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-15 00:06:48,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:48,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:48,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:48,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:48,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:48,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:48,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:48,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:48,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:48,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:48,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:48,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:48,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:06:48,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:48,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:06:48,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:48,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:48,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:48,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:06:48,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:48,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:48,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:48,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:48,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:48,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:48,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:06:48,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:48,459 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 0 proven. 425 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:06:48,459 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [509244556] [2020-10-15 00:06:48,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:48,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-15 00:06:48,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269181622] [2020-10-15 00:06:48,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-15 00:06:48,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:48,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-15 00:06:48,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=268, Unknown=0, NotChecked=0, Total=462 [2020-10-15 00:06:48,461 INFO L87 Difference]: Start difference. First operand 205 states and 270 transitions. Second operand 22 states. [2020-10-15 00:06:49,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:49,234 INFO L93 Difference]: Finished difference Result 428 states and 569 transitions. [2020-10-15 00:06:49,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-15 00:06:49,234 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 72 [2020-10-15 00:06:49,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:49,236 INFO L225 Difference]: With dead ends: 428 [2020-10-15 00:06:49,236 INFO L226 Difference]: Without dead ends: 235 [2020-10-15 00:06:49,237 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=576, Invalid=1064, Unknown=0, NotChecked=0, Total=1640 [2020-10-15 00:06:49,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2020-10-15 00:06:49,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 216. [2020-10-15 00:06:49,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2020-10-15 00:06:49,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 284 transitions. [2020-10-15 00:06:49,259 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 284 transitions. Word has length 72 [2020-10-15 00:06:49,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:49,259 INFO L479 AbstractCegarLoop]: Abstraction has 216 states and 284 transitions. [2020-10-15 00:06:49,259 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-15 00:06:49,260 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 284 transitions. [2020-10-15 00:06:49,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-15 00:06:49,260 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:49,261 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 16, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:49,261 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-15 00:06:49,261 INFO L427 AbstractCegarLoop]: === Iteration 36 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:49,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:49,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1057980377, now seen corresponding path program 30 times [2020-10-15 00:06:49,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:49,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1006683151] [2020-10-15 00:06:49,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:49,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:49,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:49,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:49,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:49,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:49,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:49,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:49,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:49,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:50,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:50,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 00:06:50,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 00:06:50,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 789 [2020-10-15 00:06:50,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:50,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:50,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-15 00:06:50,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:06:50,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-15 00:06:50,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:50,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:50,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:50,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:50,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:50,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:50,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:50,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:50,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:50,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:50,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:50,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:50,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:06:50,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:50,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:06:50,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:50,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:50,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:50,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:06:50,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:50,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:50,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:50,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:50,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:50,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:50,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:06:50,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:50,363 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 0 proven. 475 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 00:06:50,364 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1006683151] [2020-10-15 00:06:50,364 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:50,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-15 00:06:50,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798434864] [2020-10-15 00:06:50,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-15 00:06:50,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:50,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-15 00:06:50,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=327, Unknown=0, NotChecked=0, Total=506 [2020-10-15 00:06:50,365 INFO L87 Difference]: Start difference. First operand 216 states and 284 transitions. Second operand 23 states. [2020-10-15 00:06:51,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:51,784 INFO L93 Difference]: Finished difference Result 503 states and 668 transitions. [2020-10-15 00:06:51,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-10-15 00:06:51,784 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 75 [2020-10-15 00:06:51,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:51,786 INFO L225 Difference]: With dead ends: 503 [2020-10-15 00:06:51,786 INFO L226 Difference]: Without dead ends: 299 [2020-10-15 00:06:51,790 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 747 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1067, Invalid=2593, Unknown=0, NotChecked=0, Total=3660 [2020-10-15 00:06:51,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2020-10-15 00:06:51,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 149. [2020-10-15 00:06:51,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-10-15 00:06:51,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 195 transitions. [2020-10-15 00:06:51,810 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 195 transitions. Word has length 75 [2020-10-15 00:06:51,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:51,810 INFO L479 AbstractCegarLoop]: Abstraction has 149 states and 195 transitions. [2020-10-15 00:06:51,810 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-15 00:06:51,811 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 195 transitions. [2020-10-15 00:06:51,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-15 00:06:51,811 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:51,812 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:51,812 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-15 00:06:51,812 INFO L427 AbstractCegarLoop]: === Iteration 37 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:51,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:51,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1644786391, now seen corresponding path program 31 times [2020-10-15 00:06:51,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:51,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1205735703] [2020-10-15 00:06:51,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:51,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:51,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:51,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:51,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:51,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:52,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:52,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:52,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 00:06:52,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 00:06:52,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 826 [2020-10-15 00:06:52,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:52,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:52,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-15 00:06:52,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:06:52,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 00:06:52,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:52,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:52,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:52,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:52,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:52,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:52,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:52,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:52,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:52,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:52,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:52,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:06:52,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:52,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:06:52,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:52,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:52,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:52,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:06:52,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:52,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:52,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:52,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:52,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:52,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:52,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:06:52,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:52,958 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 0 proven. 477 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:06:52,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1205735703] [2020-10-15 00:06:52,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:52,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-15 00:06:52,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960688732] [2020-10-15 00:06:52,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-15 00:06:52,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:52,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-15 00:06:52,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=292, Unknown=0, NotChecked=0, Total=506 [2020-10-15 00:06:52,960 INFO L87 Difference]: Start difference. First operand 149 states and 195 transitions. Second operand 23 states. [2020-10-15 00:06:53,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:53,691 INFO L93 Difference]: Finished difference Result 306 states and 406 transitions. [2020-10-15 00:06:53,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-15 00:06:53,692 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 75 [2020-10-15 00:06:53,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:53,694 INFO L225 Difference]: With dead ends: 306 [2020-10-15 00:06:53,694 INFO L226 Difference]: Without dead ends: 169 [2020-10-15 00:06:53,695 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=636, Invalid=1170, Unknown=0, NotChecked=0, Total=1806 [2020-10-15 00:06:53,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-10-15 00:06:53,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 157. [2020-10-15 00:06:53,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-10-15 00:06:53,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 205 transitions. [2020-10-15 00:06:53,715 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 205 transitions. Word has length 75 [2020-10-15 00:06:53,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:53,716 INFO L479 AbstractCegarLoop]: Abstraction has 157 states and 205 transitions. [2020-10-15 00:06:53,716 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-15 00:06:53,716 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 205 transitions. [2020-10-15 00:06:53,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-15 00:06:53,717 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:53,717 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 17, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:53,717 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-15 00:06:53,717 INFO L427 AbstractCegarLoop]: === Iteration 38 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:53,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:53,718 INFO L82 PathProgramCache]: Analyzing trace with hash 2071982201, now seen corresponding path program 32 times [2020-10-15 00:06:53,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:53,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1809447413] [2020-10-15 00:06:53,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:53,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:53,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:53,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:53,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:53,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:53,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:53,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:53,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:54,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:54,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:54,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-15 00:06:54,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 00:06:54,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 869 [2020-10-15 00:06:54,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:54,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:54,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 00:06:54,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:06:54,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-15 00:06:54,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:06:54,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:54,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:54,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:54,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:54,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:54,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:54,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:06:54,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:54,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:54,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:54,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:54,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:06:54,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:54,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:06:54,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:54,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:54,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:54,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:06:54,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:54,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:54,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:54,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:54,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:54,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:54,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:06:54,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:54,953 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 532 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:06:54,954 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1809447413] [2020-10-15 00:06:54,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:54,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-15 00:06:54,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992705115] [2020-10-15 00:06:54,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-15 00:06:54,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:54,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-15 00:06:54,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=235, Invalid=317, Unknown=0, NotChecked=0, Total=552 [2020-10-15 00:06:54,955 INFO L87 Difference]: Start difference. First operand 157 states and 205 transitions. Second operand 24 states. [2020-10-15 00:06:55,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:55,871 INFO L93 Difference]: Finished difference Result 316 states and 418 transitions. [2020-10-15 00:06:55,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-15 00:06:55,873 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 78 [2020-10-15 00:06:55,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:55,875 INFO L225 Difference]: With dead ends: 316 [2020-10-15 00:06:55,875 INFO L226 Difference]: Without dead ends: 171 [2020-10-15 00:06:55,876 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=699, Invalid=1281, Unknown=0, NotChecked=0, Total=1980 [2020-10-15 00:06:55,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-10-15 00:06:55,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 166. [2020-10-15 00:06:55,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-10-15 00:06:55,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 217 transitions. [2020-10-15 00:06:55,892 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 217 transitions. Word has length 78 [2020-10-15 00:06:55,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:55,893 INFO L479 AbstractCegarLoop]: Abstraction has 166 states and 217 transitions. [2020-10-15 00:06:55,893 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-15 00:06:55,893 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 217 transitions. [2020-10-15 00:06:55,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-15 00:06:55,894 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:55,894 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 17, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:55,894 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-15 00:06:55,895 INFO L427 AbstractCegarLoop]: === Iteration 39 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:55,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:55,895 INFO L82 PathProgramCache]: Analyzing trace with hash -226751703, now seen corresponding path program 33 times [2020-10-15 00:06:55,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:55,895 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1121937805] [2020-10-15 00:06:55,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:55,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:55,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:55,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:55,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:55,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:55,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:56,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:56,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:56,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:56,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:56,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:56,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:56,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:56,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:56,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-15 00:06:56,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-15 00:06:56,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 989 [2020-10-15 00:06:56,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:56,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:56,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 00:06:56,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:06:56,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-15 00:06:56,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:57,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:57,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:57,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:57,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:57,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:57,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:06:57,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:57,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:57,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:57,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:57,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:06:57,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:57,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:06:57,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:57,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:57,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:57,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:06:57,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:57,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:57,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:57,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:57,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:57,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:57,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:06:57,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:57,222 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 0 proven. 583 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-15 00:06:57,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1121937805] [2020-10-15 00:06:57,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:57,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-15 00:06:57,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572264199] [2020-10-15 00:06:57,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-15 00:06:57,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:57,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-15 00:06:57,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=354, Unknown=0, NotChecked=0, Total=552 [2020-10-15 00:06:57,224 INFO L87 Difference]: Start difference. First operand 166 states and 217 transitions. Second operand 24 states. [2020-10-15 00:06:58,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:06:58,687 INFO L93 Difference]: Finished difference Result 414 states and 547 transitions. [2020-10-15 00:06:58,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-10-15 00:06:58,688 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 81 [2020-10-15 00:06:58,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:06:58,689 INFO L225 Difference]: With dead ends: 414 [2020-10-15 00:06:58,689 INFO L226 Difference]: Without dead ends: 260 [2020-10-15 00:06:58,690 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 827 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1182, Invalid=2850, Unknown=0, NotChecked=0, Total=4032 [2020-10-15 00:06:58,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-10-15 00:06:58,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 163. [2020-10-15 00:06:58,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-10-15 00:06:58,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 213 transitions. [2020-10-15 00:06:58,712 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 213 transitions. Word has length 81 [2020-10-15 00:06:58,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:06:58,713 INFO L479 AbstractCegarLoop]: Abstraction has 163 states and 213 transitions. [2020-10-15 00:06:58,713 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-15 00:06:58,713 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 213 transitions. [2020-10-15 00:06:58,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-15 00:06:58,714 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:06:58,714 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 18, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:06:58,714 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-15 00:06:58,714 INFO L427 AbstractCegarLoop]: === Iteration 40 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:06:58,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:06:58,715 INFO L82 PathProgramCache]: Analyzing trace with hash -1247820057, now seen corresponding path program 34 times [2020-10-15 00:06:58,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:06:58,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [14978625] [2020-10-15 00:06:58,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:06:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:58,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:58,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:58,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:58,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:58,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:58,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:58,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:59,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:59,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-15 00:06:59,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 00:06:59,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 546 [2020-10-15 00:06:59,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:59,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:59,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-15 00:06:59,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:06:59,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-15 00:06:59,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:59,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:06:59,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:59,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:59,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:59,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:06:59,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:59,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:59,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:59,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:59,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:59,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:59,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:06:59,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:59,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:06:59,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:06:59,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:06:59,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:06:59,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:06:59,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:06:59,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:06:59,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:06:59,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:06:59,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:06:59,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:06:59,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:06:59,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:06:59,633 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 0 proven. 588 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 00:06:59,634 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [14978625] [2020-10-15 00:06:59,634 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:06:59,634 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-15 00:06:59,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366945741] [2020-10-15 00:06:59,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-15 00:06:59,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:06:59,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-15 00:06:59,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=382, Unknown=0, NotChecked=0, Total=600 [2020-10-15 00:06:59,635 INFO L87 Difference]: Start difference. First operand 163 states and 213 transitions. Second operand 25 states. [2020-10-15 00:07:01,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:07:01,064 INFO L93 Difference]: Finished difference Result 399 states and 529 transitions. [2020-10-15 00:07:01,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-10-15 00:07:01,065 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 81 [2020-10-15 00:07:01,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:07:01,066 INFO L225 Difference]: With dead ends: 399 [2020-10-15 00:07:01,066 INFO L226 Difference]: Without dead ends: 248 [2020-10-15 00:07:01,067 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 911 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1303, Invalid=3119, Unknown=0, NotChecked=0, Total=4422 [2020-10-15 00:07:01,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-10-15 00:07:01,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 161. [2020-10-15 00:07:01,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-10-15 00:07:01,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 211 transitions. [2020-10-15 00:07:01,090 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 211 transitions. Word has length 81 [2020-10-15 00:07:01,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:07:01,090 INFO L479 AbstractCegarLoop]: Abstraction has 161 states and 211 transitions. [2020-10-15 00:07:01,090 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-15 00:07:01,090 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 211 transitions. [2020-10-15 00:07:01,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-15 00:07:01,091 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:07:01,091 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:07:01,092 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-10-15 00:07:01,092 INFO L427 AbstractCegarLoop]: === Iteration 41 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:07:01,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:07:01,092 INFO L82 PathProgramCache]: Analyzing trace with hash -1834626071, now seen corresponding path program 35 times [2020-10-15 00:07:01,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:07:01,092 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1776673518] [2020-10-15 00:07:01,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:07:01,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:01,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:01,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:01,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:01,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:01,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:01,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:01,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-15 00:07:01,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 00:07:01,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 295 [2020-10-15 00:07:01,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:01,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:01,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-15 00:07:01,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:07:01,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-15 00:07:01,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:07:01,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:07:01,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:01,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:01,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:01,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:07:01,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:01,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:07:01,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:01,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:01,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:01,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:01,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:07:01,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:07:01,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:07:01,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:01,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:01,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:01,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:01,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:01,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:07:01,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:01,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:01,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:01,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:01,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:01,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:07:01,793 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 0 proven. 590 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 00:07:01,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1776673518] [2020-10-15 00:07:01,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:07:01,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-15 00:07:01,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6186290] [2020-10-15 00:07:01,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-15 00:07:01,795 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:07:01,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-15 00:07:01,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=411, Unknown=0, NotChecked=0, Total=650 [2020-10-15 00:07:01,795 INFO L87 Difference]: Start difference. First operand 161 states and 211 transitions. Second operand 26 states. [2020-10-15 00:07:04,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:07:04,552 INFO L93 Difference]: Finished difference Result 404 states and 528 transitions. [2020-10-15 00:07:04,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2020-10-15 00:07:04,553 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 81 [2020-10-15 00:07:04,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:07:04,554 INFO L225 Difference]: With dead ends: 404 [2020-10-15 00:07:04,554 INFO L226 Difference]: Without dead ends: 255 [2020-10-15 00:07:04,555 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3927 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=3260, Invalid=8512, Unknown=0, NotChecked=0, Total=11772 [2020-10-15 00:07:04,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-10-15 00:07:04,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 227. [2020-10-15 00:07:04,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-10-15 00:07:04,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 297 transitions. [2020-10-15 00:07:04,577 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 297 transitions. Word has length 81 [2020-10-15 00:07:04,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:07:04,578 INFO L479 AbstractCegarLoop]: Abstraction has 227 states and 297 transitions. [2020-10-15 00:07:04,578 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-15 00:07:04,578 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 297 transitions. [2020-10-15 00:07:04,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-15 00:07:04,578 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:07:04,578 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:07:04,578 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-15 00:07:04,579 INFO L427 AbstractCegarLoop]: === Iteration 42 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:07:04,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:07:04,579 INFO L82 PathProgramCache]: Analyzing trace with hash -1207603837, now seen corresponding path program 1 times [2020-10-15 00:07:04,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:07:04,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [747477761] [2020-10-15 00:07:04,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:07:04,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:04,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:04,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:04,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:04,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:05,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:06,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:06,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-15 00:07:06,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 00:07:06,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1498 [2020-10-15 00:07:06,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:06,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:06,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 00:07:06,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-15 00:07:06,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-15 00:07:06,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:07:06,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:07:06,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:06,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:06,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:06,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:07:06,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:06,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:07:06,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:06,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:06,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:07:06,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:06,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:07:06,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:07:06,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:07:06,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:06,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:06,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:06,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:06,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:06,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:07:06,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:06,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:06,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 00:07:06,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:06,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 00:07:06,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:07:06,246 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2020-10-15 00:07:06,246 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [747477761] [2020-10-15 00:07:06,246 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:07:06,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 00:07:06,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651223054] [2020-10-15 00:07:06,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 00:07:06,247 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:07:06,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 00:07:06,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-15 00:07:06,247 INFO L87 Difference]: Start difference. First operand 227 states and 297 transitions. Second operand 9 states. [2020-10-15 00:07:06,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:07:06,412 INFO L93 Difference]: Finished difference Result 443 states and 583 transitions. [2020-10-15 00:07:06,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 00:07:06,413 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2020-10-15 00:07:06,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:07:06,416 INFO L225 Difference]: With dead ends: 443 [2020-10-15 00:07:06,416 INFO L226 Difference]: Without dead ends: 441 [2020-10-15 00:07:06,417 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 00:07:06,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2020-10-15 00:07:06,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 440. [2020-10-15 00:07:06,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 440 states. [2020-10-15 00:07:06,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 578 transitions. [2020-10-15 00:07:06,466 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 578 transitions. Word has length 82 [2020-10-15 00:07:06,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:07:06,466 INFO L479 AbstractCegarLoop]: Abstraction has 440 states and 578 transitions. [2020-10-15 00:07:06,466 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 00:07:06,467 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 578 transitions. [2020-10-15 00:07:06,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-15 00:07:06,467 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:07:06,468 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:07:06,468 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-10-15 00:07:06,468 INFO L427 AbstractCegarLoop]: === Iteration 43 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:07:06,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:07:06,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1209450879, now seen corresponding path program 1 times [2020-10-15 00:07:06,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:07:06,469 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55821104] [2020-10-15 00:07:06,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:07:06,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:06,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:06,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:06,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:06,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:06,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:06,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:06,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:06,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:06,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:06,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:06,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:06,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:06,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:06,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:07,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:07,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:08,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:08,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:09,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:09,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:09,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:09,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:09,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:09,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:09,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:09,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:09,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:09,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:09,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:10,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:10,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:10,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:10,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:10,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:11,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:11,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:11,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:11,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-15 00:07:11,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 36 [2020-10-15 00:07:11,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-15 00:07:11,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:11,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:11,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 00:07:11,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:07:11,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-15 00:07:11,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:07:11,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:07:11,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:11,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:11,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:11,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:07:11,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:11,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:07:11,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:11,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:11,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:11,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:11,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:07:11,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:07:11,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:07:11,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:11,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:11,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:11,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:11,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:11,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:07:11,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:11,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:11,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:11,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:11,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:11,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:07:11,532 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2020-10-15 00:07:11,532 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [55821104] [2020-10-15 00:07:11,532 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:07:11,532 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 00:07:11,532 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105259485] [2020-10-15 00:07:11,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 00:07:11,533 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:07:11,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 00:07:11,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 00:07:11,533 INFO L87 Difference]: Start difference. First operand 440 states and 578 transitions. Second operand 5 states. [2020-10-15 00:07:11,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:07:11,667 INFO L93 Difference]: Finished difference Result 856 states and 1135 transitions. [2020-10-15 00:07:11,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 00:07:11,668 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 82 [2020-10-15 00:07:11,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:07:11,670 INFO L225 Difference]: With dead ends: 856 [2020-10-15 00:07:11,670 INFO L226 Difference]: Without dead ends: 507 [2020-10-15 00:07:11,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 00:07:11,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2020-10-15 00:07:11,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 507. [2020-10-15 00:07:11,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 507 states. [2020-10-15 00:07:11,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 648 transitions. [2020-10-15 00:07:11,723 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 648 transitions. Word has length 82 [2020-10-15 00:07:11,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:07:11,723 INFO L479 AbstractCegarLoop]: Abstraction has 507 states and 648 transitions. [2020-10-15 00:07:11,724 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 00:07:11,724 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 648 transitions. [2020-10-15 00:07:11,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-15 00:07:11,725 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:07:11,726 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:07:11,726 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-10-15 00:07:11,726 INFO L427 AbstractCegarLoop]: === Iteration 44 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:07:11,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:07:11,726 INFO L82 PathProgramCache]: Analyzing trace with hash 1183773891, now seen corresponding path program 1 times [2020-10-15 00:07:11,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:07:11,727 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1477645430] [2020-10-15 00:07:11,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:07:11,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:11,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:11,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:11,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:11,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:11,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:11,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:11,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:11,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:11,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:11,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:11,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:12,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:12,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:12,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:12,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:12,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:12,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:14,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:14,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:14,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:16,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:16,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-15 00:07:16,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-10-15 00:07:16,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 00:07:16,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:16,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:16,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 00:07:16,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:07:16,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-15 00:07:16,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:07:16,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:07:16,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:16,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:16,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:16,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:07:16,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:16,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:07:16,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:16,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:16,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:16,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:16,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:07:16,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:07:16,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:07:16,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:16,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:16,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:16,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:16,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:16,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:07:16,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:16,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:16,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:16,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:16,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:16,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:07:16,800 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2020-10-15 00:07:16,800 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1477645430] [2020-10-15 00:07:16,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 00:07:16,800 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 00:07:16,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742700997] [2020-10-15 00:07:16,801 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 00:07:16,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:07:16,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 00:07:16,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 00:07:16,801 INFO L87 Difference]: Start difference. First operand 507 states and 648 transitions. Second operand 6 states. [2020-10-15 00:07:17,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:07:17,024 INFO L93 Difference]: Finished difference Result 1126 states and 1481 transitions. [2020-10-15 00:07:17,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 00:07:17,025 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 82 [2020-10-15 00:07:17,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:07:17,028 INFO L225 Difference]: With dead ends: 1126 [2020-10-15 00:07:17,028 INFO L226 Difference]: Without dead ends: 769 [2020-10-15 00:07:17,029 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-15 00:07:17,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2020-10-15 00:07:17,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 635. [2020-10-15 00:07:17,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 635 states. [2020-10-15 00:07:17,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 803 transitions. [2020-10-15 00:07:17,096 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 803 transitions. Word has length 82 [2020-10-15 00:07:17,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:07:17,096 INFO L479 AbstractCegarLoop]: Abstraction has 635 states and 803 transitions. [2020-10-15 00:07:17,097 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 00:07:17,097 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 803 transitions. [2020-10-15 00:07:17,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-15 00:07:17,098 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:07:17,098 INFO L422 BasicCegarLoop]: trace histogram [40, 40, 40, 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] [2020-10-15 00:07:17,098 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-10-15 00:07:17,098 INFO L427 AbstractCegarLoop]: === Iteration 45 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:07:17,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:07:17,099 INFO L82 PathProgramCache]: Analyzing trace with hash -1895774088, now seen corresponding path program 1 times [2020-10-15 00:07:17,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:07:17,099 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1997622464] [2020-10-15 00:07:17,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:07:17,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:17,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:17,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:17,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:17,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:17,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:17,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:17,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:17,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:17,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:17,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:17,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:17,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:19,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:19,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:22,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:22,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-15 00:07:22,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 00:07:22,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-15 00:07:22,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:22,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:22,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 00:07:22,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:07:22,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-15 00:07:22,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:07:22,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:07:22,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:22,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:22,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:22,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:07:22,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:22,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:07:22,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:22,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:22,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:22,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:22,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:07:22,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:07:22,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:07:22,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:22,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:22,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:22,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:22,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:22,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:07:22,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:22,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:22,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:22,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:22,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:22,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:07:22,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 00:07:22,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:22,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:22,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:22,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:22,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:22,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:07:22,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:22,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:22,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:22,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:22,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:22,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:07:22,201 INFO L134 CoverageAnalysis]: Checked inductivity of 2429 backedges. 3 proven. 1246 refuted. 0 times theorem prover too weak. 1180 trivial. 0 not checked. [2020-10-15 00:07:22,202 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1997622464] [2020-10-15 00:07:22,202 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:07:22,202 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-15 00:07:22,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022235666] [2020-10-15 00:07:22,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 00:07:22,202 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:07:22,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 00:07:22,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 00:07:22,203 INFO L87 Difference]: Start difference. First operand 635 states and 803 transitions. Second operand 7 states. [2020-10-15 00:07:22,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:07:22,443 INFO L93 Difference]: Finished difference Result 1254 states and 1591 transitions. [2020-10-15 00:07:22,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 00:07:22,444 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 153 [2020-10-15 00:07:22,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:07:22,448 INFO L225 Difference]: With dead ends: 1254 [2020-10-15 00:07:22,448 INFO L226 Difference]: Without dead ends: 770 [2020-10-15 00:07:22,450 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-15 00:07:22,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2020-10-15 00:07:22,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 702. [2020-10-15 00:07:22,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 702 states. [2020-10-15 00:07:22,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 873 transitions. [2020-10-15 00:07:22,519 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 873 transitions. Word has length 153 [2020-10-15 00:07:22,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:07:22,519 INFO L479 AbstractCegarLoop]: Abstraction has 702 states and 873 transitions. [2020-10-15 00:07:22,519 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 00:07:22,519 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 873 transitions. [2020-10-15 00:07:22,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-10-15 00:07:22,521 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:07:22,521 INFO L422 BasicCegarLoop]: trace histogram [60, 60, 60, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:07:22,521 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-10-15 00:07:22,521 INFO L427 AbstractCegarLoop]: === Iteration 46 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:07:22,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:07:22,522 INFO L82 PathProgramCache]: Analyzing trace with hash -816482525, now seen corresponding path program 2 times [2020-10-15 00:07:22,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:07:22,522 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [733616164] [2020-10-15 00:07:22,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:07:22,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:22,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:22,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:22,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:22,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:22,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:22,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:23,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:23,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:23,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:23,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:23,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:24,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:24,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:24,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:24,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:25,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:25,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:25,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:25,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:25,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:25,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:25,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:27,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:27,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:27,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:27,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 238 [2020-10-15 00:07:27,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 24 [2020-10-15 00:07:27,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-15 00:07:27,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:27,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:27,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 00:07:27,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:07:27,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 227 [2020-10-15 00:07:27,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:07:27,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:07:27,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:27,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:27,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:27,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:07:27,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:27,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:07:27,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:27,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:27,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:27,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:27,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:07:27,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:07:27,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:07:27,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:27,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:27,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:27,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:27,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:27,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:07:27,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:27,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:27,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:27,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:27,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:27,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:07:27,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 00:07:27,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:27,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:27,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:27,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:27,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:27,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:07:27,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:27,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:27,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:27,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:27,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:27,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:07:27,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-15 00:07:27,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:27,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:27,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:27,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:27,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:27,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:07:27,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:27,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:27,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:27,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:27,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:27,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:07:27,685 INFO L134 CoverageAnalysis]: Checked inductivity of 5519 backedges. 6 proven. 3739 refuted. 0 times theorem prover too weak. 1774 trivial. 0 not checked. [2020-10-15 00:07:27,685 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [733616164] [2020-10-15 00:07:27,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:07:27,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-15 00:07:27,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480971051] [2020-10-15 00:07:27,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 00:07:27,686 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:07:27,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 00:07:27,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-15 00:07:27,687 INFO L87 Difference]: Start difference. First operand 702 states and 873 transitions. Second operand 8 states. [2020-10-15 00:07:27,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:07:27,939 INFO L93 Difference]: Finished difference Result 1321 states and 1661 transitions. [2020-10-15 00:07:27,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 00:07:27,939 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 224 [2020-10-15 00:07:27,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:07:27,942 INFO L225 Difference]: With dead ends: 1321 [2020-10-15 00:07:27,942 INFO L226 Difference]: Without dead ends: 837 [2020-10-15 00:07:27,944 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-15 00:07:27,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2020-10-15 00:07:27,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 769. [2020-10-15 00:07:27,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 769 states. [2020-10-15 00:07:27,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 943 transitions. [2020-10-15 00:07:28,000 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 943 transitions. Word has length 224 [2020-10-15 00:07:28,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:07:28,000 INFO L479 AbstractCegarLoop]: Abstraction has 769 states and 943 transitions. [2020-10-15 00:07:28,000 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 00:07:28,000 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 943 transitions. [2020-10-15 00:07:28,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-10-15 00:07:28,002 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:07:28,002 INFO L422 BasicCegarLoop]: trace histogram [80, 80, 80, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:07:28,003 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-10-15 00:07:28,003 INFO L427 AbstractCegarLoop]: === Iteration 47 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:07:28,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:07:28,003 INFO L82 PathProgramCache]: Analyzing trace with hash -1218979304, now seen corresponding path program 3 times [2020-10-15 00:07:28,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:07:28,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [973403739] [2020-10-15 00:07:28,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:07:28,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:28,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:28,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:28,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:28,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:28,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:28,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:28,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:28,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:28,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:28,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:29,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:33,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:33,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 311 [2020-10-15 00:07:33,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-15 00:07:33,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-15 00:07:33,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:33,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:33,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 00:07:33,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:07:33,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 300 [2020-10-15 00:07:33,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:07:33,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:07:33,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:33,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:33,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:33,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:07:33,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:33,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:07:33,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:33,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:33,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:33,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:33,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:07:33,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:07:33,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:07:33,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:33,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:33,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:33,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:33,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:33,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:07:33,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:33,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:33,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:33,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:33,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:33,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:07:33,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 00:07:33,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:33,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:33,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:33,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:33,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:33,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:07:33,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:33,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:33,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:33,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:33,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:33,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:07:33,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-15 00:07:33,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:33,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:33,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:33,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:33,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:33,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:07:33,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:33,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:33,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:33,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:33,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:33,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:07:33,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-15 00:07:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:33,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:33,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:33,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:33,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:33,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:07:33,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:33,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:33,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:33,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:33,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:33,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:07:33,266 INFO L134 CoverageAnalysis]: Checked inductivity of 9860 backedges. 9 proven. 7479 refuted. 0 times theorem prover too weak. 2372 trivial. 0 not checked. [2020-10-15 00:07:33,267 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [973403739] [2020-10-15 00:07:33,267 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:07:33,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-15 00:07:33,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224059951] [2020-10-15 00:07:33,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 00:07:33,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:07:33,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 00:07:33,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-15 00:07:33,268 INFO L87 Difference]: Start difference. First operand 769 states and 943 transitions. Second operand 9 states. [2020-10-15 00:07:33,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:07:33,523 INFO L93 Difference]: Finished difference Result 1388 states and 1731 transitions. [2020-10-15 00:07:33,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 00:07:33,530 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 295 [2020-10-15 00:07:33,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:07:33,534 INFO L225 Difference]: With dead ends: 1388 [2020-10-15 00:07:33,534 INFO L226 Difference]: Without dead ends: 904 [2020-10-15 00:07:33,535 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2020-10-15 00:07:33,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2020-10-15 00:07:33,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 836. [2020-10-15 00:07:33,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 836 states. [2020-10-15 00:07:33,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1013 transitions. [2020-10-15 00:07:33,601 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1013 transitions. Word has length 295 [2020-10-15 00:07:33,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:07:33,602 INFO L479 AbstractCegarLoop]: Abstraction has 836 states and 1013 transitions. [2020-10-15 00:07:33,602 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 00:07:33,602 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1013 transitions. [2020-10-15 00:07:33,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2020-10-15 00:07:33,605 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:07:33,605 INFO L422 BasicCegarLoop]: trace histogram [100, 100, 100, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:07:33,606 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-10-15 00:07:33,606 INFO L427 AbstractCegarLoop]: === Iteration 48 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:07:33,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:07:33,606 INFO L82 PathProgramCache]: Analyzing trace with hash -2083368573, now seen corresponding path program 4 times [2020-10-15 00:07:33,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:07:33,607 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1218920907] [2020-10-15 00:07:33,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:07:33,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:33,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:33,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:34,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:34,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:34,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:34,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:34,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:34,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:34,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:34,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:34,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:34,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:34,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:34,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:34,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:34,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:35,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:38,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:38,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 384 [2020-10-15 00:07:38,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-15 00:07:38,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5072 [2020-10-15 00:07:38,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:38,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:38,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 00:07:38,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:07:38,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 373 [2020-10-15 00:07:38,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:07:38,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:07:38,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:38,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:38,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:38,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:07:38,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:38,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:07:38,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:38,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:38,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:38,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:38,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:07:38,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:07:38,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:07:38,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:38,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:38,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:38,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:38,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:38,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:07:38,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:38,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:38,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:38,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:38,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:38,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:07:38,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 00:07:38,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:38,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:38,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:38,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:38,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:38,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:07:38,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:38,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:38,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:38,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:38,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:38,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:07:38,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-15 00:07:38,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:38,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:38,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:38,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:38,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:38,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:07:38,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:38,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:38,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:38,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:38,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:38,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:07:38,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-15 00:07:38,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:38,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:38,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:38,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:38,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:38,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:07:38,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:38,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:38,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:38,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:38,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:38,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:07:38,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2020-10-15 00:07:38,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:38,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:38,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:38,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:38,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:38,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:07:38,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:38,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:38,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:38,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:38,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:38,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:07:39,068 INFO L134 CoverageAnalysis]: Checked inductivity of 15452 backedges. 12 proven. 12466 refuted. 0 times theorem prover too weak. 2974 trivial. 0 not checked. [2020-10-15 00:07:39,068 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1218920907] [2020-10-15 00:07:39,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:07:39,069 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-15 00:07:39,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922782627] [2020-10-15 00:07:39,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 00:07:39,069 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:07:39,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 00:07:39,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-15 00:07:39,070 INFO L87 Difference]: Start difference. First operand 836 states and 1013 transitions. Second operand 10 states. [2020-10-15 00:07:39,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:07:39,368 INFO L93 Difference]: Finished difference Result 1455 states and 1801 transitions. [2020-10-15 00:07:39,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 00:07:39,369 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 366 [2020-10-15 00:07:39,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:07:39,372 INFO L225 Difference]: With dead ends: 1455 [2020-10-15 00:07:39,373 INFO L226 Difference]: Without dead ends: 971 [2020-10-15 00:07:39,374 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2020-10-15 00:07:39,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2020-10-15 00:07:39,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 903. [2020-10-15 00:07:39,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 903 states. [2020-10-15 00:07:39,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1083 transitions. [2020-10-15 00:07:39,445 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1083 transitions. Word has length 366 [2020-10-15 00:07:39,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:07:39,445 INFO L479 AbstractCegarLoop]: Abstraction has 903 states and 1083 transitions. [2020-10-15 00:07:39,445 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 00:07:39,446 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1083 transitions. [2020-10-15 00:07:39,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2020-10-15 00:07:39,448 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:07:39,449 INFO L422 BasicCegarLoop]: trace histogram [120, 120, 120, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:07:39,449 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-10-15 00:07:39,449 INFO L427 AbstractCegarLoop]: === Iteration 49 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:07:39,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:07:39,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1721396296, now seen corresponding path program 5 times [2020-10-15 00:07:39,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:07:39,450 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1265912809] [2020-10-15 00:07:39,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:07:39,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:39,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:39,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:40,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:40,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:40,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:40,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:40,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:40,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:40,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:40,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:40,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:40,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:40,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:40,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:40,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:40,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:42,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:42,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:42,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:44,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:44,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 457 [2020-10-15 00:07:44,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-15 00:07:44,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-15 00:07:44,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:44,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:44,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 00:07:44,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:07:44,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 446 [2020-10-15 00:07:44,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:07:44,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:07:44,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:44,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:44,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:44,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:07:44,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:44,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:07:44,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:44,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:44,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:44,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:44,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:07:44,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:07:44,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:07:44,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:44,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:44,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:44,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:44,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:44,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:07:44,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:44,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:44,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:44,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:44,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:44,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:07:44,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 00:07:44,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:44,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:44,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:44,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:44,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:44,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:07:44,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:44,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:44,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:44,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:44,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:44,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:07:44,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-15 00:07:44,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:44,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:44,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:44,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:44,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:44,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:07:44,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:44,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:44,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:44,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:44,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:44,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:07:44,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-15 00:07:44,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:44,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:44,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:44,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:44,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:44,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:07:44,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:44,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:44,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:44,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:44,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:44,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:07:44,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2020-10-15 00:07:44,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:44,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:44,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:44,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:44,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:44,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:07:44,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:44,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:44,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:44,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:44,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:44,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:07:44,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2020-10-15 00:07:44,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:44,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:44,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:44,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:44,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:44,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:07:44,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:44,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:44,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:44,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:44,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:44,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:07:45,367 INFO L134 CoverageAnalysis]: Checked inductivity of 22295 backedges. 15 proven. 18700 refuted. 0 times theorem prover too weak. 3580 trivial. 0 not checked. [2020-10-15 00:07:45,369 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1265912809] [2020-10-15 00:07:45,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:07:45,370 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-15 00:07:45,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108930839] [2020-10-15 00:07:45,371 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 00:07:45,371 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:07:45,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 00:07:45,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-10-15 00:07:45,372 INFO L87 Difference]: Start difference. First operand 903 states and 1083 transitions. Second operand 11 states. [2020-10-15 00:07:45,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:07:45,908 INFO L93 Difference]: Finished difference Result 1522 states and 1871 transitions. [2020-10-15 00:07:45,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 00:07:45,910 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 437 [2020-10-15 00:07:45,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:07:45,917 INFO L225 Difference]: With dead ends: 1522 [2020-10-15 00:07:45,917 INFO L226 Difference]: Without dead ends: 1038 [2020-10-15 00:07:45,921 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2020-10-15 00:07:45,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2020-10-15 00:07:46,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 970. [2020-10-15 00:07:46,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 970 states. [2020-10-15 00:07:46,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1153 transitions. [2020-10-15 00:07:46,052 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1153 transitions. Word has length 437 [2020-10-15 00:07:46,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:07:46,054 INFO L479 AbstractCegarLoop]: Abstraction has 970 states and 1153 transitions. [2020-10-15 00:07:46,054 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 00:07:46,054 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1153 transitions. [2020-10-15 00:07:46,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2020-10-15 00:07:46,061 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:07:46,062 INFO L422 BasicCegarLoop]: trace histogram [140, 140, 140, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:07:46,062 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-10-15 00:07:46,062 INFO L427 AbstractCegarLoop]: === Iteration 50 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:07:46,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:07:46,063 INFO L82 PathProgramCache]: Analyzing trace with hash -57965597, now seen corresponding path program 6 times [2020-10-15 00:07:46,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:07:46,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [615916329] [2020-10-15 00:07:46,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:07:46,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:46,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:46,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:46,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:46,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:46,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:46,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:47,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:47,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:47,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:47,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:47,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:47,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:47,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:47,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:47,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:49,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:50,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:50,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:51,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:51,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 530 [2020-10-15 00:07:51,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-15 00:07:51,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-10-15 00:07:51,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:51,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:51,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 00:07:51,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:07:51,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 519 [2020-10-15 00:07:51,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:07:51,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:07:51,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:51,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:51,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:51,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:07:51,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:51,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:07:51,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:51,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:51,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:51,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:51,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:07:51,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:07:51,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:07:51,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:51,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:51,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:51,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:51,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:51,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:07:51,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:51,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:51,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:51,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:51,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:51,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:07:51,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 00:07:51,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:51,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:51,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:51,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:51,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:51,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:07:51,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:51,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:51,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:51,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:51,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:51,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:07:51,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-15 00:07:51,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:51,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:51,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:51,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:51,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:51,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:07:51,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:51,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:51,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:51,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:51,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:51,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:07:51,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-15 00:07:51,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:51,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:51,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:51,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:51,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:51,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:07:51,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:51,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:51,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:51,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:51,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:51,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:07:51,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2020-10-15 00:07:51,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:51,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:51,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:51,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:51,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:51,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:07:51,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:51,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:51,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:51,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:51,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:51,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:07:51,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2020-10-15 00:07:51,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:51,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:51,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:51,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:51,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:51,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:07:51,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:51,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:51,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:51,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:51,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:51,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:07:51,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2020-10-15 00:07:51,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:51,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:51,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:51,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:51,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:51,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:07:51,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:51,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:51,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:51,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:51,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:51,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:07:52,238 INFO L134 CoverageAnalysis]: Checked inductivity of 30389 backedges. 18 proven. 26181 refuted. 0 times theorem prover too weak. 4190 trivial. 0 not checked. [2020-10-15 00:07:52,238 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [615916329] [2020-10-15 00:07:52,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:07:52,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-15 00:07:52,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388933186] [2020-10-15 00:07:52,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 00:07:52,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:07:52,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 00:07:52,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-10-15 00:07:52,241 INFO L87 Difference]: Start difference. First operand 970 states and 1153 transitions. Second operand 12 states. [2020-10-15 00:07:52,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:07:52,644 INFO L93 Difference]: Finished difference Result 1589 states and 1941 transitions. [2020-10-15 00:07:52,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 00:07:52,645 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 508 [2020-10-15 00:07:52,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:07:52,651 INFO L225 Difference]: With dead ends: 1589 [2020-10-15 00:07:52,651 INFO L226 Difference]: Without dead ends: 1105 [2020-10-15 00:07:52,652 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=279, Unknown=0, NotChecked=0, Total=420 [2020-10-15 00:07:52,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2020-10-15 00:07:52,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 1037. [2020-10-15 00:07:52,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1037 states. [2020-10-15 00:07:52,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1223 transitions. [2020-10-15 00:07:52,731 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1223 transitions. Word has length 508 [2020-10-15 00:07:52,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:07:52,732 INFO L479 AbstractCegarLoop]: Abstraction has 1037 states and 1223 transitions. [2020-10-15 00:07:52,732 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 00:07:52,732 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1223 transitions. [2020-10-15 00:07:52,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 580 [2020-10-15 00:07:52,737 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:07:52,737 INFO L422 BasicCegarLoop]: trace histogram [160, 160, 160, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:07:52,737 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2020-10-15 00:07:52,738 INFO L427 AbstractCegarLoop]: === Iteration 51 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:07:52,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:07:52,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1239676248, now seen corresponding path program 7 times [2020-10-15 00:07:52,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:07:52,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [822224104] [2020-10-15 00:07:52,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:07:52,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:52,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:52,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:53,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:53,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:53,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:53,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:53,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:53,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:54,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:54,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:54,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:54,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:54,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:55,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:55,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:55,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:57,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:57,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 603 [2020-10-15 00:07:57,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-15 00:07:57,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-15 00:07:57,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:57,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:57,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 00:07:57,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:07:57,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 592 [2020-10-15 00:07:57,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:07:58,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:07:58,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:58,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:58,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:58,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:07:58,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:58,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:07:58,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:58,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:58,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:58,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:58,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:07:58,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:07:58,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:07:58,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:58,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:58,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:58,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:58,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:58,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:07:58,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:58,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:58,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:58,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:58,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:58,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:07:58,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 00:07:58,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:58,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:58,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:58,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:58,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:58,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:07:58,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:58,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:58,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:58,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:58,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:58,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:07:58,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-15 00:07:58,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:58,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:58,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:58,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:58,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:58,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:07:58,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:58,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:58,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:58,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:58,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:58,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:07:58,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-15 00:07:58,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:58,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:58,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:58,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:58,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:58,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:07:58,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:58,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:58,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:58,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:58,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:58,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:07:58,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2020-10-15 00:07:58,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:58,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:58,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:58,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:58,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:58,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:07:58,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:58,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:58,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:58,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:58,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:58,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:07:58,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2020-10-15 00:07:58,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:58,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:58,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:58,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:58,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:58,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:07:58,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:58,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:58,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:58,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:58,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:58,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:07:58,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2020-10-15 00:07:58,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:58,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:58,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:58,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:58,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:58,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:07:58,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:58,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:58,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:58,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:58,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:58,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:07:58,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-15 00:07:58,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:58,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:07:58,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:07:58,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:07:58,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:07:58,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 00:07:58,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:07:58,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:07:58,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:07:58,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:07:58,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:07:58,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:07:58,850 INFO L134 CoverageAnalysis]: Checked inductivity of 39734 backedges. 21 proven. 34909 refuted. 0 times theorem prover too weak. 4804 trivial. 0 not checked. [2020-10-15 00:07:58,851 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [822224104] [2020-10-15 00:07:58,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:07:58,851 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-15 00:07:58,851 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409246042] [2020-10-15 00:07:58,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 00:07:58,852 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:07:58,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 00:07:58,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2020-10-15 00:07:58,853 INFO L87 Difference]: Start difference. First operand 1037 states and 1223 transitions. Second operand 13 states. [2020-10-15 00:07:59,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:07:59,285 INFO L93 Difference]: Finished difference Result 1656 states and 2011 transitions. [2020-10-15 00:07:59,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 00:07:59,287 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 579 [2020-10-15 00:07:59,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:07:59,292 INFO L225 Difference]: With dead ends: 1656 [2020-10-15 00:07:59,292 INFO L226 Difference]: Without dead ends: 1172 [2020-10-15 00:07:59,293 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=335, Unknown=0, NotChecked=0, Total=506 [2020-10-15 00:07:59,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1172 states. [2020-10-15 00:07:59,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1172 to 1104. [2020-10-15 00:07:59,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1104 states. [2020-10-15 00:07:59,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 1293 transitions. [2020-10-15 00:07:59,374 INFO L78 Accepts]: Start accepts. Automaton has 1104 states and 1293 transitions. Word has length 579 [2020-10-15 00:07:59,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:07:59,375 INFO L479 AbstractCegarLoop]: Abstraction has 1104 states and 1293 transitions. [2020-10-15 00:07:59,376 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 00:07:59,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1104 states and 1293 transitions. [2020-10-15 00:07:59,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 651 [2020-10-15 00:07:59,382 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:07:59,383 INFO L422 BasicCegarLoop]: trace histogram [180, 180, 180, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:07:59,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2020-10-15 00:07:59,383 INFO L427 AbstractCegarLoop]: === Iteration 52 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:07:59,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:07:59,383 INFO L82 PathProgramCache]: Analyzing trace with hash 260509251, now seen corresponding path program 8 times [2020-10-15 00:07:59,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:07:59,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [333222232] [2020-10-15 00:07:59,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:07:59,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:07:59,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:00,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:00,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:00,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:00,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:01,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:01,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:01,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:01,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:01,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:01,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:04,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:04,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 676 [2020-10-15 00:08:04,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-15 00:08:04,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-15 00:08:04,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:04,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:04,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-15 00:08:04,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:08:04,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 665 [2020-10-15 00:08:04,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:04,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:08:04,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:04,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:04,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:04,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:08:04,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:04,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:04,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:04,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:04,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:04,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:04,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:08:04,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:04,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:08:04,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:04,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:04,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:04,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:04,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:04,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:04,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:04,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:04,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:04,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:04,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:04,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:04,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 00:08:04,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:04,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:04,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:04,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:04,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:04,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:04,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:04,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:04,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:04,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:04,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:04,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:04,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-15 00:08:04,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:04,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:04,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:04,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:04,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:04,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:04,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:04,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:04,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:04,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:04,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:04,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:04,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-15 00:08:04,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:04,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:04,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:04,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:04,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:04,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:04,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:04,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:04,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:04,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:04,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:04,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:04,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2020-10-15 00:08:04,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:04,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:04,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:04,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:04,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:04,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:08:04,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:04,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:04,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:04,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:04,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:04,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:04,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2020-10-15 00:08:04,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:04,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:04,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:04,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:04,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:04,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:08:04,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:04,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:04,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:04,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:04,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:04,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:04,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2020-10-15 00:08:04,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:04,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:04,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:04,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:04,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:04,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:04,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:04,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:04,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:04,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:04,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:04,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:04,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-15 00:08:04,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:04,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:04,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:04,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:04,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:04,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:04,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:04,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:04,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:04,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:04,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:04,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:04,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2020-10-15 00:08:04,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:04,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:04,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:04,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:04,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:04,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:04,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:04,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:04,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:04,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:04,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:04,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:05,324 INFO L134 CoverageAnalysis]: Checked inductivity of 50330 backedges. 24 proven. 44884 refuted. 0 times theorem prover too weak. 5422 trivial. 0 not checked. [2020-10-15 00:08:05,325 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [333222232] [2020-10-15 00:08:05,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:08:05,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-15 00:08:05,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518073629] [2020-10-15 00:08:05,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 00:08:05,326 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:08:05,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 00:08:05,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=113, Unknown=0, NotChecked=0, Total=182 [2020-10-15 00:08:05,327 INFO L87 Difference]: Start difference. First operand 1104 states and 1293 transitions. Second operand 14 states. [2020-10-15 00:08:05,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:08:05,928 INFO L93 Difference]: Finished difference Result 1790 states and 2190 transitions. [2020-10-15 00:08:05,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 00:08:05,930 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 650 [2020-10-15 00:08:05,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:08:05,937 INFO L225 Difference]: With dead ends: 1790 [2020-10-15 00:08:05,938 INFO L226 Difference]: Without dead ends: 1306 [2020-10-15 00:08:05,939 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=216, Invalid=434, Unknown=0, NotChecked=0, Total=650 [2020-10-15 00:08:05,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1306 states. [2020-10-15 00:08:06,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1306 to 1171. [2020-10-15 00:08:06,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1171 states. [2020-10-15 00:08:06,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 1363 transitions. [2020-10-15 00:08:06,077 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 1363 transitions. Word has length 650 [2020-10-15 00:08:06,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:08:06,078 INFO L479 AbstractCegarLoop]: Abstraction has 1171 states and 1363 transitions. [2020-10-15 00:08:06,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 00:08:06,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 1363 transitions. [2020-10-15 00:08:06,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 722 [2020-10-15 00:08:06,091 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:08:06,091 INFO L422 BasicCegarLoop]: trace histogram [200, 200, 200, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:08:06,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2020-10-15 00:08:06,092 INFO L427 AbstractCegarLoop]: === Iteration 53 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:08:06,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:08:06,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1879899896, now seen corresponding path program 9 times [2020-10-15 00:08:06,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:08:06,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2022443638] [2020-10-15 00:08:06,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:08:06,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:06,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:07,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:07,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:07,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:07,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:07,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:07,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:08,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:08,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:08,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:08,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:08,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:08,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:08,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:08,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:11,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:11,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 749 [2020-10-15 00:08:11,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-15 00:08:11,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5055 [2020-10-15 00:08:11,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:11,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:11,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 00:08:11,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:08:11,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 738 [2020-10-15 00:08:11,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:11,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:08:11,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:11,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:11,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:11,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:08:11,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:11,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:11,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:11,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:11,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:11,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:11,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:08:11,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:11,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:08:11,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:11,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:11,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:11,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:11,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:11,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:11,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:11,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:11,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:11,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:11,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:11,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:11,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 00:08:11,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:11,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:11,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:11,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:11,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:11,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:11,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:11,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:11,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:11,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:11,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:11,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:11,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-15 00:08:11,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:11,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:11,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:11,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:11,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:11,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:08:11,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:11,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:11,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:11,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:11,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:11,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:11,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-15 00:08:11,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:11,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:11,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:11,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:11,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:11,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:11,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:11,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:11,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:11,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:11,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:11,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:11,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2020-10-15 00:08:11,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:11,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:11,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:11,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:11,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:11,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:11,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:11,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:11,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:11,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:11,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:11,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:11,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2020-10-15 00:08:11,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:11,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:11,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:11,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:11,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:11,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:11,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:11,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:11,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:11,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:11,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:11,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:11,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2020-10-15 00:08:11,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:11,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:11,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:11,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:11,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:11,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:11,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:11,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:11,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:11,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:11,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:11,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:11,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-15 00:08:11,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:11,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:11,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:11,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:11,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:11,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:11,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:11,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:11,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:11,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:11,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:11,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:11,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2020-10-15 00:08:11,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:11,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:11,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:11,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:11,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:11,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:11,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:11,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:11,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:11,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:11,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:11,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:11,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2020-10-15 00:08:11,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:11,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:11,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:11,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:11,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:11,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:11,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:11,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:11,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:11,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:11,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:11,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:12,222 INFO L134 CoverageAnalysis]: Checked inductivity of 62177 backedges. 27 proven. 56106 refuted. 0 times theorem prover too weak. 6044 trivial. 0 not checked. [2020-10-15 00:08:12,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2022443638] [2020-10-15 00:08:12,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:08:12,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-15 00:08:12,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615326221] [2020-10-15 00:08:12,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-15 00:08:12,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:08:12,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-15 00:08:12,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=128, Unknown=0, NotChecked=0, Total=210 [2020-10-15 00:08:12,225 INFO L87 Difference]: Start difference. First operand 1171 states and 1363 transitions. Second operand 15 states. [2020-10-15 00:08:12,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:08:12,693 INFO L93 Difference]: Finished difference Result 1790 states and 2151 transitions. [2020-10-15 00:08:12,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 00:08:12,693 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 721 [2020-10-15 00:08:12,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:08:12,699 INFO L225 Difference]: With dead ends: 1790 [2020-10-15 00:08:12,699 INFO L226 Difference]: Without dead ends: 1306 [2020-10-15 00:08:12,701 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=240, Invalid=462, Unknown=0, NotChecked=0, Total=702 [2020-10-15 00:08:12,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1306 states. [2020-10-15 00:08:12,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1306 to 1238. [2020-10-15 00:08:12,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1238 states. [2020-10-15 00:08:12,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1433 transitions. [2020-10-15 00:08:12,790 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1433 transitions. Word has length 721 [2020-10-15 00:08:12,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:08:12,791 INFO L479 AbstractCegarLoop]: Abstraction has 1238 states and 1433 transitions. [2020-10-15 00:08:12,791 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-15 00:08:12,791 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1433 transitions. [2020-10-15 00:08:12,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 793 [2020-10-15 00:08:12,798 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:08:12,799 INFO L422 BasicCegarLoop]: trace histogram [220, 220, 220, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:08:12,799 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2020-10-15 00:08:12,799 INFO L427 AbstractCegarLoop]: === Iteration 54 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:08:12,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:08:12,800 INFO L82 PathProgramCache]: Analyzing trace with hash 810217635, now seen corresponding path program 10 times [2020-10-15 00:08:12,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:08:12,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1120869024] [2020-10-15 00:08:12,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:08:12,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:13,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:13,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:14,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:14,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:14,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:14,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:14,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:14,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:14,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:14,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:15,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:15,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:16,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:16,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:16,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:18,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:18,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 822 [2020-10-15 00:08:18,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-15 00:08:18,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-15 00:08:18,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:18,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:18,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 00:08:18,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:08:18,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 811 [2020-10-15 00:08:18,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:18,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:08:18,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:18,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:18,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:18,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:08:18,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:18,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:18,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:18,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:18,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:18,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:18,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:08:18,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:18,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:08:18,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:18,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:18,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:18,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:18,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:18,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:18,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:18,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:18,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:18,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:18,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:18,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:18,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 00:08:18,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:18,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:18,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:18,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:18,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:18,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:18,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:18,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:18,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:18,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:18,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:18,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:18,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-15 00:08:18,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:18,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:18,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:18,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:18,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:18,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:18,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:18,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:18,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:18,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:18,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:18,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:18,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-15 00:08:18,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:18,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:18,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:18,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:18,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:18,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:08:18,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:18,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:18,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:18,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:18,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:18,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:18,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2020-10-15 00:08:18,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:18,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:18,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:18,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:18,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:18,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:08:18,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:18,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:18,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:18,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:18,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:18,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:18,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2020-10-15 00:08:18,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:18,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:18,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:18,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:18,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:18,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:08:18,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:18,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:18,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:18,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:18,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:18,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:08:18,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2020-10-15 00:08:18,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:18,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:18,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:18,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:18,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:18,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:18,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:18,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:18,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:18,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:18,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:18,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:18,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-15 00:08:18,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:18,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:18,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:18,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:18,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:18,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:08:18,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:18,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:18,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:18,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:18,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:18,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:18,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2020-10-15 00:08:18,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:18,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:18,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:18,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:18,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:18,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:18,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:18,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:18,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:18,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:18,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:18,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:18,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2020-10-15 00:08:18,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:18,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:18,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:18,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:18,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:18,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:18,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:18,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:18,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:18,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:18,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:18,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:18,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 717 [2020-10-15 00:08:18,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:18,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:18,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:18,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:18,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:18,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:18,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:18,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:18,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:18,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:18,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:18,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:19,051 INFO L134 CoverageAnalysis]: Checked inductivity of 75275 backedges. 30 proven. 68575 refuted. 0 times theorem prover too weak. 6670 trivial. 0 not checked. [2020-10-15 00:08:19,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1120869024] [2020-10-15 00:08:19,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:08:19,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-15 00:08:19,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529967153] [2020-10-15 00:08:19,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-15 00:08:19,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:08:19,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-15 00:08:19,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=145, Unknown=0, NotChecked=0, Total=240 [2020-10-15 00:08:19,053 INFO L87 Difference]: Start difference. First operand 1238 states and 1433 transitions. Second operand 16 states. [2020-10-15 00:08:19,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:08:19,627 INFO L93 Difference]: Finished difference Result 1857 states and 2221 transitions. [2020-10-15 00:08:19,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 00:08:19,627 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 792 [2020-10-15 00:08:19,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:08:19,632 INFO L225 Difference]: With dead ends: 1857 [2020-10-15 00:08:19,632 INFO L226 Difference]: Without dead ends: 1373 [2020-10-15 00:08:19,633 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=279, Invalid=533, Unknown=0, NotChecked=0, Total=812 [2020-10-15 00:08:19,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1373 states. [2020-10-15 00:08:19,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1373 to 1305. [2020-10-15 00:08:19,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1305 states. [2020-10-15 00:08:19,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1305 states to 1305 states and 1503 transitions. [2020-10-15 00:08:19,733 INFO L78 Accepts]: Start accepts. Automaton has 1305 states and 1503 transitions. Word has length 792 [2020-10-15 00:08:19,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:08:19,734 INFO L479 AbstractCegarLoop]: Abstraction has 1305 states and 1503 transitions. [2020-10-15 00:08:19,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-15 00:08:19,735 INFO L276 IsEmpty]: Start isEmpty. Operand 1305 states and 1503 transitions. [2020-10-15 00:08:19,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 864 [2020-10-15 00:08:19,747 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:08:19,748 INFO L422 BasicCegarLoop]: trace histogram [240, 240, 240, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:08:19,748 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2020-10-15 00:08:19,749 INFO L427 AbstractCegarLoop]: === Iteration 55 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:08:19,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:08:19,749 INFO L82 PathProgramCache]: Analyzing trace with hash -442847080, now seen corresponding path program 11 times [2020-10-15 00:08:19,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:08:19,749 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [603142272] [2020-10-15 00:08:19,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:08:19,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:20,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:21,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:21,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:21,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:22,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:22,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:22,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:22,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:22,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:22,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:23,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:23,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:23,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:23,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:23,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:23,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:25,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:25,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 895 [2020-10-15 00:08:25,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-15 00:08:25,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-15 00:08:25,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:25,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:25,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 00:08:25,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:08:25,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 884 [2020-10-15 00:08:25,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:25,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:08:25,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:25,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:25,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:25,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:08:25,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:25,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:25,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:25,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:25,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:25,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:25,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:08:25,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:25,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:08:25,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:25,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:25,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:25,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:25,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:25,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:25,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:25,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:25,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:25,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:25,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:25,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:25,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 00:08:25,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:25,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:25,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:25,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:25,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:25,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:25,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:25,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:25,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:25,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:25,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:25,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:25,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-15 00:08:25,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:25,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:25,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:25,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:25,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:25,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:25,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:25,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:25,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:25,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:25,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:25,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:25,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-15 00:08:25,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:25,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:25,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:25,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:25,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:25,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:25,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:25,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:25,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:25,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:25,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:25,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:25,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2020-10-15 00:08:25,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:25,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:25,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:25,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:25,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:25,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:25,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:25,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:25,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:25,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:25,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:25,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:25,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2020-10-15 00:08:25,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:25,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:25,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:25,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:25,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:25,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:25,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:25,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:25,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:25,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:25,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:25,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:25,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2020-10-15 00:08:25,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:25,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:25,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:25,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:25,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:25,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:25,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:25,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:25,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:25,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:25,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:25,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:25,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-15 00:08:25,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:25,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:25,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:25,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:25,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:25,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:25,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:25,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:25,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:25,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:25,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:25,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:25,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2020-10-15 00:08:25,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:25,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:25,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:25,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:25,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:25,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:25,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:25,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:25,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:25,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:25,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:25,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:25,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2020-10-15 00:08:25,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:25,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:25,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:25,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:25,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:25,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:08:25,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:25,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:25,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:25,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:25,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:25,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:25,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 717 [2020-10-15 00:08:25,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:25,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:25,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:25,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:25,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:25,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:08:25,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:25,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:25,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:25,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:25,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:25,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:25,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 788 [2020-10-15 00:08:25,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:25,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:25,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:25,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:25,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:25,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:08:25,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:25,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:25,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:25,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:25,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:25,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:26,156 INFO L134 CoverageAnalysis]: Checked inductivity of 89624 backedges. 33 proven. 82291 refuted. 0 times theorem prover too weak. 7300 trivial. 0 not checked. [2020-10-15 00:08:26,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [603142272] [2020-10-15 00:08:26,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:08:26,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-15 00:08:26,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051715740] [2020-10-15 00:08:26,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-15 00:08:26,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:08:26,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-15 00:08:26,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=163, Unknown=0, NotChecked=0, Total=272 [2020-10-15 00:08:26,161 INFO L87 Difference]: Start difference. First operand 1305 states and 1503 transitions. Second operand 17 states. [2020-10-15 00:08:26,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:08:26,819 INFO L93 Difference]: Finished difference Result 1924 states and 2291 transitions. [2020-10-15 00:08:26,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 00:08:26,820 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 863 [2020-10-15 00:08:26,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:08:26,826 INFO L225 Difference]: With dead ends: 1924 [2020-10-15 00:08:26,826 INFO L226 Difference]: Without dead ends: 1440 [2020-10-15 00:08:26,828 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=321, Invalid=609, Unknown=0, NotChecked=0, Total=930 [2020-10-15 00:08:26,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1440 states. [2020-10-15 00:08:26,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1440 to 1372. [2020-10-15 00:08:26,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1372 states. [2020-10-15 00:08:26,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1372 states to 1372 states and 1573 transitions. [2020-10-15 00:08:26,940 INFO L78 Accepts]: Start accepts. Automaton has 1372 states and 1573 transitions. Word has length 863 [2020-10-15 00:08:26,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:08:26,941 INFO L479 AbstractCegarLoop]: Abstraction has 1372 states and 1573 transitions. [2020-10-15 00:08:26,941 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-15 00:08:26,942 INFO L276 IsEmpty]: Start isEmpty. Operand 1372 states and 1573 transitions. [2020-10-15 00:08:26,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 935 [2020-10-15 00:08:26,954 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:08:26,954 INFO L422 BasicCegarLoop]: trace histogram [260, 260, 260, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:08:26,954 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2020-10-15 00:08:26,955 INFO L427 AbstractCegarLoop]: === Iteration 56 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:08:26,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:08:26,955 INFO L82 PathProgramCache]: Analyzing trace with hash -807589117, now seen corresponding path program 12 times [2020-10-15 00:08:26,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:08:26,956 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [264493804] [2020-10-15 00:08:26,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:08:27,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:27,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:29,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:29,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:29,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:29,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:29,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:29,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:29,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:30,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:30,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:30,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:31,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:31,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:32,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:32,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 968 [2020-10-15 00:08:32,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 00:08:32,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-15 00:08:32,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:32,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:32,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-15 00:08:32,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:08:32,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 957 [2020-10-15 00:08:32,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:32,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:08:32,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:32,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:32,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:32,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:08:32,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:32,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:32,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:32,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:32,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:32,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:32,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:08:32,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:32,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:08:32,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:32,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:32,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:32,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:32,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:32,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:32,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:32,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:32,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:32,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:32,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:32,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:08:32,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 00:08:32,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:32,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:32,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:32,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:32,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:32,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:08:32,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:32,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:32,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:32,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:32,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:32,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:08:32,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-15 00:08:32,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:32,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:32,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:32,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:32,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:32,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:32,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:32,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:32,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:32,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:32,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:32,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:32,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-15 00:08:32,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:32,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:32,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:32,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:32,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:32,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:32,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:32,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:32,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:32,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:32,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:32,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:08:32,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2020-10-15 00:08:32,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:32,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:32,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:32,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:32,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:32,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:08:32,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:32,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:32,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:32,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:32,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:32,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 00:08:32,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2020-10-15 00:08:32,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:32,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:32,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:32,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:32,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:32,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:32,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:32,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:32,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:32,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:32,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:32,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:32,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2020-10-15 00:08:32,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:32,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:32,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:32,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:32,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:32,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:32,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:32,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:32,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:32,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:32,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:32,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:32,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-15 00:08:32,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:32,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:32,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:32,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:32,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:32,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:08:32,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:32,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:32,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:32,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:32,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:32,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:08:32,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2020-10-15 00:08:32,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:32,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:32,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:32,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:32,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:32,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:08:32,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:32,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:32,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:32,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:32,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:32,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:32,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2020-10-15 00:08:32,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:32,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:32,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:32,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:32,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:32,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:08:32,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:32,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:32,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:32,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:32,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:32,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:08:32,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 717 [2020-10-15 00:08:32,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:32,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:32,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:32,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:32,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:32,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:32,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:32,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:32,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:32,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:32,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:32,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:32,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 788 [2020-10-15 00:08:32,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:32,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:32,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:32,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:32,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:32,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:32,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:32,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:32,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:32,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:32,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:32,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:32,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 859 [2020-10-15 00:08:32,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:32,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:32,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:32,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:32,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:32,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:32,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:32,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:32,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:32,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:32,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:32,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:33,614 INFO L134 CoverageAnalysis]: Checked inductivity of 105224 backedges. 36 proven. 97254 refuted. 0 times theorem prover too weak. 7934 trivial. 0 not checked. [2020-10-15 00:08:33,614 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [264493804] [2020-10-15 00:08:33,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:08:33,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-15 00:08:33,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463742436] [2020-10-15 00:08:33,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-15 00:08:33,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:08:33,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-15 00:08:33,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=182, Unknown=0, NotChecked=0, Total=306 [2020-10-15 00:08:33,616 INFO L87 Difference]: Start difference. First operand 1372 states and 1573 transitions. Second operand 18 states. [2020-10-15 00:08:34,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:08:34,278 INFO L93 Difference]: Finished difference Result 1991 states and 2361 transitions. [2020-10-15 00:08:34,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 00:08:34,278 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 934 [2020-10-15 00:08:34,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:08:34,283 INFO L225 Difference]: With dead ends: 1991 [2020-10-15 00:08:34,283 INFO L226 Difference]: Without dead ends: 1507 [2020-10-15 00:08:34,285 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=366, Invalid=690, Unknown=0, NotChecked=0, Total=1056 [2020-10-15 00:08:34,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1507 states. [2020-10-15 00:08:34,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1507 to 1439. [2020-10-15 00:08:34,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1439 states. [2020-10-15 00:08:34,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1439 states to 1439 states and 1643 transitions. [2020-10-15 00:08:34,357 INFO L78 Accepts]: Start accepts. Automaton has 1439 states and 1643 transitions. Word has length 934 [2020-10-15 00:08:34,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:08:34,358 INFO L479 AbstractCegarLoop]: Abstraction has 1439 states and 1643 transitions. [2020-10-15 00:08:34,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-15 00:08:34,358 INFO L276 IsEmpty]: Start isEmpty. Operand 1439 states and 1643 transitions. [2020-10-15 00:08:34,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1006 [2020-10-15 00:08:34,370 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:08:34,370 INFO L422 BasicCegarLoop]: trace histogram [280, 280, 280, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:08:34,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2020-10-15 00:08:34,371 INFO L427 AbstractCegarLoop]: === Iteration 57 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:08:34,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:08:34,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1455884856, now seen corresponding path program 13 times [2020-10-15 00:08:34,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:08:34,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [736212758] [2020-10-15 00:08:34,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:08:34,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:34,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:35,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:35,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:36,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:36,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:37,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:37,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:37,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:37,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:37,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:38,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:39,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:39,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:39,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1041 [2020-10-15 00:08:39,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-15 00:08:39,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-15 00:08:39,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:39,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:39,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 00:08:39,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:08:39,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1030 [2020-10-15 00:08:39,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:40,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:08:40,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:40,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:40,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:40,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:08:40,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:40,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:40,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:40,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:40,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:40,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:40,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:08:40,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:40,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:08:40,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:40,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:40,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:40,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:40,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:40,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:40,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:40,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:40,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:40,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:40,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:40,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:40,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 00:08:40,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:40,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:40,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:40,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:40,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:40,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:40,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:40,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:40,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:40,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:40,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:40,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:40,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-15 00:08:40,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:40,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:40,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:40,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:40,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:40,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:08:40,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:40,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:40,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:40,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:40,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:40,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:40,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-15 00:08:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:40,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:40,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:40,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:40,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:40,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:40,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:40,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:40,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:40,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:40,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:40,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:40,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2020-10-15 00:08:40,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:40,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:40,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:40,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:40,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:40,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:40,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:40,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:40,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:40,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:40,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:40,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:40,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2020-10-15 00:08:40,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:40,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:40,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:40,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:40,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:40,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:40,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:40,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:40,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:40,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:40,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:40,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:40,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2020-10-15 00:08:40,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:40,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:40,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:40,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:40,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:40,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:08:40,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:40,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:40,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:40,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:40,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:40,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:40,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-15 00:08:40,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:40,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:40,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:40,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:40,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:40,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:08:40,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:40,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:40,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:40,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:40,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:40,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:40,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2020-10-15 00:08:40,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:40,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:40,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:40,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:40,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:40,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:40,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:40,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:40,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:40,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:40,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:40,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:40,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2020-10-15 00:08:40,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:40,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:40,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:40,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:40,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:40,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:40,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:40,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:40,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:40,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:40,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:40,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:40,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 717 [2020-10-15 00:08:40,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:40,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:40,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:40,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:40,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:40,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:40,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:40,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:40,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:40,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:40,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:40,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:40,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 788 [2020-10-15 00:08:40,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:40,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:40,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:40,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:40,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:40,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:08:40,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:40,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:40,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:40,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:40,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:40,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:40,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 859 [2020-10-15 00:08:40,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:40,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:40,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:40,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:40,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:40,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:40,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:40,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:40,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:40,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:40,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:40,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:40,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 930 [2020-10-15 00:08:40,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:40,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:40,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:40,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:40,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:40,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:40,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:40,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:40,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:40,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:40,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:40,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:41,198 INFO L134 CoverageAnalysis]: Checked inductivity of 122075 backedges. 39 proven. 113464 refuted. 0 times theorem prover too weak. 8572 trivial. 0 not checked. [2020-10-15 00:08:41,199 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [736212758] [2020-10-15 00:08:41,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:08:41,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-15 00:08:41,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063826194] [2020-10-15 00:08:41,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-15 00:08:41,205 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:08:41,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-15 00:08:41,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=203, Unknown=0, NotChecked=0, Total=342 [2020-10-15 00:08:41,205 INFO L87 Difference]: Start difference. First operand 1439 states and 1643 transitions. Second operand 19 states. [2020-10-15 00:08:41,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:08:41,935 INFO L93 Difference]: Finished difference Result 2125 states and 2540 transitions. [2020-10-15 00:08:41,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-15 00:08:41,935 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 1005 [2020-10-15 00:08:41,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:08:41,941 INFO L225 Difference]: With dead ends: 2125 [2020-10-15 00:08:41,941 INFO L226 Difference]: Without dead ends: 1641 [2020-10-15 00:08:41,942 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=431, Invalid=829, Unknown=0, NotChecked=0, Total=1260 [2020-10-15 00:08:41,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1641 states. [2020-10-15 00:08:42,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1641 to 1506. [2020-10-15 00:08:42,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1506 states. [2020-10-15 00:08:42,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 1713 transitions. [2020-10-15 00:08:42,028 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 1713 transitions. Word has length 1005 [2020-10-15 00:08:42,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:08:42,029 INFO L479 AbstractCegarLoop]: Abstraction has 1506 states and 1713 transitions. [2020-10-15 00:08:42,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-15 00:08:42,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 1713 transitions. [2020-10-15 00:08:42,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1077 [2020-10-15 00:08:42,041 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:08:42,041 INFO L422 BasicCegarLoop]: trace histogram [300, 300, 300, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:08:42,041 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2020-10-15 00:08:42,041 INFO L427 AbstractCegarLoop]: === Iteration 58 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:08:42,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:08:42,042 INFO L82 PathProgramCache]: Analyzing trace with hash -1128022685, now seen corresponding path program 14 times [2020-10-15 00:08:42,042 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:08:42,042 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1969664786] [2020-10-15 00:08:42,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:08:42,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:42,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:43,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:44,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:44,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:44,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:45,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:45,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:45,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:45,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:45,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:46,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:46,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:46,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:47,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:47,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1114 [2020-10-15 00:08:47,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 00:08:47,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-15 00:08:47,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:47,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:47,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 00:08:47,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:08:47,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1103 [2020-10-15 00:08:47,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:47,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:08:47,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:47,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:47,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:47,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:08:47,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:47,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:47,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:47,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:47,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:47,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:47,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:08:47,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:47,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:08:47,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:47,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:47,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:47,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:47,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:47,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:47,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:47,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:47,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:47,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:47,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:47,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:47,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 00:08:47,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:47,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:47,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:47,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:47,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:47,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:47,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:47,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:47,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:47,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:47,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:47,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:47,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-15 00:08:47,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:47,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:47,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:47,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:47,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:47,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:47,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:47,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:47,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:47,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:47,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:47,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:47,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-15 00:08:47,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:47,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:47,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:47,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:47,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:47,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:47,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:47,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:47,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:47,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:47,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:47,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:47,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2020-10-15 00:08:47,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:47,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:47,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:47,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:47,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:47,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:47,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:47,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:47,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:47,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:47,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:47,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:47,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2020-10-15 00:08:47,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:47,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:47,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:47,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:47,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:47,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:47,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:47,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:47,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:47,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:47,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:47,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:47,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2020-10-15 00:08:47,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:47,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:47,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:47,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:47,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:47,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:47,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:47,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:47,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:47,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:47,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:47,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:47,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-15 00:08:47,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:47,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:47,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:47,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:47,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:47,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:47,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:47,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:47,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:47,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:47,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:47,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:47,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2020-10-15 00:08:47,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:47,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:47,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:47,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:47,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:47,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:47,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:47,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:47,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:47,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:47,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:47,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:47,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2020-10-15 00:08:47,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:47,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:47,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:47,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:47,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:47,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:47,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:47,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:47,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:47,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:47,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:47,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:47,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 717 [2020-10-15 00:08:47,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:47,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:47,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:47,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:47,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:47,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:47,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:47,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:47,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:47,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:47,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:47,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:47,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 788 [2020-10-15 00:08:47,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:47,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:47,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:47,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:47,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:47,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:47,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:47,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:47,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:47,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:47,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:47,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:47,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 859 [2020-10-15 00:08:47,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:47,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:47,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:47,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:47,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:47,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:47,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:47,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:47,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:47,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:47,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:47,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:47,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 930 [2020-10-15 00:08:47,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:47,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:47,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:47,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:47,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:47,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:47,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:47,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:47,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:47,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:47,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:47,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:47,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1001 [2020-10-15 00:08:47,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:47,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:47,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:47,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:47,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:47,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:47,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:47,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:47,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:47,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:47,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:47,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:48,932 INFO L134 CoverageAnalysis]: Checked inductivity of 140177 backedges. 42 proven. 130921 refuted. 0 times theorem prover too weak. 9214 trivial. 0 not checked. [2020-10-15 00:08:48,932 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1969664786] [2020-10-15 00:08:48,932 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:08:48,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-15 00:08:48,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26412729] [2020-10-15 00:08:48,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-15 00:08:48,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:08:48,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-15 00:08:48,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=223, Unknown=0, NotChecked=0, Total=380 [2020-10-15 00:08:48,934 INFO L87 Difference]: Start difference. First operand 1506 states and 1713 transitions. Second operand 20 states. [2020-10-15 00:08:49,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:08:49,697 INFO L93 Difference]: Finished difference Result 2125 states and 2501 transitions. [2020-10-15 00:08:49,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-15 00:08:49,697 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 1076 [2020-10-15 00:08:49,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:08:49,702 INFO L225 Difference]: With dead ends: 2125 [2020-10-15 00:08:49,702 INFO L226 Difference]: Without dead ends: 1641 [2020-10-15 00:08:49,704 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=465, Invalid=867, Unknown=0, NotChecked=0, Total=1332 [2020-10-15 00:08:49,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1641 states. [2020-10-15 00:08:49,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1641 to 1573. [2020-10-15 00:08:49,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1573 states. [2020-10-15 00:08:49,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 1783 transitions. [2020-10-15 00:08:49,783 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 1783 transitions. Word has length 1076 [2020-10-15 00:08:49,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:08:49,784 INFO L479 AbstractCegarLoop]: Abstraction has 1573 states and 1783 transitions. [2020-10-15 00:08:49,784 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-15 00:08:49,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 1783 transitions. [2020-10-15 00:08:49,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1148 [2020-10-15 00:08:49,797 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:08:49,798 INFO L422 BasicCegarLoop]: trace histogram [320, 320, 320, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:08:49,798 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2020-10-15 00:08:49,798 INFO L427 AbstractCegarLoop]: === Iteration 59 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:08:49,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:08:49,799 INFO L82 PathProgramCache]: Analyzing trace with hash -498332712, now seen corresponding path program 15 times [2020-10-15 00:08:49,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:08:49,799 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1648564594] [2020-10-15 00:08:49,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:08:50,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:50,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:50,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:51,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:51,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:52,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:52,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:53,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:53,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:53,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:53,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:53,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:54,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:54,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:54,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:55,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:55,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1187 [2020-10-15 00:08:55,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-15 00:08:55,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-15 00:08:55,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:55,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:55,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-15 00:08:55,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:08:55,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1176 [2020-10-15 00:08:55,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 00:08:55,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:08:55,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:55,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:55,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:55,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:08:55,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:55,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:55,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:55,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:55,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:55,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:55,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:08:55,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:55,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:08:55,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:55,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:55,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:55,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:55,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:55,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:55,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:55,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:55,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:55,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:55,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:55,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:55,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 00:08:55,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:55,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:55,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:55,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:55,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:55,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:08:55,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:55,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:55,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:55,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:55,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:55,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:55,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-15 00:08:55,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:55,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:55,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:55,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:55,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:55,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:08:55,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:55,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:55,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:55,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:55,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:55,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:55,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-15 00:08:55,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:55,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:55,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:55,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:55,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:55,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:08:55,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:55,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:55,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:55,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:55,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:55,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:55,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2020-10-15 00:08:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:55,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:55,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:55,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:55,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:55,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:08:55,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:55,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:55,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:55,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:55,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:55,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:55,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2020-10-15 00:08:55,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:55,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:55,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:55,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:55,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:55,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:08:55,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:55,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:55,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:55,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:55,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:55,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:55,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2020-10-15 00:08:55,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:55,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:55,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:55,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:55,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:55,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:08:55,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:55,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:55,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:55,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:55,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:55,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:55,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-15 00:08:55,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:55,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:55,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:55,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:55,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:55,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:08:55,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:55,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:55,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:55,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:55,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:55,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:55,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2020-10-15 00:08:55,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:55,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:55,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:55,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:55,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:55,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:08:55,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:55,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:55,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:55,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:55,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:55,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:55,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2020-10-15 00:08:55,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:55,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:55,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:55,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:55,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:55,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:55,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:55,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:55,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:55,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:55,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:55,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:55,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 717 [2020-10-15 00:08:55,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:55,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:55,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:55,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:55,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:55,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:08:55,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:55,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:55,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:55,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:55,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:55,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:55,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 788 [2020-10-15 00:08:55,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:55,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:55,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:55,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:55,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:55,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:55,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:55,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:55,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:55,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:55,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:55,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:55,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 859 [2020-10-15 00:08:55,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:55,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:55,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:55,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:55,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:55,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:08:55,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:55,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:55,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:55,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:55,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:55,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:55,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 930 [2020-10-15 00:08:55,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:55,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:55,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:55,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:55,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:55,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:08:55,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:55,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:55,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:55,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:55,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:55,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:55,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1001 [2020-10-15 00:08:55,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:55,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:55,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:55,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:55,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:55,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:55,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:55,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:55,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:55,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:55,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:55,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:55,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1072 [2020-10-15 00:08:55,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:55,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:08:55,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:08:55,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:08:55,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:08:55,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:08:55,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:08:55,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:08:55,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:08:55,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:08:55,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:08:55,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:08:57,150 INFO L134 CoverageAnalysis]: Checked inductivity of 159530 backedges. 45 proven. 149625 refuted. 0 times theorem prover too weak. 9860 trivial. 0 not checked. [2020-10-15 00:08:57,151 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1648564594] [2020-10-15 00:08:57,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:08:57,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-15 00:08:57,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682894633] [2020-10-15 00:08:57,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-15 00:08:57,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:08:57,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-15 00:08:57,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=245, Unknown=0, NotChecked=0, Total=420 [2020-10-15 00:08:57,152 INFO L87 Difference]: Start difference. First operand 1573 states and 1783 transitions. Second operand 21 states. [2020-10-15 00:08:57,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:08:57,985 INFO L93 Difference]: Finished difference Result 2192 states and 2571 transitions. [2020-10-15 00:08:57,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-15 00:08:57,986 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 1147 [2020-10-15 00:08:57,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:08:57,993 INFO L225 Difference]: With dead ends: 2192 [2020-10-15 00:08:57,994 INFO L226 Difference]: Without dead ends: 1708 [2020-10-15 00:08:57,995 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=519, Invalid=963, Unknown=0, NotChecked=0, Total=1482 [2020-10-15 00:08:57,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1708 states. [2020-10-15 00:08:58,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1708 to 1640. [2020-10-15 00:08:58,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1640 states. [2020-10-15 00:08:58,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1640 states to 1640 states and 1853 transitions. [2020-10-15 00:08:58,092 INFO L78 Accepts]: Start accepts. Automaton has 1640 states and 1853 transitions. Word has length 1147 [2020-10-15 00:08:58,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:08:58,092 INFO L479 AbstractCegarLoop]: Abstraction has 1640 states and 1853 transitions. [2020-10-15 00:08:58,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-15 00:08:58,093 INFO L276 IsEmpty]: Start isEmpty. Operand 1640 states and 1853 transitions. [2020-10-15 00:08:58,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1219 [2020-10-15 00:08:58,103 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:08:58,104 INFO L422 BasicCegarLoop]: trace histogram [340, 340, 340, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:08:58,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2020-10-15 00:08:58,104 INFO L427 AbstractCegarLoop]: === Iteration 60 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:08:58,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:08:58,105 INFO L82 PathProgramCache]: Analyzing trace with hash -2096846909, now seen corresponding path program 16 times [2020-10-15 00:08:58,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:08:58,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1333608199] [2020-10-15 00:08:58,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:08:58,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:08:58,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:01,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:02,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:03,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:03,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:03,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:03,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1260 [2020-10-15 00:09:03,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 00:09:03,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5108 [2020-10-15 00:09:03,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:03,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:03,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-15 00:09:03,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:09:03,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1249 [2020-10-15 00:09:03,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:04,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:09:04,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:04,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:04,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:04,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:09:04,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:04,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:04,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:04,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:04,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:04,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:04,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:09:04,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:04,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:09:04,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:04,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:04,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:04,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:04,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:04,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:04,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:04,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:04,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:04,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:04,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:04,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:04,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 00:09:04,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:04,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:04,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:04,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:04,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:04,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:04,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:04,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:04,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:04,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:04,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:04,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:04,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-15 00:09:04,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:04,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:04,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:04,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:04,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:04,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:04,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:04,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:04,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:04,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:04,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:04,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:04,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-15 00:09:04,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:04,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:04,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:04,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:04,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:04,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:04,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:04,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:04,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:04,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:04,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:04,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:04,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2020-10-15 00:09:04,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:04,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:04,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:04,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:04,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:04,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:04,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:04,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:04,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:04,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:04,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:04,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:04,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2020-10-15 00:09:04,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:04,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:04,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:04,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:04,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:04,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:04,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:04,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:04,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:04,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:04,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:04,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:04,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2020-10-15 00:09:04,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:04,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:04,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:04,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:04,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:04,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:04,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:04,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:04,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:04,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:04,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:04,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:04,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-15 00:09:04,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:04,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:04,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:04,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:04,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:04,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:04,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:04,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:04,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:04,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:04,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:04,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:04,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2020-10-15 00:09:04,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:04,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:04,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:04,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:04,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:04,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:04,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:04,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:04,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:04,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:04,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:04,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:04,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2020-10-15 00:09:04,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:04,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:04,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:04,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:04,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:04,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:04,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:04,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:04,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:04,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:04,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:04,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:04,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 717 [2020-10-15 00:09:04,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:04,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:04,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:04,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:04,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:04,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:04,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:04,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:04,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:04,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:04,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:04,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:04,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 788 [2020-10-15 00:09:04,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:04,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:04,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:04,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:04,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:04,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:04,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:04,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:04,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:04,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:04,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:04,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:04,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 859 [2020-10-15 00:09:04,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:04,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:04,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:04,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:04,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:04,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:04,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:04,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:04,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:04,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:04,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:04,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:04,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 930 [2020-10-15 00:09:04,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:04,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:04,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:04,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:04,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:04,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:04,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:04,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:04,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:04,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:04,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:04,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:04,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1001 [2020-10-15 00:09:04,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:04,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:04,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:04,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:04,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:04,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:04,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:04,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:04,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:04,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:04,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:04,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:04,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1072 [2020-10-15 00:09:04,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:04,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:04,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:04,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:04,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:04,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:04,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:04,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:04,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:04,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:04,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:04,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:04,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1143 [2020-10-15 00:09:04,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:04,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:04,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:04,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:04,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:04,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:04,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:04,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:04,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:04,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:04,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:04,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:05,901 INFO L134 CoverageAnalysis]: Checked inductivity of 180134 backedges. 48 proven. 169576 refuted. 0 times theorem prover too weak. 10510 trivial. 0 not checked. [2020-10-15 00:09:05,901 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1333608199] [2020-10-15 00:09:05,901 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:09:05,901 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-15 00:09:05,901 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23241279] [2020-10-15 00:09:05,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-15 00:09:05,902 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:09:05,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-15 00:09:05,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=268, Unknown=0, NotChecked=0, Total=462 [2020-10-15 00:09:05,903 INFO L87 Difference]: Start difference. First operand 1640 states and 1853 transitions. Second operand 22 states. [2020-10-15 00:09:06,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:09:06,838 INFO L93 Difference]: Finished difference Result 2259 states and 2641 transitions. [2020-10-15 00:09:06,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-15 00:09:06,838 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 1218 [2020-10-15 00:09:06,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:09:06,846 INFO L225 Difference]: With dead ends: 2259 [2020-10-15 00:09:06,846 INFO L226 Difference]: Without dead ends: 1775 [2020-10-15 00:09:06,848 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=576, Invalid=1064, Unknown=0, NotChecked=0, Total=1640 [2020-10-15 00:09:06,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2020-10-15 00:09:06,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 1707. [2020-10-15 00:09:06,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1707 states. [2020-10-15 00:09:06,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 1923 transitions. [2020-10-15 00:09:06,941 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 1923 transitions. Word has length 1218 [2020-10-15 00:09:06,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:09:06,942 INFO L479 AbstractCegarLoop]: Abstraction has 1707 states and 1923 transitions. [2020-10-15 00:09:06,942 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-15 00:09:06,942 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 1923 transitions. [2020-10-15 00:09:06,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1290 [2020-10-15 00:09:06,953 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:09:06,953 INFO L422 BasicCegarLoop]: trace histogram [360, 360, 360, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:09:06,954 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2020-10-15 00:09:06,954 INFO L427 AbstractCegarLoop]: === Iteration 61 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:09:06,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:09:06,954 INFO L82 PathProgramCache]: Analyzing trace with hash -1184647816, now seen corresponding path program 17 times [2020-10-15 00:09:06,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:09:06,955 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2101146564] [2020-10-15 00:09:06,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:09:07,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:07,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:08,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:09,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:09,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:10,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:10,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:11,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:11,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:11,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:11,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:12,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:12,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1333 [2020-10-15 00:09:12,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 00:09:12,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-15 00:09:12,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:12,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:12,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-15 00:09:12,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:09:12,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1322 [2020-10-15 00:09:12,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:12,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:09:12,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:12,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:12,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:12,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:09:12,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:12,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:12,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:12,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:12,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:12,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:12,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:09:12,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:12,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:09:12,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:12,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:12,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:12,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:12,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:12,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:12,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:12,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:12,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:12,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:12,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:12,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:12,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 00:09:12,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:12,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:12,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:12,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:12,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:12,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:12,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:12,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:12,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:12,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:12,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:12,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:12,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-15 00:09:12,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:12,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:12,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:12,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:12,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:12,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:12,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:12,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:12,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:12,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:12,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:12,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:12,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-15 00:09:12,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:12,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:12,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:12,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:12,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:12,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:12,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:12,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:12,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:12,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:12,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:12,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:12,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2020-10-15 00:09:12,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:12,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:12,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:12,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:12,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:12,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:12,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:12,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:12,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:12,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:12,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:12,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:12,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2020-10-15 00:09:12,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:12,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:12,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:12,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:12,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:12,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:12,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:12,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:12,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:12,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:12,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:12,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:12,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2020-10-15 00:09:12,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:12,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:12,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:12,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:12,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:12,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:12,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:12,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:12,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:12,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:12,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:12,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:12,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-15 00:09:12,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:12,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:12,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:12,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:12,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:12,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:09:12,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:12,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:12,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:12,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:12,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:12,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:12,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2020-10-15 00:09:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:12,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:12,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:12,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:12,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:12,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:09:12,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:12,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:12,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:12,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:12,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:12,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:12,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2020-10-15 00:09:12,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:12,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:12,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:12,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:12,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:12,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:12,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:12,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:12,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:12,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:12,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:12,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:12,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 717 [2020-10-15 00:09:12,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:12,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:12,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:12,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:12,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:12,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:12,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:12,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:12,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:12,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:12,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:12,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:12,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 788 [2020-10-15 00:09:12,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:12,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:12,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:12,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:12,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:12,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:12,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:12,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:12,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:12,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:12,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:12,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:12,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 859 [2020-10-15 00:09:12,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:12,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:12,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:12,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:12,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:12,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:12,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:12,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:12,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:12,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:12,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:12,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:12,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 930 [2020-10-15 00:09:12,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:12,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:12,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:12,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:12,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:12,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:12,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:12,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:12,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:12,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:12,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:12,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:12,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1001 [2020-10-15 00:09:12,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:12,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:12,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:12,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:12,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:12,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 00:09:12,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:12,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:12,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:12,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:12,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:12,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:12,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1072 [2020-10-15 00:09:12,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:12,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:12,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:12,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:12,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:12,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:12,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:12,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:12,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:12,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:12,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:12,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:12,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1143 [2020-10-15 00:09:12,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:12,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:12,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:12,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:12,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:12,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:12,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:12,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:12,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:12,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:12,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:12,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:12,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1214 [2020-10-15 00:09:12,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:12,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:12,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:12,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:12,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:12,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:12,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:12,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:12,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:12,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:12,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:12,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:14,632 INFO L134 CoverageAnalysis]: Checked inductivity of 201989 backedges. 51 proven. 190774 refuted. 0 times theorem prover too weak. 11164 trivial. 0 not checked. [2020-10-15 00:09:14,633 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2101146564] [2020-10-15 00:09:14,633 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:09:14,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-15 00:09:14,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394958055] [2020-10-15 00:09:14,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-15 00:09:14,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:09:14,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-15 00:09:14,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=292, Unknown=0, NotChecked=0, Total=506 [2020-10-15 00:09:14,634 INFO L87 Difference]: Start difference. First operand 1707 states and 1923 transitions. Second operand 23 states. [2020-10-15 00:09:15,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:09:15,574 INFO L93 Difference]: Finished difference Result 2326 states and 2711 transitions. [2020-10-15 00:09:15,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-15 00:09:15,574 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 1289 [2020-10-15 00:09:15,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:09:15,581 INFO L225 Difference]: With dead ends: 2326 [2020-10-15 00:09:15,582 INFO L226 Difference]: Without dead ends: 1842 [2020-10-15 00:09:15,583 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=636, Invalid=1170, Unknown=0, NotChecked=0, Total=1806 [2020-10-15 00:09:15,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1842 states. [2020-10-15 00:09:15,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1842 to 1774. [2020-10-15 00:09:15,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1774 states. [2020-10-15 00:09:15,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1774 states to 1774 states and 1993 transitions. [2020-10-15 00:09:15,683 INFO L78 Accepts]: Start accepts. Automaton has 1774 states and 1993 transitions. Word has length 1289 [2020-10-15 00:09:15,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:09:15,683 INFO L479 AbstractCegarLoop]: Abstraction has 1774 states and 1993 transitions. [2020-10-15 00:09:15,683 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-15 00:09:15,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1774 states and 1993 transitions. [2020-10-15 00:09:15,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1361 [2020-10-15 00:09:15,695 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:09:15,695 INFO L422 BasicCegarLoop]: trace histogram [380, 380, 380, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:09:15,696 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2020-10-15 00:09:15,696 INFO L427 AbstractCegarLoop]: === Iteration 62 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:09:15,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:09:15,696 INFO L82 PathProgramCache]: Analyzing trace with hash -869930461, now seen corresponding path program 18 times [2020-10-15 00:09:15,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:09:15,696 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [476924734] [2020-10-15 00:09:15,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:09:15,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:16,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:19,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:20,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:20,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:21,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:21,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1406 [2020-10-15 00:09:21,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 00:09:21,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5070 [2020-10-15 00:09:21,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:21,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:21,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 00:09:21,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 00:09:21,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1395 [2020-10-15 00:09:21,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:21,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 00:09:21,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:21,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:21,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:21,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 00:09:21,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:21,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:21,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:21,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:21,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:21,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:21,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 00:09:21,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:21,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 00:09:21,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:21,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:21,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:21,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:21,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:21,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:21,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:21,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:21,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:21,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:21,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:21,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:21,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 00:09:21,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:21,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:21,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:21,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:21,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:21,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:21,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:21,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:21,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:21,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:21,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:21,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:21,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-15 00:09:21,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:21,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:21,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:21,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:21,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:21,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:21,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:21,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:21,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:21,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:21,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:21,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:21,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-15 00:09:21,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:21,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:21,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:21,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:21,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:21,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:21,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:21,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:21,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:21,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:21,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:21,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:21,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2020-10-15 00:09:21,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:21,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:21,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:21,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:21,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:21,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:21,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:21,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:21,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:21,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:21,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:21,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:21,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2020-10-15 00:09:21,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:21,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:21,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:21,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:21,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:21,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:21,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:21,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:21,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:21,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:21,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:21,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:21,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2020-10-15 00:09:21,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:21,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:21,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:21,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:21,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:21,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:21,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:21,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:21,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:21,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:21,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:21,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:21,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-15 00:09:21,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:21,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:21,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:21,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:21,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:21,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:21,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:21,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:21,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:21,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:21,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:21,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:21,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2020-10-15 00:09:21,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:21,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:21,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:21,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:21,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:21,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:21,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:21,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:21,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:21,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:21,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:21,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:21,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2020-10-15 00:09:21,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:21,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:21,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:21,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:21,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:21,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:21,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:21,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:21,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:21,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:21,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:21,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:21,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 717 [2020-10-15 00:09:21,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:21,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:21,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:21,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:21,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:21,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:21,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:21,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:21,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:21,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:21,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:21,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:21,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 788 [2020-10-15 00:09:21,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:21,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:21,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:21,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:21,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:21,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:21,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:21,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:21,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:21,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:21,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:21,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:21,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 859 [2020-10-15 00:09:21,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:21,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:21,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:21,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:21,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:21,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:21,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:21,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:21,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:21,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:21,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:21,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:21,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 930 [2020-10-15 00:09:21,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:21,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:21,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:21,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:21,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:21,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:21,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:21,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:21,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:21,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:21,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:21,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:21,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1001 [2020-10-15 00:09:21,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:21,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:21,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:21,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:21,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:21,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:21,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:21,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:21,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:21,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:21,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:21,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:21,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1072 [2020-10-15 00:09:21,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:21,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:21,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:21,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:21,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:21,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:21,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:21,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:21,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:21,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:21,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:21,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:21,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1143 [2020-10-15 00:09:21,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:21,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:21,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:21,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:21,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:21,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:21,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:21,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:21,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:21,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:21,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:21,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:21,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1214 [2020-10-15 00:09:21,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:21,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:21,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:21,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:21,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:21,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:21,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:21,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:21,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:21,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:21,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:21,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:21,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1285 [2020-10-15 00:09:21,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 00:09:21,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 00:09:21,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 00:09:21,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 00:09:21,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 00:09:21,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 00:09:21,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 00:09:21,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 00:09:21,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 00:09:21,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 00:09:21,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 00:09:21,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 00:09:23,691 INFO L134 CoverageAnalysis]: Checked inductivity of 225095 backedges. 54 proven. 213219 refuted. 0 times theorem prover too weak. 11822 trivial. 0 not checked. [2020-10-15 00:09:23,691 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [476924734] [2020-10-15 00:09:23,692 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 00:09:23,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-15 00:09:23,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713989372] [2020-10-15 00:09:23,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-15 00:09:23,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 00:09:23,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-15 00:09:23,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=318, Unknown=0, NotChecked=0, Total=552 [2020-10-15 00:09:23,695 INFO L87 Difference]: Start difference. First operand 1774 states and 1993 transitions. Second operand 24 states. [2020-10-15 00:09:24,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 00:09:24,785 INFO L93 Difference]: Finished difference Result 2460 states and 2890 transitions. [2020-10-15 00:09:24,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-15 00:09:24,786 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 1360 [2020-10-15 00:09:24,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 00:09:24,791 INFO L225 Difference]: With dead ends: 2460 [2020-10-15 00:09:24,791 INFO L226 Difference]: Without dead ends: 1976 [2020-10-15 00:09:24,793 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=721, Invalid=1349, Unknown=0, NotChecked=0, Total=2070 [2020-10-15 00:09:24,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1976 states. [2020-10-15 00:09:24,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1976 to 1841. [2020-10-15 00:09:24,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1841 states. [2020-10-15 00:09:24,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1841 states to 1841 states and 2063 transitions. [2020-10-15 00:09:24,889 INFO L78 Accepts]: Start accepts. Automaton has 1841 states and 2063 transitions. Word has length 1360 [2020-10-15 00:09:24,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 00:09:24,890 INFO L479 AbstractCegarLoop]: Abstraction has 1841 states and 2063 transitions. [2020-10-15 00:09:24,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-15 00:09:24,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1841 states and 2063 transitions. [2020-10-15 00:09:24,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1432 [2020-10-15 00:09:24,903 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:09:24,904 INFO L422 BasicCegarLoop]: trace histogram [400, 400, 400, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:09:24,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2020-10-15 00:09:24,904 INFO L427 AbstractCegarLoop]: === Iteration 63 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:09:24,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:09:24,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1077410024, now seen corresponding path program 19 times [2020-10-15 00:09:24,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:09:24,905 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2062075348] [2020-10-15 00:09:24,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:09:25,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 00:09:25,273 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-15 00:09:25,273 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 00:09:25,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2020-10-15 00:09:25,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 12:09:25 BoogieIcfgContainer [2020-10-15 00:09:25,396 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 00:09:25,399 INFO L168 Benchmark]: Toolchain (without parser) took 217014.89 ms. Allocated memory was 147.3 MB in the beginning and 2.7 GB in the end (delta: 2.6 GB). Free memory was 102.0 MB in the beginning and 2.5 GB in the end (delta: -2.4 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2020-10-15 00:09:25,399 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 147.3 MB. Free memory was 120.6 MB in the beginning and 120.2 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. [2020-10-15 00:09:25,399 INFO L168 Benchmark]: CACSL2BoogieTranslator took 344.15 ms. Allocated memory is still 147.3 MB. Free memory was 102.0 MB in the beginning and 92.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-10-15 00:09:25,400 INFO L168 Benchmark]: Boogie Preprocessor took 118.20 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 92.1 MB in the beginning and 182.6 MB in the end (delta: -90.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-10-15 00:09:25,400 INFO L168 Benchmark]: RCFGBuilder took 298.81 ms. Allocated memory is still 203.9 MB. Free memory was 182.6 MB in the beginning and 166.8 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. [2020-10-15 00:09:25,400 INFO L168 Benchmark]: TraceAbstraction took 216249.00 ms. Allocated memory was 203.9 MB in the beginning and 2.7 GB in the end (delta: 2.5 GB). Free memory was 166.8 MB in the beginning and 2.5 GB in the end (delta: -2.3 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2020-10-15 00:09:25,402 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 147.3 MB. Free memory was 120.6 MB in the beginning and 120.2 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 344.15 ms. Allocated memory is still 147.3 MB. Free memory was 102.0 MB in the beginning and 92.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.20 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 92.1 MB in the beginning and 182.6 MB in the end (delta: -90.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 298.81 ms. Allocated memory is still 203.9 MB. Free memory was 182.6 MB in the beginning and 166.8 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 216249.00 ms. Allocated memory was 203.9 MB in the beginning and 2.7 GB in the end (delta: 2.5 GB). Free memory was 166.8 MB in the beginning and 2.5 GB in the end (delta: -2.3 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L7] int last ; [L16] int SIZE = 20; [L18] last = __VERIFIER_nondet_int() [L19] CALL assume_abort_if_not(last > 0) [L4] COND FALSE !(!cond) [L19] RET assume_abort_if_not(last > 0) [L20] int a=0,b=0,c=0,st=0,d=0; [L21] COND TRUE 1 [L22] st=1 [L23] c=0 [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND FALSE !(c=SIZE [L33] d++ [L35] COND FALSE !(d == SIZE) [L40] CALL __VERIFIER_assert(a==b && c==SIZE) [L9] COND FALSE !(!(cond)) [L40] RET __VERIFIER_assert(a==b && c==SIZE) [L21] COND TRUE 1 [L22] st=1 [L23] c=0 [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND FALSE !(c=SIZE [L33] d++ [L35] COND FALSE !(d == SIZE) [L40] CALL __VERIFIER_assert(a==b && c==SIZE) [L9] COND FALSE !(!(cond)) [L40] RET __VERIFIER_assert(a==b && c==SIZE) [L21] COND TRUE 1 [L22] st=1 [L23] c=0 [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND FALSE !(c=SIZE [L33] d++ [L35] COND FALSE !(d == SIZE) [L40] CALL __VERIFIER_assert(a==b && c==SIZE) [L9] COND FALSE !(!(cond)) [L40] RET __VERIFIER_assert(a==b && c==SIZE) [L21] COND TRUE 1 [L22] st=1 [L23] c=0 [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND FALSE !(c=SIZE [L33] d++ [L35] COND FALSE !(d == SIZE) [L40] CALL __VERIFIER_assert(a==b && c==SIZE) [L9] COND FALSE !(!(cond)) [L40] RET __VERIFIER_assert(a==b && c==SIZE) [L21] COND TRUE 1 [L22] st=1 [L23] c=0 [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND FALSE !(c=SIZE [L33] d++ [L35] COND FALSE !(d == SIZE) [L40] CALL __VERIFIER_assert(a==b && c==SIZE) [L9] COND FALSE !(!(cond)) [L40] RET __VERIFIER_assert(a==b && c==SIZE) [L21] COND TRUE 1 [L22] st=1 [L23] c=0 [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND FALSE !(c=SIZE [L33] d++ [L35] COND FALSE !(d == SIZE) [L40] CALL __VERIFIER_assert(a==b && c==SIZE) [L9] COND FALSE !(!(cond)) [L40] RET __VERIFIER_assert(a==b && c==SIZE) [L21] COND TRUE 1 [L22] st=1 [L23] c=0 [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND FALSE !(c=SIZE [L33] d++ [L35] COND FALSE !(d == SIZE) [L40] CALL __VERIFIER_assert(a==b && c==SIZE) [L9] COND FALSE !(!(cond)) [L40] RET __VERIFIER_assert(a==b && c==SIZE) [L21] COND TRUE 1 [L22] st=1 [L23] c=0 [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND FALSE !(c=SIZE [L33] d++ [L35] COND FALSE !(d == SIZE) [L40] CALL __VERIFIER_assert(a==b && c==SIZE) [L9] COND FALSE !(!(cond)) [L40] RET __VERIFIER_assert(a==b && c==SIZE) [L21] COND TRUE 1 [L22] st=1 [L23] c=0 [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND FALSE !(c=SIZE [L33] d++ [L35] COND FALSE !(d == SIZE) [L40] CALL __VERIFIER_assert(a==b && c==SIZE) [L9] COND FALSE !(!(cond)) [L40] RET __VERIFIER_assert(a==b && c==SIZE) [L21] COND TRUE 1 [L22] st=1 [L23] c=0 [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND FALSE !(c=SIZE [L33] d++ [L35] COND FALSE !(d == SIZE) [L40] CALL __VERIFIER_assert(a==b && c==SIZE) [L9] COND FALSE !(!(cond)) [L40] RET __VERIFIER_assert(a==b && c==SIZE) [L21] COND TRUE 1 [L22] st=1 [L23] c=0 [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND FALSE !(c=SIZE [L33] d++ [L35] COND FALSE !(d == SIZE) [L40] CALL __VERIFIER_assert(a==b && c==SIZE) [L9] COND FALSE !(!(cond)) [L40] RET __VERIFIER_assert(a==b && c==SIZE) [L21] COND TRUE 1 [L22] st=1 [L23] c=0 [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND FALSE !(c=SIZE [L33] d++ [L35] COND FALSE !(d == SIZE) [L40] CALL __VERIFIER_assert(a==b && c==SIZE) [L9] COND FALSE !(!(cond)) [L40] RET __VERIFIER_assert(a==b && c==SIZE) [L21] COND TRUE 1 [L22] st=1 [L23] c=0 [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND FALSE !(c=SIZE [L33] d++ [L35] COND FALSE !(d == SIZE) [L40] CALL __VERIFIER_assert(a==b && c==SIZE) [L9] COND FALSE !(!(cond)) [L40] RET __VERIFIER_assert(a==b && c==SIZE) [L21] COND TRUE 1 [L22] st=1 [L23] c=0 [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND FALSE !(c=SIZE [L33] d++ [L35] COND FALSE !(d == SIZE) [L40] CALL __VERIFIER_assert(a==b && c==SIZE) [L9] COND FALSE !(!(cond)) [L40] RET __VERIFIER_assert(a==b && c==SIZE) [L21] COND TRUE 1 [L22] st=1 [L23] c=0 [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND FALSE !(c=SIZE [L33] d++ [L35] COND FALSE !(d == SIZE) [L40] CALL __VERIFIER_assert(a==b && c==SIZE) [L9] COND FALSE !(!(cond)) [L40] RET __VERIFIER_assert(a==b && c==SIZE) [L21] COND TRUE 1 [L22] st=1 [L23] c=0 [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND FALSE !(c=SIZE [L33] d++ [L35] COND FALSE !(d == SIZE) [L40] CALL __VERIFIER_assert(a==b && c==SIZE) [L9] COND FALSE !(!(cond)) [L40] RET __VERIFIER_assert(a==b && c==SIZE) [L21] COND TRUE 1 [L22] st=1 [L23] c=0 [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND FALSE !(c=SIZE [L33] d++ [L35] COND FALSE !(d == SIZE) [L40] CALL __VERIFIER_assert(a==b && c==SIZE) [L9] COND FALSE !(!(cond)) [L40] RET __VERIFIER_assert(a==b && c==SIZE) [L21] COND TRUE 1 [L22] st=1 [L23] c=0 [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND FALSE !(c=SIZE [L33] d++ [L35] COND FALSE !(d == SIZE) [L40] CALL __VERIFIER_assert(a==b && c==SIZE) [L9] COND FALSE !(!(cond)) [L40] RET __VERIFIER_assert(a==b && c==SIZE) [L21] COND TRUE 1 [L22] st=1 [L23] c=0 [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND FALSE !(c=SIZE [L33] d++ [L35] COND FALSE !(d == SIZE) [L40] CALL __VERIFIER_assert(a==b && c==SIZE) [L9] COND FALSE !(!(cond)) [L40] RET __VERIFIER_assert(a==b && c==SIZE) [L21] COND TRUE 1 [L22] st=1 [L23] c=0 [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND TRUE c=last) [L23] c++ [L23] COND FALSE !(c=SIZE [L33] d++ [L35] COND TRUE d == SIZE [L36] a = 0 [L37] b = 1 [L40] CALL __VERIFIER_assert(a==b && c==SIZE) [L9] COND TRUE !(cond) [L10] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 216.0s, OverallIterations: 63, TraceHistogramMax: 400, AutomataDifference: 41.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1533 SDtfs, 10190 SDslu, 2319 SDs, 0 SdLazy, 18236 SolverSat, 2510 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2593 GetRequests, 652 SyntacticMatches, 1 SemanticMatches, 1940 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20645 ImplicationChecksByTransitivity, 29.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1841occurred in iteration=62, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.4s AutomataMinimizationTime, 62 MinimizatonAttempts, 3270 StatesRemovedByMinimization, 61 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 3.5s SatisfiabilityAnalysisTime, 152.2s InterpolantComputationTime, 17443 NumberOfCodeBlocks, 17443 NumberOfCodeBlocksAsserted, 63 NumberOfCheckSat, 15950 ConstructedInterpolants, 0 QuantifiedInterpolants, 61195769 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 62 InterpolantComputations, 5 PerfectInterpolantSequences, 117757/1547763 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...