/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=BIGGEST --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/array-examples/standard_copy1_ground-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 09:47:12,192 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 09:47:12,195 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 09:47:12,241 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 09:47:12,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 09:47:12,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 09:47:12,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 09:47:12,255 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 09:47:12,258 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 09:47:12,261 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 09:47:12,262 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 09:47:12,263 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 09:47:12,263 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 09:47:12,265 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 09:47:12,266 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 09:47:12,267 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 09:47:12,271 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 09:47:12,272 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 09:47:12,273 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 09:47:12,279 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 09:47:12,281 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 09:47:12,284 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 09:47:12,286 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 09:47:12,286 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 09:47:12,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 09:47:12,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 09:47:12,300 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 09:47:12,301 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 09:47:12,302 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 09:47:12,303 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 09:47:12,304 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 09:47:12,304 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 09:47:12,305 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 09:47:12,306 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 09:47:12,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 09:47:12,307 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 09:47:12,308 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 09:47:12,308 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 09:47:12,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 09:47:12,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 09:47:12,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 09:47:12,311 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 [2020-10-12 09:47:12,353 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 09:47:12,353 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 09:47:12,356 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 09:47:12,356 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 09:47:12,357 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 09:47:12,357 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 09:47:12,357 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 09:47:12,357 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 09:47:12,358 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 09:47:12,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 09:47:12,360 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 09:47:12,360 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 09:47:12,360 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 09:47:12,361 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 09:47:12,361 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 09:47:12,361 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 09:47:12,362 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 09:47:12,362 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 09:47:12,362 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 09:47:12,362 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 09:47:12,362 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 09:47:12,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 09:47:12,363 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 09:47:12,363 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 09:47:12,363 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 09:47:12,363 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 09:47:12,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 09:47:12,364 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 09:47:12,364 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 09:47:12,364 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 09:47:12,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 09:47:12,669 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 09:47:12,676 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 09:47:12,680 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 09:47:12,680 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 09:47:12,681 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_copy1_ground-1.i [2020-10-12 09:47:12,757 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d0218bd55/7c14f192ec7c41bbbd4c9f269fb04e63/FLAG33139be45 [2020-10-12 09:47:13,251 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 09:47:13,252 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-examples/standard_copy1_ground-1.i [2020-10-12 09:47:13,258 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d0218bd55/7c14f192ec7c41bbbd4c9f269fb04e63/FLAG33139be45 [2020-10-12 09:47:13,638 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d0218bd55/7c14f192ec7c41bbbd4c9f269fb04e63 [2020-10-12 09:47:13,648 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 09:47:13,649 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 09:47:13,650 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 09:47:13,651 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 09:47:13,654 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 09:47:13,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 09:47:13" (1/1) ... [2020-10-12 09:47:13,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fbadd11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:47:13, skipping insertion in model container [2020-10-12 09:47:13,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 09:47:13" (1/1) ... [2020-10-12 09:47:13,664 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 09:47:13,679 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 09:47:13,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 09:47:13,864 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 09:47:13,883 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 09:47:13,900 INFO L208 MainTranslator]: Completed translation [2020-10-12 09:47:13,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:47:13 WrapperNode [2020-10-12 09:47:13,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 09:47:13,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 09:47:13,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 09:47:13,902 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 09:47:14,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:47:13" (1/1) ... [2020-10-12 09:47:14,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:47:13" (1/1) ... [2020-10-12 09:47:14,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:47:13" (1/1) ... [2020-10-12 09:47:14,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:47:13" (1/1) ... [2020-10-12 09:47:14,024 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:47:13" (1/1) ... [2020-10-12 09:47:14,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:47:13" (1/1) ... [2020-10-12 09:47:14,031 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:47:13" (1/1) ... [2020-10-12 09:47:14,033 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 09:47:14,034 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 09:47:14,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 09:47:14,034 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 09:47:14,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:47:13" (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 [2020-10-12 09:47:14,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 09:47:14,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 09:47:14,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-12 09:47:14,102 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 09:47:14,102 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 09:47:14,102 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-12 09:47:14,102 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 09:47:14,102 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 09:47:14,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 09:47:14,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 09:47:14,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 09:47:14,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 09:47:14,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 09:47:14,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 09:47:14,333 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 09:47:14,333 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-12 09:47:14,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:47:14 BoogieIcfgContainer [2020-10-12 09:47:14,338 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 09:47:14,340 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 09:47:14,340 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 09:47:14,345 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 09:47:14,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 09:47:13" (1/3) ... [2020-10-12 09:47:14,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56c6d06c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 09:47:14, skipping insertion in model container [2020-10-12 09:47:14,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:47:13" (2/3) ... [2020-10-12 09:47:14,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56c6d06c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 09:47:14, skipping insertion in model container [2020-10-12 09:47:14,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:47:14" (3/3) ... [2020-10-12 09:47:14,349 INFO L109 eAbstractionObserver]: Analyzing ICFG standard_copy1_ground-1.i [2020-10-12 09:47:14,360 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 09:47:14,368 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 09:47:14,385 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 09:47:14,412 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 09:47:14,413 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 09:47:14,413 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 09:47:14,413 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 09:47:14,413 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 09:47:14,413 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 09:47:14,413 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 09:47:14,413 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 09:47:14,435 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-10-12 09:47:14,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-12 09:47:14,441 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:47:14,442 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:47:14,443 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:47:14,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:47:14,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1778002988, now seen corresponding path program 1 times [2020-10-12 09:47:14,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:47:14,456 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1239426386] [2020-10-12 09:47:14,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:47:14,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:14,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:14,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:14,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:14,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-12 09:47:14,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:47:14,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-12 09:47:14,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:14,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:14,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:47:14,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 09:47:14,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 09:47:14,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:47:14,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:14,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:14,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:14,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:47:14,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:14,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 09:47:14,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:14,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:14,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:14,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:14,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:47:14,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 09:47:14,855 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1239426386] [2020-10-12 09:47:14,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 09:47:14,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-12 09:47:14,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988856331] [2020-10-12 09:47:14,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 09:47:14,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:47:14,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 09:47:14,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 09:47:14,893 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 4 states. [2020-10-12 09:47:15,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:47:15,123 INFO L93 Difference]: Finished difference Result 48 states and 61 transitions. [2020-10-12 09:47:15,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-12 09:47:15,125 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-12 09:47:15,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:47:15,135 INFO L225 Difference]: With dead ends: 48 [2020-10-12 09:47:15,136 INFO L226 Difference]: Without dead ends: 24 [2020-10-12 09:47:15,139 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 09:47:15,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-12 09:47:15,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2020-10-12 09:47:15,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-12 09:47:15,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2020-10-12 09:47:15,183 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 15 [2020-10-12 09:47:15,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:47:15,184 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2020-10-12 09:47:15,184 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 09:47:15,184 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2020-10-12 09:47:15,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-12 09:47:15,185 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:47:15,185 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:47:15,186 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 09:47:15,186 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:47:15,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:47:15,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1485613060, now seen corresponding path program 1 times [2020-10-12 09:47:15,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:47:15,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1274341826] [2020-10-12 09:47:15,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:47:15,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:15,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:15,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:15,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:15,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:15,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 09:47:15,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:47:15,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 591 [2020-10-12 09:47:15,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:15,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 09:47:15,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:47:15,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 09:47:15,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:47:15,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:47:15,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:16,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:16,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:16,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:47:16,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:16,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:47:16,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:16,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:16,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:16,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:16,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 09:47:16,015 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 09:47:16,019 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1274341826] [2020-10-12 09:47:16,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:47:16,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 09:47:16,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053065289] [2020-10-12 09:47:16,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 09:47:16,024 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:47:16,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 09:47:16,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-12 09:47:16,025 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 9 states. [2020-10-12 09:47:16,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:47:16,333 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2020-10-12 09:47:16,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 09:47:16,334 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2020-10-12 09:47:16,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:47:16,337 INFO L225 Difference]: With dead ends: 40 [2020-10-12 09:47:16,337 INFO L226 Difference]: Without dead ends: 38 [2020-10-12 09:47:16,338 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2020-10-12 09:47:16,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-12 09:47:16,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 32. [2020-10-12 09:47:16,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-12 09:47:16,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2020-10-12 09:47:16,374 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 17 [2020-10-12 09:47:16,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:47:16,374 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2020-10-12 09:47:16,374 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 09:47:16,375 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2020-10-12 09:47:16,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-12 09:47:16,376 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:47:16,376 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:47:16,376 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 09:47:16,376 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:47:16,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:47:16,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1774960226, now seen corresponding path program 2 times [2020-10-12 09:47:16,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:47:16,378 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1553524961] [2020-10-12 09:47:16,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:47:16,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:16,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:16,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:16,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:16,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:16,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 09:47:16,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:47:16,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 485 [2020-10-12 09:47:16,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:16,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 09:47:16,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:47:16,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 09:47:16,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:47:17,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:47:17,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:17,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:17,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:17,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:47:17,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:17,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:47:17,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:17,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:17,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:17,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:17,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:17,286 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-12 09:47:17,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1553524961] [2020-10-12 09:47:17,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:47:17,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 09:47:17,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005861989] [2020-10-12 09:47:17,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 09:47:17,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:47:17,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 09:47:17,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-12 09:47:17,291 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 10 states. [2020-10-12 09:47:17,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:47:17,617 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2020-10-12 09:47:17,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 09:47:17,618 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 19 [2020-10-12 09:47:17,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:47:17,621 INFO L225 Difference]: With dead ends: 42 [2020-10-12 09:47:17,622 INFO L226 Difference]: Without dead ends: 40 [2020-10-12 09:47:17,623 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2020-10-12 09:47:17,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-12 09:47:17,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 29. [2020-10-12 09:47:17,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-12 09:47:17,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2020-10-12 09:47:17,636 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 19 [2020-10-12 09:47:17,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:47:17,636 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2020-10-12 09:47:17,636 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 09:47:17,637 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2020-10-12 09:47:17,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-12 09:47:17,638 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:47:17,638 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] [2020-10-12 09:47:17,639 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 09:47:17,639 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:47:17,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:47:17,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1392579899, now seen corresponding path program 1 times [2020-10-12 09:47:17,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:47:17,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1398026111] [2020-10-12 09:47:17,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:47:17,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:17,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:17,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:17,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:17,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-12 09:47:17,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:47:17,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-12 09:47:17,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:17,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 09:47:17,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:47:17,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 09:47:17,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:17,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:47:17,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:17,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:17,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:17,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:47:17,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:17,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 09:47:17,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:17,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:17,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:17,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:17,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:17,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 09:47:17,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:17,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:17,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:17,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:17,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:17,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:47:17,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:17,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:17,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:47:17,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:17,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:17,800 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-12 09:47:17,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1398026111] [2020-10-12 09:47:17,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:47:17,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 09:47:17,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12159561] [2020-10-12 09:47:17,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 09:47:17,808 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:47:17,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 09:47:17,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 09:47:17,809 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 5 states. [2020-10-12 09:47:17,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:47:17,869 INFO L93 Difference]: Finished difference Result 49 states and 52 transitions. [2020-10-12 09:47:17,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 09:47:17,870 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-10-12 09:47:17,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:47:17,871 INFO L225 Difference]: With dead ends: 49 [2020-10-12 09:47:17,871 INFO L226 Difference]: Without dead ends: 32 [2020-10-12 09:47:17,872 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 09:47:17,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-12 09:47:17,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2020-10-12 09:47:17,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-12 09:47:17,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2020-10-12 09:47:17,879 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 25 [2020-10-12 09:47:17,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:47:17,879 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2020-10-12 09:47:17,880 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 09:47:17,880 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2020-10-12 09:47:17,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-12 09:47:17,881 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:47:17,881 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:47:17,881 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 09:47:17,881 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:47:17,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:47:17,882 INFO L82 PathProgramCache]: Analyzing trace with hash 132836761, now seen corresponding path program 2 times [2020-10-12 09:47:17,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:47:17,882 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1068788058] [2020-10-12 09:47:17,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:47:17,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:17,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:17,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:17,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:18,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:18,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 09:47:18,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:47:18,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 350 [2020-10-12 09:47:18,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:18,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 09:47:18,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:47:18,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 09:47:18,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:18,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:47:18,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:18,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:18,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:18,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:47:18,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:18,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:18,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:18,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:18,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:18,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:18,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:18,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 09:47:18,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:18,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:18,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:18,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:18,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:18,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 09:47:18,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:18,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:18,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:18,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:18,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:18,418 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 09:47:18,419 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1068788058] [2020-10-12 09:47:18,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:47:18,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 09:47:18,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189332472] [2020-10-12 09:47:18,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 09:47:18,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:47:18,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 09:47:18,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-10-12 09:47:18,421 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand 11 states. [2020-10-12 09:47:18,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:47:18,715 INFO L93 Difference]: Finished difference Result 52 states and 57 transitions. [2020-10-12 09:47:18,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 09:47:18,716 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-12 09:47:18,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:47:18,717 INFO L225 Difference]: With dead ends: 52 [2020-10-12 09:47:18,717 INFO L226 Difference]: Without dead ends: 50 [2020-10-12 09:47:18,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2020-10-12 09:47:18,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-12 09:47:18,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 44. [2020-10-12 09:47:18,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-12 09:47:18,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2020-10-12 09:47:18,729 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 27 [2020-10-12 09:47:18,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:47:18,729 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2020-10-12 09:47:18,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 09:47:18,729 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2020-10-12 09:47:18,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-12 09:47:18,731 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:47:18,732 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:47:18,732 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 09:47:18,732 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:47:18,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:47:18,733 INFO L82 PathProgramCache]: Analyzing trace with hash 700458615, now seen corresponding path program 3 times [2020-10-12 09:47:18,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:47:18,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [382783840] [2020-10-12 09:47:18,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:47:18,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:18,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:18,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:18,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:19,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:19,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-12 09:47:19,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:47:19,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 403 [2020-10-12 09:47:19,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:19,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 09:47:19,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:47:19,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-12 09:47:19,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:19,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:47:19,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:19,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:19,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:19,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:47:19,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:19,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:47:19,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:19,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:19,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:19,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:19,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:19,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-12 09:47:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:19,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:19,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:19,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:19,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:19,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 09:47:19,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:19,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:19,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:19,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:19,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:19,439 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-12 09:47:19,440 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [382783840] [2020-10-12 09:47:19,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:47:19,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 09:47:19,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431460066] [2020-10-12 09:47:19,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 09:47:19,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:47:19,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 09:47:19,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-12 09:47:19,443 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand 12 states. [2020-10-12 09:47:19,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:47:19,774 INFO L93 Difference]: Finished difference Result 56 states and 60 transitions. [2020-10-12 09:47:19,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 09:47:19,775 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 29 [2020-10-12 09:47:19,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:47:19,777 INFO L225 Difference]: With dead ends: 56 [2020-10-12 09:47:19,777 INFO L226 Difference]: Without dead ends: 54 [2020-10-12 09:47:19,778 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2020-10-12 09:47:19,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-12 09:47:19,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 39. [2020-10-12 09:47:19,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-12 09:47:19,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2020-10-12 09:47:19,796 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 29 [2020-10-12 09:47:19,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:47:19,797 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2020-10-12 09:47:19,797 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 09:47:19,797 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2020-10-12 09:47:19,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-12 09:47:19,801 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:47:19,802 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:47:19,802 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 09:47:19,802 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:47:19,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:47:19,803 INFO L82 PathProgramCache]: Analyzing trace with hash -2111900208, now seen corresponding path program 4 times [2020-10-12 09:47:19,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:47:19,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [392815606] [2020-10-12 09:47:19,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:47:19,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:19,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:19,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:19,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:19,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-12 09:47:19,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:47:19,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-12 09:47:19,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:19,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 09:47:19,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:47:19,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:19,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:19,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:47:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:20,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:20,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:20,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:47:20,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:20,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:20,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:20,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:20,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:20,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:20,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:20,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 09:47:20,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:20,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:20,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:20,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:20,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:20,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:20,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:20,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:20,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:47:20,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:20,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:20,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-12 09:47:20,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:20,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:20,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:20,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:20,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:20,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:47:20,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:20,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:20,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:47:20,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:20,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:47:20,020 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-12 09:47:20,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [392815606] [2020-10-12 09:47:20,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:47:20,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 09:47:20,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673089968] [2020-10-12 09:47:20,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 09:47:20,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:47:20,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 09:47:20,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 09:47:20,023 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand 6 states. [2020-10-12 09:47:20,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:47:20,086 INFO L93 Difference]: Finished difference Result 67 states and 70 transitions. [2020-10-12 09:47:20,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 09:47:20,087 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-10-12 09:47:20,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:47:20,088 INFO L225 Difference]: With dead ends: 67 [2020-10-12 09:47:20,089 INFO L226 Difference]: Without dead ends: 42 [2020-10-12 09:47:20,090 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 09:47:20,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-12 09:47:20,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2020-10-12 09:47:20,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-12 09:47:20,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2020-10-12 09:47:20,104 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 35 [2020-10-12 09:47:20,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:47:20,105 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2020-10-12 09:47:20,105 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 09:47:20,105 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2020-10-12 09:47:20,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-12 09:47:20,109 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:47:20,109 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:47:20,110 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 09:47:20,110 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:47:20,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:47:20,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1969983314, now seen corresponding path program 5 times [2020-10-12 09:47:20,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:47:20,112 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1719207283] [2020-10-12 09:47:20,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:47:20,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:20,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:20,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:20,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:21,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:21,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-12 09:47:21,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:47:21,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 887 [2020-10-12 09:47:21,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:21,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 09:47:21,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:47:21,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 09:47:21,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:21,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:47:21,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:21,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:21,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:21,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:47:21,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:21,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:21,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:21,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:21,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:21,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:21,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:21,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-12 09:47:21,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:21,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:21,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:21,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:21,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:21,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:47:21,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:21,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:21,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:21,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:21,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:21,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-12 09:47:21,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:21,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:21,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:21,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:21,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:21,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:47:21,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:21,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:21,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:21,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:21,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:21,265 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 09:47:21,265 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1719207283] [2020-10-12 09:47:21,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:47:21,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 09:47:21,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115900717] [2020-10-12 09:47:21,266 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 09:47:21,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:47:21,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 09:47:21,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-10-12 09:47:21,267 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand 13 states. [2020-10-12 09:47:21,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:47:21,623 INFO L93 Difference]: Finished difference Result 66 states and 72 transitions. [2020-10-12 09:47:21,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 09:47:21,624 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 37 [2020-10-12 09:47:21,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:47:21,625 INFO L225 Difference]: With dead ends: 66 [2020-10-12 09:47:21,625 INFO L226 Difference]: Without dead ends: 64 [2020-10-12 09:47:21,626 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2020-10-12 09:47:21,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-10-12 09:47:21,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 58. [2020-10-12 09:47:21,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-10-12 09:47:21,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 63 transitions. [2020-10-12 09:47:21,637 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 63 transitions. Word has length 37 [2020-10-12 09:47:21,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:47:21,637 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 63 transitions. [2020-10-12 09:47:21,637 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 09:47:21,637 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 63 transitions. [2020-10-12 09:47:21,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-12 09:47:21,638 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:47:21,639 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:47:21,639 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 09:47:21,639 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:47:21,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:47:21,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1268165644, now seen corresponding path program 6 times [2020-10-12 09:47:21,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:47:21,640 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [20222933] [2020-10-12 09:47:21,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:47:21,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:21,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:21,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:21,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:22,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:22,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 09:47:22,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:47:22,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 662 [2020-10-12 09:47:22,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:22,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 09:47:22,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:47:22,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-12 09:47:22,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:22,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:47:22,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:22,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:22,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:22,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:47:22,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:22,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:47:22,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:22,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:22,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:22,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:22,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:47:22,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 09:47:22,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:22,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:22,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:22,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:22,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:22,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 09:47:22,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:22,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:22,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:22,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:22,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:47:22,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 09:47:22,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:22,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:22,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:22,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:22,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:22,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 09:47:22,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:22,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:22,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:22,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:22,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:47:22,650 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 22 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-12 09:47:22,650 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [20222933] [2020-10-12 09:47:22,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:47:22,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-12 09:47:22,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128555490] [2020-10-12 09:47:22,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 09:47:22,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:47:22,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 09:47:22,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-12 09:47:22,653 INFO L87 Difference]: Start difference. First operand 58 states and 63 transitions. Second operand 14 states. [2020-10-12 09:47:23,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:47:23,099 INFO L93 Difference]: Finished difference Result 70 states and 75 transitions. [2020-10-12 09:47:23,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 09:47:23,100 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 39 [2020-10-12 09:47:23,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:47:23,101 INFO L225 Difference]: With dead ends: 70 [2020-10-12 09:47:23,101 INFO L226 Difference]: Without dead ends: 68 [2020-10-12 09:47:23,102 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2020-10-12 09:47:23,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-12 09:47:23,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 49. [2020-10-12 09:47:23,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-12 09:47:23,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 51 transitions. [2020-10-12 09:47:23,110 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 51 transitions. Word has length 39 [2020-10-12 09:47:23,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:47:23,111 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 51 transitions. [2020-10-12 09:47:23,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 09:47:23,111 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2020-10-12 09:47:23,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-12 09:47:23,112 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:47:23,112 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:47:23,112 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 09:47:23,112 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:47:23,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:47:23,113 INFO L82 PathProgramCache]: Analyzing trace with hash 2050135013, now seen corresponding path program 7 times [2020-10-12 09:47:23,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:47:23,113 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1246967642] [2020-10-12 09:47:23,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:47:23,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:23,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:23,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:23,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:23,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 09:47:23,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:47:23,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-10-12 09:47:23,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:23,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 09:47:23,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:47:23,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 09:47:23,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:23,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:47:23,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:23,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:23,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:23,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:47:23,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:23,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:47:23,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:23,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:23,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:23,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:23,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:23,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-12 09:47:23,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:23,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:23,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:23,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:23,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:23,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:23,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:23,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:23,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:47:23,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:23,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:23,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-12 09:47:23,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:23,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:23,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:23,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:23,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:23,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:23,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:23,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:23,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:47:23,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:23,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:23,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 09:47:23,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:23,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:23,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:23,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:23,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:23,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:23,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:23,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:23,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:47:23,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:23,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:23,398 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-12 09:47:23,398 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1246967642] [2020-10-12 09:47:23,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:47:23,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 09:47:23,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441540793] [2020-10-12 09:47:23,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 09:47:23,401 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:47:23,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 09:47:23,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-12 09:47:23,401 INFO L87 Difference]: Start difference. First operand 49 states and 51 transitions. Second operand 7 states. [2020-10-12 09:47:23,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:47:23,472 INFO L93 Difference]: Finished difference Result 85 states and 88 transitions. [2020-10-12 09:47:23,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 09:47:23,473 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2020-10-12 09:47:23,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:47:23,474 INFO L225 Difference]: With dead ends: 85 [2020-10-12 09:47:23,474 INFO L226 Difference]: Without dead ends: 52 [2020-10-12 09:47:23,474 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-12 09:47:23,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-12 09:47:23,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51. [2020-10-12 09:47:23,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-12 09:47:23,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 53 transitions. [2020-10-12 09:47:23,487 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 53 transitions. Word has length 45 [2020-10-12 09:47:23,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:47:23,490 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 53 transitions. [2020-10-12 09:47:23,491 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 09:47:23,491 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2020-10-12 09:47:23,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-12 09:47:23,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:47:23,494 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:47:23,494 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 09:47:23,495 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:47:23,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:47:23,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1340772675, now seen corresponding path program 8 times [2020-10-12 09:47:23,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:47:23,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1511967256] [2020-10-12 09:47:23,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:47:23,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:23,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:23,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:23,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:24,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:24,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-12 09:47:24,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:47:24,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 756 [2020-10-12 09:47:24,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:24,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 09:47:24,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:47:24,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-12 09:47:24,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:24,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:47:24,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:24,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:24,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:24,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:47:24,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:24,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:47:24,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:24,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:24,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:24,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:24,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:24,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 09:47:24,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:24,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:24,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:24,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:24,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:24,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:47:24,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:24,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:24,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:24,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:24,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:24,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 09:47:24,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:24,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:24,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:24,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:24,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:24,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 09:47:24,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:24,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:24,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:24,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:24,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:47:24,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-12 09:47:24,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:24,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:24,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:24,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:24,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:24,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:47:24,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:24,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:24,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:24,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:24,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:24,577 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 6 proven. 34 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-12 09:47:24,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1511967256] [2020-10-12 09:47:24,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:47:24,578 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-12 09:47:24,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302987705] [2020-10-12 09:47:24,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 09:47:24,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:47:24,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 09:47:24,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-10-12 09:47:24,581 INFO L87 Difference]: Start difference. First operand 51 states and 53 transitions. Second operand 15 states. [2020-10-12 09:47:25,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:47:25,083 INFO L93 Difference]: Finished difference Result 80 states and 87 transitions. [2020-10-12 09:47:25,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-12 09:47:25,084 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 47 [2020-10-12 09:47:25,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:47:25,086 INFO L225 Difference]: With dead ends: 80 [2020-10-12 09:47:25,086 INFO L226 Difference]: Without dead ends: 78 [2020-10-12 09:47:25,087 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2020-10-12 09:47:25,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-10-12 09:47:25,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 72. [2020-10-12 09:47:25,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-12 09:47:25,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 78 transitions. [2020-10-12 09:47:25,103 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 78 transitions. Word has length 47 [2020-10-12 09:47:25,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:47:25,104 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 78 transitions. [2020-10-12 09:47:25,104 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 09:47:25,104 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 78 transitions. [2020-10-12 09:47:25,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-12 09:47:25,105 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:47:25,105 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:47:25,106 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 09:47:25,106 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:47:25,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:47:25,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1751601375, now seen corresponding path program 9 times [2020-10-12 09:47:25,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:47:25,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1960581890] [2020-10-12 09:47:25,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:47:25,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:25,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:25,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:25,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:25,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:25,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-12 09:47:25,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:47:25,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 808 [2020-10-12 09:47:25,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:25,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 09:47:25,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:47:25,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 09:47:25,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:47:26,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:47:26,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:26,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:26,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:26,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:47:26,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:26,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:47:26,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:26,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:26,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:26,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:26,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:47:26,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 09:47:26,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:26,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:26,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:26,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:26,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:26,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 09:47:26,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:26,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:26,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:26,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:26,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:47:26,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-12 09:47:26,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:26,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:26,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:26,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:26,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:26,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 09:47:26,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:26,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:26,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:26,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:26,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:47:26,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 09:47:26,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:26,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:26,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:26,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:26,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:26,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 09:47:26,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:26,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:26,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:26,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:26,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:47:26,503 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 6 proven. 41 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-12 09:47:26,504 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1960581890] [2020-10-12 09:47:26,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:47:26,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-12 09:47:26,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528944376] [2020-10-12 09:47:26,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 09:47:26,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:47:26,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 09:47:26,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-10-12 09:47:26,507 INFO L87 Difference]: Start difference. First operand 72 states and 78 transitions. Second operand 16 states. [2020-10-12 09:47:26,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:47:26,969 INFO L93 Difference]: Finished difference Result 84 states and 90 transitions. [2020-10-12 09:47:26,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-12 09:47:26,970 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 49 [2020-10-12 09:47:26,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:47:26,971 INFO L225 Difference]: With dead ends: 84 [2020-10-12 09:47:26,971 INFO L226 Difference]: Without dead ends: 82 [2020-10-12 09:47:26,972 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2020-10-12 09:47:26,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-12 09:47:26,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 59. [2020-10-12 09:47:26,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-12 09:47:26,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2020-10-12 09:47:26,987 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 49 [2020-10-12 09:47:26,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:47:26,987 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2020-10-12 09:47:26,987 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 09:47:26,987 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2020-10-12 09:47:26,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-12 09:47:26,988 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:47:26,989 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:47:26,989 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 09:47:26,989 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:47:26,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:47:26,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1664962426, now seen corresponding path program 10 times [2020-10-12 09:47:26,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:47:26,990 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [119145894] [2020-10-12 09:47:26,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:47:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:27,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:27,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:27,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:27,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 09:47:27,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:47:27,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-10-12 09:47:27,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:27,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 09:47:27,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:47:27,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 09:47:27,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:27,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:47:27,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:27,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:27,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:27,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:47:27,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:27,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:27,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:27,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:27,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:27,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:27,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:27,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 09:47:27,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:27,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:27,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:27,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:27,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:27,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:27,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:27,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:27,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:47:27,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:27,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:27,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 09:47:27,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:27,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:27,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:27,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:27,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:27,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:27,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:27,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:27,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:47:27,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:27,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:27,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-12 09:47:27,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:27,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:27,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:27,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:27,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:27,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:27,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:27,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:27,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:47:27,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:27,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:27,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 09:47:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:27,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:27,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:27,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:27,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:27,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:27,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:27,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:27,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:47:27,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:27,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:27,330 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 8 proven. 16 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2020-10-12 09:47:27,331 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [119145894] [2020-10-12 09:47:27,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:47:27,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 09:47:27,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735010358] [2020-10-12 09:47:27,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 09:47:27,333 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:47:27,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 09:47:27,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 09:47:27,333 INFO L87 Difference]: Start difference. First operand 59 states and 61 transitions. Second operand 8 states. [2020-10-12 09:47:27,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:47:27,404 INFO L93 Difference]: Finished difference Result 103 states and 106 transitions. [2020-10-12 09:47:27,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 09:47:27,405 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 55 [2020-10-12 09:47:27,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:47:27,405 INFO L225 Difference]: With dead ends: 103 [2020-10-12 09:47:27,406 INFO L226 Difference]: Without dead ends: 62 [2020-10-12 09:47:27,406 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 09:47:27,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-10-12 09:47:27,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 61. [2020-10-12 09:47:27,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-10-12 09:47:27,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 63 transitions. [2020-10-12 09:47:27,422 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 63 transitions. Word has length 55 [2020-10-12 09:47:27,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:47:27,422 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 63 transitions. [2020-10-12 09:47:27,422 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 09:47:27,423 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2020-10-12 09:47:27,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-12 09:47:27,424 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:47:27,425 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:47:27,425 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 09:47:27,425 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:47:27,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:47:27,426 INFO L82 PathProgramCache]: Analyzing trace with hash 1893117784, now seen corresponding path program 11 times [2020-10-12 09:47:27,426 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:47:27,427 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1726923042] [2020-10-12 09:47:27,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:47:27,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:27,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:27,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:27,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:28,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:28,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 09:47:28,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:47:28,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1351 [2020-10-12 09:47:28,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:28,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 09:47:28,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:47:28,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 09:47:28,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:47:29,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:47:29,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:29,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:29,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:29,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:47:29,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:29,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:29,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:29,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:29,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:29,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:29,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:29,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 09:47:29,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:29,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:29,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:29,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:29,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:29,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:47:29,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:29,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:29,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:29,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:29,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:29,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-12 09:47:29,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:29,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:29,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:29,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:29,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:29,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:47:29,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:29,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:29,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:29,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:29,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:29,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 09:47:29,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:29,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:29,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:29,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:29,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:29,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:47:29,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:29,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:29,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:29,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:29,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:29,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-12 09:47:29,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:29,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:29,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:29,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:29,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:29,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:47:29,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:29,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:29,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:29,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:29,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:29,223 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 8 proven. 57 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-12 09:47:29,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1726923042] [2020-10-12 09:47:29,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:47:29,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-12 09:47:29,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784848817] [2020-10-12 09:47:29,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-12 09:47:29,225 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:47:29,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-12 09:47:29,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2020-10-12 09:47:29,227 INFO L87 Difference]: Start difference. First operand 61 states and 63 transitions. Second operand 17 states. [2020-10-12 09:47:29,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:47:29,862 INFO L93 Difference]: Finished difference Result 94 states and 102 transitions. [2020-10-12 09:47:29,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-12 09:47:29,863 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 57 [2020-10-12 09:47:29,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:47:29,866 INFO L225 Difference]: With dead ends: 94 [2020-10-12 09:47:29,866 INFO L226 Difference]: Without dead ends: 92 [2020-10-12 09:47:29,868 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=71, Invalid=579, Unknown=0, NotChecked=0, Total=650 [2020-10-12 09:47:29,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-10-12 09:47:29,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 86. [2020-10-12 09:47:29,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-10-12 09:47:29,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 93 transitions. [2020-10-12 09:47:29,890 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 93 transitions. Word has length 57 [2020-10-12 09:47:29,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:47:29,891 INFO L479 AbstractCegarLoop]: Abstraction has 86 states and 93 transitions. [2020-10-12 09:47:29,891 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-12 09:47:29,892 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 93 transitions. [2020-10-12 09:47:29,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-12 09:47:29,892 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:47:29,892 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:47:29,893 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 09:47:29,893 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:47:29,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:47:29,893 INFO L82 PathProgramCache]: Analyzing trace with hash 2107084726, now seen corresponding path program 12 times [2020-10-12 09:47:29,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:47:29,894 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [730424660] [2020-10-12 09:47:29,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:47:29,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:29,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:29,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:30,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:31,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:31,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 09:47:31,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:47:31,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1132 [2020-10-12 09:47:31,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:31,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-12 09:47:31,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:47:31,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 09:47:31,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:31,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:47:31,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:31,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:31,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:31,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:47:31,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:31,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:31,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:31,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:31,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:31,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:31,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:31,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-12 09:47:31,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:31,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:31,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:31,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:31,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:31,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 09:47:31,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:31,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:31,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:31,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:31,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:31,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-12 09:47:31,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:31,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:31,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:31,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:31,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:31,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:47:31,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:31,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:31,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:31,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:31,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:47:31,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 09:47:31,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:31,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:31,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:31,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:31,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:31,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:47:31,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:31,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:31,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:31,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:31,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:31,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 09:47:31,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:31,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:31,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:31,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:31,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:31,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:47:31,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:31,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:31,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:31,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:31,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:31,584 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 8 proven. 66 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-12 09:47:31,585 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [730424660] [2020-10-12 09:47:31,585 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:47:31,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-12 09:47:31,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161458194] [2020-10-12 09:47:31,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-12 09:47:31,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:47:31,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-12 09:47:31,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2020-10-12 09:47:31,587 INFO L87 Difference]: Start difference. First operand 86 states and 93 transitions. Second operand 18 states. [2020-10-12 09:47:32,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:47:32,249 INFO L93 Difference]: Finished difference Result 98 states and 105 transitions. [2020-10-12 09:47:32,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 09:47:32,250 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 59 [2020-10-12 09:47:32,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:47:32,252 INFO L225 Difference]: With dead ends: 98 [2020-10-12 09:47:32,252 INFO L226 Difference]: Without dead ends: 96 [2020-10-12 09:47:32,253 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=92, Invalid=610, Unknown=0, NotChecked=0, Total=702 [2020-10-12 09:47:32,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-10-12 09:47:32,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 69. [2020-10-12 09:47:32,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-12 09:47:32,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 71 transitions. [2020-10-12 09:47:32,271 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 71 transitions. Word has length 59 [2020-10-12 09:47:32,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:47:32,271 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 71 transitions. [2020-10-12 09:47:32,271 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-12 09:47:32,271 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 71 transitions. [2020-10-12 09:47:32,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-12 09:47:32,272 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:47:32,272 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:47:32,272 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 09:47:32,272 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:47:32,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:47:32,273 INFO L82 PathProgramCache]: Analyzing trace with hash 113805455, now seen corresponding path program 13 times [2020-10-12 09:47:32,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:47:32,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1247125560] [2020-10-12 09:47:32,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:47:32,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:32,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:32,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:32,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:32,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-12 09:47:32,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:47:32,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 320 [2020-10-12 09:47:32,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:32,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 09:47:32,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:47:32,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 09:47:32,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:32,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:47:32,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:32,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:32,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:32,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:47:32,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:32,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:47:32,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:32,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:32,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:32,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:32,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:32,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 09:47:32,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:32,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:32,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:32,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:32,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:32,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:32,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:32,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:32,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:47:32,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:32,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:32,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-12 09:47:32,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:32,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:32,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:32,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:32,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:32,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:47:32,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:32,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:32,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:47:32,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:32,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:32,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 09:47:32,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:32,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:32,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:32,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:32,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:32,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:32,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:32,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:32,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:47:32,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:32,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:32,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-12 09:47:32,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:32,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:32,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:32,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:32,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:32,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:32,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:32,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:32,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:47:32,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:32,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:32,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 09:47:32,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:32,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:32,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:32,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:32,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:32,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:32,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:32,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:32,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:47:32,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:32,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:32,688 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 10 proven. 25 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-10-12 09:47:32,689 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1247125560] [2020-10-12 09:47:32,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:47:32,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 09:47:32,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928242136] [2020-10-12 09:47:32,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 09:47:32,693 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:47:32,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 09:47:32,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-12 09:47:32,695 INFO L87 Difference]: Start difference. First operand 69 states and 71 transitions. Second operand 9 states. [2020-10-12 09:47:32,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:47:32,761 INFO L93 Difference]: Finished difference Result 121 states and 124 transitions. [2020-10-12 09:47:32,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 09:47:32,762 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2020-10-12 09:47:32,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:47:32,763 INFO L225 Difference]: With dead ends: 121 [2020-10-12 09:47:32,763 INFO L226 Difference]: Without dead ends: 72 [2020-10-12 09:47:32,764 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-12 09:47:32,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-12 09:47:32,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 71. [2020-10-12 09:47:32,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-12 09:47:32,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 73 transitions. [2020-10-12 09:47:32,777 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 73 transitions. Word has length 65 [2020-10-12 09:47:32,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:47:32,777 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 73 transitions. [2020-10-12 09:47:32,777 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 09:47:32,777 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 73 transitions. [2020-10-12 09:47:32,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-12 09:47:32,778 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:47:32,778 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:47:32,778 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 09:47:32,778 INFO L427 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:47:32,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:47:32,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1513477395, now seen corresponding path program 14 times [2020-10-12 09:47:32,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:47:32,780 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1746967986] [2020-10-12 09:47:32,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:47:32,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:32,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:32,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:33,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:34,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:34,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 09:47:34,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:47:34,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1373 [2020-10-12 09:47:34,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:34,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-12 09:47:34,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:47:34,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 09:47:34,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:34,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:47:34,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:34,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:34,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:34,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:47:34,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:34,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:34,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:34,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:34,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:34,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:34,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:34,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-12 09:47:34,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:34,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:34,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:34,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:34,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:34,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:47:34,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:34,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:34,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:34,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:34,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:34,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-12 09:47:34,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:34,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:34,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:34,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:34,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:34,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 09:47:34,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:34,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:34,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:34,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:34,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:47:34,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 09:47:34,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:34,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:34,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:34,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:34,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:34,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 09:47:34,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:34,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:34,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:34,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:34,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:47:34,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 09:47:34,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:34,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:34,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:34,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:34,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:34,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 09:47:34,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:34,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:34,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:34,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:34,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:47:34,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-12 09:47:34,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:34,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:34,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:34,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:34,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:34,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 09:47:34,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:34,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:34,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:34,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:34,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:47:34,630 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 10 proven. 86 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-12 09:47:34,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1746967986] [2020-10-12 09:47:34,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:47:34,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-12 09:47:34,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558132324] [2020-10-12 09:47:34,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-12 09:47:34,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:47:34,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-12 09:47:34,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2020-10-12 09:47:34,633 INFO L87 Difference]: Start difference. First operand 71 states and 73 transitions. Second operand 19 states. [2020-10-12 09:47:35,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:47:35,513 INFO L93 Difference]: Finished difference Result 108 states and 117 transitions. [2020-10-12 09:47:35,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-12 09:47:35,514 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 67 [2020-10-12 09:47:35,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:47:35,515 INFO L225 Difference]: With dead ends: 108 [2020-10-12 09:47:35,516 INFO L226 Difference]: Without dead ends: 106 [2020-10-12 09:47:35,516 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=84, Invalid=786, Unknown=0, NotChecked=0, Total=870 [2020-10-12 09:47:35,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-10-12 09:47:35,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 100. [2020-10-12 09:47:35,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-10-12 09:47:35,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 108 transitions. [2020-10-12 09:47:35,532 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 108 transitions. Word has length 67 [2020-10-12 09:47:35,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:47:35,533 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 108 transitions. [2020-10-12 09:47:35,533 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-12 09:47:35,533 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 108 transitions. [2020-10-12 09:47:35,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-12 09:47:35,534 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:47:35,534 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:47:35,534 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 09:47:35,534 INFO L427 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:47:35,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:47:35,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1964200501, now seen corresponding path program 15 times [2020-10-12 09:47:35,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:47:35,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [482010200] [2020-10-12 09:47:35,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:47:35,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:35,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:35,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:35,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:36,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:36,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 09:47:36,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:47:36,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1346 [2020-10-12 09:47:36,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:36,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-12 09:47:36,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:47:36,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 09:47:36,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:37,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:47:37,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:37,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:37,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:37,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:47:37,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:37,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:37,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:37,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:37,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:37,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:37,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:37,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-12 09:47:37,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:37,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:37,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:37,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:37,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:37,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:47:37,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:37,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:37,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:37,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:37,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:37,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 09:47:37,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:37,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:37,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:37,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:37,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:37,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:47:37,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:37,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:37,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:37,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:37,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:37,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-12 09:47:37,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:37,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:37,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:37,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:37,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:37,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:47:37,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:37,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:37,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:37,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:37,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:37,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 09:47:37,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:37,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:37,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:37,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:37,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:37,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:47:37,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:37,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:37,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:37,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:37,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:37,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-12 09:47:37,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:37,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:37,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:37,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:37,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:37,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:47:37,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:37,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:37,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:37,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:37,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:37,436 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 10 proven. 97 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-10-12 09:47:37,437 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [482010200] [2020-10-12 09:47:37,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:47:37,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-12 09:47:37,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357834308] [2020-10-12 09:47:37,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-12 09:47:37,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:47:37,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-12 09:47:37,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2020-10-12 09:47:37,439 INFO L87 Difference]: Start difference. First operand 100 states and 108 transitions. Second operand 20 states. [2020-10-12 09:47:38,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:47:38,206 INFO L93 Difference]: Finished difference Result 112 states and 120 transitions. [2020-10-12 09:47:38,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-12 09:47:38,207 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 69 [2020-10-12 09:47:38,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:47:38,208 INFO L225 Difference]: With dead ends: 112 [2020-10-12 09:47:38,208 INFO L226 Difference]: Without dead ends: 110 [2020-10-12 09:47:38,211 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=107, Invalid=823, Unknown=0, NotChecked=0, Total=930 [2020-10-12 09:47:38,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-10-12 09:47:38,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 79. [2020-10-12 09:47:38,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-12 09:47:38,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 81 transitions. [2020-10-12 09:47:38,240 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 81 transitions. Word has length 69 [2020-10-12 09:47:38,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:47:38,240 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 81 transitions. [2020-10-12 09:47:38,240 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-12 09:47:38,240 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 81 transitions. [2020-10-12 09:47:38,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-12 09:47:38,241 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:47:38,241 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:47:38,241 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 09:47:38,242 INFO L427 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:47:38,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:47:38,243 INFO L82 PathProgramCache]: Analyzing trace with hash -974807260, now seen corresponding path program 16 times [2020-10-12 09:47:38,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:47:38,244 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1395506145] [2020-10-12 09:47:38,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:47:38,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:38,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:38,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:38,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:38,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-12 09:47:38,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:47:38,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 409 [2020-10-12 09:47:38,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:38,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 09:47:38,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:47:38,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 09:47:38,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:38,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:47:38,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:38,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:38,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:38,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:47:38,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:38,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:38,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:38,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:38,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:38,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:38,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:38,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-12 09:47:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:38,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:38,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:38,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:38,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:38,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:47:38,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:38,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:38,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:47:38,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:38,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:38,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-12 09:47:38,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:38,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:38,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:38,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:38,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:38,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:38,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:38,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:38,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:47:38,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:38,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:38,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 09:47:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:38,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:38,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:38,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:38,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:38,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:38,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:38,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:38,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:47:38,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:38,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:38,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 09:47:38,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:38,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:38,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:38,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:38,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:38,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:47:38,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:38,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:38,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:47:38,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:38,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:38,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-12 09:47:38,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:38,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:38,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:38,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:38,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:38,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:47:38,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:38,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:38,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:47:38,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:38,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:38,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 09:47:38,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:38,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:38,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:38,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:38,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:38,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:38,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:38,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:38,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:47:38,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:38,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:38,750 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 12 proven. 36 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2020-10-12 09:47:38,750 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1395506145] [2020-10-12 09:47:38,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:47:38,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 09:47:38,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700857986] [2020-10-12 09:47:38,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 09:47:38,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:47:38,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 09:47:38,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2020-10-12 09:47:38,753 INFO L87 Difference]: Start difference. First operand 79 states and 81 transitions. Second operand 10 states. [2020-10-12 09:47:38,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:47:38,846 INFO L93 Difference]: Finished difference Result 139 states and 142 transitions. [2020-10-12 09:47:38,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 09:47:38,847 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 75 [2020-10-12 09:47:38,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:47:38,848 INFO L225 Difference]: With dead ends: 139 [2020-10-12 09:47:38,849 INFO L226 Difference]: Without dead ends: 82 [2020-10-12 09:47:38,850 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2020-10-12 09:47:38,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-12 09:47:38,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 81. [2020-10-12 09:47:38,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-10-12 09:47:38,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 83 transitions. [2020-10-12 09:47:38,865 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 83 transitions. Word has length 75 [2020-10-12 09:47:38,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:47:38,866 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 83 transitions. [2020-10-12 09:47:38,866 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 09:47:38,866 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 83 transitions. [2020-10-12 09:47:38,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-12 09:47:38,867 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:47:38,867 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:47:38,867 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 09:47:38,867 INFO L427 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:47:38,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:47:38,868 INFO L82 PathProgramCache]: Analyzing trace with hash -1128373246, now seen corresponding path program 17 times [2020-10-12 09:47:38,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:47:38,868 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [850964552] [2020-10-12 09:47:38,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:47:38,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:38,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:38,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:39,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:40,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:40,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-12 09:47:40,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:47:40,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1436 [2020-10-12 09:47:40,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:40,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-12 09:47:40,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:47:40,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-12 09:47:40,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:40,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:47:40,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:40,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:40,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:40,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:47:40,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:40,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:47:40,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:40,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:40,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:40,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:40,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:40,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-12 09:47:40,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:40,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:40,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:40,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:40,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:40,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:47:40,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:40,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:40,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:40,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:40,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:40,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 09:47:40,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:40,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:40,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:40,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:40,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:40,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:47:40,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:40,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:40,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:40,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:40,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:40,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-12 09:47:40,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:40,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:40,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:40,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:40,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:40,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:47:40,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:40,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:40,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:40,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:40,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:40,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 09:47:40,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:40,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:40,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:40,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:40,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:40,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:47:40,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:40,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:40,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:40,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:40,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:47:40,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-12 09:47:40,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:40,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:40,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:40,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:40,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:40,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:47:40,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:40,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:40,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:40,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:40,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:40,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 09:47:40,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:40,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:40,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:40,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:40,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:40,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:47:40,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:40,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:40,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:40,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:40,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:40,831 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 12 proven. 121 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-12 09:47:40,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [850964552] [2020-10-12 09:47:40,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:47:40,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-12 09:47:40,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893773338] [2020-10-12 09:47:40,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-12 09:47:40,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:47:40,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-12 09:47:40,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2020-10-12 09:47:40,834 INFO L87 Difference]: Start difference. First operand 81 states and 83 transitions. Second operand 21 states. [2020-10-12 09:47:41,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:47:41,784 INFO L93 Difference]: Finished difference Result 122 states and 132 transitions. [2020-10-12 09:47:41,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-12 09:47:41,791 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 77 [2020-10-12 09:47:41,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:47:41,792 INFO L225 Difference]: With dead ends: 122 [2020-10-12 09:47:41,792 INFO L226 Difference]: Without dead ends: 120 [2020-10-12 09:47:41,793 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=87, Invalid=905, Unknown=0, NotChecked=0, Total=992 [2020-10-12 09:47:41,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-10-12 09:47:41,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 114. [2020-10-12 09:47:41,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-12 09:47:41,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 123 transitions. [2020-10-12 09:47:41,810 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 123 transitions. Word has length 77 [2020-10-12 09:47:41,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:47:41,810 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 123 transitions. [2020-10-12 09:47:41,810 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-12 09:47:41,810 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 123 transitions. [2020-10-12 09:47:41,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-12 09:47:41,811 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:47:41,811 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:47:41,812 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-12 09:47:41,812 INFO L427 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:47:41,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:47:41,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1618569568, now seen corresponding path program 18 times [2020-10-12 09:47:41,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:47:41,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1101288695] [2020-10-12 09:47:41,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:47:41,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:41,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:41,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:42,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:43,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:43,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 09:47:43,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:47:43,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1685 [2020-10-12 09:47:43,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:43,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-12 09:47:43,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:47:43,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-12 09:47:43,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:44,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:47:44,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:44,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:44,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:44,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:47:44,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:44,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:44,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:44,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:44,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:44,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:44,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:44,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 09:47:44,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:44,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:44,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:44,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:44,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:44,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:47:44,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:44,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:44,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:44,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:44,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:44,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-12 09:47:44,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:44,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:44,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:44,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:44,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:44,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:47:44,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:44,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:44,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:44,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:44,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:44,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 09:47:44,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:44,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:44,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:44,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:44,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:44,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:47:44,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:44,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:44,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:44,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:44,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:44,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 09:47:44,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:44,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:44,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:44,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:44,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:44,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:47:44,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:44,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:44,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:44,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:44,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:44,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 09:47:44,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:44,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:44,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:44,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:44,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:44,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:47:44,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:44,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:44,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:44,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:44,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:44,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 09:47:44,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:44,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:44,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:44,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:44,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:44,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:47:44,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:44,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:44,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:44,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:44,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:44,415 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 12 proven. 134 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-10-12 09:47:44,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1101288695] [2020-10-12 09:47:44,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:47:44,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-12 09:47:44,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950793493] [2020-10-12 09:47:44,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-12 09:47:44,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:47:44,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-12 09:47:44,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2020-10-12 09:47:44,418 INFO L87 Difference]: Start difference. First operand 114 states and 123 transitions. Second operand 22 states. [2020-10-12 09:47:45,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:47:45,460 INFO L93 Difference]: Finished difference Result 126 states and 135 transitions. [2020-10-12 09:47:45,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 09:47:45,463 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 79 [2020-10-12 09:47:45,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:47:45,467 INFO L225 Difference]: With dead ends: 126 [2020-10-12 09:47:45,467 INFO L226 Difference]: Without dead ends: 124 [2020-10-12 09:47:45,468 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=113, Invalid=943, Unknown=0, NotChecked=0, Total=1056 [2020-10-12 09:47:45,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-12 09:47:45,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 89. [2020-10-12 09:47:45,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-10-12 09:47:45,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 91 transitions. [2020-10-12 09:47:45,491 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 91 transitions. Word has length 79 [2020-10-12 09:47:45,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:47:45,491 INFO L479 AbstractCegarLoop]: Abstraction has 89 states and 91 transitions. [2020-10-12 09:47:45,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-12 09:47:45,492 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 91 transitions. [2020-10-12 09:47:45,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-12 09:47:45,492 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:47:45,492 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:47:45,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-12 09:47:45,493 INFO L427 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:47:45,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:47:45,497 INFO L82 PathProgramCache]: Analyzing trace with hash 254669625, now seen corresponding path program 19 times [2020-10-12 09:47:45,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:47:45,498 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [48510502] [2020-10-12 09:47:45,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:47:45,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:45,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:45,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:46,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:46,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-12 09:47:46,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:47:46,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 633 [2020-10-12 09:47:46,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:46,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 09:47:46,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:47:46,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 09:47:46,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:46,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:47:46,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:46,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:46,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:46,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:47:46,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:46,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:47:46,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:46,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:46,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:46,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:46,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:46,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-12 09:47:46,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:46,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:46,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:46,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:46,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:46,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:46,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:46,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:46,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:47:46,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:46,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:46,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 09:47:46,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:46,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:46,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:46,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:46,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:46,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:46,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:46,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:46,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:47:46,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:46,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:46,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-12 09:47:46,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:46,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:46,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:46,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:46,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:46,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:46,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:46,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:46,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:47:46,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:46,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:46,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 09:47:46,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:46,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:46,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:46,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:46,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:46,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:46,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:46,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:46,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:47:46,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:46,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:46,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-12 09:47:46,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:46,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:46,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:46,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:46,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:46,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:46,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:46,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:46,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:47:46,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:46,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:46,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 09:47:46,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:46,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:46,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:46,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:46,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:46,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:46,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:46,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:46,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:47:46,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:46,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:46,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 09:47:46,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:46,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:46,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:46,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:46,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:46,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:46,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:46,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:46,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:47:46,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:46,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:46,260 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 14 proven. 49 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2020-10-12 09:47:46,261 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [48510502] [2020-10-12 09:47:46,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:47:46,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 09:47:46,261 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672516314] [2020-10-12 09:47:46,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 09:47:46,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:47:46,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 09:47:46,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2020-10-12 09:47:46,263 INFO L87 Difference]: Start difference. First operand 89 states and 91 transitions. Second operand 11 states. [2020-10-12 09:47:46,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:47:46,354 INFO L93 Difference]: Finished difference Result 157 states and 160 transitions. [2020-10-12 09:47:46,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 09:47:46,358 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 85 [2020-10-12 09:47:46,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:47:46,359 INFO L225 Difference]: With dead ends: 157 [2020-10-12 09:47:46,359 INFO L226 Difference]: Without dead ends: 92 [2020-10-12 09:47:46,360 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2020-10-12 09:47:46,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-10-12 09:47:46,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 91. [2020-10-12 09:47:46,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-12 09:47:46,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 93 transitions. [2020-10-12 09:47:46,377 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 93 transitions. Word has length 85 [2020-10-12 09:47:46,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:47:46,377 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 93 transitions. [2020-10-12 09:47:46,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 09:47:46,378 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 93 transitions. [2020-10-12 09:47:46,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-12 09:47:46,382 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:47:46,382 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:47:46,382 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-12 09:47:46,382 INFO L427 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:47:46,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:47:46,383 INFO L82 PathProgramCache]: Analyzing trace with hash -1892369769, now seen corresponding path program 20 times [2020-10-12 09:47:46,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:47:46,385 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [92376425] [2020-10-12 09:47:46,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:47:46,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:46,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:46,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:46,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:47,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:47,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-12 09:47:47,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:47:47,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1454 [2020-10-12 09:47:47,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:47,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-12 09:47:47,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:47:47,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-12 09:47:47,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:48,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:47:48,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:48,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:48,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:48,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:47:48,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:48,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:48,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:48,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:48,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:48,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:48,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:48,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 09:47:48,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:48,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:48,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:48,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:48,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:48,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 09:47:48,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:48,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:48,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:48,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:48,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 09:47:48,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-12 09:47:48,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:48,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:48,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:48,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:48,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:48,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 09:47:48,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:48,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:48,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:48,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:48,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:47:48,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 09:47:48,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:48,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:48,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:48,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:48,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:48,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:47:48,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:48,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:48,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:48,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:48,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:47:48,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 09:47:48,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:48,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:48,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:48,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:48,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:48,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:47:48,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:48,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:48,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:48,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:48,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:47:48,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 09:47:48,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:48,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:48,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:48,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:48,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:48,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:47:48,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:48,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:48,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:48,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:48,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:48,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 09:47:48,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:48,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:48,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:48,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:48,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:48,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:47:48,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:48,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:48,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:48,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:48,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:47:48,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 09:47:48,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:48,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:48,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:48,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:48,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:48,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:47:48,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:48,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:48,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:48,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:48,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:47:48,639 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 14 proven. 162 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-12 09:47:48,639 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [92376425] [2020-10-12 09:47:48,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:47:48,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-12 09:47:48,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138309617] [2020-10-12 09:47:48,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-12 09:47:48,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:47:48,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-12 09:47:48,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2020-10-12 09:47:48,648 INFO L87 Difference]: Start difference. First operand 91 states and 93 transitions. Second operand 23 states. [2020-10-12 09:47:49,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:47:49,826 INFO L93 Difference]: Finished difference Result 136 states and 147 transitions. [2020-10-12 09:47:49,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 09:47:49,830 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 87 [2020-10-12 09:47:49,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:47:49,832 INFO L225 Difference]: With dead ends: 136 [2020-10-12 09:47:49,832 INFO L226 Difference]: Without dead ends: 134 [2020-10-12 09:47:49,833 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=95, Invalid=1095, Unknown=0, NotChecked=0, Total=1190 [2020-10-12 09:47:49,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-10-12 09:47:49,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 128. [2020-10-12 09:47:49,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-10-12 09:47:49,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 138 transitions. [2020-10-12 09:47:49,857 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 138 transitions. Word has length 87 [2020-10-12 09:47:49,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:47:49,857 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 138 transitions. [2020-10-12 09:47:49,857 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-12 09:47:49,857 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 138 transitions. [2020-10-12 09:47:49,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-12 09:47:49,859 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:47:49,859 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:47:49,859 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-12 09:47:49,859 INFO L427 AbstractCegarLoop]: === Iteration 24 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:47:49,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:47:49,860 INFO L82 PathProgramCache]: Analyzing trace with hash 682041973, now seen corresponding path program 21 times [2020-10-12 09:47:49,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:47:49,860 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [193091223] [2020-10-12 09:47:49,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:47:49,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:49,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:49,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:50,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:51,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:51,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 09:47:51,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:47:51,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1750 [2020-10-12 09:47:51,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:51,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-12 09:47:51,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:47:51,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-12 09:47:51,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:52,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:47:52,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:52,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:52,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:52,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:47:52,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:52,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:52,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:52,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:52,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:52,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:52,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:52,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-12 09:47:52,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:52,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:52,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:52,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:52,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:52,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:47:52,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:52,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:52,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:52,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:52,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:52,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 09:47:52,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:52,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:52,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:52,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:52,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:52,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:47:52,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:52,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:52,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:52,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:52,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:52,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-12 09:47:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:52,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:52,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:52,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:52,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:52,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:47:52,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:52,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:52,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:52,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:52,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:52,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 09:47:52,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:52,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:52,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:52,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:52,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:52,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:52,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:52,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:52,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:52,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:52,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:52,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 09:47:52,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:52,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:52,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:52,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:52,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:52,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:47:52,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:52,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:52,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:52,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:52,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:52,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 09:47:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:52,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:52,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:52,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:52,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:52,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:47:52,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:52,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:52,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:52,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:52,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:52,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 09:47:52,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:52,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:52,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:52,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:52,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:52,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:47:52,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:52,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:52,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:52,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:52,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:52,794 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 14 proven. 177 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-12 09:47:52,797 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [193091223] [2020-10-12 09:47:52,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:47:52,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-12 09:47:52,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349861569] [2020-10-12 09:47:52,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-12 09:47:52,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:47:52,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-12 09:47:52,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=490, Unknown=0, NotChecked=0, Total=552 [2020-10-12 09:47:52,799 INFO L87 Difference]: Start difference. First operand 128 states and 138 transitions. Second operand 24 states. [2020-10-12 09:47:54,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:47:54,170 INFO L93 Difference]: Finished difference Result 140 states and 150 transitions. [2020-10-12 09:47:54,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-12 09:47:54,171 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 89 [2020-10-12 09:47:54,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:47:54,174 INFO L225 Difference]: With dead ends: 140 [2020-10-12 09:47:54,174 INFO L226 Difference]: Without dead ends: 138 [2020-10-12 09:47:54,176 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=129, Invalid=1203, Unknown=0, NotChecked=0, Total=1332 [2020-10-12 09:47:54,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-10-12 09:47:54,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 99. [2020-10-12 09:47:54,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-10-12 09:47:54,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 101 transitions. [2020-10-12 09:47:54,195 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 101 transitions. Word has length 89 [2020-10-12 09:47:54,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:47:54,195 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 101 transitions. [2020-10-12 09:47:54,195 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-12 09:47:54,195 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 101 transitions. [2020-10-12 09:47:54,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-12 09:47:54,197 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:47:54,197 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:47:54,198 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-12 09:47:54,200 INFO L427 AbstractCegarLoop]: === Iteration 25 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:47:54,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:47:54,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1422058702, now seen corresponding path program 22 times [2020-10-12 09:47:54,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:47:54,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1871243354] [2020-10-12 09:47:54,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:47:54,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:54,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:54,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:54,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:54,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 09:47:54,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:47:54,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 494 [2020-10-12 09:47:54,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:54,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 09:47:54,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:47:54,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 09:47:54,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:54,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:47:54,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:54,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:54,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:54,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:47:54,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:54,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:54,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:54,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:54,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:54,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:54,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:54,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 09:47:54,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:54,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:54,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:54,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:54,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:54,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:54,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:54,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:54,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:47:54,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:54,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:54,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-12 09:47:54,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:54,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:54,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:54,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:54,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:54,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:54,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:54,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:54,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:47:54,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:54,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:54,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 09:47:54,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:54,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:54,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:54,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:54,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:54,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:47:54,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:54,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:54,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:47:54,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:54,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:54,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 09:47:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:54,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:54,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:54,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:54,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:54,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:47:54,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:54,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:54,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:47:54,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:54,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:54,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 09:47:54,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:54,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:54,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:54,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:54,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:54,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:54,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:54,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:54,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:47:54,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:54,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:54,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 09:47:54,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:54,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:54,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:54,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:54,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:54,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:54,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:54,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:54,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:47:54,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:54,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:54,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 09:47:54,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:54,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:54,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:54,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:54,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:54,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:47:54,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:54,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:54,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:47:54,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:54,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:54,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 09:47:54,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:54,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:54,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:54,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:54,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:54,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:47:54,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:54,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:54,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:47:54,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:54,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:54,831 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 16 proven. 64 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2020-10-12 09:47:54,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1871243354] [2020-10-12 09:47:54,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:47:54,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 09:47:54,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666864491] [2020-10-12 09:47:54,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 09:47:54,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:47:54,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 09:47:54,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-10-12 09:47:54,833 INFO L87 Difference]: Start difference. First operand 99 states and 101 transitions. Second operand 12 states. [2020-10-12 09:47:54,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:47:54,927 INFO L93 Difference]: Finished difference Result 175 states and 178 transitions. [2020-10-12 09:47:54,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 09:47:54,927 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 95 [2020-10-12 09:47:54,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:47:54,928 INFO L225 Difference]: With dead ends: 175 [2020-10-12 09:47:54,928 INFO L226 Difference]: Without dead ends: 102 [2020-10-12 09:47:54,929 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-10-12 09:47:54,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-10-12 09:47:54,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 101. [2020-10-12 09:47:54,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-10-12 09:47:54,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 103 transitions. [2020-10-12 09:47:54,941 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 103 transitions. Word has length 95 [2020-10-12 09:47:54,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:47:54,942 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 103 transitions. [2020-10-12 09:47:54,942 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 09:47:54,942 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 103 transitions. [2020-10-12 09:47:54,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-12 09:47:54,943 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:47:54,943 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:47:54,943 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-12 09:47:54,943 INFO L427 AbstractCegarLoop]: === Iteration 26 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:47:54,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:47:54,943 INFO L82 PathProgramCache]: Analyzing trace with hash 2016841388, now seen corresponding path program 23 times [2020-10-12 09:47:54,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:47:54,944 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1990589461] [2020-10-12 09:47:54,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:47:54,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:54,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:54,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:55,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:56,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:56,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-12 09:47:56,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:47:56,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1795 [2020-10-12 09:47:56,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:56,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-12 09:47:56,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:47:56,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-12 09:47:56,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:57,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:47:57,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:57,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:57,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:57,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:47:57,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:57,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:57,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:57,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:47:57,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:57,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:47:57,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:57,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-12 09:47:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:57,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:57,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:57,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:57,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:57,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:47:57,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:57,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:57,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:57,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:57,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:57,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 09:47:57,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:57,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:57,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:57,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:57,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:57,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:47:57,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:57,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:57,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:57,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:57,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:57,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-12 09:47:57,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:57,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:57,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:57,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:57,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:57,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:47:57,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:57,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:57,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:57,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:57,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:57,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 09:47:57,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:57,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:57,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:57,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:57,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:57,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:47:57,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:57,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:57,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:57,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:57,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:57,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 09:47:57,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:57,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:57,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:57,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:57,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:57,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:47:57,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:57,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:57,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:57,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:57,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:57,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 09:47:57,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:57,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:57,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:57,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:57,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:57,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:47:57,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:57,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:57,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:57,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:57,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:57,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 09:47:57,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:57,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:57,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:57,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:57,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:57,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:47:57,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:57,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:57,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:57,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:57,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:57,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-12 09:47:57,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:57,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:57,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:47:57,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:47:57,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:47:57,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:47:57,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:47:57,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:47:57,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:47:57,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:47:57,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:47:57,574 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 16 proven. 209 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-12 09:47:57,575 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1990589461] [2020-10-12 09:47:57,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:47:57,575 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-12 09:47:57,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608754987] [2020-10-12 09:47:57,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-12 09:47:57,576 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:47:57,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-12 09:47:57,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2020-10-12 09:47:57,577 INFO L87 Difference]: Start difference. First operand 101 states and 103 transitions. Second operand 25 states. [2020-10-12 09:47:58,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:47:58,947 INFO L93 Difference]: Finished difference Result 150 states and 162 transitions. [2020-10-12 09:47:58,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-12 09:47:58,952 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 97 [2020-10-12 09:47:58,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:47:58,955 INFO L225 Difference]: With dead ends: 150 [2020-10-12 09:47:58,955 INFO L226 Difference]: Without dead ends: 148 [2020-10-12 09:47:58,957 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=103, Invalid=1303, Unknown=0, NotChecked=0, Total=1406 [2020-10-12 09:47:58,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-10-12 09:47:58,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 142. [2020-10-12 09:47:58,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-10-12 09:47:58,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 153 transitions. [2020-10-12 09:47:58,975 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 153 transitions. Word has length 97 [2020-10-12 09:47:58,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:47:58,975 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 153 transitions. [2020-10-12 09:47:58,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-12 09:47:58,975 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 153 transitions. [2020-10-12 09:47:58,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-12 09:47:58,977 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:47:58,977 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:47:58,977 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-12 09:47:58,977 INFO L427 AbstractCegarLoop]: === Iteration 27 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:47:58,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:47:58,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1922615030, now seen corresponding path program 24 times [2020-10-12 09:47:58,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:47:58,978 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1438227361] [2020-10-12 09:47:58,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:47:58,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:47:58,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:58,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:47:59,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:00,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:00,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 09:48:00,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:48:00,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1460 [2020-10-12 09:48:00,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:00,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-12 09:48:00,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:48:00,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-12 09:48:00,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:01,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:48:01,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:01,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:01,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:01,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:48:01,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:01,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:01,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:01,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:01,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:01,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:01,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:01,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-12 09:48:01,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:01,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:01,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:01,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:01,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:01,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:01,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:01,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:01,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:01,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:01,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:01,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 09:48:01,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:01,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:01,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:01,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:01,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:01,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:01,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:01,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:01,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:01,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:01,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:01,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 09:48:01,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:01,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:01,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:01,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:01,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:01,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:01,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:01,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:01,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:01,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:01,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:01,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-12 09:48:01,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:01,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:01,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:01,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:01,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:01,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:48:01,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:01,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:01,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:01,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:01,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:01,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 09:48:01,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:01,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:01,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:01,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:01,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:01,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:48:01,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:01,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:01,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:01,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:01,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:01,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 09:48:01,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:01,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:01,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:01,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:01,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:01,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:01,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:01,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:01,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:01,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:01,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:01,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-12 09:48:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:01,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:01,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:01,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:01,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:01,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:48:01,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:01,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:01,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:01,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:01,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:01,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 09:48:01,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:01,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:01,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:01,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:01,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:01,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:01,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:01,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:01,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:01,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:01,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:01,437 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 16 proven. 226 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2020-10-12 09:48:01,437 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1438227361] [2020-10-12 09:48:01,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:48:01,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-12 09:48:01,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203091084] [2020-10-12 09:48:01,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-12 09:48:01,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:48:01,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-12 09:48:01,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2020-10-12 09:48:01,439 INFO L87 Difference]: Start difference. First operand 142 states and 153 transitions. Second operand 26 states. [2020-10-12 09:48:02,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:48:02,807 INFO L93 Difference]: Finished difference Result 154 states and 165 transitions. [2020-10-12 09:48:02,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-12 09:48:02,808 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 99 [2020-10-12 09:48:02,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:48:02,809 INFO L225 Difference]: With dead ends: 154 [2020-10-12 09:48:02,809 INFO L226 Difference]: Without dead ends: 152 [2020-10-12 09:48:02,810 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=136, Invalid=1346, Unknown=0, NotChecked=0, Total=1482 [2020-10-12 09:48:02,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-10-12 09:48:02,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 109. [2020-10-12 09:48:02,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-12 09:48:02,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 111 transitions. [2020-10-12 09:48:02,823 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 111 transitions. Word has length 99 [2020-10-12 09:48:02,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:48:02,824 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 111 transitions. [2020-10-12 09:48:02,824 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-12 09:48:02,824 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 111 transitions. [2020-10-12 09:48:02,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-12 09:48:02,825 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:48:02,825 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:48:02,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-12 09:48:02,825 INFO L427 AbstractCegarLoop]: === Iteration 28 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:48:02,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:48:02,826 INFO L82 PathProgramCache]: Analyzing trace with hash -2108828701, now seen corresponding path program 25 times [2020-10-12 09:48:02,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:48:02,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [492861872] [2020-10-12 09:48:02,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:48:02,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:02,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:02,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:03,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:03,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-12 09:48:03,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:48:03,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 532 [2020-10-12 09:48:03,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:03,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 09:48:03,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:48:03,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-12 09:48:03,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:03,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:48:03,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:03,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:03,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:03,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:48:03,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:03,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:03,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:03,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:03,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:03,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:03,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:03,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-12 09:48:03,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:03,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:03,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:03,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:03,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:03,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:03,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:03,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:03,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:03,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:03,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:03,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 09:48:03,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:03,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:03,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:03,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:03,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:03,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:03,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:03,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:03,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:03,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:03,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:03,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-12 09:48:03,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:03,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:03,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:03,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:03,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:03,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:03,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:03,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:03,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:03,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:03,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:03,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 09:48:03,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:03,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:03,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:03,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:03,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:03,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:03,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:03,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:03,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:03,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:03,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:03,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 09:48:03,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:03,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:03,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:03,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:03,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:03,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:03,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:03,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:03,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:03,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:03,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:03,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 09:48:03,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:03,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:03,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:03,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:03,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:03,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:03,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:03,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:03,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:03,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:03,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:03,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 09:48:03,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:03,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:03,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:03,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:03,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:03,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:03,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:03,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:03,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:03,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:03,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:03,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-12 09:48:03,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:03,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:03,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:03,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:03,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:03,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:03,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:03,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:03,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:03,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:03,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:03,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-12 09:48:03,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:03,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:03,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:03,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:03,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:03,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:03,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:03,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:03,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:03,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:03,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:03,495 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 18 proven. 81 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2020-10-12 09:48:03,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [492861872] [2020-10-12 09:48:03,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:48:03,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 09:48:03,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761564872] [2020-10-12 09:48:03,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 09:48:03,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:48:03,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 09:48:03,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2020-10-12 09:48:03,497 INFO L87 Difference]: Start difference. First operand 109 states and 111 transitions. Second operand 13 states. [2020-10-12 09:48:03,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:48:03,580 INFO L93 Difference]: Finished difference Result 193 states and 196 transitions. [2020-10-12 09:48:03,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 09:48:03,581 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 105 [2020-10-12 09:48:03,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:48:03,582 INFO L225 Difference]: With dead ends: 193 [2020-10-12 09:48:03,583 INFO L226 Difference]: Without dead ends: 112 [2020-10-12 09:48:03,583 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2020-10-12 09:48:03,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-12 09:48:03,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 111. [2020-10-12 09:48:03,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-10-12 09:48:03,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 113 transitions. [2020-10-12 09:48:03,598 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 113 transitions. Word has length 105 [2020-10-12 09:48:03,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:48:03,598 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 113 transitions. [2020-10-12 09:48:03,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 09:48:03,599 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 113 transitions. [2020-10-12 09:48:03,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-12 09:48:03,600 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:48:03,600 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:48:03,600 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-12 09:48:03,601 INFO L427 AbstractCegarLoop]: === Iteration 29 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:48:03,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:48:03,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1247100993, now seen corresponding path program 26 times [2020-10-12 09:48:03,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:48:03,601 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1005258746] [2020-10-12 09:48:03,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:48:03,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:03,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:03,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:03,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:05,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:05,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-12 09:48:05,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:48:05,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2122 [2020-10-12 09:48:05,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:05,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-12 09:48:05,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:48:05,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-12 09:48:05,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:06,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:48:06,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:06,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:06,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:06,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:48:06,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:06,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:06,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:06,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:06,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:06,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:06,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:06,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-12 09:48:06,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:06,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:06,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:06,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:06,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:06,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:06,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:06,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:06,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:06,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:06,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:06,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 09:48:06,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:06,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:06,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:06,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:06,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:06,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:06,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:06,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:06,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:06,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:06,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:06,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 09:48:06,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:06,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:06,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:06,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:06,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:06,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:48:06,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:06,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:06,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:06,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:06,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:06,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-12 09:48:06,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:06,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:06,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:06,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:06,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:06,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:06,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:06,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:06,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:06,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:06,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:06,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 09:48:06,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:06,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:06,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:06,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:06,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:06,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:06,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:06,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:06,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:06,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:06,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:06,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 09:48:06,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:06,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:06,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:06,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:06,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:06,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:06,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:06,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:06,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:06,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:06,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:06,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-12 09:48:06,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:06,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:06,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:06,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:06,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:06,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:06,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:06,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:06,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:06,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:06,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:06,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 09:48:06,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:06,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:06,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:06,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:06,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:06,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:06,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:06,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:06,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:06,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:06,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:06,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 09:48:06,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:06,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:06,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:06,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:06,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:06,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:48:06,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:06,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:06,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:06,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:06,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:06,624 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 18 proven. 262 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-12 09:48:06,624 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1005258746] [2020-10-12 09:48:06,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:48:06,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-12 09:48:06,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285078561] [2020-10-12 09:48:06,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-12 09:48:06,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:48:06,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-12 09:48:06,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=651, Unknown=0, NotChecked=0, Total=702 [2020-10-12 09:48:06,626 INFO L87 Difference]: Start difference. First operand 111 states and 113 transitions. Second operand 27 states. [2020-10-12 09:48:08,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:48:08,171 INFO L93 Difference]: Finished difference Result 164 states and 177 transitions. [2020-10-12 09:48:08,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-12 09:48:08,173 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 107 [2020-10-12 09:48:08,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:48:08,174 INFO L225 Difference]: With dead ends: 164 [2020-10-12 09:48:08,174 INFO L226 Difference]: Without dead ends: 162 [2020-10-12 09:48:08,175 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=111, Invalid=1529, Unknown=0, NotChecked=0, Total=1640 [2020-10-12 09:48:08,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-12 09:48:08,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 156. [2020-10-12 09:48:08,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-10-12 09:48:08,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 168 transitions. [2020-10-12 09:48:08,198 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 168 transitions. Word has length 107 [2020-10-12 09:48:08,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:48:08,198 INFO L479 AbstractCegarLoop]: Abstraction has 156 states and 168 transitions. [2020-10-12 09:48:08,198 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-12 09:48:08,199 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 168 transitions. [2020-10-12 09:48:08,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-12 09:48:08,211 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:48:08,211 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:48:08,211 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-12 09:48:08,211 INFO L427 AbstractCegarLoop]: === Iteration 30 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:48:08,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:48:08,212 INFO L82 PathProgramCache]: Analyzing trace with hash 775097631, now seen corresponding path program 27 times [2020-10-12 09:48:08,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:48:08,212 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [607464729] [2020-10-12 09:48:08,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:48:08,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:08,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:08,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:08,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:10,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:10,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-12 09:48:10,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:48:10,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1941 [2020-10-12 09:48:10,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:10,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-12 09:48:10,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:48:10,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-12 09:48:10,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:11,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:48:11,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:11,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:11,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:11,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:48:11,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:11,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:11,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:11,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:11,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:11,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:11,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:11,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 09:48:11,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:11,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:11,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:11,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:11,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:11,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:11,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:11,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:11,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:11,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:11,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:11,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-12 09:48:11,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:11,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:11,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:11,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:11,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:11,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:11,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:11,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:11,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:11,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:11,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:11,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 09:48:11,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:11,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:11,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:11,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:11,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:11,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:11,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:11,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:11,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:11,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:11,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:11,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-12 09:48:11,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:11,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:11,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:11,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:11,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:11,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:11,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:11,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:11,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:11,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:11,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:11,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 09:48:11,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:11,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:11,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:11,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:11,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:11,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:11,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:11,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:11,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:11,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:11,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:11,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 09:48:11,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:11,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:11,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:11,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:11,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:11,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:11,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:11,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:11,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:11,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:11,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:11,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 09:48:11,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:11,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:11,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:11,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:11,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:11,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:48:11,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:11,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:11,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:11,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:11,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:11,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 09:48:11,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:11,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:11,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:11,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:11,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:11,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:11,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:11,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:11,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:11,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:11,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:11,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 09:48:11,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:11,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:11,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:11,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:11,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:11,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:11,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:11,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:11,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:11,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:11,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:11,223 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 18 proven. 281 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2020-10-12 09:48:11,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [607464729] [2020-10-12 09:48:11,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:48:11,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-12 09:48:11,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085347074] [2020-10-12 09:48:11,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-12 09:48:11,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:48:11,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-12 09:48:11,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=682, Unknown=0, NotChecked=0, Total=756 [2020-10-12 09:48:11,225 INFO L87 Difference]: Start difference. First operand 156 states and 168 transitions. Second operand 28 states. [2020-10-12 09:48:12,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:48:12,794 INFO L93 Difference]: Finished difference Result 168 states and 180 transitions. [2020-10-12 09:48:12,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-12 09:48:12,795 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 109 [2020-10-12 09:48:12,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:48:12,796 INFO L225 Difference]: With dead ends: 168 [2020-10-12 09:48:12,796 INFO L226 Difference]: Without dead ends: 166 [2020-10-12 09:48:12,797 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=151, Invalid=1655, Unknown=0, NotChecked=0, Total=1806 [2020-10-12 09:48:12,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-10-12 09:48:12,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 119. [2020-10-12 09:48:12,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-10-12 09:48:12,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 121 transitions. [2020-10-12 09:48:12,814 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 121 transitions. Word has length 109 [2020-10-12 09:48:12,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:48:12,814 INFO L479 AbstractCegarLoop]: Abstraction has 119 states and 121 transitions. [2020-10-12 09:48:12,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-12 09:48:12,814 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 121 transitions. [2020-10-12 09:48:12,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-12 09:48:12,816 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:48:12,816 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:48:12,816 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-12 09:48:12,816 INFO L427 AbstractCegarLoop]: === Iteration 31 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:48:12,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:48:12,816 INFO L82 PathProgramCache]: Analyzing trace with hash -218095496, now seen corresponding path program 28 times [2020-10-12 09:48:12,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:48:12,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [580558637] [2020-10-12 09:48:12,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:48:12,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:12,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:12,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:13,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:13,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 09:48:13,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:48:13,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 721 [2020-10-12 09:48:13,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:13,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 09:48:13,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:48:13,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 09:48:13,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:13,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:48:13,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:13,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:13,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:13,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:48:13,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:13,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:13,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:13,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:13,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:13,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:13,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:48:13,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-12 09:48:13,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:13,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:13,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:13,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:13,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:13,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:13,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:13,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:13,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:13,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:13,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:13,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 09:48:13,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:13,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:13,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:13,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:13,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:13,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:48:13,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:13,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:13,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:13,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:13,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:13,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 09:48:13,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:13,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:13,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:13,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:13,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:13,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:13,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:13,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:13,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:13,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:13,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:48:13,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-12 09:48:13,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:13,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:13,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:13,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:13,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:13,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:13,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:13,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:13,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:13,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:13,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:48:13,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 09:48:13,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:13,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:13,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:13,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:13,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:13,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:13,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:13,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:13,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:13,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:13,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:48:13,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 09:48:13,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:13,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:13,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:13,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:13,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:13,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:13,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:13,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:13,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:13,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:13,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:48:13,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-12 09:48:13,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:13,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:13,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:13,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:13,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:13,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:13,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:13,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:13,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:13,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:13,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:48:13,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 09:48:13,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:13,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:13,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:13,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:13,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:13,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 09:48:13,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:13,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:13,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:13,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:13,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:48:13,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 09:48:13,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:13,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:13,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:13,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:13,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:13,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:13,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:13,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:13,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:13,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:13,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:48:13,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 09:48:13,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:13,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:13,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:13,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:13,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:13,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:13,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:13,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:13,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:13,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:13,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 09:48:13,756 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 20 proven. 100 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2020-10-12 09:48:13,757 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [580558637] [2020-10-12 09:48:13,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:48:13,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-12 09:48:13,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931276164] [2020-10-12 09:48:13,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 09:48:13,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:48:13,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 09:48:13,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2020-10-12 09:48:13,758 INFO L87 Difference]: Start difference. First operand 119 states and 121 transitions. Second operand 14 states. [2020-10-12 09:48:13,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:48:13,872 INFO L93 Difference]: Finished difference Result 211 states and 214 transitions. [2020-10-12 09:48:13,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 09:48:13,873 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 115 [2020-10-12 09:48:13,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:48:13,875 INFO L225 Difference]: With dead ends: 211 [2020-10-12 09:48:13,875 INFO L226 Difference]: Without dead ends: 122 [2020-10-12 09:48:13,876 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2020-10-12 09:48:13,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-10-12 09:48:13,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2020-10-12 09:48:13,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-10-12 09:48:13,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 123 transitions. [2020-10-12 09:48:13,906 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 123 transitions. Word has length 115 [2020-10-12 09:48:13,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:48:13,907 INFO L479 AbstractCegarLoop]: Abstraction has 121 states and 123 transitions. [2020-10-12 09:48:13,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 09:48:13,907 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 123 transitions. [2020-10-12 09:48:13,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-12 09:48:13,908 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:48:13,908 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:48:13,909 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-12 09:48:13,909 INFO L427 AbstractCegarLoop]: === Iteration 32 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:48:13,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:48:13,909 INFO L82 PathProgramCache]: Analyzing trace with hash -978702506, now seen corresponding path program 29 times [2020-10-12 09:48:13,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:48:13,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1487185977] [2020-10-12 09:48:13,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:48:13,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:13,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:13,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:14,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:17,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:17,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 09:48:17,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:48:17,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3550 [2020-10-12 09:48:17,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:17,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-12 09:48:17,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:48:17,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-12 09:48:17,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:18,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:48:18,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:18,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:18,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:18,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:48:18,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:18,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:18,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:18,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:18,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:18,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:18,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:18,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 09:48:18,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:18,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:18,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:18,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:18,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:18,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:18,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:18,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:18,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:18,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:18,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:18,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-12 09:48:18,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:18,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:18,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:18,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:18,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:18,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:48:18,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:18,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:18,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:18,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:18,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:18,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 09:48:18,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:18,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:18,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:18,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:18,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:18,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:18,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:18,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:18,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:18,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:18,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:18,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-12 09:48:18,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:18,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:18,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:18,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:18,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:18,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:18,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:18,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:18,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:18,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:18,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:18,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 09:48:18,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:18,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:18,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:18,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:18,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:18,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:18,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:18,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:18,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:18,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:18,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:18,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 09:48:18,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:18,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:18,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:18,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:18,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:18,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:18,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:18,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:18,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:18,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:18,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:18,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 09:48:18,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:18,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:18,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:18,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:18,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:18,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:18,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:18,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:18,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:18,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:18,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:18,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 09:48:18,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:18,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:18,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:18,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:18,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:18,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:18,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:18,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:18,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:18,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:18,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:18,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 09:48:18,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:18,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:18,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:18,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:18,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:18,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:18,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:18,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:18,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:18,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:18,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:18,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-12 09:48:18,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:18,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:18,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:18,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:18,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:18,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:18,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:18,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:18,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:18,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:18,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:18,418 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 20 proven. 321 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-12 09:48:18,418 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1487185977] [2020-10-12 09:48:18,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:48:18,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-12 09:48:18,418 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085097149] [2020-10-12 09:48:18,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-12 09:48:18,419 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:48:18,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-12 09:48:18,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=757, Unknown=0, NotChecked=0, Total=812 [2020-10-12 09:48:18,420 INFO L87 Difference]: Start difference. First operand 121 states and 123 transitions. Second operand 29 states. [2020-10-12 09:48:20,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:48:20,208 INFO L93 Difference]: Finished difference Result 178 states and 192 transitions. [2020-10-12 09:48:20,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-12 09:48:20,209 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 117 [2020-10-12 09:48:20,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:48:20,211 INFO L225 Difference]: With dead ends: 178 [2020-10-12 09:48:20,211 INFO L226 Difference]: Without dead ends: 176 [2020-10-12 09:48:20,212 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=119, Invalid=1773, Unknown=0, NotChecked=0, Total=1892 [2020-10-12 09:48:20,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2020-10-12 09:48:20,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 170. [2020-10-12 09:48:20,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-10-12 09:48:20,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 183 transitions. [2020-10-12 09:48:20,236 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 183 transitions. Word has length 117 [2020-10-12 09:48:20,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:48:20,237 INFO L479 AbstractCegarLoop]: Abstraction has 170 states and 183 transitions. [2020-10-12 09:48:20,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-12 09:48:20,237 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 183 transitions. [2020-10-12 09:48:20,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-12 09:48:20,239 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:48:20,239 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:48:20,239 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-12 09:48:20,239 INFO L427 AbstractCegarLoop]: === Iteration 33 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:48:20,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:48:20,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1777598796, now seen corresponding path program 30 times [2020-10-12 09:48:20,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:48:20,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1855376721] [2020-10-12 09:48:20,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:48:20,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:20,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:20,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:21,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:22,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:22,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-12 09:48:22,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:48:22,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2410 [2020-10-12 09:48:22,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:22,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-12 09:48:22,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:48:22,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-12 09:48:22,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:23,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:48:23,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:23,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:23,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:23,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:48:23,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:23,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:23,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:23,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:23,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:23,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:23,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:23,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-12 09:48:23,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:23,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:23,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:23,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:23,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:23,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:23,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:23,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:23,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:23,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:23,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:23,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 09:48:23,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:23,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:23,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:23,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:23,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:23,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:23,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:23,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:23,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:23,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:23,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:23,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 09:48:23,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:23,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:23,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:23,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:23,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:23,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:48:23,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:23,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:23,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:23,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:23,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:23,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 09:48:23,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:23,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:23,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:23,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:23,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:23,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:23,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:23,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:23,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:23,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:23,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:23,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 09:48:23,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:23,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:23,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:23,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:23,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:23,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:23,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:23,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:23,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:23,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:23,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:23,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 09:48:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:23,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:23,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:23,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:23,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:23,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:48:23,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:23,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:23,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:23,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:23,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:23,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 09:48:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:23,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:23,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:23,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:23,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:23,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:23,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:23,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:23,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:23,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:23,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:23,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 09:48:23,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:23,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:23,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:23,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:23,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:23,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:48:23,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:23,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:23,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:23,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:23,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:23,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 09:48:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:23,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:23,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:23,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:23,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:23,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:48:23,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:23,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:23,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:23,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:23,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:23,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-12 09:48:23,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:23,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:23,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:23,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:23,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:23,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:23,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:23,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:23,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:23,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:23,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:23,903 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 20 proven. 342 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2020-10-12 09:48:23,903 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1855376721] [2020-10-12 09:48:23,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:48:23,904 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-12 09:48:23,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68021720] [2020-10-12 09:48:23,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-12 09:48:23,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:48:23,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-12 09:48:23,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=789, Unknown=0, NotChecked=0, Total=870 [2020-10-12 09:48:23,905 INFO L87 Difference]: Start difference. First operand 170 states and 183 transitions. Second operand 30 states. [2020-10-12 09:48:25,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:48:25,840 INFO L93 Difference]: Finished difference Result 182 states and 195 transitions. [2020-10-12 09:48:25,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-12 09:48:25,840 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 119 [2020-10-12 09:48:25,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:48:25,842 INFO L225 Difference]: With dead ends: 182 [2020-10-12 09:48:25,842 INFO L226 Difference]: Without dead ends: 180 [2020-10-12 09:48:25,843 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=158, Invalid=1822, Unknown=0, NotChecked=0, Total=1980 [2020-10-12 09:48:25,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-10-12 09:48:25,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 129. [2020-10-12 09:48:25,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-10-12 09:48:25,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 131 transitions. [2020-10-12 09:48:25,859 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 131 transitions. Word has length 119 [2020-10-12 09:48:25,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:48:25,860 INFO L479 AbstractCegarLoop]: Abstraction has 129 states and 131 transitions. [2020-10-12 09:48:25,860 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-12 09:48:25,860 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 131 transitions. [2020-10-12 09:48:25,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-12 09:48:25,861 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:48:25,861 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:48:25,861 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-12 09:48:25,861 INFO L427 AbstractCegarLoop]: === Iteration 34 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:48:25,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:48:25,862 INFO L82 PathProgramCache]: Analyzing trace with hash -409785715, now seen corresponding path program 31 times [2020-10-12 09:48:25,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:48:25,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [394047259] [2020-10-12 09:48:25,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:48:25,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:25,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:25,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:26,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:26,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-12 09:48:26,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:48:26,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 773 [2020-10-12 09:48:26,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:26,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 09:48:26,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:48:26,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-12 09:48:26,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:26,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:48:26,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:26,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:26,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:26,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:48:26,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:26,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:26,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:26,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:26,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:26,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:26,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:26,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 09:48:26,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:26,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:26,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:26,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:26,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:26,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:26,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:26,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:26,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:26,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:26,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:26,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-12 09:48:26,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:26,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:26,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:26,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:26,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:26,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:26,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:26,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:26,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:26,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:26,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:26,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 09:48:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:26,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:26,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:26,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:26,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:26,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:26,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:26,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:26,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:26,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:26,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:26,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-12 09:48:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:26,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:26,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:26,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:26,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:26,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:26,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:26,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:26,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:26,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:26,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:26,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 09:48:26,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:26,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:26,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:26,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:26,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:26,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:26,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:26,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:26,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:26,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:26,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:26,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 09:48:26,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:26,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:26,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:26,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:26,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:26,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:26,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:26,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:26,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:26,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:26,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:26,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 09:48:26,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:26,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:26,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:26,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:26,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:26,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:26,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:26,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:26,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:26,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:26,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:26,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 09:48:26,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:26,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:26,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:26,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:26,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:26,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:26,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:26,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:26,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:26,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:26,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:26,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 09:48:26,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:26,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:26,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:26,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:26,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:26,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:26,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:26,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:26,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:26,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:26,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:26,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-12 09:48:26,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:26,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:26,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:26,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:26,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:26,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:26,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:26,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:26,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:26,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:26,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:26,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 09:48:26,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:26,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:26,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:26,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:26,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:26,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:26,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:26,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:26,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:26,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:26,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:26,819 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 22 proven. 121 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2020-10-12 09:48:26,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [394047259] [2020-10-12 09:48:26,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:48:26,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-12 09:48:26,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607266876] [2020-10-12 09:48:26,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 09:48:26,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:48:26,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 09:48:26,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2020-10-12 09:48:26,821 INFO L87 Difference]: Start difference. First operand 129 states and 131 transitions. Second operand 15 states. [2020-10-12 09:48:26,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:48:26,938 INFO L93 Difference]: Finished difference Result 229 states and 232 transitions. [2020-10-12 09:48:26,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 09:48:26,938 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 125 [2020-10-12 09:48:26,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:48:26,940 INFO L225 Difference]: With dead ends: 229 [2020-10-12 09:48:26,940 INFO L226 Difference]: Without dead ends: 132 [2020-10-12 09:48:26,941 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2020-10-12 09:48:26,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-10-12 09:48:26,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 131. [2020-10-12 09:48:26,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-10-12 09:48:26,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 133 transitions. [2020-10-12 09:48:26,955 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 133 transitions. Word has length 125 [2020-10-12 09:48:26,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:48:26,955 INFO L479 AbstractCegarLoop]: Abstraction has 131 states and 133 transitions. [2020-10-12 09:48:26,955 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 09:48:26,956 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 133 transitions. [2020-10-12 09:48:26,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-12 09:48:26,956 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:48:26,956 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:48:26,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-12 09:48:26,957 INFO L427 AbstractCegarLoop]: === Iteration 35 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:48:26,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:48:26,957 INFO L82 PathProgramCache]: Analyzing trace with hash -1915307029, now seen corresponding path program 32 times [2020-10-12 09:48:26,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:48:26,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1659727483] [2020-10-12 09:48:26,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:48:26,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:26,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:26,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:27,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:29,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:29,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-12 09:48:29,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:48:29,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2753 [2020-10-12 09:48:29,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:29,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-12 09:48:29,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:48:29,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-12 09:48:29,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:30,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:48:30,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:30,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:30,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:30,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:48:30,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:30,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:30,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:30,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:30,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:30,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:30,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:30,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-12 09:48:30,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:30,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:30,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:30,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:30,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:30,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:30,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:30,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:30,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:30,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:30,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:30,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 09:48:30,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:30,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:30,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:30,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:30,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:30,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:30,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:30,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:30,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:30,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:30,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:30,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 09:48:30,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:30,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:30,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:30,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:30,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:30,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:30,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:30,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:30,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:30,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:30,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:30,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 09:48:30,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:30,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:30,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:30,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:30,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:30,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:30,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:30,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:30,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:30,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:30,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:30,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 09:48:30,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:30,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:30,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:30,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:30,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:30,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:30,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:30,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:30,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:30,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:30,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:30,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 09:48:30,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:30,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:30,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:30,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:30,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:30,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:30,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:30,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:30,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:30,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:30,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:30,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 09:48:30,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:30,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:30,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:30,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:30,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:30,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:30,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:30,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:30,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:30,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:30,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:30,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 09:48:30,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:30,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:30,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:30,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:30,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:30,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:30,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:30,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:30,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:30,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:30,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:30,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 09:48:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:30,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:30,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:30,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:30,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:30,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:30,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:30,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:30,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:30,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:30,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:30,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-12 09:48:30,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:30,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:30,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:30,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:30,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:30,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:30,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:30,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:30,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:30,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:30,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:30,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 09:48:30,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:30,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:30,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:30,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:30,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:30,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:48:30,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:30,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:30,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:30,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:30,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:30,777 INFO L134 CoverageAnalysis]: Checked inductivity of 628 backedges. 22 proven. 386 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-12 09:48:30,778 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1659727483] [2020-10-12 09:48:30,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:48:30,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-12 09:48:30,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384194361] [2020-10-12 09:48:30,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-12 09:48:30,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:48:30,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-12 09:48:30,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=871, Unknown=0, NotChecked=0, Total=930 [2020-10-12 09:48:30,779 INFO L87 Difference]: Start difference. First operand 131 states and 133 transitions. Second operand 31 states. [2020-10-12 09:48:32,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:48:32,905 INFO L93 Difference]: Finished difference Result 192 states and 207 transitions. [2020-10-12 09:48:32,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-12 09:48:32,906 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 127 [2020-10-12 09:48:32,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:48:32,907 INFO L225 Difference]: With dead ends: 192 [2020-10-12 09:48:32,907 INFO L226 Difference]: Without dead ends: 190 [2020-10-12 09:48:32,908 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=127, Invalid=2035, Unknown=0, NotChecked=0, Total=2162 [2020-10-12 09:48:32,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-10-12 09:48:32,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 184. [2020-10-12 09:48:32,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-10-12 09:48:32,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 198 transitions. [2020-10-12 09:48:32,941 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 198 transitions. Word has length 127 [2020-10-12 09:48:32,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:48:32,942 INFO L479 AbstractCegarLoop]: Abstraction has 184 states and 198 transitions. [2020-10-12 09:48:32,942 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-12 09:48:32,942 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 198 transitions. [2020-10-12 09:48:32,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-12 09:48:32,955 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:48:32,955 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:48:32,956 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-12 09:48:32,956 INFO L427 AbstractCegarLoop]: === Iteration 36 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:48:32,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:48:32,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1317311031, now seen corresponding path program 33 times [2020-10-12 09:48:32,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:48:32,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [207456001] [2020-10-12 09:48:32,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:48:32,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:32,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:32,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:34,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:36,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:36,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-12 09:48:36,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:48:36,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3824 [2020-10-12 09:48:36,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:36,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-12 09:48:36,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:48:36,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-12 09:48:36,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:37,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:48:37,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:37,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:37,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:37,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:48:37,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:37,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:37,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:37,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:37,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:37,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:37,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:37,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 09:48:37,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:37,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:37,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:37,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:37,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:37,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:48:37,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:37,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:37,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:37,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:37,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:37,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-12 09:48:37,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:37,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:37,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:37,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:37,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:37,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:48:37,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:37,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:37,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:37,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:37,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:37,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 09:48:37,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:37,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:37,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:37,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:37,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:37,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:37,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:37,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:37,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:37,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:37,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:37,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 09:48:37,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:37,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:37,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:37,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:37,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:37,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:37,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:37,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:37,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:37,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:37,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:38,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 09:48:38,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:38,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:38,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:38,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:38,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:38,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:48:38,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:38,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:38,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:38,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:38,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:38,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 09:48:38,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:38,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:38,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:38,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:38,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:38,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:48:38,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:38,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:38,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:38,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:38,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:38,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-12 09:48:38,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:38,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:38,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:38,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:38,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:38,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:48:38,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:38,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:38,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:38,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:38,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:38,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-12 09:48:38,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:38,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:38,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:38,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:38,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:38,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:48:38,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:38,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:38,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:38,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:38,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:38,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-12 09:48:38,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:38,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:38,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:38,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:38,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:38,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:48:38,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:38,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:38,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:38,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:38,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:38,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 09:48:38,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:38,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:38,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:38,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:38,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:38,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:48:38,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:38,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:38,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:38,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:38,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:38,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-12 09:48:38,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:38,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:38,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:38,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:38,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:38,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 09:48:38,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:38,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:38,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:38,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:38,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:38,113 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 22 proven. 409 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-10-12 09:48:38,113 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [207456001] [2020-10-12 09:48:38,113 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:48:38,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-10-12 09:48:38,114 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007654671] [2020-10-12 09:48:38,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-10-12 09:48:38,114 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:48:38,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-10-12 09:48:38,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=919, Unknown=0, NotChecked=0, Total=992 [2020-10-12 09:48:38,115 INFO L87 Difference]: Start difference. First operand 184 states and 198 transitions. Second operand 32 states. [2020-10-12 09:48:40,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:48:40,795 INFO L93 Difference]: Finished difference Result 196 states and 210 transitions. [2020-10-12 09:48:40,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-12 09:48:40,796 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 129 [2020-10-12 09:48:40,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:48:40,797 INFO L225 Difference]: With dead ends: 196 [2020-10-12 09:48:40,797 INFO L226 Difference]: Without dead ends: 194 [2020-10-12 09:48:40,799 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=173, Invalid=2179, Unknown=0, NotChecked=0, Total=2352 [2020-10-12 09:48:40,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-10-12 09:48:40,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 139. [2020-10-12 09:48:40,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-10-12 09:48:40,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 141 transitions. [2020-10-12 09:48:40,819 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 141 transitions. Word has length 129 [2020-10-12 09:48:40,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:48:40,820 INFO L479 AbstractCegarLoop]: Abstraction has 139 states and 141 transitions. [2020-10-12 09:48:40,820 INFO L480 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-10-12 09:48:40,820 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 141 transitions. [2020-10-12 09:48:40,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-12 09:48:40,821 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:48:40,821 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:48:40,821 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-12 09:48:40,821 INFO L427 AbstractCegarLoop]: === Iteration 37 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:48:40,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:48:40,822 INFO L82 PathProgramCache]: Analyzing trace with hash 2085114402, now seen corresponding path program 34 times [2020-10-12 09:48:40,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:48:40,822 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1710616771] [2020-10-12 09:48:40,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:48:40,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:40,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:40,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:41,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:41,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-12 09:48:41,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:48:41,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1064 [2020-10-12 09:48:41,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:41,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 09:48:41,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:48:41,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 09:48:41,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:42,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:48:42,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:42,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:42,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:42,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:48:42,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:42,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:42,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:42,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:42,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:42,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:42,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:42,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-12 09:48:42,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:42,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:42,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:42,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:42,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:42,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:42,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:42,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:42,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:42,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:42,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:42,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 09:48:42,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:42,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:42,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:42,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:42,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:42,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:42,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:42,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:42,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:42,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:42,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:42,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 09:48:42,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:42,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:42,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:42,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:42,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:42,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:42,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:42,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:42,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:42,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:42,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:42,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 09:48:42,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:42,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:42,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:42,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:42,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:42,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:42,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:42,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:42,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:42,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:42,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:42,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 09:48:42,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:42,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:42,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:42,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:42,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:42,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:42,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:42,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:42,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:42,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:42,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:42,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 09:48:42,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:42,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:42,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:42,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:42,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:42,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:42,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:42,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:42,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:42,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:42,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:42,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 09:48:42,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:42,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:42,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:42,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:42,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:42,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:42,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:42,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:42,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:42,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:42,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:42,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 09:48:42,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:42,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:42,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:42,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:42,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:42,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:42,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:42,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:42,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:42,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:42,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:42,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 09:48:42,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:42,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:42,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:42,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:42,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:42,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:42,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:42,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:42,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:42,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:42,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:42,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-12 09:48:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:42,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:42,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:42,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:42,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:42,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:42,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:42,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:42,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:42,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:42,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:42,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 09:48:42,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:42,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:42,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:42,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:42,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:42,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:42,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:42,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:42,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:42,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:42,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:42,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-12 09:48:42,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:42,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:42,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:42,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:42,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:42,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:42,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:42,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:42,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:42,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:42,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:42,077 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 24 proven. 144 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2020-10-12 09:48:42,077 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1710616771] [2020-10-12 09:48:42,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:48:42,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-12 09:48:42,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341924553] [2020-10-12 09:48:42,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 09:48:42,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:48:42,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 09:48:42,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=133, Unknown=0, NotChecked=0, Total=240 [2020-10-12 09:48:42,079 INFO L87 Difference]: Start difference. First operand 139 states and 141 transitions. Second operand 16 states. [2020-10-12 09:48:42,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:48:42,228 INFO L93 Difference]: Finished difference Result 247 states and 250 transitions. [2020-10-12 09:48:42,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 09:48:42,229 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 135 [2020-10-12 09:48:42,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:48:42,231 INFO L225 Difference]: With dead ends: 247 [2020-10-12 09:48:42,231 INFO L226 Difference]: Without dead ends: 142 [2020-10-12 09:48:42,231 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=133, Unknown=0, NotChecked=0, Total=240 [2020-10-12 09:48:42,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-10-12 09:48:42,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 141. [2020-10-12 09:48:42,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-10-12 09:48:42,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 143 transitions. [2020-10-12 09:48:42,251 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 143 transitions. Word has length 135 [2020-10-12 09:48:42,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:48:42,252 INFO L479 AbstractCegarLoop]: Abstraction has 141 states and 143 transitions. [2020-10-12 09:48:42,252 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 09:48:42,252 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 143 transitions. [2020-10-12 09:48:42,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-10-12 09:48:42,253 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:48:42,253 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:48:42,253 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-12 09:48:42,253 INFO L427 AbstractCegarLoop]: === Iteration 38 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:48:42,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:48:42,254 INFO L82 PathProgramCache]: Analyzing trace with hash -1610332672, now seen corresponding path program 35 times [2020-10-12 09:48:42,254 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:48:42,254 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [46697630] [2020-10-12 09:48:42,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:48:42,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:42,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:42,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:43,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:45,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:45,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-12 09:48:45,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:48:45,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3495 [2020-10-12 09:48:45,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:45,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-12 09:48:45,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:48:45,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 155 [2020-10-12 09:48:45,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:46,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:48:46,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:46,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:46,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:46,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:48:46,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:46,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:46,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:46,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:46,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:46,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:46,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:46,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 09:48:46,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:46,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:46,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:46,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:46,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:46,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:46,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:46,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:46,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:46,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:46,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:46,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-12 09:48:46,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:46,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:46,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:46,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:46,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:46,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:46,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:46,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:46,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:46,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:46,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:46,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 09:48:46,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:46,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:46,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:46,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:46,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:46,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:48:46,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:46,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:46,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:46,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:46,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:46,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 09:48:46,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:46,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:46,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:46,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:46,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:46,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:46,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:46,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:46,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:46,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:46,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:46,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 09:48:46,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:46,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:46,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:46,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:46,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:46,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:48:46,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:46,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:46,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:46,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:46,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:46,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 09:48:46,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:46,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:46,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:46,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:46,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:46,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:48:46,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:46,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:46,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:46,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:46,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:46,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-12 09:48:46,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:46,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:46,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:46,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:46,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:46,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:46,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:46,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:46,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:46,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:46,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:46,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-12 09:48:46,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:46,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:46,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:46,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:46,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:46,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:48:46,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:46,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:46,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:46,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:46,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:46,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-12 09:48:46,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:46,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:46,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:46,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:46,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:46,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:46,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:46,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:46,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:46,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:46,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:46,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 09:48:46,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:46,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:46,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:46,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:46,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:46,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:46,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:46,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:46,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:46,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:46,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:46,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-12 09:48:46,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:46,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:46,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:46,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:46,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:46,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:48:46,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:46,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:46,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:46,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:46,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:46,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-12 09:48:47,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:47,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:47,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:47,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:47,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:47,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:48:47,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:47,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:47,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:47,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:47,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:47,054 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 24 proven. 457 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-10-12 09:48:47,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [46697630] [2020-10-12 09:48:47,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:48:47,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2020-10-12 09:48:47,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782237049] [2020-10-12 09:48:47,055 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-10-12 09:48:47,055 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:48:47,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-10-12 09:48:47,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=993, Unknown=0, NotChecked=0, Total=1056 [2020-10-12 09:48:47,056 INFO L87 Difference]: Start difference. First operand 141 states and 143 transitions. Second operand 33 states. [2020-10-12 09:48:49,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:48:49,678 INFO L93 Difference]: Finished difference Result 206 states and 222 transitions. [2020-10-12 09:48:49,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-12 09:48:49,679 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 137 [2020-10-12 09:48:49,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:48:49,681 INFO L225 Difference]: With dead ends: 206 [2020-10-12 09:48:49,681 INFO L226 Difference]: Without dead ends: 204 [2020-10-12 09:48:49,682 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=140, Invalid=2410, Unknown=0, NotChecked=0, Total=2550 [2020-10-12 09:48:49,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2020-10-12 09:48:49,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 198. [2020-10-12 09:48:49,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-10-12 09:48:49,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 213 transitions. [2020-10-12 09:48:49,710 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 213 transitions. Word has length 137 [2020-10-12 09:48:49,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:48:49,711 INFO L479 AbstractCegarLoop]: Abstraction has 198 states and 213 transitions. [2020-10-12 09:48:49,711 INFO L480 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-10-12 09:48:49,711 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 213 transitions. [2020-10-12 09:48:49,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-12 09:48:49,712 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:48:49,712 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:48:49,713 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-12 09:48:49,713 INFO L427 AbstractCegarLoop]: === Iteration 39 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:48:49,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:48:49,713 INFO L82 PathProgramCache]: Analyzing trace with hash -997016994, now seen corresponding path program 36 times [2020-10-12 09:48:49,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:48:49,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [212789022] [2020-10-12 09:48:49,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:48:49,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:49,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:49,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:50,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:53,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:53,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-12 09:48:53,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:48:53,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3753 [2020-10-12 09:48:53,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:53,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-12 09:48:53,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:48:53,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-10-12 09:48:53,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:54,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:48:54,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:54,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:54,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:54,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:48:54,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:54,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:54,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:54,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:54,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:54,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:54,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:54,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 09:48:54,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:54,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:54,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:54,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:54,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:54,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:54,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:54,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:54,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:54,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:54,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:54,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 09:48:54,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:54,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:54,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:54,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:54,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:54,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:48:54,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:54,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:54,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:54,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:54,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:54,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-12 09:48:54,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:54,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:54,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:54,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:54,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:54,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:54,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:54,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:54,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:54,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:54,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:54,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 09:48:54,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:54,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:54,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:54,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:54,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:54,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:54,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:54,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:54,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:54,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:54,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:54,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 09:48:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:54,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:54,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:54,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:54,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:54,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:54,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:54,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:54,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:54,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:54,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:54,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-12 09:48:54,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:54,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:54,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:54,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:54,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:54,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:48:54,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:54,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:54,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:54,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:54,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:54,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 09:48:54,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:54,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:54,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:54,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:54,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:54,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:54,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:54,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:54,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:54,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:54,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:54,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 09:48:54,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:54,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:54,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:54,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:54,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:54,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:54,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:54,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:54,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:54,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:54,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:54,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 09:48:54,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:54,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:54,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:54,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:54,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:54,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:54,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:54,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:54,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:54,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:54,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:54,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-12 09:48:54,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:54,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:54,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:54,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:54,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:54,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:54,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:54,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:54,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:54,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:54,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:54,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-12 09:48:54,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:54,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:54,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:54,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:54,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:54,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:54,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:54,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:54,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:54,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:54,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:54,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 09:48:54,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:54,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:54,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:54,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:54,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:54,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:54,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:54,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:48:54,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:54,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:48:54,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:54,893 INFO L134 CoverageAnalysis]: Checked inductivity of 772 backedges. 24 proven. 482 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2020-10-12 09:48:54,893 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [212789022] [2020-10-12 09:48:54,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:48:54,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2020-10-12 09:48:54,894 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715427529] [2020-10-12 09:48:54,894 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-10-12 09:48:54,894 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:48:54,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-10-12 09:48:54,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=1030, Unknown=0, NotChecked=0, Total=1122 [2020-10-12 09:48:54,895 INFO L87 Difference]: Start difference. First operand 198 states and 213 transitions. Second operand 34 states. [2020-10-12 09:48:57,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:48:57,699 INFO L93 Difference]: Finished difference Result 210 states and 225 transitions. [2020-10-12 09:48:57,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-12 09:48:57,700 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 139 [2020-10-12 09:48:57,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:48:57,701 INFO L225 Difference]: With dead ends: 210 [2020-10-12 09:48:57,701 INFO L226 Difference]: Without dead ends: 208 [2020-10-12 09:48:57,703 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=184, Invalid=2468, Unknown=0, NotChecked=0, Total=2652 [2020-10-12 09:48:57,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-10-12 09:48:57,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 149. [2020-10-12 09:48:57,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-10-12 09:48:57,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 151 transitions. [2020-10-12 09:48:57,726 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 151 transitions. Word has length 139 [2020-10-12 09:48:57,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:48:57,727 INFO L479 AbstractCegarLoop]: Abstraction has 149 states and 151 transitions. [2020-10-12 09:48:57,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-10-12 09:48:57,727 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 151 transitions. [2020-10-12 09:48:57,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-12 09:48:57,728 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:48:57,728 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:48:57,728 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-12 09:48:57,728 INFO L427 AbstractCegarLoop]: === Iteration 40 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:48:57,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:48:57,729 INFO L82 PathProgramCache]: Analyzing trace with hash 518584119, now seen corresponding path program 37 times [2020-10-12 09:48:57,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:48:57,729 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [447554101] [2020-10-12 09:48:57,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:48:57,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:57,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:57,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:58,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:58,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-12 09:48:58,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:48:58,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1133 [2020-10-12 09:48:58,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:58,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 09:48:58,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:48:58,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-12 09:48:58,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:59,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:48:59,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:59,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:59,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:59,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:48:59,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:59,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:48:59,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:59,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:59,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:48:59,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:59,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:59,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 09:48:59,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:59,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:59,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:59,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:59,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:59,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:59,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:59,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:59,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:59,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:59,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:59,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-12 09:48:59,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:59,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:59,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:59,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:59,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:59,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:59,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:59,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:59,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:59,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:59,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:59,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 09:48:59,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:59,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:59,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:59,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:59,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:59,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:59,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:59,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:59,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:59,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:59,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:59,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 09:48:59,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:59,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:59,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:59,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:59,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:59,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:59,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:59,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:59,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:59,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:59,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:59,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 09:48:59,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:59,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:59,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:59,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:59,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:59,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:59,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:59,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:59,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:59,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:59,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:59,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 09:48:59,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:59,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:59,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:59,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:59,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:59,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:59,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:59,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:59,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:59,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:59,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:59,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-12 09:48:59,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:59,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:59,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:59,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:59,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:59,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:59,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:59,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:59,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:59,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:59,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:59,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-12 09:48:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:59,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:59,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:59,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:59,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:59,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:59,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:59,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:59,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:59,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:59,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:59,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-12 09:48:59,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:59,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:59,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:59,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:59,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:59,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:59,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:59,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:59,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:59,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:59,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:59,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 09:48:59,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:59,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:59,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:59,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:59,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:59,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:59,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:59,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:59,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:59,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:59,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:59,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-12 09:48:59,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:59,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:59,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:59,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:59,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:59,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:59,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:59,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:59,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:59,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:59,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:59,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-12 09:48:59,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:59,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:59,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:59,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:59,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:59,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:59,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:59,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:59,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:59,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:59,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:59,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-12 09:48:59,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:59,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:59,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:48:59,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:48:59,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:48:59,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:48:59,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:48:59,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:48:59,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:48:59,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:48:59,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:48:59,077 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 26 proven. 169 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2020-10-12 09:48:59,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [447554101] [2020-10-12 09:48:59,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:48:59,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-12 09:48:59,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605757719] [2020-10-12 09:48:59,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-12 09:48:59,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:48:59,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-12 09:48:59,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2020-10-12 09:48:59,079 INFO L87 Difference]: Start difference. First operand 149 states and 151 transitions. Second operand 17 states. [2020-10-12 09:48:59,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:48:59,197 INFO L93 Difference]: Finished difference Result 265 states and 268 transitions. [2020-10-12 09:48:59,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-12 09:48:59,197 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 145 [2020-10-12 09:48:59,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:48:59,198 INFO L225 Difference]: With dead ends: 265 [2020-10-12 09:48:59,198 INFO L226 Difference]: Without dead ends: 152 [2020-10-12 09:48:59,199 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2020-10-12 09:48:59,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-10-12 09:48:59,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 151. [2020-10-12 09:48:59,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2020-10-12 09:48:59,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 153 transitions. [2020-10-12 09:48:59,219 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 153 transitions. Word has length 145 [2020-10-12 09:48:59,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:48:59,220 INFO L479 AbstractCegarLoop]: Abstraction has 151 states and 153 transitions. [2020-10-12 09:48:59,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-12 09:48:59,220 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 153 transitions. [2020-10-12 09:48:59,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-12 09:48:59,221 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:48:59,221 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:48:59,221 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-10-12 09:48:59,222 INFO L427 AbstractCegarLoop]: === Iteration 41 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:48:59,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:48:59,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1222913429, now seen corresponding path program 38 times [2020-10-12 09:48:59,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:48:59,222 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [287369627] [2020-10-12 09:48:59,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:48:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:48:59,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:48:59,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:00,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:02,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:02,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-12 09:49:02,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:49:02,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3664 [2020-10-12 09:49:02,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:02,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-12 09:49:02,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:49:02,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-12 09:49:02,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:04,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:49:04,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:04,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:04,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:04,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:49:04,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:04,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:04,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:04,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:04,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:04,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:04,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:04,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 09:49:04,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:04,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:04,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:04,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:04,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:04,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:04,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:04,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:04,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:04,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:04,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:04,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 09:49:04,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:04,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:04,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:04,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:04,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:04,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:04,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:04,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:04,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:04,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:04,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:04,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-12 09:49:04,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:04,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:04,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:04,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:04,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:04,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:04,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:04,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:04,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:04,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:04,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:04,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 09:49:04,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:04,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:04,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:04,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:04,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:04,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:04,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:04,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:04,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:04,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:04,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:04,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 09:49:04,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:04,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:04,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:04,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:04,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:04,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:04,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:04,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:04,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:04,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:04,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:04,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-12 09:49:04,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:04,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:04,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:04,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:04,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:04,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:49:04,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:04,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:04,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:04,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:04,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:04,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 09:49:04,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:04,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:04,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:04,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:04,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:04,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:04,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:04,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:04,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:04,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:04,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:04,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 09:49:04,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:04,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:04,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:04,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:04,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:04,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:04,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:04,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:04,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:04,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:04,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:04,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 09:49:04,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:04,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:04,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:04,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:04,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:04,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:04,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:04,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:04,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:04,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:04,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:04,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-12 09:49:04,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:04,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:04,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:04,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:04,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:04,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:04,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:04,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:04,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:04,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:04,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:04,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-12 09:49:04,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:04,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:04,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:04,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:04,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:04,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:04,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:04,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:04,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:04,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:04,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:04,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 09:49:04,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:04,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:04,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:04,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:04,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:04,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:04,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:04,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:04,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:04,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:04,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:04,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-12 09:49:04,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:04,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:04,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:04,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:04,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:04,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:04,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:04,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:04,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:04,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:04,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:04,453 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 26 proven. 534 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-10-12 09:49:04,454 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [287369627] [2020-10-12 09:49:04,454 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:49:04,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2020-10-12 09:49:04,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273763935] [2020-10-12 09:49:04,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-10-12 09:49:04,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:49:04,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-10-12 09:49:04,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=1123, Unknown=0, NotChecked=0, Total=1190 [2020-10-12 09:49:04,455 INFO L87 Difference]: Start difference. First operand 151 states and 153 transitions. Second operand 35 states. [2020-10-12 09:49:07,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:49:07,588 INFO L93 Difference]: Finished difference Result 220 states and 237 transitions. [2020-10-12 09:49:07,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-12 09:49:07,588 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 147 [2020-10-12 09:49:07,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:49:07,590 INFO L225 Difference]: With dead ends: 220 [2020-10-12 09:49:07,590 INFO L226 Difference]: Without dead ends: 218 [2020-10-12 09:49:07,591 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=148, Invalid=2714, Unknown=0, NotChecked=0, Total=2862 [2020-10-12 09:49:07,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-12 09:49:07,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 212. [2020-10-12 09:49:07,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-10-12 09:49:07,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 228 transitions. [2020-10-12 09:49:07,627 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 228 transitions. Word has length 147 [2020-10-12 09:49:07,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:49:07,627 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 228 transitions. [2020-10-12 09:49:07,627 INFO L480 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-10-12 09:49:07,627 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 228 transitions. [2020-10-12 09:49:07,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-12 09:49:07,628 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:49:07,628 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:49:07,629 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-12 09:49:07,629 INFO L427 AbstractCegarLoop]: === Iteration 42 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:49:07,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:49:07,629 INFO L82 PathProgramCache]: Analyzing trace with hash -521452429, now seen corresponding path program 39 times [2020-10-12 09:49:07,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:49:07,629 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1785769348] [2020-10-12 09:49:07,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:49:07,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:07,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:07,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:08,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:11,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:11,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-12 09:49:11,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:49:11,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4234 [2020-10-12 09:49:11,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:11,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-12 09:49:11,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:49:11,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-12 09:49:11,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:14,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:49:14,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:14,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:14,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:14,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:49:14,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:14,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:14,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:14,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:14,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:14,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:14,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:14,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-12 09:49:14,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:14,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:14,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:14,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:14,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:14,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:14,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:14,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:14,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:14,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:14,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:14,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 09:49:14,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:14,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:14,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:14,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:14,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:14,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:14,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:14,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:14,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:14,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:14,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:14,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-12 09:49:14,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:14,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:14,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:14,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:14,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:14,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:14,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:14,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:14,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:14,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:14,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:14,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 09:49:14,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:14,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:14,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:14,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:14,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:14,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:49:14,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:14,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:14,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:14,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:14,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:14,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 09:49:14,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:14,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:14,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:14,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:14,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:14,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:14,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:14,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:14,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:14,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:14,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:14,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 09:49:14,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:14,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:14,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:14,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:14,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:14,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:14,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:14,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:14,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:14,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:14,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:14,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 09:49:14,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:14,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:14,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:14,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:14,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:14,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:14,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:14,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:14,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:14,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:14,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:14,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 09:49:14,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:14,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:14,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:14,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:14,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:14,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:14,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:14,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:14,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:14,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:14,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:14,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-12 09:49:14,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:14,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:14,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:14,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:14,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:14,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:49:14,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:14,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:14,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:14,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:14,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:14,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 09:49:14,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:14,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:14,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:14,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:14,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:14,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:14,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:14,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:14,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:14,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:14,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:14,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 09:49:14,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:14,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:14,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:14,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:14,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:14,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:49:14,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:14,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:14,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:14,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:14,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:14,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-12 09:49:14,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:14,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:14,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:14,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:14,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:14,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:49:14,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:14,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:14,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:14,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:14,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:14,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-12 09:49:14,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:14,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:14,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:14,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:14,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:14,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:49:14,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:14,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:14,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:14,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:14,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:14,460 INFO L134 CoverageAnalysis]: Checked inductivity of 901 backedges. 26 proven. 561 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-10-12 09:49:14,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1785769348] [2020-10-12 09:49:14,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:49:14,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2020-10-12 09:49:14,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426849385] [2020-10-12 09:49:14,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-10-12 09:49:14,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:49:14,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-10-12 09:49:14,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=1162, Unknown=0, NotChecked=0, Total=1260 [2020-10-12 09:49:14,462 INFO L87 Difference]: Start difference. First operand 212 states and 228 transitions. Second operand 36 states. [2020-10-12 09:49:17,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:49:17,699 INFO L93 Difference]: Finished difference Result 224 states and 240 transitions. [2020-10-12 09:49:17,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-12 09:49:17,700 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 149 [2020-10-12 09:49:17,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:49:17,701 INFO L225 Difference]: With dead ends: 224 [2020-10-12 09:49:17,701 INFO L226 Difference]: Without dead ends: 222 [2020-10-12 09:49:17,703 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=195, Invalid=2775, Unknown=0, NotChecked=0, Total=2970 [2020-10-12 09:49:17,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2020-10-12 09:49:17,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 159. [2020-10-12 09:49:17,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-10-12 09:49:17,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 161 transitions. [2020-10-12 09:49:17,727 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 161 transitions. Word has length 149 [2020-10-12 09:49:17,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:49:17,728 INFO L479 AbstractCegarLoop]: Abstraction has 159 states and 161 transitions. [2020-10-12 09:49:17,728 INFO L480 AbstractCegarLoop]: Interpolant automaton has 36 states. [2020-10-12 09:49:17,728 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 161 transitions. [2020-10-12 09:49:17,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-12 09:49:17,729 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:49:17,729 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:49:17,729 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-10-12 09:49:17,729 INFO L427 AbstractCegarLoop]: === Iteration 43 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:49:17,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:49:17,730 INFO L82 PathProgramCache]: Analyzing trace with hash -2067367476, now seen corresponding path program 40 times [2020-10-12 09:49:17,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:49:17,730 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1983787123] [2020-10-12 09:49:17,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:49:17,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:17,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:17,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:19,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:19,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-10-12 09:49:19,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:49:19,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1311 [2020-10-12 09:49:19,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:19,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-12 09:49:19,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:49:19,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-12 09:49:19,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:19,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:49:19,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:19,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:19,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:19,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:49:19,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:19,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:19,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:19,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:19,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:19,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:19,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:19,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 09:49:19,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:19,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:19,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:19,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:19,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:19,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:49:19,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:19,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:19,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:49:19,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:19,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:19,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 09:49:19,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:19,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:19,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:19,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:19,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:19,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:49:19,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:19,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:19,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:49:19,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:19,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:19,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-12 09:49:19,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:19,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:19,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:19,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:19,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:19,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:49:19,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:19,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:19,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:49:19,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:19,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:19,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 09:49:19,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:19,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:19,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:19,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:19,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:19,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:49:19,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:19,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:19,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:49:19,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:19,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:19,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 09:49:19,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:19,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:19,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:19,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:19,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:19,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:49:19,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:19,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:19,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:49:19,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:19,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:19,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-12 09:49:19,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:19,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:19,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:19,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:19,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:19,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:49:19,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:19,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:19,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:49:19,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:19,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:19,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 09:49:19,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:19,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:19,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:19,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:19,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:19,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:49:19,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:19,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:19,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:49:19,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:19,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:19,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 09:49:19,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:19,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:19,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:19,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:19,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:19,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:49:19,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:19,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:19,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:49:19,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:19,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:19,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 09:49:19,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:19,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:19,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:19,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:19,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:19,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:49:19,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:19,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:19,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:49:19,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:19,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:19,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-12 09:49:19,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:19,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:19,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:19,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:19,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:19,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:49:19,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:19,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:19,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:49:19,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:19,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:19,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-12 09:49:19,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:19,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:19,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:19,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:19,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:19,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:49:19,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:19,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:19,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:49:19,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:19,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:19,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 09:49:19,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:19,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:19,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:19,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:19,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:19,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:49:19,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:19,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:19,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:49:19,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:19,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:19,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-12 09:49:19,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:19,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:19,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:19,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:19,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:19,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:19,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:19,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:19,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:49:19,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:19,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:19,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-12 09:49:19,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:19,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:19,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:19,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:19,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:19,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:49:19,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:19,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:19,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:49:19,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:19,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:19,286 INFO L134 CoverageAnalysis]: Checked inductivity of 980 backedges. 28 proven. 196 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2020-10-12 09:49:19,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1983787123] [2020-10-12 09:49:19,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:49:19,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-12 09:49:19,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235795510] [2020-10-12 09:49:19,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-12 09:49:19,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:49:19,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-12 09:49:19,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=168, Unknown=0, NotChecked=0, Total=306 [2020-10-12 09:49:19,288 INFO L87 Difference]: Start difference. First operand 159 states and 161 transitions. Second operand 18 states. [2020-10-12 09:49:19,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:49:19,468 INFO L93 Difference]: Finished difference Result 283 states and 286 transitions. [2020-10-12 09:49:19,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-12 09:49:19,469 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 155 [2020-10-12 09:49:19,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:49:19,470 INFO L225 Difference]: With dead ends: 283 [2020-10-12 09:49:19,471 INFO L226 Difference]: Without dead ends: 162 [2020-10-12 09:49:19,472 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=168, Unknown=0, NotChecked=0, Total=306 [2020-10-12 09:49:19,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-12 09:49:19,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 161. [2020-10-12 09:49:19,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-10-12 09:49:19,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 163 transitions. [2020-10-12 09:49:19,492 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 163 transitions. Word has length 155 [2020-10-12 09:49:19,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:49:19,493 INFO L479 AbstractCegarLoop]: Abstraction has 161 states and 163 transitions. [2020-10-12 09:49:19,493 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-12 09:49:19,493 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 163 transitions. [2020-10-12 09:49:19,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-12 09:49:19,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:49:19,494 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:49:19,495 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-10-12 09:49:19,495 INFO L427 AbstractCegarLoop]: === Iteration 44 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:49:19,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:49:19,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1699753302, now seen corresponding path program 41 times [2020-10-12 09:49:19,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:49:19,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [405025084] [2020-10-12 09:49:19,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:49:19,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:19,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:19,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:20,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:23,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:23,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-12 09:49:23,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:49:23,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4142 [2020-10-12 09:49:23,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:23,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-12 09:49:23,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:49:23,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-12 09:49:23,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:25,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:49:25,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:25,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:25,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:25,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:49:25,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:25,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:25,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:25,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:25,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:25,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:25,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:25,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-12 09:49:25,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:25,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:25,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:25,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:25,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:25,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:25,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:25,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:25,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:25,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:25,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:25,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 09:49:25,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:25,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:25,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:25,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:25,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:25,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:25,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:25,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:25,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:25,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:25,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:25,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-12 09:49:25,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:25,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:25,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:25,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:25,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:25,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:25,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:25,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:25,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:25,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:25,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:25,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 09:49:25,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:25,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:25,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:25,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:25,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:25,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:25,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:25,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:25,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:25,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:25,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:25,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 09:49:25,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:25,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:25,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:25,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:25,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:25,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:25,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:25,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:25,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:25,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:25,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:25,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 09:49:25,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:25,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:25,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:25,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:25,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:25,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:25,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:25,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:25,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:25,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:25,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:25,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 09:49:25,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:25,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:25,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:25,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:25,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:25,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:25,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:25,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:25,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:25,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:25,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:25,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 09:49:25,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:25,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:25,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:25,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:25,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:25,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:25,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:25,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:25,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:25,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:25,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:25,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-12 09:49:25,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:25,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:25,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:25,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:25,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:25,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:49:25,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:25,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:25,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:25,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:25,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:25,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 09:49:25,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:25,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:25,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:25,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:25,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:25,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:49:25,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:25,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:25,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:25,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:25,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:25,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 09:49:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:25,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:25,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:25,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:25,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:25,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:25,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:25,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:25,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:25,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:25,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:25,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-12 09:49:25,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:25,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:25,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:25,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:25,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:25,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:25,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:25,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:25,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:25,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:25,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:25,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-12 09:49:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:25,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:25,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:25,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:25,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:25,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:25,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:25,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:25,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:25,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:25,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:25,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-12 09:49:25,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:25,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:25,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:25,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:25,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:25,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:25,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:25,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:25,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:25,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:25,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:25,208 INFO L134 CoverageAnalysis]: Checked inductivity of 1009 backedges. 28 proven. 617 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2020-10-12 09:49:25,208 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [405025084] [2020-10-12 09:49:25,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:49:25,208 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2020-10-12 09:49:25,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420435850] [2020-10-12 09:49:25,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-10-12 09:49:25,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:49:25,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-10-12 09:49:25,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=1261, Unknown=0, NotChecked=0, Total=1332 [2020-10-12 09:49:25,210 INFO L87 Difference]: Start difference. First operand 161 states and 163 transitions. Second operand 37 states. [2020-10-12 09:49:28,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:49:28,253 INFO L93 Difference]: Finished difference Result 234 states and 252 transitions. [2020-10-12 09:49:28,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-12 09:49:28,255 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 157 [2020-10-12 09:49:28,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:49:28,256 INFO L225 Difference]: With dead ends: 234 [2020-10-12 09:49:28,256 INFO L226 Difference]: Without dead ends: 232 [2020-10-12 09:49:28,258 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=151, Invalid=2929, Unknown=0, NotChecked=0, Total=3080 [2020-10-12 09:49:28,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-10-12 09:49:28,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 226. [2020-10-12 09:49:28,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-12 09:49:28,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 243 transitions. [2020-10-12 09:49:28,289 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 243 transitions. Word has length 157 [2020-10-12 09:49:28,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:49:28,289 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 243 transitions. [2020-10-12 09:49:28,289 INFO L480 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-10-12 09:49:28,289 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 243 transitions. [2020-10-12 09:49:28,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-12 09:49:28,290 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:49:28,290 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:49:28,291 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-10-12 09:49:28,291 INFO L427 AbstractCegarLoop]: === Iteration 45 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:49:28,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:49:28,291 INFO L82 PathProgramCache]: Analyzing trace with hash -609850360, now seen corresponding path program 42 times [2020-10-12 09:49:28,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:49:28,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2118676844] [2020-10-12 09:49:28,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:49:28,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:28,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:28,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:29,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:32,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:32,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-10-12 09:49:32,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:49:32,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4488 [2020-10-12 09:49:32,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:32,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-12 09:49:32,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:49:32,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-12 09:49:32,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:35,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:49:35,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:35,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:35,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:35,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:49:35,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:35,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:35,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:35,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:35,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:35,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:35,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:35,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 09:49:35,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:35,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:35,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:35,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:35,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:35,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:35,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:35,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:35,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:35,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:35,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:35,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 09:49:35,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:35,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:35,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:35,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:35,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:35,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:49:35,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:35,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:35,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:35,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:35,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:35,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 09:49:35,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:35,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:35,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:35,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:35,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:35,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:49:35,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:35,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:35,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:35,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:35,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:35,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 09:49:35,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:35,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:35,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:35,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:35,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:35,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:35,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:35,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:35,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:35,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:35,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:35,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 09:49:35,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:35,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:35,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:35,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:35,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:35,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:49:35,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:35,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:35,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:35,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:35,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:35,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 09:49:35,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:35,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:35,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:35,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:35,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:35,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:49:35,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:35,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:35,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:35,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:35,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:35,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 09:49:35,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:35,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:35,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:35,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:35,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:35,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:49:35,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:35,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:35,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:35,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:35,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:35,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 09:49:35,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:35,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:35,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:35,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:35,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:35,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:49:35,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:35,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:35,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:35,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:35,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:35,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-12 09:49:35,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:35,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:35,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:35,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:35,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:35,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:49:35,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:35,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:35,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:35,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:35,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:35,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 09:49:35,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:35,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:35,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:35,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:35,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:35,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:49:35,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:35,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:35,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:35,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:35,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:35,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-12 09:49:35,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:35,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:35,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:35,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:35,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:35,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:49:35,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:35,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:35,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:35,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:35,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:35,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-12 09:49:35,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:35,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:35,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:35,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:35,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:35,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:49:35,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:35,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:35,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:35,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:35,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:35,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 09:49:35,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:35,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:35,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:35,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:35,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:35,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:49:35,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:35,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:35,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:35,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:35,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:35,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-12 09:49:35,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:35,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:35,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:35,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:35,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:35,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:49:35,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:35,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:35,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:35,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:35,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:35,332 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 28 proven. 646 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2020-10-12 09:49:35,333 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2118676844] [2020-10-12 09:49:35,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:49:35,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2020-10-12 09:49:35,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400474219] [2020-10-12 09:49:35,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-10-12 09:49:35,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:49:35,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-10-12 09:49:35,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1302, Unknown=0, NotChecked=0, Total=1406 [2020-10-12 09:49:35,336 INFO L87 Difference]: Start difference. First operand 226 states and 243 transitions. Second operand 38 states. [2020-10-12 09:49:38,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:49:38,711 INFO L93 Difference]: Finished difference Result 238 states and 255 transitions. [2020-10-12 09:49:38,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-12 09:49:38,713 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 159 [2020-10-12 09:49:38,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:49:38,714 INFO L225 Difference]: With dead ends: 238 [2020-10-12 09:49:38,714 INFO L226 Difference]: Without dead ends: 236 [2020-10-12 09:49:38,715 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 404 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=206, Invalid=3100, Unknown=0, NotChecked=0, Total=3306 [2020-10-12 09:49:38,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-12 09:49:38,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 169. [2020-10-12 09:49:38,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-10-12 09:49:38,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 171 transitions. [2020-10-12 09:49:38,744 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 171 transitions. Word has length 159 [2020-10-12 09:49:38,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:49:38,745 INFO L479 AbstractCegarLoop]: Abstraction has 169 states and 171 transitions. [2020-10-12 09:49:38,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-10-12 09:49:38,745 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 171 transitions. [2020-10-12 09:49:38,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-12 09:49:38,750 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:49:38,750 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:49:38,751 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-10-12 09:49:38,751 INFO L427 AbstractCegarLoop]: === Iteration 46 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:49:38,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:49:38,751 INFO L82 PathProgramCache]: Analyzing trace with hash 549075425, now seen corresponding path program 43 times [2020-10-12 09:49:38,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:49:38,752 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [240540905] [2020-10-12 09:49:38,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:49:38,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:38,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:38,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:40,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:40,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-10-12 09:49:40,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:49:40,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1670 [2020-10-12 09:49:40,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:40,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-12 09:49:40,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:49:40,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-12 09:49:40,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:40,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:49:40,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:40,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:40,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:40,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:49:40,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:40,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:40,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:40,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:40,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:40,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:40,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:40,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-12 09:49:40,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:40,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:40,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:40,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:40,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:40,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:49:40,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:40,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:40,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:49:40,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:40,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:40,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 09:49:40,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:40,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:40,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:40,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:40,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:40,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:49:40,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:40,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:40,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:49:40,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:40,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:40,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-12 09:49:40,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:40,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:40,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:40,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:40,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:40,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:49:40,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:40,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:40,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:49:40,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:40,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:40,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 09:49:40,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:40,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:40,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:40,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:40,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:40,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:49:40,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:40,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:40,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:49:40,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:40,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:40,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 09:49:40,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:40,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:40,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:40,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:40,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:40,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:49:40,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:40,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:40,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:49:40,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:40,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:40,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 09:49:40,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:40,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:40,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:40,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:40,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:40,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:49:40,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:40,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:40,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:49:40,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:40,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:40,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 09:49:40,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:40,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:40,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:40,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:40,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:40,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:49:40,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:40,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:40,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:49:40,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:40,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:40,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 09:49:40,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:40,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:40,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:40,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:40,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:40,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:49:40,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:40,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:40,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:49:40,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:40,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:40,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-12 09:49:40,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:40,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:40,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:40,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:40,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:40,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:49:40,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:40,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:40,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:49:40,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:40,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:40,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 09:49:40,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:40,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:40,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:40,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:40,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:40,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:49:40,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:40,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:40,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:49:40,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:40,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:40,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 09:49:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:40,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:40,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:40,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:40,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:40,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:49:40,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:40,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:40,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:49:40,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:40,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:40,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-12 09:49:40,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:40,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:40,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:40,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:40,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:40,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:49:40,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:40,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:40,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:49:40,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:40,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:40,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-12 09:49:40,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:40,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:40,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:40,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:40,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:40,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:49:40,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:40,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:40,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:49:40,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:40,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:40,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-12 09:49:40,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:40,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:40,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:40,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:40,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:40,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:40,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:40,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:40,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:49:40,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:40,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:40,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-12 09:49:40,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:40,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:40,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:40,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:40,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:40,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:49:40,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:40,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:40,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:49:40,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:40,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:40,710 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 30 proven. 225 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2020-10-12 09:49:40,710 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [240540905] [2020-10-12 09:49:40,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:49:40,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-12 09:49:40,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949785916] [2020-10-12 09:49:40,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-12 09:49:40,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:49:40,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-12 09:49:40,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=187, Unknown=0, NotChecked=0, Total=342 [2020-10-12 09:49:40,712 INFO L87 Difference]: Start difference. First operand 169 states and 171 transitions. Second operand 19 states. [2020-10-12 09:49:40,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:49:40,901 INFO L93 Difference]: Finished difference Result 301 states and 304 transitions. [2020-10-12 09:49:40,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 09:49:40,902 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 165 [2020-10-12 09:49:40,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:49:40,903 INFO L225 Difference]: With dead ends: 301 [2020-10-12 09:49:40,903 INFO L226 Difference]: Without dead ends: 172 [2020-10-12 09:49:40,904 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=187, Unknown=0, NotChecked=0, Total=342 [2020-10-12 09:49:40,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-10-12 09:49:40,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 171. [2020-10-12 09:49:40,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-10-12 09:49:40,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 173 transitions. [2020-10-12 09:49:40,923 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 173 transitions. Word has length 165 [2020-10-12 09:49:40,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:49:40,923 INFO L479 AbstractCegarLoop]: Abstraction has 171 states and 173 transitions. [2020-10-12 09:49:40,923 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-12 09:49:40,923 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 173 transitions. [2020-10-12 09:49:40,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-12 09:49:40,924 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:49:40,924 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:49:40,924 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-10-12 09:49:40,924 INFO L427 AbstractCegarLoop]: === Iteration 47 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:49:40,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:49:40,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1663604031, now seen corresponding path program 44 times [2020-10-12 09:49:40,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:49:40,925 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [987876348] [2020-10-12 09:49:40,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:49:40,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:40,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:40,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:42,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:45,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:45,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-10-12 09:49:45,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:49:45,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-12 09:49:45,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:45,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-12 09:49:45,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:49:45,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 191 [2020-10-12 09:49:45,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:47,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:49:47,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:47,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:47,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:47,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:49:47,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:47,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:47,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:47,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:47,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:47,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:47,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:47,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 09:49:47,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:47,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:47,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:47,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:47,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:47,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:47,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:47,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:47,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:47,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:47,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:47,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 09:49:47,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:47,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:47,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:47,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:47,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:47,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:47,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:47,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:47,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:47,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:47,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:47,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 09:49:47,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:47,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:47,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:47,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:47,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:47,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:47,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:47,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:47,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:47,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:47,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:47,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 09:49:47,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:47,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:47,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:47,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:47,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:47,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:47,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:47,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:47,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:47,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:47,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:47,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 09:49:47,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:47,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:47,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:47,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:47,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:47,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:47,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:47,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:47,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:47,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:47,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:47,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 09:49:47,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:47,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:47,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:47,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:47,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:47,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:47,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:47,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:47,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:47,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:47,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:47,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 09:49:47,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:47,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:47,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:47,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:47,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:47,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:49:47,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:47,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:47,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:47,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:47,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:47,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 09:49:47,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:47,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:47,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:47,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:47,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:47,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:47,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:47,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:47,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:47,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:47,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:47,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-12 09:49:47,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:47,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:47,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:47,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:47,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:47,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:47,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:47,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:47,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:47,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:47,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:47,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 09:49:47,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:47,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:47,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:47,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:47,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:47,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:49:47,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:47,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:47,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:47,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:47,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:47,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-12 09:49:47,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:47,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:47,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:47,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:47,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:47,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:47,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:47,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:47,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:47,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:47,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:47,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-12 09:49:47,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:47,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:47,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:47,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:47,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:47,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:47,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:47,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:47,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:47,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:47,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:47,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 09:49:47,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:47,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:47,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:47,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:47,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:47,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:47,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:47,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:47,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:47,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:47,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:47,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-12 09:49:47,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:47,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:47,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:47,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:47,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:47,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:47,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:47,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:47,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:47,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:47,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:47,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-12 09:49:47,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:47,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:47,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:47,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:47,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:47,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:47,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:47,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:47,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:47,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:47,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:47,906 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 30 proven. 706 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-10-12 09:49:47,907 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [987876348] [2020-10-12 09:49:47,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:49:47,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2020-10-12 09:49:47,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908976625] [2020-10-12 09:49:47,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-10-12 09:49:47,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:49:47,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-10-12 09:49:47,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=1407, Unknown=0, NotChecked=0, Total=1482 [2020-10-12 09:49:47,908 INFO L87 Difference]: Start difference. First operand 171 states and 173 transitions. Second operand 39 states. [2020-10-12 09:49:51,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:49:51,342 INFO L93 Difference]: Finished difference Result 248 states and 267 transitions. [2020-10-12 09:49:51,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-12 09:49:51,343 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 167 [2020-10-12 09:49:51,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:49:51,345 INFO L225 Difference]: With dead ends: 248 [2020-10-12 09:49:51,345 INFO L226 Difference]: Without dead ends: 246 [2020-10-12 09:49:51,346 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=159, Invalid=3263, Unknown=0, NotChecked=0, Total=3422 [2020-10-12 09:49:51,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-10-12 09:49:51,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 240. [2020-10-12 09:49:51,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-10-12 09:49:51,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 258 transitions. [2020-10-12 09:49:51,394 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 258 transitions. Word has length 167 [2020-10-12 09:49:51,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:49:51,395 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 258 transitions. [2020-10-12 09:49:51,395 INFO L480 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-10-12 09:49:51,395 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 258 transitions. [2020-10-12 09:49:51,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-12 09:49:51,396 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:49:51,396 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:49:51,397 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-10-12 09:49:51,397 INFO L427 AbstractCegarLoop]: === Iteration 48 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:49:51,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:49:51,397 INFO L82 PathProgramCache]: Analyzing trace with hash -1016229603, now seen corresponding path program 45 times [2020-10-12 09:49:51,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:49:51,398 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [928540457] [2020-10-12 09:49:51,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:49:51,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:51,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:51,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:53,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:56,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:56,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-10-12 09:49:56,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:49:56,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 09:49:56,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:56,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-12 09:49:56,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:49:56,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 195 [2020-10-12 09:49:56,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:58,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:49:58,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:58,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:58,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:58,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:49:58,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:58,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:58,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:58,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:49:58,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:58,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:49:58,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:58,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-12 09:49:58,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:58,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:58,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:58,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:58,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:58,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:58,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:58,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:58,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:58,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:58,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:58,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 09:49:58,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:58,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:58,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:58,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:58,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:58,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:58,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:58,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:58,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:58,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:58,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:58,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 09:49:58,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:58,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:58,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:58,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:58,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:58,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:58,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:58,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:58,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:58,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:58,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 09:49:58,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 09:49:58,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:58,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:58,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:58,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:58,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:58,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:58,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:58,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:58,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:58,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:58,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:58,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 09:49:58,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:58,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:58,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:58,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:58,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:58,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:58,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:58,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:58,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:58,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:58,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:58,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-12 09:49:58,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:58,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:58,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:58,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:58,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:58,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:58,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:58,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:58,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:58,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:58,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:58,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-12 09:49:58,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:58,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:58,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:58,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:58,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:58,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:58,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:58,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:58,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:58,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:58,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:58,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-12 09:49:58,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:58,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:58,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:58,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:58,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:58,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:58,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:58,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:58,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:58,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:58,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:58,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 09:49:58,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:58,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:58,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:58,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:58,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:58,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:58,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:58,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:58,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:58,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:58,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:58,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-12 09:49:58,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:58,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:58,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:58,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:58,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:58,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:58,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:58,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:58,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:58,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:58,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:58,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-12 09:49:58,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:58,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:58,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:58,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:58,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:58,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:58,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:58,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:58,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:58,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:58,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:58,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-12 09:49:58,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:58,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:58,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:58,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:58,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:58,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:58,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:58,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:58,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:58,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:58,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:58,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-12 09:49:58,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:58,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:58,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:58,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:58,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:58,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:58,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:58,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:58,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:58,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:58,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:58,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-12 09:49:58,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:58,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:58,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:58,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:58,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:58,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:58,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:58,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:58,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:58,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:58,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:58,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-10-12 09:49:58,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:49:58,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:49:58,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:49:58,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:49:58,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:49:58,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:49:58,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:49:58,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:49:58,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:49:58,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:49:58,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:49:58,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1189 backedges. 30 proven. 737 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2020-10-12 09:49:58,500 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [928540457] [2020-10-12 09:49:58,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:49:58,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2020-10-12 09:49:58,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237130741] [2020-10-12 09:49:58,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-10-12 09:49:58,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:49:58,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-10-12 09:49:58,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1450, Unknown=0, NotChecked=0, Total=1560 [2020-10-12 09:49:58,501 INFO L87 Difference]: Start difference. First operand 240 states and 258 transitions. Second operand 40 states. [2020-10-12 09:50:02,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:50:02,174 INFO L93 Difference]: Finished difference Result 252 states and 270 transitions. [2020-10-12 09:50:02,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-10-12 09:50:02,175 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 169 [2020-10-12 09:50:02,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:50:02,176 INFO L225 Difference]: With dead ends: 252 [2020-10-12 09:50:02,177 INFO L226 Difference]: Without dead ends: 250 [2020-10-12 09:50:02,177 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=217, Invalid=3443, Unknown=0, NotChecked=0, Total=3660 [2020-10-12 09:50:02,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-10-12 09:50:02,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 179. [2020-10-12 09:50:02,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-10-12 09:50:02,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 181 transitions. [2020-10-12 09:50:02,208 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 181 transitions. Word has length 169 [2020-10-12 09:50:02,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:50:02,209 INFO L479 AbstractCegarLoop]: Abstraction has 179 states and 181 transitions. [2020-10-12 09:50:02,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-10-12 09:50:02,209 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 181 transitions. [2020-10-12 09:50:02,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-12 09:50:02,210 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:50:02,210 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:50:02,210 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-10-12 09:50:02,210 INFO L427 AbstractCegarLoop]: === Iteration 49 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:50:02,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:50:02,211 INFO L82 PathProgramCache]: Analyzing trace with hash 421894006, now seen corresponding path program 46 times [2020-10-12 09:50:02,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:50:02,211 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [80103505] [2020-10-12 09:50:02,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:50:02,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:02,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:02,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:04,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:04,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-10-12 09:50:04,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:50:04,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2501 [2020-10-12 09:50:04,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:04,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 09:50:04,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:50:04,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 09:50:04,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:04,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:50:04,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:04,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:04,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:04,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:50:04,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:04,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:04,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:04,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:04,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:04,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:04,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:04,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 09:50:04,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:04,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:04,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:04,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:04,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:04,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:50:04,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:04,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:04,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:50:04,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:04,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:04,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-12 09:50:04,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:04,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:04,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:04,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:04,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:04,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:50:04,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:04,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:04,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:50:04,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:04,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:04,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 09:50:04,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:04,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:04,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:04,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:04,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:04,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:50:04,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:04,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:04,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:50:04,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:04,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:04,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 09:50:04,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:04,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:04,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:04,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:04,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:04,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:50:04,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:04,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:04,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:50:04,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:04,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:04,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 09:50:04,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:04,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:04,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:04,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:04,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:04,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:50:04,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:04,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:04,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:50:04,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:04,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:04,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 09:50:04,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:04,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:04,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:04,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:04,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:04,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:50:04,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:04,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:04,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:50:04,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:04,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:04,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 09:50:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:04,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:04,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:04,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:04,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:04,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:50:04,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:04,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:04,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:50:04,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:04,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:04,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 09:50:04,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:04,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:04,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:04,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:04,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:04,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:50:04,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:04,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:04,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:50:04,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:04,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:04,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-12 09:50:04,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:04,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:04,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:04,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:04,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:04,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:50:04,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:04,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:04,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:50:04,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:04,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:04,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 09:50:04,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:04,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:04,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:04,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:04,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:04,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:50:04,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:04,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:04,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:50:04,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:04,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:04,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-12 09:50:04,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:04,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:04,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:04,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:04,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:04,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:50:04,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:04,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:04,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:50:04,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:04,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:04,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-12 09:50:04,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:04,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:04,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:04,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:04,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:04,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:50:04,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:04,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:04,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:50:04,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:04,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:04,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 09:50:04,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:04,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:04,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:04,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:04,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:04,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:50:04,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:04,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:04,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:50:04,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:04,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:04,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-12 09:50:04,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:04,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:05,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:05,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:05,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:05,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:50:05,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:05,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:05,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:50:05,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:05,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:05,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-12 09:50:05,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:05,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:05,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:05,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:05,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:05,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:50:05,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:05,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:05,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:50:05,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:05,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:05,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-12 09:50:05,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:05,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:05,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:05,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:05,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:05,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:50:05,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:05,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:05,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:50:05,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:05,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:05,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 32 proven. 256 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2020-10-12 09:50:05,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [80103505] [2020-10-12 09:50:05,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:50:05,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-12 09:50:05,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618563159] [2020-10-12 09:50:05,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-12 09:50:05,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:50:05,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-12 09:50:05,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=207, Unknown=0, NotChecked=0, Total=380 [2020-10-12 09:50:05,021 INFO L87 Difference]: Start difference. First operand 179 states and 181 transitions. Second operand 20 states. [2020-10-12 09:50:05,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:50:05,225 INFO L93 Difference]: Finished difference Result 319 states and 322 transitions. [2020-10-12 09:50:05,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 09:50:05,226 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 175 [2020-10-12 09:50:05,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:50:05,227 INFO L225 Difference]: With dead ends: 319 [2020-10-12 09:50:05,227 INFO L226 Difference]: Without dead ends: 182 [2020-10-12 09:50:05,228 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=173, Invalid=207, Unknown=0, NotChecked=0, Total=380 [2020-10-12 09:50:05,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-10-12 09:50:05,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 181. [2020-10-12 09:50:05,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-10-12 09:50:05,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 183 transitions. [2020-10-12 09:50:05,247 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 183 transitions. Word has length 175 [2020-10-12 09:50:05,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:50:05,248 INFO L479 AbstractCegarLoop]: Abstraction has 181 states and 183 transitions. [2020-10-12 09:50:05,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-12 09:50:05,248 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 183 transitions. [2020-10-12 09:50:05,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-10-12 09:50:05,248 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:50:05,249 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:50:05,249 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-10-12 09:50:05,249 INFO L427 AbstractCegarLoop]: === Iteration 50 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:50:05,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:50:05,249 INFO L82 PathProgramCache]: Analyzing trace with hash -1583884972, now seen corresponding path program 47 times [2020-10-12 09:50:05,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:50:05,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [348523868] [2020-10-12 09:50:05,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:50:05,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:05,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:05,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:06,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:10,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:10,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-12 09:50:10,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:50:10,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 09:50:10,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:10,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-12 09:50:10,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:50:10,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 203 [2020-10-12 09:50:10,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:12,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:50:12,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:12,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:12,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:12,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:50:12,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:12,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:50:12,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:12,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:12,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:12,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:12,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:12,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-12 09:50:12,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:12,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:12,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:12,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:12,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:12,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:12,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:12,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:12,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:12,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:12,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:12,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 09:50:12,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:12,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:12,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:12,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:12,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:12,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:12,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:12,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:12,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:12,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:12,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:12,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 09:50:12,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:12,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:12,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:12,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:12,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:12,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:12,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:12,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:12,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:12,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:12,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:12,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 09:50:12,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:12,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:12,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:12,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:12,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:12,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:12,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:12,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:12,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:12,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:12,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:12,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 09:50:12,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:12,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:12,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:12,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:12,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:12,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:12,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:12,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:12,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:12,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:12,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:12,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-12 09:50:12,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:12,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:12,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:12,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:12,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:12,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:12,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:12,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:12,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:12,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:12,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:12,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-12 09:50:12,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:12,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:12,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:12,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:12,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:12,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:12,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:12,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:12,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:12,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:12,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:12,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-12 09:50:12,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:12,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:12,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:12,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:12,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:12,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:12,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:12,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:12,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:12,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:12,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:12,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 09:50:12,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:12,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:12,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:12,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:12,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:12,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:12,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:12,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:12,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:12,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:12,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:12,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-12 09:50:12,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:12,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:12,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:12,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:12,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:12,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:12,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:12,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:12,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:12,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:12,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:12,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-12 09:50:12,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:12,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:12,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:12,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:12,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:12,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:12,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:12,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:12,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:12,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:12,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:12,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-12 09:50:12,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:12,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:12,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:12,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:12,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:12,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:12,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:12,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:12,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:12,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:12,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:12,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-12 09:50:12,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:12,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:12,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:12,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:12,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:12,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:12,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:12,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:12,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:12,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:12,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:12,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-12 09:50:12,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:12,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:12,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:12,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:12,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:12,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:12,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:12,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:12,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:12,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:12,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:12,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-10-12 09:50:12,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:12,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:12,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:12,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:12,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:12,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:12,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:12,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:12,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:12,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:12,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:12,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-10-12 09:50:12,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:12,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:12,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:12,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:12,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:12,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:12,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:12,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:12,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:12,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:12,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:12,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1313 backedges. 32 proven. 801 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2020-10-12 09:50:12,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [348523868] [2020-10-12 09:50:12,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:50:12,303 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2020-10-12 09:50:12,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343156802] [2020-10-12 09:50:12,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 41 states [2020-10-12 09:50:12,304 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:50:12,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2020-10-12 09:50:12,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=1561, Unknown=0, NotChecked=0, Total=1640 [2020-10-12 09:50:12,304 INFO L87 Difference]: Start difference. First operand 181 states and 183 transitions. Second operand 41 states. [2020-10-12 09:50:16,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:50:16,125 INFO L93 Difference]: Finished difference Result 262 states and 282 transitions. [2020-10-12 09:50:16,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-10-12 09:50:16,126 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 177 [2020-10-12 09:50:16,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:50:16,127 INFO L225 Difference]: With dead ends: 262 [2020-10-12 09:50:16,127 INFO L226 Difference]: Without dead ends: 260 [2020-10-12 09:50:16,128 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=167, Invalid=3615, Unknown=0, NotChecked=0, Total=3782 [2020-10-12 09:50:16,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-10-12 09:50:16,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 254. [2020-10-12 09:50:16,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-10-12 09:50:16,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 273 transitions. [2020-10-12 09:50:16,177 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 273 transitions. Word has length 177 [2020-10-12 09:50:16,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:50:16,177 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 273 transitions. [2020-10-12 09:50:16,177 INFO L480 AbstractCegarLoop]: Interpolant automaton has 41 states. [2020-10-12 09:50:16,178 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 273 transitions. [2020-10-12 09:50:16,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-10-12 09:50:16,179 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:50:16,179 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:50:16,179 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2020-10-12 09:50:16,180 INFO L427 AbstractCegarLoop]: === Iteration 51 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:50:16,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:50:16,180 INFO L82 PathProgramCache]: Analyzing trace with hash -697166926, now seen corresponding path program 48 times [2020-10-12 09:50:16,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:50:16,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1189343711] [2020-10-12 09:50:16,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:50:16,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:16,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:16,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:17,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:21,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:21,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-10-12 09:50:21,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:50:21,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-12 09:50:21,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:21,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-12 09:50:21,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:50:21,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 207 [2020-10-12 09:50:21,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:23,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:50:23,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:23,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:23,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:23,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:50:23,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:23,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:50:23,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:23,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:23,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:23,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:23,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:23,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 09:50:23,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:23,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:23,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:23,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:23,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:23,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:23,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:23,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:23,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:23,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:23,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:23,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-12 09:50:23,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:23,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:23,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:23,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:23,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:23,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:23,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:23,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:23,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:23,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:23,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:23,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 09:50:23,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:23,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:23,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:23,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:23,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:23,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:23,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:23,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:23,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:23,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:23,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:23,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 09:50:23,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:23,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:23,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:23,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:23,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:23,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:23,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:23,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:23,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:23,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:23,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:23,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-12 09:50:23,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:23,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:23,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:23,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:23,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:23,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:23,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:23,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:23,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:23,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:23,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:23,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 09:50:23,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:23,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:23,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:23,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:23,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:23,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:23,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:23,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:23,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:23,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:23,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:23,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 09:50:23,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:23,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:23,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:23,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:23,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:23,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:23,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:23,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:23,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:23,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:23,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:23,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 09:50:23,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:23,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:23,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:23,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:23,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:23,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:23,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:23,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:23,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:23,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:23,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:23,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-12 09:50:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:23,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:23,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:23,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:23,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:23,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:23,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:23,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:23,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:23,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:23,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:23,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-12 09:50:23,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:23,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:23,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:23,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:23,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:23,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:50:23,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:23,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:23,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:23,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:23,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:23,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 09:50:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:23,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:23,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:23,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:23,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:23,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:23,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:23,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:23,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:23,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:23,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:23,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-12 09:50:23,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:23,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:23,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:23,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:23,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:23,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:23,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:23,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:23,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:23,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:23,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:23,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-12 09:50:23,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:23,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:23,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:23,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:23,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:23,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:23,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:23,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:23,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:23,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:23,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:23,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-12 09:50:23,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:23,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:23,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:23,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:23,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:23,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:23,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:23,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:23,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:23,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:23,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:23,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-12 09:50:23,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:23,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:23,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:23,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:23,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:23,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:23,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:23,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:23,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:23,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:23,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:23,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-12 09:50:23,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:23,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:23,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:23,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:23,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:23,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:50:23,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:23,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:23,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:23,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:23,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:24,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1348 backedges. 32 proven. 834 refuted. 0 times theorem prover too weak. 482 trivial. 0 not checked. [2020-10-12 09:50:24,053 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1189343711] [2020-10-12 09:50:24,053 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:50:24,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2020-10-12 09:50:24,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180950728] [2020-10-12 09:50:24,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 42 states [2020-10-12 09:50:24,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:50:24,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2020-10-12 09:50:24,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1606, Unknown=0, NotChecked=0, Total=1722 [2020-10-12 09:50:24,054 INFO L87 Difference]: Start difference. First operand 254 states and 273 transitions. Second operand 42 states. [2020-10-12 09:50:28,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:50:28,114 INFO L93 Difference]: Finished difference Result 266 states and 285 transitions. [2020-10-12 09:50:28,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-10-12 09:50:28,117 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 179 [2020-10-12 09:50:28,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:50:28,120 INFO L225 Difference]: With dead ends: 266 [2020-10-12 09:50:28,120 INFO L226 Difference]: Without dead ends: 264 [2020-10-12 09:50:28,121 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=228, Invalid=3804, Unknown=0, NotChecked=0, Total=4032 [2020-10-12 09:50:28,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-10-12 09:50:28,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 189. [2020-10-12 09:50:28,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-10-12 09:50:28,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 191 transitions. [2020-10-12 09:50:28,145 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 191 transitions. Word has length 179 [2020-10-12 09:50:28,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:50:28,146 INFO L479 AbstractCegarLoop]: Abstraction has 189 states and 191 transitions. [2020-10-12 09:50:28,146 INFO L480 AbstractCegarLoop]: Interpolant automaton has 42 states. [2020-10-12 09:50:28,146 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 191 transitions. [2020-10-12 09:50:28,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-10-12 09:50:28,147 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:50:28,147 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:50:28,147 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2020-10-12 09:50:28,147 INFO L427 AbstractCegarLoop]: === Iteration 52 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:50:28,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:50:28,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1108217205, now seen corresponding path program 49 times [2020-10-12 09:50:28,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:50:28,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1728117947] [2020-10-12 09:50:28,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:50:28,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:28,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:28,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:30,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:30,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 227 [2020-10-12 09:50:30,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:50:30,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2536 [2020-10-12 09:50:30,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:30,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-12 09:50:30,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:50:30,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 09:50:30,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:30,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:50:30,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:30,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:30,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:30,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:50:30,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:30,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:30,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:30,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:30,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:30,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:30,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:30,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-12 09:50:30,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:30,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:30,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:30,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:30,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:30,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:50:30,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:30,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:30,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:50:30,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:30,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:30,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 09:50:30,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:30,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:30,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:30,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:30,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:30,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:50:30,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:30,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:30,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:50:30,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:30,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:30,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 09:50:30,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:30,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:30,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:30,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:30,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:30,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:50:30,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:30,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:30,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:50:30,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:30,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:30,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 09:50:30,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:30,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:30,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:30,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:30,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:30,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:50:30,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:30,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:30,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:50:30,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:30,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:30,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 09:50:30,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:30,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:30,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:30,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:30,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:30,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:50:30,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:30,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:30,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:50:30,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:30,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:30,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-12 09:50:30,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:30,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:30,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:30,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:30,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:30,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:50:30,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:30,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:30,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:50:30,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:30,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:30,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-12 09:50:30,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:30,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:30,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:30,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:31,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:31,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:50:31,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:31,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:31,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:50:31,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:31,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:31,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-12 09:50:31,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:31,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:31,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:31,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:31,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:31,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:50:31,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:31,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:31,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:50:31,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:31,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:31,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 09:50:31,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:31,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:31,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:31,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:31,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:31,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:50:31,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:31,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:31,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:50:31,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:31,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:31,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-12 09:50:31,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:31,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:31,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:31,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:31,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:31,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:50:31,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:31,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:31,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:50:31,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:31,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:31,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-12 09:50:31,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:31,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:31,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:31,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:31,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:31,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:50:31,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:31,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:31,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:50:31,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:31,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:31,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-12 09:50:31,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:31,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:31,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:31,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:31,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:31,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:50:31,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:31,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:31,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:50:31,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:31,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:31,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-12 09:50:31,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:31,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:31,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:31,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:31,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:31,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:31,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:31,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:31,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:50:31,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:31,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:31,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-12 09:50:31,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:31,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:31,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:31,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:31,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:31,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:50:31,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:31,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:31,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:50:31,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:31,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:31,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-10-12 09:50:31,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:31,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:31,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:31,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:31,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:31,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:50:31,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:31,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:31,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:50:31,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:31,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:31,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-10-12 09:50:31,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:31,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:31,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:31,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:31,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:31,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:50:31,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:31,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:31,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:50:31,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:31,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:31,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-10-12 09:50:31,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:31,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:31,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:31,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:31,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:31,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:50:31,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:31,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:31,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:50:31,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:31,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:31,038 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 34 proven. 289 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2020-10-12 09:50:31,039 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1728117947] [2020-10-12 09:50:31,039 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:50:31,039 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-12 09:50:31,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690342852] [2020-10-12 09:50:31,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-12 09:50:31,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:50:31,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-12 09:50:31,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=228, Unknown=0, NotChecked=0, Total=420 [2020-10-12 09:50:31,040 INFO L87 Difference]: Start difference. First operand 189 states and 191 transitions. Second operand 21 states. [2020-10-12 09:50:31,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:50:31,199 INFO L93 Difference]: Finished difference Result 337 states and 340 transitions. [2020-10-12 09:50:31,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-12 09:50:31,200 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 185 [2020-10-12 09:50:31,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:50:31,202 INFO L225 Difference]: With dead ends: 337 [2020-10-12 09:50:31,202 INFO L226 Difference]: Without dead ends: 192 [2020-10-12 09:50:31,203 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=192, Invalid=228, Unknown=0, NotChecked=0, Total=420 [2020-10-12 09:50:31,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-10-12 09:50:31,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 191. [2020-10-12 09:50:31,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-10-12 09:50:31,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 193 transitions. [2020-10-12 09:50:31,234 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 193 transitions. Word has length 185 [2020-10-12 09:50:31,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:50:31,234 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 193 transitions. [2020-10-12 09:50:31,235 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-12 09:50:31,235 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 193 transitions. [2020-10-12 09:50:31,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-10-12 09:50:31,236 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:50:31,236 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:50:31,236 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2020-10-12 09:50:31,236 INFO L427 AbstractCegarLoop]: === Iteration 53 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:50:31,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:50:31,237 INFO L82 PathProgramCache]: Analyzing trace with hash 2093937385, now seen corresponding path program 50 times [2020-10-12 09:50:31,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:50:31,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [202365732] [2020-10-12 09:50:31,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:50:31,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:31,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:31,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:33,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:36,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:36,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-10-12 09:50:36,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:50:36,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 09:50:36,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:36,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-12 09:50:36,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:50:36,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 215 [2020-10-12 09:50:36,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:38,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:50:38,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:38,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:38,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:38,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:50:38,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:38,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:38,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:38,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:38,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:38,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:38,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:38,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 09:50:38,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:38,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:38,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:38,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:38,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:38,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:38,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:38,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:38,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:38,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:38,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:38,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-12 09:50:38,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:38,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:38,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:38,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:38,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:38,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:38,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:38,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:38,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:38,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:38,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:38,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 09:50:38,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:38,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:38,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:38,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:38,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:38,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:38,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:38,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:38,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:38,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:38,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:38,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 09:50:38,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:38,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:38,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:38,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:38,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:38,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:38,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:38,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:38,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:38,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:38,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:38,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-12 09:50:38,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:38,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:38,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:38,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:38,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:38,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:38,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:38,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:38,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:38,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:38,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:38,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 09:50:38,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:38,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:38,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:38,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:38,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:38,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:38,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:38,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:38,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:38,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:38,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:38,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 09:50:38,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:38,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:38,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:38,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:38,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:38,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:38,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:38,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:38,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:38,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:38,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:38,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 09:50:38,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:38,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:38,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:38,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:38,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:38,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:38,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:38,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:38,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:38,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:38,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:38,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-12 09:50:38,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:38,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:38,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:38,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:38,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:38,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:38,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:38,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:38,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:38,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:38,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:38,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-12 09:50:38,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:38,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:38,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:38,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:38,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:38,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:38,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:38,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:38,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:38,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:38,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:38,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 09:50:38,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:38,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:38,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:38,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:38,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:38,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:38,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:38,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:38,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:38,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:38,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:38,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-12 09:50:38,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:38,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:38,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:38,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:38,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:38,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:38,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:38,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:38,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:38,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:38,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:38,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-12 09:50:38,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:38,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:38,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:38,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:38,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:38,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:38,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:38,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:38,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:38,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:38,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:38,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-12 09:50:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:38,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:38,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:38,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:38,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:38,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:38,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:38,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:38,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:38,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:38,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:38,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-12 09:50:38,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:38,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:38,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:38,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:38,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:38,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:38,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:38,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:38,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:38,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:38,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:38,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-12 09:50:38,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:38,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:38,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:38,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:38,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:38,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:38,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:38,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:38,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:38,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:38,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:38,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-10-12 09:50:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:38,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:38,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:38,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:38,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:38,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:38,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:38,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:38,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:38,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:38,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:38,506 INFO L134 CoverageAnalysis]: Checked inductivity of 1480 backedges. 34 proven. 902 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2020-10-12 09:50:38,506 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [202365732] [2020-10-12 09:50:38,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:50:38,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2020-10-12 09:50:38,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409786304] [2020-10-12 09:50:38,507 INFO L459 AbstractCegarLoop]: Interpolant automaton has 43 states [2020-10-12 09:50:38,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:50:38,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2020-10-12 09:50:38,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=1723, Unknown=0, NotChecked=0, Total=1806 [2020-10-12 09:50:38,507 INFO L87 Difference]: Start difference. First operand 191 states and 193 transitions. Second operand 43 states. [2020-10-12 09:50:42,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:50:42,870 INFO L93 Difference]: Finished difference Result 276 states and 297 transitions. [2020-10-12 09:50:42,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-10-12 09:50:42,871 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 187 [2020-10-12 09:50:42,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:50:42,872 INFO L225 Difference]: With dead ends: 276 [2020-10-12 09:50:42,872 INFO L226 Difference]: Without dead ends: 274 [2020-10-12 09:50:42,873 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=180, Invalid=4110, Unknown=0, NotChecked=0, Total=4290 [2020-10-12 09:50:42,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-10-12 09:50:42,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 268. [2020-10-12 09:50:42,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-10-12 09:50:42,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 288 transitions. [2020-10-12 09:50:42,920 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 288 transitions. Word has length 187 [2020-10-12 09:50:42,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:50:42,921 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 288 transitions. [2020-10-12 09:50:42,921 INFO L480 AbstractCegarLoop]: Interpolant automaton has 43 states. [2020-10-12 09:50:42,921 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 288 transitions. [2020-10-12 09:50:42,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-10-12 09:50:42,922 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:50:42,923 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:50:42,923 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2020-10-12 09:50:42,923 INFO L427 AbstractCegarLoop]: === Iteration 54 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:50:42,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:50:42,923 INFO L82 PathProgramCache]: Analyzing trace with hash -127052857, now seen corresponding path program 51 times [2020-10-12 09:50:42,924 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:50:42,924 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2091928229] [2020-10-12 09:50:42,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:50:42,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:42,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:42,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:45,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:47,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:47,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 231 [2020-10-12 09:50:47,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 09:50:47,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-12 09:50:47,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:47,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-12 09:50:47,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 09:50:47,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 219 [2020-10-12 09:50:47,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:51,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:50:51,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:51,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:51,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:51,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:50:51,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:51,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:51,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:51,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:50:51,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:51,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:50:51,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:51,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 09:50:51,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:51,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:51,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:51,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:51,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:51,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:50:51,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:51,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:51,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:51,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:51,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:51,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-12 09:50:51,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:51,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:51,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:51,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:51,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:51,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:50:51,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:51,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:51,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:51,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:51,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:51,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 09:50:51,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:51,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:51,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:51,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:51,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:51,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:50:51,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:51,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:51,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:51,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:51,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:51,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 09:50:51,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:51,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:51,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:51,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:51,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:51,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:50:51,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:51,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:51,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:51,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:51,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:51,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 09:50:51,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:51,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:51,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:51,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:51,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:51,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:50:51,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:51,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:51,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:51,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:51,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:51,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 09:50:51,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:51,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:51,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:51,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:51,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:51,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:50:51,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:51,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:51,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:51,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:51,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:51,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 09:50:51,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:51,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:51,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:51,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:51,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:51,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:50:51,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:51,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:51,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:51,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:51,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:51,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-12 09:50:51,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:51,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:51,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:51,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:51,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:51,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 09:50:51,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:51,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:51,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:51,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:51,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:51,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 09:50:51,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:51,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:51,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:51,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:51,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:51,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:51,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:51,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:51,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:51,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:51,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:51,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 09:50:51,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:51,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:51,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:51,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:51,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:51,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:51,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:51,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:51,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:51,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:51,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:51,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-12 09:50:51,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:51,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:51,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:51,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:51,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:51,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:51,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:51,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:51,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:51,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:51,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:51,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-12 09:50:51,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:51,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:51,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:51,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:51,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:51,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:51,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:51,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:51,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:51,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:51,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:51,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-12 09:50:51,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:51,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:51,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:51,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:51,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:51,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:51,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:51,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:51,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:51,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:51,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:51,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-12 09:50:51,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:51,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:51,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:51,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:51,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:51,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:51,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:51,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:51,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:51,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:51,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:51,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-12 09:50:51,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:51,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:51,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:51,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:51,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:51,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:51,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:51,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:51,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:51,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:51,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:51,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-10-12 09:50:51,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:51,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:51,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:51,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:51,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:51,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:51,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:51,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:51,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:51,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:51,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:51,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-12 09:50:51,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:51,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:51,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:50:51,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:50:51,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:50:51,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:50:51,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:50:51,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 09:50:51,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:50:51,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 09:50:51,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:50:51,996 INFO L134 CoverageAnalysis]: Checked inductivity of 1517 backedges. 34 proven. 937 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2020-10-12 09:50:51,997 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2091928229] [2020-10-12 09:50:51,997 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:50:51,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44] total 44 [2020-10-12 09:50:51,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906757892] [2020-10-12 09:50:51,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 44 states [2020-10-12 09:50:51,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:50:51,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2020-10-12 09:50:51,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1770, Unknown=0, NotChecked=0, Total=1892 [2020-10-12 09:50:51,998 INFO L87 Difference]: Start difference. First operand 268 states and 288 transitions. Second operand 44 states. [2020-10-12 09:50:57,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:50:57,337 INFO L93 Difference]: Finished difference Result 280 states and 300 transitions. [2020-10-12 09:50:57,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-10-12 09:50:57,338 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 189 [2020-10-12 09:50:57,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:50:57,340 INFO L225 Difference]: With dead ends: 280 [2020-10-12 09:50:57,340 INFO L226 Difference]: Without dead ends: 278 [2020-10-12 09:50:57,341 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=239, Invalid=4183, Unknown=0, NotChecked=0, Total=4422 [2020-10-12 09:50:57,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-10-12 09:50:57,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 199. [2020-10-12 09:50:57,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2020-10-12 09:50:57,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 201 transitions. [2020-10-12 09:50:57,378 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 201 transitions. Word has length 189 [2020-10-12 09:50:57,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:50:57,378 INFO L479 AbstractCegarLoop]: Abstraction has 199 states and 201 transitions. [2020-10-12 09:50:57,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 44 states. [2020-10-12 09:50:57,379 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 201 transitions. [2020-10-12 09:50:57,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-10-12 09:50:57,380 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:50:57,380 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:50:57,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2020-10-12 09:50:57,380 INFO L427 AbstractCegarLoop]: === Iteration 55 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:50:57,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:50:57,380 INFO L82 PathProgramCache]: Analyzing trace with hash 2123410208, now seen corresponding path program 52 times [2020-10-12 09:50:57,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:50:57,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1298243118] [2020-10-12 09:50:57,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:50:57,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:50:57,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:50:57,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:51:01,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:51:01,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-10-12 09:51:01,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 09:51:01,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3643 [2020-10-12 09:51:01,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:51:01,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 09:51:01,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 09:51:01,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-12 09:51:01,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:51:01,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 09:51:01,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:51:01,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:51:01,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:51:01,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 09:51:01,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:51:01,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:51:01,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:51:01,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:51:01,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 09:51:01,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:51:01,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:51:01,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 09:51:01,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:51:01,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:51:01,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:51:01,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:51:01,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:51:01,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:51:01,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:51:01,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:51:01,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:51:01,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:51:01,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:51:01,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-12 09:51:01,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:51:01,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:51:01,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:51:01,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:51:01,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:51:01,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:51:01,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:51:01,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:51:01,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:51:01,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:51:01,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:51:01,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 09:51:01,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:51:01,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:51:01,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:51:01,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:51:01,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:51:01,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:51:01,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:51:01,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:51:01,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:51:01,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:51:01,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:51:01,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 09:51:01,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:51:01,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:51:01,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:51:01,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:51:01,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:51:01,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:51:01,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:51:01,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:51:01,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:51:01,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:51:01,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:51:01,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-12 09:51:01,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:51:01,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:51:01,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:51:01,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:51:01,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:51:01,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:51:01,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:51:01,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:51:01,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:51:01,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:51:01,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:51:01,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 09:51:01,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:51:01,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:51:01,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:51:01,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:51:01,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:51:01,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:51:01,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:51:01,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:51:01,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:51:01,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:51:01,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:51:01,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 09:51:01,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:51:01,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:51:01,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:51:01,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:51:01,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:51:01,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:51:01,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:51:01,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:51:01,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:51:01,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:51:01,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:51:01,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 09:51:01,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:51:01,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:51:01,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:51:01,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:51:01,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:51:01,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:51:01,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:51:01,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:51:01,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:51:01,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:51:01,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:51:01,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-12 09:51:01,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:51:01,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:51:01,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:51:01,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:51:01,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:51:01,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:51:01,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:51:01,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:51:01,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:51:01,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:51:01,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:51:01,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-12 09:51:01,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:51:01,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:51:01,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:51:01,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:51:01,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:51:01,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:51:01,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:51:01,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:51:01,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:51:01,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:51:01,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:51:01,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 09:51:01,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:51:01,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:51:01,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:51:01,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:51:01,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:51:01,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:51:01,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:51:01,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:51:01,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:51:01,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:51:01,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:51:01,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-12 09:51:01,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:51:01,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:51:01,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:51:01,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:51:01,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:51:01,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:51:01,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:51:01,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:51:01,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:51:01,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:51:01,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:51:01,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-12 09:51:01,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:51:01,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:51:01,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:51:01,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:51:01,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:51:01,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:51:01,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:51:01,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:51:01,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:51:01,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:51:01,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:51:01,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-12 09:51:01,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:51:01,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:51:01,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:51:01,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:51:01,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:51:01,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:51:01,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:51:01,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:51:01,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:51:01,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:51:01,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:51:01,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-12 09:51:01,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:51:01,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:51:01,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:51:01,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:51:01,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:51:01,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:51:01,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:51:01,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:51:01,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:51:01,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:51:01,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:51:01,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-12 09:51:01,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:51:01,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:51:01,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:51:01,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:51:01,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:51:01,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:51:01,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:51:01,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:51:01,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:51:01,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:51:01,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:51:01,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-10-12 09:51:01,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:51:01,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:51:01,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:51:01,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:51:01,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:51:01,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 09:51:01,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:51:01,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:51:01,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:51:01,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:51:01,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:51:01,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-10-12 09:51:01,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:51:01,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:51:01,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 09:51:01,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 09:51:01,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 09:51:01,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 09:51:01,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 09:51:01,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 09:51:01,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 09:51:01,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 09:51:01,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 09:51:01,433 INFO L134 CoverageAnalysis]: Checked inductivity of 1620 backedges. 36 proven. 324 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2020-10-12 09:51:01,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1298243118] [2020-10-12 09:51:01,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 09:51:01,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-12 09:51:01,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781969240] [2020-10-12 09:51:01,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-12 09:51:01,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 09:51:01,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-12 09:51:01,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=250, Unknown=0, NotChecked=0, Total=462 [2020-10-12 09:51:01,435 INFO L87 Difference]: Start difference. First operand 199 states and 201 transitions. Second operand 22 states. [2020-10-12 09:51:01,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 09:51:01,679 INFO L93 Difference]: Finished difference Result 355 states and 358 transitions. [2020-10-12 09:51:01,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-12 09:51:01,680 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 195 [2020-10-12 09:51:01,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 09:51:01,681 INFO L225 Difference]: With dead ends: 355 [2020-10-12 09:51:01,681 INFO L226 Difference]: Without dead ends: 202 [2020-10-12 09:51:01,681 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=212, Invalid=250, Unknown=0, NotChecked=0, Total=462 [2020-10-12 09:51:01,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-12 09:51:01,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 201. [2020-10-12 09:51:01,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-10-12 09:51:01,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 203 transitions. [2020-10-12 09:51:01,715 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 203 transitions. Word has length 195 [2020-10-12 09:51:01,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 09:51:01,715 INFO L479 AbstractCegarLoop]: Abstraction has 201 states and 203 transitions. [2020-10-12 09:51:01,715 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-12 09:51:01,716 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 203 transitions. [2020-10-12 09:51:01,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-10-12 09:51:01,717 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 09:51:01,717 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 09:51:01,717 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2020-10-12 09:51:01,718 INFO L427 AbstractCegarLoop]: === Iteration 56 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 09:51:01,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 09:51:01,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1188606466, now seen corresponding path program 53 times [2020-10-12 09:51:01,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 09:51:01,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1383642573] [2020-10-12 09:51:01,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 09:51:01,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 09:51:01,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 09:51:01,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking...