/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/eca-rers2012/Problem18_label11.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 14:57:25,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 14:57:25,713 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 14:57:25,758 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 14:57:25,759 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 14:57:25,767 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 14:57:25,769 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 14:57:25,772 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 14:57:25,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 14:57:25,777 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 14:57:25,778 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 14:57:25,779 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 14:57:25,779 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 14:57:25,782 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 14:57:25,784 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 14:57:25,786 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 14:57:25,787 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 14:57:25,788 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 14:57:25,789 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 14:57:25,798 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 14:57:25,800 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 14:57:25,801 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 14:57:25,802 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 14:57:25,803 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 14:57:25,820 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 14:57:25,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 14:57:25,821 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 14:57:25,822 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 14:57:25,822 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 14:57:25,823 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 14:57:25,826 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 14:57:25,827 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 14:57:25,828 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 14:57:25,832 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 14:57:25,832 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 14:57:25,833 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 14:57:25,833 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 14:57:25,833 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 14:57:25,834 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 14:57:25,835 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 14:57:25,835 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 14:57:25,836 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 14:57:25,877 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 14:57:25,877 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 14:57:25,879 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 14:57:25,879 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 14:57:25,880 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 14:57:25,880 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 14:57:25,880 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 14:57:25,880 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 14:57:25,881 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 14:57:25,881 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 14:57:25,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 14:57:25,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 14:57:25,882 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 14:57:25,882 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 14:57:25,883 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 14:57:25,883 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 14:57:25,883 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 14:57:25,883 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 14:57:25,883 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 14:57:25,884 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 14:57:25,884 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 14:57:25,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 14:57:25,884 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 14:57:25,884 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 14:57:25,885 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 14:57:25,885 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 14:57:25,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 14:57:25,885 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 14:57:25,885 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 14:57:25,886 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 14:57:26,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 14:57:26,207 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 14:57:26,210 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 14:57:26,212 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 14:57:26,212 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 14:57:26,213 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label11.c [2020-10-12 14:57:26,275 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/269b57895/94faf33cefc54b4ebf14656a21c96fa4/FLAG78e7f4dba [2020-10-12 14:57:26,993 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 14:57:26,994 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label11.c [2020-10-12 14:57:27,021 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/269b57895/94faf33cefc54b4ebf14656a21c96fa4/FLAG78e7f4dba [2020-10-12 14:57:27,079 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/269b57895/94faf33cefc54b4ebf14656a21c96fa4 [2020-10-12 14:57:27,091 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 14:57:27,093 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 14:57:27,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 14:57:27,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 14:57:27,100 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 14:57:27,101 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:57:27" (1/1) ... [2020-10-12 14:57:27,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc9c326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:57:27, skipping insertion in model container [2020-10-12 14:57:27,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:57:27" (1/1) ... [2020-10-12 14:57:27,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 14:57:27,236 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 14:57:28,489 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:57:28,499 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 14:57:29,005 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:57:29,033 INFO L208 MainTranslator]: Completed translation [2020-10-12 14:57:29,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:57:29 WrapperNode [2020-10-12 14:57:29,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 14:57:29,035 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 14:57:29,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 14:57:29,036 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 14:57:29,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:57:29" (1/1) ... [2020-10-12 14:57:29,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:57:29" (1/1) ... [2020-10-12 14:57:29,095 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:57:29" (1/1) ... [2020-10-12 14:57:29,096 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:57:29" (1/1) ... [2020-10-12 14:57:29,170 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:57:29" (1/1) ... [2020-10-12 14:57:29,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:57:29" (1/1) ... [2020-10-12 14:57:29,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:57:29" (1/1) ... [2020-10-12 14:57:29,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 14:57:29,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 14:57:29,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 14:57:29,247 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 14:57:29,248 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:57:29" (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 14:57:29,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 14:57:29,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 14:57:29,333 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 14:57:29,334 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-12 14:57:29,334 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-12 14:57:29,334 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 14:57:29,334 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 14:57:29,335 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-12 14:57:29,335 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-12 14:57:29,335 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 14:57:29,335 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 14:57:29,335 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 14:57:29,336 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 14:57:29,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 14:57:29,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 14:57:35,325 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 14:57:35,326 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 14:57:35,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:57:35 BoogieIcfgContainer [2020-10-12 14:57:35,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 14:57:35,338 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 14:57:35,338 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 14:57:35,342 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 14:57:35,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 02:57:27" (1/3) ... [2020-10-12 14:57:35,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65dfc867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:57:35, skipping insertion in model container [2020-10-12 14:57:35,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:57:29" (2/3) ... [2020-10-12 14:57:35,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65dfc867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:57:35, skipping insertion in model container [2020-10-12 14:57:35,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:57:35" (3/3) ... [2020-10-12 14:57:35,346 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label11.c [2020-10-12 14:57:35,358 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 14:57:35,368 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 14:57:35,385 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 14:57:35,415 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 14:57:35,415 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 14:57:35,415 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 14:57:35,416 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 14:57:35,416 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 14:57:35,416 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 14:57:35,416 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 14:57:35,416 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 14:57:35,452 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2020-10-12 14:57:35,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-12 14:57:35,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:57:35,463 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:57:35,464 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:57:35,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:57:35,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1042189663, now seen corresponding path program 1 times [2020-10-12 14:57:35,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:57:35,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1152237889] [2020-10-12 14:57:35,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:57:35,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:35,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:36,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:36,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-12 14:57:36,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:57:36,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 426 [2020-10-12 14:57:36,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:36,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:57:36,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:57:36,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-12 14:57:36,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 14:57:36,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:57:36,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:36,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:36,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:36,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:57:36,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:57:36,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 14:57:36,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:36,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:57:36,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:57:36,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:57:36,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:57:36,245 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 14:57:36,246 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1152237889] [2020-10-12 14:57:36,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:57:36,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 14:57:36,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803803036] [2020-10-12 14:57:36,256 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 14:57:36,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:57:36,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 14:57:36,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 14:57:36,279 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 4 states. [2020-10-12 14:57:44,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:57:44,815 INFO L93 Difference]: Finished difference Result 2286 states and 4361 transitions. [2020-10-12 14:57:44,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:57:44,818 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 48 [2020-10-12 14:57:44,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:57:44,855 INFO L225 Difference]: With dead ends: 2286 [2020-10-12 14:57:44,856 INFO L226 Difference]: Without dead ends: 1432 [2020-10-12 14:57:44,869 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:57:44,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2020-10-12 14:57:45,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1420. [2020-10-12 14:57:45,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1420 states. [2020-10-12 14:57:45,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 2251 transitions. [2020-10-12 14:57:45,068 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 2251 transitions. Word has length 48 [2020-10-12 14:57:45,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:57:45,068 INFO L479 AbstractCegarLoop]: Abstraction has 1420 states and 2251 transitions. [2020-10-12 14:57:45,068 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 14:57:45,069 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 2251 transitions. [2020-10-12 14:57:45,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-12 14:57:45,075 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:57:45,075 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:57:45,076 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 14:57:45,076 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:57:45,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:57:45,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1749981219, now seen corresponding path program 1 times [2020-10-12 14:57:45,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:57:45,077 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [429766608] [2020-10-12 14:57:45,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:57:45,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:45,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:45,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:46,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:46,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-12 14:57:46,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:57:46,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1192 [2020-10-12 14:57:46,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:46,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:57:46,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:57:46,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 14:57:46,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:57:46,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:57:46,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:46,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:46,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:46,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:57:46,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:57:46,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 14:57:46,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:46,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:57:46,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:57:46,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:57:46,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:57:46,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:57:46,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:46,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:46,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:46,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 14:57:46,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:57:46,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-12 14:57:46,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:46,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:57:46,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:57:46,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 14:57:46,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:57:46,568 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:57:46,569 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [429766608] [2020-10-12 14:57:46,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:57:46,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 14:57:46,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318479306] [2020-10-12 14:57:46,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:57:46,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:57:46,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:57:46,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:57:46,572 INFO L87 Difference]: Start difference. First operand 1420 states and 2251 transitions. Second operand 7 states. [2020-10-12 14:57:55,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:57:55,724 INFO L93 Difference]: Finished difference Result 3589 states and 5906 transitions. [2020-10-12 14:57:55,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:57:55,725 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 117 [2020-10-12 14:57:55,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:57:55,736 INFO L225 Difference]: With dead ends: 3589 [2020-10-12 14:57:55,737 INFO L226 Difference]: Without dead ends: 2175 [2020-10-12 14:57:55,740 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:57:55,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2175 states. [2020-10-12 14:57:55,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2175 to 2138. [2020-10-12 14:57:55,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2138 states. [2020-10-12 14:57:55,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2138 states to 2138 states and 2912 transitions. [2020-10-12 14:57:55,798 INFO L78 Accepts]: Start accepts. Automaton has 2138 states and 2912 transitions. Word has length 117 [2020-10-12 14:57:55,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:57:55,799 INFO L479 AbstractCegarLoop]: Abstraction has 2138 states and 2912 transitions. [2020-10-12 14:57:55,799 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:57:55,799 INFO L276 IsEmpty]: Start isEmpty. Operand 2138 states and 2912 transitions. [2020-10-12 14:57:55,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-12 14:57:55,802 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:57:55,802 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:57:55,802 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 14:57:55,803 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:57:55,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:57:55,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1739833573, now seen corresponding path program 1 times [2020-10-12 14:57:55,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:57:55,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1055307617] [2020-10-12 14:57:55,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:57:55,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:55,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:55,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:57,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:57,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-12 14:57:57,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:57:57,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1199 [2020-10-12 14:57:57,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:57,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:57:57,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:57:57,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-12 14:57:57,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:57:57,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:57:57,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:57,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:57,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:57,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:57:57,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:57:57,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 14:57:57,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:57,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:57:57,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:57:57,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:57:57,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:57:57,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:57:57,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:57,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:57,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:57,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 14:57:57,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:57:57,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-12 14:57:57,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:57,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:57:57,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:57:57,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-12 14:57:57,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:57:57,503 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:57:57,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1055307617] [2020-10-12 14:57:57,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:57:57,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 14:57:57,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176610790] [2020-10-12 14:57:57,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:57:57,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:57:57,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:57:57,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:57:57,506 INFO L87 Difference]: Start difference. First operand 2138 states and 2912 transitions. Second operand 7 states. [2020-10-12 14:58:08,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:58:08,187 INFO L93 Difference]: Finished difference Result 5118 states and 6759 transitions. [2020-10-12 14:58:08,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:58:08,188 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 145 [2020-10-12 14:58:08,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:58:08,206 INFO L225 Difference]: With dead ends: 5118 [2020-10-12 14:58:08,206 INFO L226 Difference]: Without dead ends: 2986 [2020-10-12 14:58:08,211 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:58:08,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2986 states. [2020-10-12 14:58:08,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2986 to 2872. [2020-10-12 14:58:08,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2872 states. [2020-10-12 14:58:08,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2872 states to 2872 states and 3672 transitions. [2020-10-12 14:58:08,313 INFO L78 Accepts]: Start accepts. Automaton has 2872 states and 3672 transitions. Word has length 145 [2020-10-12 14:58:08,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:58:08,313 INFO L479 AbstractCegarLoop]: Abstraction has 2872 states and 3672 transitions. [2020-10-12 14:58:08,313 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:58:08,314 INFO L276 IsEmpty]: Start isEmpty. Operand 2872 states and 3672 transitions. [2020-10-12 14:58:08,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-10-12 14:58:08,319 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:58:08,320 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:58:08,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 14:58:08,320 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:58:08,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:58:08,321 INFO L82 PathProgramCache]: Analyzing trace with hash 1397865874, now seen corresponding path program 1 times [2020-10-12 14:58:08,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:58:08,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [905626898] [2020-10-12 14:58:08,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:58:08,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:08,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:08,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:09,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:09,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:09,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 343 [2020-10-12 14:58:09,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:58:09,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1532 [2020-10-12 14:58:09,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:09,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:58:09,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-12 14:58:09,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 14:58:09,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:10,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:58:10,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:10,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:10,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:10,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:58:10,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:10,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:58:10,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:10,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:58:10,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:10,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:58:10,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:10,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:58:10,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:10,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:10,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:10,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-12 14:58:10,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:10,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-10-12 14:58:10,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:10,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:58:10,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:10,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-12 14:58:10,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 14:58:10,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-12 14:58:10,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:10,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:10,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:10,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:10,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 14:58:10,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:58:10,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 275 [2020-10-12 14:58:10,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:10,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:58:10,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:58:10,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-12 14:58:10,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:10,812 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 176 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-12 14:58:10,812 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [905626898] [2020-10-12 14:58:10,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:58:10,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:58:10,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457392141] [2020-10-12 14:58:10,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:58:10,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:58:10,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:58:10,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:58:10,815 INFO L87 Difference]: Start difference. First operand 2872 states and 3672 transitions. Second operand 7 states. [2020-10-12 14:58:18,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:58:18,206 INFO L93 Difference]: Finished difference Result 4593 states and 6194 transitions. [2020-10-12 14:58:18,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:58:18,207 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 331 [2020-10-12 14:58:18,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:58:18,227 INFO L225 Difference]: With dead ends: 4593 [2020-10-12 14:58:18,227 INFO L226 Difference]: Without dead ends: 2267 [2020-10-12 14:58:18,235 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:58:18,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2267 states. [2020-10-12 14:58:18,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2267 to 2149. [2020-10-12 14:58:18,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2149 states. [2020-10-12 14:58:18,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2149 states to 2149 states and 2575 transitions. [2020-10-12 14:58:18,321 INFO L78 Accepts]: Start accepts. Automaton has 2149 states and 2575 transitions. Word has length 331 [2020-10-12 14:58:18,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:58:18,323 INFO L479 AbstractCegarLoop]: Abstraction has 2149 states and 2575 transitions. [2020-10-12 14:58:18,323 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:58:18,323 INFO L276 IsEmpty]: Start isEmpty. Operand 2149 states and 2575 transitions. [2020-10-12 14:58:18,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2020-10-12 14:58:18,328 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:58:18,329 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:58:18,329 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 14:58:18,329 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:58:18,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:58:18,330 INFO L82 PathProgramCache]: Analyzing trace with hash 1294563151, now seen corresponding path program 1 times [2020-10-12 14:58:18,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:58:18,330 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [252241513] [2020-10-12 14:58:18,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:58:18,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:18,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:18,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:18,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:21,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:21,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 367 [2020-10-12 14:58:21,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:58:21,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3354 [2020-10-12 14:58:21,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:21,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 14:58:21,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:58:21,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 361 [2020-10-12 14:58:21,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:21,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:58:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:21,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:21,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:21,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:58:21,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:21,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 14:58:21,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:21,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:58:21,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:21,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:58:21,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:21,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:58:21,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:22,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:22,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:22,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:22,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 14:58:22,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:58:22,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 823 [2020-10-12 14:58:22,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:22,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:58:22,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:58:22,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-12 14:58:22,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:58:22,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:58:22,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:22,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:23,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:23,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 14:58:23,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:23,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-12 14:58:23,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:23,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:58:23,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:58:23,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 14:58:23,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:23,499 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-12 14:58:23,500 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [252241513] [2020-10-12 14:58:23,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:58:23,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 14:58:23,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075854933] [2020-10-12 14:58:23,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:58:23,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:58:23,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:58:23,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:58:23,503 INFO L87 Difference]: Start difference. First operand 2149 states and 2575 transitions. Second operand 7 states. [2020-10-12 14:58:30,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:58:30,839 INFO L93 Difference]: Finished difference Result 5117 states and 6456 transitions. [2020-10-12 14:58:30,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:58:30,840 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 355 [2020-10-12 14:58:30,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:58:30,856 INFO L225 Difference]: With dead ends: 5117 [2020-10-12 14:58:30,856 INFO L226 Difference]: Without dead ends: 3676 [2020-10-12 14:58:30,861 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:58:30,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3676 states. [2020-10-12 14:58:30,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3676 to 3598. [2020-10-12 14:58:30,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3598 states. [2020-10-12 14:58:30,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3598 states to 3598 states and 4264 transitions. [2020-10-12 14:58:30,944 INFO L78 Accepts]: Start accepts. Automaton has 3598 states and 4264 transitions. Word has length 355 [2020-10-12 14:58:30,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:58:30,945 INFO L479 AbstractCegarLoop]: Abstraction has 3598 states and 4264 transitions. [2020-10-12 14:58:30,945 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:58:30,945 INFO L276 IsEmpty]: Start isEmpty. Operand 3598 states and 4264 transitions. [2020-10-12 14:58:30,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2020-10-12 14:58:30,953 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:58:30,954 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:58:30,954 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 14:58:30,954 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:58:30,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:58:30,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1823985099, now seen corresponding path program 1 times [2020-10-12 14:58:30,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:58:30,955 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [890182244] [2020-10-12 14:58:30,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:58:31,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:31,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:31,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:32,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:33,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:36,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:36,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 440 [2020-10-12 14:58:36,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:58:36,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-12 14:58:36,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:36,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 14:58:36,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:58:36,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 388 [2020-10-12 14:58:36,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:36,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:58:36,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:36,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:36,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:36,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:58:36,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:36,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 14:58:36,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:36,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:58:36,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:36,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:58:36,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:58:36,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:58:36,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:36,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:36,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:37,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:37,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 14:58:37,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:58:37,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 795 [2020-10-12 14:58:37,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:37,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:58:37,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:58:37,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-12 14:58:37,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:58:37,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:58:37,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:37,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:37,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:37,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 14:58:37,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:37,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-12 14:58:37,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:37,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:58:37,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:58:37,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 14:58:37,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:58:37,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-12 14:58:37,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:37,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:37,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:37,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 14:58:37,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:37,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 14:58:37,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:37,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:58:37,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:58:37,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 14:58:37,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:37,695 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 83 proven. 66 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 14:58:37,695 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [890182244] [2020-10-12 14:58:37,696 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:58:37,696 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:58:37,696 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080870410] [2020-10-12 14:58:37,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:58:37,698 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:58:37,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:58:37,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:58:37,699 INFO L87 Difference]: Start difference. First operand 3598 states and 4264 transitions. Second operand 8 states. [2020-10-12 14:58:51,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:58:51,630 INFO L93 Difference]: Finished difference Result 8072 states and 9937 transitions. [2020-10-12 14:58:51,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 14:58:51,636 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 426 [2020-10-12 14:58:51,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:58:51,665 INFO L225 Difference]: With dead ends: 8072 [2020-10-12 14:58:51,665 INFO L226 Difference]: Without dead ends: 5182 [2020-10-12 14:58:51,679 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-10-12 14:58:51,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5182 states. [2020-10-12 14:58:51,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5182 to 5074. [2020-10-12 14:58:51,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5074 states. [2020-10-12 14:58:51,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5074 states to 5074 states and 5927 transitions. [2020-10-12 14:58:51,941 INFO L78 Accepts]: Start accepts. Automaton has 5074 states and 5927 transitions. Word has length 426 [2020-10-12 14:58:51,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:58:51,942 INFO L479 AbstractCegarLoop]: Abstraction has 5074 states and 5927 transitions. [2020-10-12 14:58:51,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:58:51,943 INFO L276 IsEmpty]: Start isEmpty. Operand 5074 states and 5927 transitions. [2020-10-12 14:58:51,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2020-10-12 14:58:51,961 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:58:51,962 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:58:51,962 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 14:58:51,962 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:58:51,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:58:51,963 INFO L82 PathProgramCache]: Analyzing trace with hash -993920521, now seen corresponding path program 1 times [2020-10-12 14:58:51,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:58:51,963 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1186187416] [2020-10-12 14:58:51,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:58:52,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:52,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:52,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:52,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:57,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:57,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 466 [2020-10-12 14:58:57,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:58:57,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-12 14:58:57,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:57,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 14:58:57,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:58:57,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 312 [2020-10-12 14:58:57,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:57,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:58:57,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:57,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:57,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:57,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:58:57,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:57,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:58:57,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:57,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:58:57,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:57,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:58:57,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:57,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:58:57,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:57,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:57,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:57,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 14:58:57,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:57,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 310 [2020-10-12 14:58:57,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:57,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:58:57,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:58:57,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-12 14:58:57,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:57,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:58:57,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:57,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:57,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:57,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 14:58:57,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:57,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-12 14:58:57,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:57,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 14:58:57,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:58:57,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 14:58:57,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:57,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-12 14:58:57,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:57,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:57,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:57,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 14:58:57,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:57,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:58:57,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:57,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:58:57,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-12 14:58:57,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:58:57,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:58,018 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 82 proven. 92 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-12 14:58:58,018 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1186187416] [2020-10-12 14:58:58,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:58:58,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 14:58:58,019 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84805074] [2020-10-12 14:58:58,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:58:58,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:58:58,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:58:58,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:58:58,021 INFO L87 Difference]: Start difference. First operand 5074 states and 5927 transitions. Second operand 8 states. [2020-10-12 14:59:08,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:59:08,780 INFO L93 Difference]: Finished difference Result 14727 states and 17713 transitions. [2020-10-12 14:59:08,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:59:08,782 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 452 [2020-10-12 14:59:08,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:59:08,823 INFO L225 Difference]: With dead ends: 14727 [2020-10-12 14:59:08,823 INFO L226 Difference]: Without dead ends: 10361 [2020-10-12 14:59:08,842 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:59:08,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10361 states. [2020-10-12 14:59:09,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10361 to 9554. [2020-10-12 14:59:09,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9554 states. [2020-10-12 14:59:09,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9554 states to 9554 states and 11161 transitions. [2020-10-12 14:59:09,063 INFO L78 Accepts]: Start accepts. Automaton has 9554 states and 11161 transitions. Word has length 452 [2020-10-12 14:59:09,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:59:09,064 INFO L479 AbstractCegarLoop]: Abstraction has 9554 states and 11161 transitions. [2020-10-12 14:59:09,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:59:09,064 INFO L276 IsEmpty]: Start isEmpty. Operand 9554 states and 11161 transitions. [2020-10-12 14:59:09,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1005 [2020-10-12 14:59:09,101 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:59:09,102 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:59:09,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 14:59:09,102 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:59:09,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:59:09,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1887801450, now seen corresponding path program 1 times [2020-10-12 14:59:09,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:59:09,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [679574614] [2020-10-12 14:59:09,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:59:09,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:09,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:09,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:13,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:13,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1024 [2020-10-12 14:59:13,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:59:13,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3739 [2020-10-12 14:59:13,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:13,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:59:13,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-12 14:59:13,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-12 14:59:13,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:13,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:59:13,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:13,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:13,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:13,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:59:13,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:13,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:59:13,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:13,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:13,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:13,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:13,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:13,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:59:13,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:13,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:13,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:13,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 14:59:13,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:13,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-12 14:59:13,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:13,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:13,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:13,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:13,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:13,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:59:13,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:13,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:13,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:13,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 14:59:13,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:13,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-12 14:59:13,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:13,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:13,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:13,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:13,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:13,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 14:59:13,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:13,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:13,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:13,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 14:59:13,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:13,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:59:13,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:13,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:13,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:13,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:13,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:13,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 14:59:13,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:13,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:13,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:13,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 14:59:13,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:13,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-12 14:59:13,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:13,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:59:13,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:13,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-12 14:59:13,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:13,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:59:13,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:13,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:13,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:13,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 14:59:13,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:13,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:59:13,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:13,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:59:13,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:13,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 14:59:13,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:13,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 14:59:13,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:13,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:14,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:14,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 14:59:14,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:14,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-12 14:59:14,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:14,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:59:14,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:59:14,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-12 14:59:14,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:14,627 INFO L134 CoverageAnalysis]: Checked inductivity of 674 backedges. 369 proven. 2 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2020-10-12 14:59:14,627 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [679574614] [2020-10-12 14:59:14,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:59:14,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:59:14,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572121611] [2020-10-12 14:59:14,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:59:14,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:59:14,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:59:14,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:59:14,630 INFO L87 Difference]: Start difference. First operand 9554 states and 11161 transitions. Second operand 7 states. [2020-10-12 14:59:24,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:59:24,874 INFO L93 Difference]: Finished difference Result 23657 states and 28578 transitions. [2020-10-12 14:59:24,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:59:24,875 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1004 [2020-10-12 14:59:24,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:59:24,936 INFO L225 Difference]: With dead ends: 23657 [2020-10-12 14:59:24,936 INFO L226 Difference]: Without dead ends: 15521 [2020-10-12 14:59:24,958 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:59:24,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15521 states. [2020-10-12 14:59:25,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15521 to 14027. [2020-10-12 14:59:25,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14027 states. [2020-10-12 14:59:25,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14027 states to 14027 states and 16368 transitions. [2020-10-12 14:59:25,303 INFO L78 Accepts]: Start accepts. Automaton has 14027 states and 16368 transitions. Word has length 1004 [2020-10-12 14:59:25,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:59:25,305 INFO L479 AbstractCegarLoop]: Abstraction has 14027 states and 16368 transitions. [2020-10-12 14:59:25,305 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:59:25,305 INFO L276 IsEmpty]: Start isEmpty. Operand 14027 states and 16368 transitions. [2020-10-12 14:59:25,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1162 [2020-10-12 14:59:25,374 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:59:25,376 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:59:25,377 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 14:59:25,377 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:59:25,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:59:25,377 INFO L82 PathProgramCache]: Analyzing trace with hash -738475187, now seen corresponding path program 1 times [2020-10-12 14:59:25,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:59:25,378 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1475405866] [2020-10-12 14:59:25,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:59:25,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:25,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:26,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:26,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:30,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:30,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:30,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1185 [2020-10-12 14:59:30,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:59:30,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-10-12 14:59:30,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:30,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:59:30,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-12 14:59:30,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-12 14:59:30,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:30,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:59:30,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:30,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:30,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:30,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:59:30,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:30,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:59:30,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:30,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:30,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:30,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:30,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:30,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:59:30,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:30,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:30,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:30,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 14:59:30,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:30,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-12 14:59:30,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:30,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:30,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:30,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:30,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:31,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:59:31,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:31,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:31,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:31,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 14:59:31,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:31,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 14:59:31,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:31,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:31,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:31,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:31,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:31,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 14:59:31,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:31,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:31,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:31,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 14:59:31,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:31,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:59:31,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:31,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:31,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:31,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:31,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:31,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 14:59:31,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:31,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:31,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:31,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 14:59:31,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:31,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-10-12 14:59:31,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:31,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:59:31,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:31,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-12 14:59:31,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:31,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:59:31,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:31,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:31,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:31,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 14:59:31,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:31,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 14:59:31,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:31,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:59:31,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:31,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 14:59:31,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:31,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 14:59:31,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:31,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:31,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:31,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:59:31,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:31,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 14:59:31,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:31,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:59:31,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:59:31,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 14:59:31,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:31,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 918 [2020-10-12 14:59:31,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:31,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:31,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:31,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 14:59:31,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:31,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:59:31,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:31,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:31,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 120 [2020-10-12 14:59:31,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:31,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:31,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1040 [2020-10-12 14:59:31,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:31,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:31,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:31,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:59:31,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:31,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:59:31,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:31,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:31,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-12 14:59:31,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:31,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:32,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1303 backedges. 375 proven. 148 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2020-10-12 14:59:32,451 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1475405866] [2020-10-12 14:59:32,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:59:32,452 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:59:32,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42763233] [2020-10-12 14:59:32,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:59:32,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:59:32,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:59:32,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:59:32,454 INFO L87 Difference]: Start difference. First operand 14027 states and 16368 transitions. Second operand 7 states. [2020-10-12 14:59:42,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:59:42,911 INFO L93 Difference]: Finished difference Result 33204 states and 39940 transitions. [2020-10-12 14:59:42,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:59:42,913 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1161 [2020-10-12 14:59:42,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:59:42,979 INFO L225 Difference]: With dead ends: 33204 [2020-10-12 14:59:42,979 INFO L226 Difference]: Without dead ends: 20595 [2020-10-12 14:59:43,002 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:59:43,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20595 states. [2020-10-12 14:59:43,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20595 to 20522. [2020-10-12 14:59:43,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20522 states. [2020-10-12 14:59:43,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20522 states to 20522 states and 24430 transitions. [2020-10-12 14:59:43,393 INFO L78 Accepts]: Start accepts. Automaton has 20522 states and 24430 transitions. Word has length 1161 [2020-10-12 14:59:43,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:59:43,395 INFO L479 AbstractCegarLoop]: Abstraction has 20522 states and 24430 transitions. [2020-10-12 14:59:43,395 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:59:43,395 INFO L276 IsEmpty]: Start isEmpty. Operand 20522 states and 24430 transitions. [2020-10-12 14:59:43,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1229 [2020-10-12 14:59:43,416 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:59:43,417 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:59:43,417 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 14:59:43,418 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:59:43,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:59:43,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1794669120, now seen corresponding path program 1 times [2020-10-12 14:59:43,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:59:43,419 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1754077073] [2020-10-12 14:59:43,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:59:43,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:43,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:44,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:45,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:46,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:48,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:48,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1252 [2020-10-12 14:59:48,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:59:48,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5122 [2020-10-12 14:59:48,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:48,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:59:48,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1121 [2020-10-12 14:59:48,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-12 14:59:48,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:48,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:59:48,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:48,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:48,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:48,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:59:48,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:48,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:59:48,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:48,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:48,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:48,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:48,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:48,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:59:48,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:49,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:49,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:49,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 14:59:49,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:49,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-12 14:59:49,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:49,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:49,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:49,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:49,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:49,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:59:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:49,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:49,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:49,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 14:59:49,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:49,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 14:59:49,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:49,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:49,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:49,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:49,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:49,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 14:59:49,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:49,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:49,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:49,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 14:59:49,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:49,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:59:49,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:49,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:49,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:49,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:49,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:49,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 14:59:49,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:49,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:49,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:49,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 14:59:49,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:49,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 14:59:49,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:49,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:49,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:49,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:49,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:49,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:59:49,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:49,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:49,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:49,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 14:59:49,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:49,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 14:59:49,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:49,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:49,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:49,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:49,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:49,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 14:59:49,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:49,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:49,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:49,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-12 14:59:49,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:49,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:59:49,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:49,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:59:49,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:49,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:59:49,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:49,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-12 14:59:49,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:49,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:49,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:49,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 14:59:49,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:59:49,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 14:59:49,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:49,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:59:49,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:59:49,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-12 14:59:49,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:49,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1107 [2020-10-12 14:59:49,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:49,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:49,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:49,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:59:49,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:59:49,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:59:49,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-12 14:59:49,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:59:49,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:59:49,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:59:49,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-12 14:59:49,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:59:50,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1488 backedges. 523 proven. 7 refuted. 0 times theorem prover too weak. 958 trivial. 0 not checked. [2020-10-12 14:59:50,419 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1754077073] [2020-10-12 14:59:50,420 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:59:50,420 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 14:59:50,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763733020] [2020-10-12 14:59:50,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 14:59:50,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:59:50,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 14:59:50,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:59:50,422 INFO L87 Difference]: Start difference. First operand 20522 states and 24430 transitions. Second operand 6 states. [2020-10-12 14:59:52,999 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-10-12 14:59:57,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:59:57,573 INFO L93 Difference]: Finished difference Result 47627 states and 59135 transitions. [2020-10-12 14:59:57,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 14:59:57,575 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1228 [2020-10-12 14:59:57,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:59:57,665 INFO L225 Difference]: With dead ends: 47627 [2020-10-12 14:59:57,665 INFO L226 Difference]: Without dead ends: 28523 [2020-10-12 14:59:57,710 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:59:57,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28523 states. [2020-10-12 14:59:58,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28523 to 28467. [2020-10-12 14:59:58,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28467 states. [2020-10-12 14:59:58,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28467 states to 28467 states and 33820 transitions. [2020-10-12 14:59:58,183 INFO L78 Accepts]: Start accepts. Automaton has 28467 states and 33820 transitions. Word has length 1228 [2020-10-12 14:59:58,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:59:58,185 INFO L479 AbstractCegarLoop]: Abstraction has 28467 states and 33820 transitions. [2020-10-12 14:59:58,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 14:59:58,185 INFO L276 IsEmpty]: Start isEmpty. Operand 28467 states and 33820 transitions. [2020-10-12 14:59:58,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1302 [2020-10-12 14:59:58,213 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:59:58,215 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:59:58,215 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 14:59:58,215 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:59:58,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:59:58,216 INFO L82 PathProgramCache]: Analyzing trace with hash -926814026, now seen corresponding path program 1 times [2020-10-12 14:59:58,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:59:58,217 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2136728974] [2020-10-12 14:59:58,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:59:58,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:59:58,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:58,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:01,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:03,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:03,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:03,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1327 [2020-10-12 15:00:03,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:00:03,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5078 [2020-10-12 15:00:03,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:03,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:00:03,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1196 [2020-10-12 15:00:03,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-12 15:00:03,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:03,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:00:03,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:03,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:03,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:03,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:00:03,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:03,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:00:03,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:03,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:03,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:03,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:03,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:03,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:00:03,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:03,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:03,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:03,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:00:03,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:03,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-12 15:00:03,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:03,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:03,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:03,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:03,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:03,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:00:03,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:03,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:03,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:03,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:00:03,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:03,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 15:00:03,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:03,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:03,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:03,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:03,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:04,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:00:04,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:04,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:04,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:04,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:00:04,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:04,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:00:04,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:04,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:04,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:04,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:04,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:04,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:00:04,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:04,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:04,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:04,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:00:04,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:04,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 15:00:04,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:04,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:04,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:04,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:04,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:04,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:00:04,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:04,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:04,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:04,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:00:04,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:04,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:00:04,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:04,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:04,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:04,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:04,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:04,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:00:04,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:04,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:04,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:04,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-12 15:00:04,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:04,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 15:00:04,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:04,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:04,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:04,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:04,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:04,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-12 15:00:04,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:04,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:04,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:04,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:00:04,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:04,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 15:00:04,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:04,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:04,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:04,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:04,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:04,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1107 [2020-10-12 15:00:04,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:04,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:04,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:04,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 15:00:04,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:04,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 15:00:04,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:04,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:00:04,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:04,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-12 15:00:04,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:04,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1180 [2020-10-12 15:00:04,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:04,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:04,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:04,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:04,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 15:00:04,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:00:04,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-12 15:00:04,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:04,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:00:04,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:00:04,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-12 15:00:04,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:05,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1894 backedges. 638 proven. 8 refuted. 0 times theorem prover too weak. 1248 trivial. 0 not checked. [2020-10-12 15:00:05,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2136728974] [2020-10-12 15:00:05,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:00:05,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 15:00:05,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595673758] [2020-10-12 15:00:05,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 15:00:05,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:00:05,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 15:00:05,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:00:05,514 INFO L87 Difference]: Start difference. First operand 28467 states and 33820 transitions. Second operand 6 states. [2020-10-12 15:00:12,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:00:12,610 INFO L93 Difference]: Finished difference Result 55609 states and 67006 transitions. [2020-10-12 15:00:12,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 15:00:12,612 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1301 [2020-10-12 15:00:12,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:00:12,678 INFO L225 Difference]: With dead ends: 55609 [2020-10-12 15:00:12,678 INFO L226 Difference]: Without dead ends: 28560 [2020-10-12 15:00:12,712 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:00:12,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28560 states. [2020-10-12 15:00:13,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28560 to 28462. [2020-10-12 15:00:13,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28462 states. [2020-10-12 15:00:13,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28462 states to 28462 states and 31871 transitions. [2020-10-12 15:00:13,141 INFO L78 Accepts]: Start accepts. Automaton has 28462 states and 31871 transitions. Word has length 1301 [2020-10-12 15:00:13,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:00:13,142 INFO L479 AbstractCegarLoop]: Abstraction has 28462 states and 31871 transitions. [2020-10-12 15:00:13,142 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 15:00:13,142 INFO L276 IsEmpty]: Start isEmpty. Operand 28462 states and 31871 transitions. [2020-10-12 15:00:13,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1342 [2020-10-12 15:00:13,171 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:00:13,174 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:00:13,175 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 15:00:13,175 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:00:13,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:00:13,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1901003376, now seen corresponding path program 1 times [2020-10-12 15:00:13,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:00:13,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [238899509] [2020-10-12 15:00:13,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:00:13,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:13,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:13,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:15,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:16,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:17,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:18,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:18,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1367 [2020-10-12 15:00:18,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 15:00:18,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5073 [2020-10-12 15:00:18,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:18,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:00:18,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1319 [2020-10-12 15:00:18,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 15:00:18,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:18,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:00:18,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:18,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:18,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:18,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:00:18,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:18,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:00:18,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:18,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:18,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:18,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:18,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:18,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:00:18,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:18,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:18,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:18,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:00:18,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:18,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-12 15:00:18,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:18,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:18,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:18,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:18,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:18,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:00:18,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:18,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:18,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:18,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:00:18,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:18,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 15:00:18,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:18,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:18,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:18,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:18,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:18,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:00:18,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:18,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:18,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:18,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:00:18,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:18,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:00:18,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:18,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:18,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:18,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:18,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:19,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:00:19,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:19,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:19,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:19,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:00:19,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:19,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-12 15:00:19,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:19,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:19,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:19,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:19,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:19,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:00:19,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:19,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:19,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:19,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:00:19,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:19,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 15:00:19,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:19,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:19,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:19,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:19,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:19,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:00:19,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:19,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:19,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:19,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-12 15:00:19,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:19,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 15:00:19,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:19,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:19,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:19,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:19,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:19,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-12 15:00:19,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:19,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:19,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:19,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:00:19,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:19,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 15:00:19,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:19,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:19,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:19,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:19,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:19,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1107 [2020-10-12 15:00:19,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:19,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:19,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:19,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-12 15:00:19,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:19,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 15:00:19,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:19,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:19,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:19,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:19,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:19,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1213 [2020-10-12 15:00:19,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:19,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:19,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:19,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-12 15:00:19,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:19,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 15:00:19,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:19,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:00:19,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:19,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-12 15:00:19,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:20,467 INFO L134 CoverageAnalysis]: Checked inductivity of 2069 backedges. 255 proven. 6 refuted. 0 times theorem prover too weak. 1808 trivial. 0 not checked. [2020-10-12 15:00:20,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [238899509] [2020-10-12 15:00:20,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:00:20,468 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 15:00:20,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955885436] [2020-10-12 15:00:20,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:00:20,469 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:00:20,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:00:20,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:00:20,470 INFO L87 Difference]: Start difference. First operand 28462 states and 31871 transitions. Second operand 5 states. [2020-10-12 15:00:29,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:00:29,988 INFO L93 Difference]: Finished difference Result 55534 states and 62380 transitions. [2020-10-12 15:00:29,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:00:29,990 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1341 [2020-10-12 15:00:29,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:00:30,056 INFO L225 Difference]: With dead ends: 55534 [2020-10-12 15:00:30,056 INFO L226 Difference]: Without dead ends: 28472 [2020-10-12 15:00:30,091 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:00:30,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28472 states. [2020-10-12 15:00:30,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28472 to 28462. [2020-10-12 15:00:30,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28462 states. [2020-10-12 15:00:30,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28462 states to 28462 states and 31865 transitions. [2020-10-12 15:00:30,511 INFO L78 Accepts]: Start accepts. Automaton has 28462 states and 31865 transitions. Word has length 1341 [2020-10-12 15:00:30,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:00:30,512 INFO L479 AbstractCegarLoop]: Abstraction has 28462 states and 31865 transitions. [2020-10-12 15:00:30,512 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:00:30,512 INFO L276 IsEmpty]: Start isEmpty. Operand 28462 states and 31865 transitions. [2020-10-12 15:00:30,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1349 [2020-10-12 15:00:30,542 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:00:30,543 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:00:30,544 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 15:00:30,544 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:00:30,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:00:30,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1868691985, now seen corresponding path program 1 times [2020-10-12 15:00:30,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:00:30,545 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [229689982] [2020-10-12 15:00:30,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:00:30,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:30,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:31,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:31,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:35,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:35,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1374 [2020-10-12 15:00:35,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:00:35,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5083 [2020-10-12 15:00:35,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:35,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:00:35,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 997 [2020-10-12 15:00:35,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-12 15:00:35,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:35,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:00:35,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:35,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:35,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:35,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:00:35,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:36,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:00:36,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:36,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:36,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:36,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:36,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:36,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:00:36,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:36,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:36,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:36,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:00:36,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:36,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-12 15:00:36,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:36,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:36,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:36,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:36,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:36,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:00:36,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:36,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:36,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:36,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:00:36,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:36,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 15:00:36,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:36,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:36,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:36,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:36,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:36,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:00:36,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:36,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:36,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:36,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:00:36,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:36,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:00:36,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:36,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:36,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:36,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:36,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:36,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:00:36,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:36,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:36,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:36,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:00:36,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:36,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 15:00:36,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:36,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:36,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:36,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:36,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:36,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:00:36,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:36,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:36,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:36,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:00:36,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:36,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:00:36,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:36,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:36,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:36,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:36,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:36,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:00:36,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:36,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:36,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:36,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-12 15:00:36,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:36,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-12 15:00:36,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:36,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:00:36,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:36,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-12 15:00:36,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:36,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-12 15:00:36,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:36,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:36,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:36,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:00:36,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:36,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-12 15:00:36,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:36,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:00:36,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:00:36,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-12 15:00:36,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:37,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1107 [2020-10-12 15:00:37,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:37,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:37,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:37,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-12 15:00:37,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:37,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 15:00:37,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:37,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:37,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-12 15:00:37,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:37,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:37,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1213 [2020-10-12 15:00:37,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:37,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:37,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:37,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-12 15:00:37,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:37,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 15:00:37,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:37,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:37,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-12 15:00:37,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:37,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:37,897 INFO L134 CoverageAnalysis]: Checked inductivity of 2104 backedges. 637 proven. 197 refuted. 0 times theorem prover too weak. 1270 trivial. 0 not checked. [2020-10-12 15:00:37,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [229689982] [2020-10-12 15:00:37,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:00:37,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:00:37,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000824399] [2020-10-12 15:00:37,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:00:37,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:00:37,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:00:37,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:00:37,900 INFO L87 Difference]: Start difference. First operand 28462 states and 31865 transitions. Second operand 7 states. [2020-10-12 15:00:52,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:00:52,398 INFO L93 Difference]: Finished difference Result 63508 states and 72353 transitions. [2020-10-12 15:00:52,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 15:00:52,399 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1348 [2020-10-12 15:00:52,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:00:52,485 INFO L225 Difference]: With dead ends: 63508 [2020-10-12 15:00:52,485 INFO L226 Difference]: Without dead ends: 36464 [2020-10-12 15:00:52,522 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:00:52,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36464 states. [2020-10-12 15:00:52,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36464 to 34972. [2020-10-12 15:00:52,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34972 states. [2020-10-12 15:00:53,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34972 states to 34972 states and 38914 transitions. [2020-10-12 15:00:53,042 INFO L78 Accepts]: Start accepts. Automaton has 34972 states and 38914 transitions. Word has length 1348 [2020-10-12 15:00:53,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:00:53,044 INFO L479 AbstractCegarLoop]: Abstraction has 34972 states and 38914 transitions. [2020-10-12 15:00:53,044 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:00:53,044 INFO L276 IsEmpty]: Start isEmpty. Operand 34972 states and 38914 transitions. [2020-10-12 15:00:53,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1388 [2020-10-12 15:00:53,075 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:00:53,076 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:00:53,077 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 15:00:53,077 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:00:53,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:00:53,078 INFO L82 PathProgramCache]: Analyzing trace with hash 526417123, now seen corresponding path program 1 times [2020-10-12 15:00:53,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:00:53,079 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [102359609] [2020-10-12 15:00:53,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:00:53,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:53,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:53,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:56,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:56,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:57,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:58,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:58,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1415 [2020-10-12 15:00:58,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 15:00:58,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-12 15:00:58,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:58,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:00:58,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1162 [2020-10-12 15:00:58,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-12 15:00:58,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:58,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:00:58,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:58,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:58,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:58,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:00:58,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:58,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:00:58,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:58,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:58,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:58,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:58,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:58,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:00:58,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:58,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:58,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:58,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:00:58,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:58,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-12 15:00:58,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:58,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:58,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:58,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:58,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:58,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:00:58,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:58,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:58,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:58,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:00:58,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:58,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-10-12 15:00:58,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:58,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:58,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:58,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:58,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:58,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:00:58,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:58,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:58,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:58,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:00:58,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:58,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:00:58,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:58,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:58,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:58,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:58,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:59,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:00:59,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:59,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:59,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:59,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:00:59,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:59,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 15:00:59,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:59,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:59,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:59,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:59,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:59,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:00:59,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:59,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:59,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:59,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:00:59,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:59,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:00:59,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:59,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:59,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:59,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:59,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:59,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:00:59,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:59,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:59,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:59,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-12 15:00:59,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:59,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 15:00:59,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:59,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:59,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:59,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:59,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:59,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-12 15:00:59,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:59,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:59,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:59,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 15:00:59,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:59,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 15:00:59,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:59,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:59,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:59,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:59,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:59,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1075 [2020-10-12 15:00:59,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:59,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:59,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:59,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 15:00:59,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:59,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 15:00:59,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:59,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:00:59,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:00:59,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-12 15:00:59,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:59,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1146 [2020-10-12 15:00:59,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:59,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:59,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:59,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-12 15:00:59,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:59,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-12 15:00:59,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:59,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:00:59,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:00:59,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-12 15:00:59,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:00:59,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1252 [2020-10-12 15:00:59,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:00:59,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:00:59,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:00:59,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-12 15:00:59,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:00:59,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 15:00:59,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:00:59,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:00:59,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-12 15:00:59,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:00:59,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:01:00,657 INFO L134 CoverageAnalysis]: Checked inductivity of 2454 backedges. 791 proven. 94 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2020-10-12 15:01:00,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [102359609] [2020-10-12 15:01:00,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:01:00,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:01:00,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463808807] [2020-10-12 15:01:00,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:01:00,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:01:00,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:01:00,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:01:00,659 INFO L87 Difference]: Start difference. First operand 34972 states and 38914 transitions. Second operand 7 states. [2020-10-12 15:01:10,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:01:10,757 INFO L93 Difference]: Finished difference Result 70711 states and 78916 transitions. [2020-10-12 15:01:10,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 15:01:10,758 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1387 [2020-10-12 15:01:10,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:01:10,817 INFO L225 Difference]: With dead ends: 70711 [2020-10-12 15:01:10,817 INFO L226 Difference]: Without dead ends: 37157 [2020-10-12 15:01:10,849 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-12 15:01:10,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37157 states. [2020-10-12 15:01:11,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37157 to 37125. [2020-10-12 15:01:11,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37125 states. [2020-10-12 15:01:11,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37125 states to 37125 states and 41208 transitions. [2020-10-12 15:01:11,386 INFO L78 Accepts]: Start accepts. Automaton has 37125 states and 41208 transitions. Word has length 1387 [2020-10-12 15:01:11,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:01:11,388 INFO L479 AbstractCegarLoop]: Abstraction has 37125 states and 41208 transitions. [2020-10-12 15:01:11,388 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:01:11,389 INFO L276 IsEmpty]: Start isEmpty. Operand 37125 states and 41208 transitions. [2020-10-12 15:01:11,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1389 [2020-10-12 15:01:11,432 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:01:11,434 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:01:11,434 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 15:01:11,435 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:01:11,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:01:11,436 INFO L82 PathProgramCache]: Analyzing trace with hash 715707706, now seen corresponding path program 1 times [2020-10-12 15:01:11,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:01:11,437 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1280380215] [2020-10-12 15:01:11,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY