/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 SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_15-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 11:07:00,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 11:07:00,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 11:07:00,363 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 11:07:00,364 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 11:07:00,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 11:07:00,374 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 11:07:00,378 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 11:07:00,381 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 11:07:00,384 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 11:07:00,385 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 11:07:00,387 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 11:07:00,387 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 11:07:00,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 11:07:00,392 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 11:07:00,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 11:07:00,396 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 11:07:00,397 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 11:07:00,399 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 11:07:00,408 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 11:07:00,410 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 11:07:00,411 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 11:07:00,413 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 11:07:00,414 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 11:07:00,426 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 11:07:00,427 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 11:07:00,427 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 11:07:00,434 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 11:07:00,435 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 11:07:00,436 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 11:07:00,436 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 11:07:00,439 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 11:07:00,441 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 11:07:00,442 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 11:07:00,443 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 11:07:00,443 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 11:07:00,444 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 11:07:00,444 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 11:07:00,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 11:07:00,445 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 11:07:00,446 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 11:07:00,447 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 [2020-09-25 11:07:00,474 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 11:07:00,475 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 11:07:00,479 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 11:07:00,479 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 11:07:00,480 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 11:07:00,480 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 11:07:00,480 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 11:07:00,480 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 11:07:00,480 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 11:07:00,480 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 11:07:00,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 11:07:00,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 11:07:00,481 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 11:07:00,481 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 11:07:00,481 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 11:07:00,483 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 11:07:00,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 11:07:00,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 11:07:00,483 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 11:07:00,484 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 11:07:00,484 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 11:07:00,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:07:00,484 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 11:07:00,485 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 11:07:00,485 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 11:07:00,485 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 11:07:00,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 11:07:00,485 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 11:07:00,486 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 11:07:00,486 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 -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 11:07:00,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 11:07:01,010 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 11:07:01,015 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 11:07:01,016 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 11:07:01,017 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 11:07:01,018 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_15-2.c [2020-09-25 11:07:01,094 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1c1d03f7d/c8b202b18b3541f49155486410aa5f07/FLAG374968abf [2020-09-25 11:07:01,747 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 11:07:01,748 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_15-2.c [2020-09-25 11:07:01,756 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1c1d03f7d/c8b202b18b3541f49155486410aa5f07/FLAG374968abf [2020-09-25 11:07:02,076 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1c1d03f7d/c8b202b18b3541f49155486410aa5f07 [2020-09-25 11:07:02,092 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 11:07:02,098 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 11:07:02,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 11:07:02,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 11:07:02,104 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 11:07:02,106 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:07:02" (1/1) ... [2020-09-25 11:07:02,111 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22d0bdac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:07:02, skipping insertion in model container [2020-09-25 11:07:02,111 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:07:02" (1/1) ... [2020-09-25 11:07:02,121 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 11:07:02,147 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 11:07:02,402 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:07:02,411 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 11:07:02,432 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:07:02,446 INFO L208 MainTranslator]: Completed translation [2020-09-25 11:07:02,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:07:02 WrapperNode [2020-09-25 11:07:02,447 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 11:07:02,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 11:07:02,448 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 11:07:02,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 11:07:02,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:07:02" (1/1) ... [2020-09-25 11:07:02,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:07:02" (1/1) ... [2020-09-25 11:07:02,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:07:02" (1/1) ... [2020-09-25 11:07:02,564 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:07:02" (1/1) ... [2020-09-25 11:07:02,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:07:02" (1/1) ... [2020-09-25 11:07:02,572 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:07:02" (1/1) ... [2020-09-25 11:07:02,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:07:02" (1/1) ... [2020-09-25 11:07:02,575 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 11:07:02,576 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 11:07:02,576 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 11:07:02,576 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 11:07:02,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:07:02" (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 [2020-09-25 11:07:02,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 11:07:02,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 11:07:02,655 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-09-25 11:07:02,656 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-09-25 11:07:02,656 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 11:07:02,656 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 11:07:02,656 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 11:07:02,657 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-09-25 11:07:02,657 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-09-25 11:07:02,657 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 11:07:02,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 11:07:02,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 11:07:02,904 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 11:07:02,904 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 11:07:02,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:07:02 BoogieIcfgContainer [2020-09-25 11:07:02,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 11:07:02,911 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 11:07:02,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 11:07:02,916 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 11:07:02,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:07:02" (1/3) ... [2020-09-25 11:07:02,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e33f6f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:07:02, skipping insertion in model container [2020-09-25 11:07:02,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:07:02" (2/3) ... [2020-09-25 11:07:02,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e33f6f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:07:02, skipping insertion in model container [2020-09-25 11:07:02,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:07:02" (3/3) ... [2020-09-25 11:07:02,921 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_15-2.c [2020-09-25 11:07:02,934 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 11:07:02,946 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 11:07:03,000 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 11:07:03,065 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 11:07:03,065 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 11:07:03,065 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 11:07:03,065 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 11:07:03,066 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 11:07:03,066 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 11:07:03,066 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 11:07:03,066 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 11:07:03,094 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-09-25 11:07:03,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 11:07:03,103 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:07:03,104 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:07:03,104 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:07:03,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:07:03,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1089710179, now seen corresponding path program 1 times [2020-09-25 11:07:03,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:07:03,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1571827651] [2020-09-25 11:07:03,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:07:03,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:03,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:03,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:03,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:07:03,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:07:03,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 11:07:03,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:03,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:03,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:07:03,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 11:07:03,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:07:03,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 11:07:03,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:07:03,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:03,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:03,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:03,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:07:03,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:07:03,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:07:03,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:03,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:03,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:07:03,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:07:03,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:07:03,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 11:07:03,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 11:07:03,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:03,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:03,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:03,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:07:03,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:07:03,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 11:07:03,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:03,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:03,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:07:03,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 11:07:03,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:07:03,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:03,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:07:03,490 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1571827651] [2020-09-25 11:07:03,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:07:03,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 11:07:03,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311738657] [2020-09-25 11:07:03,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 11:07:03,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:07:03,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 11:07:03,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 11:07:03,518 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-09-25 11:07:03,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:07:03,660 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2020-09-25 11:07:03,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 11:07:03,663 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 11:07:03,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:07:03,684 INFO L225 Difference]: With dead ends: 58 [2020-09-25 11:07:03,685 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 11:07:03,690 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 11:07:03,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 11:07:03,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-25 11:07:03,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 11:07:03,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 11:07:03,753 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 16 [2020-09-25 11:07:03,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:07:03,754 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 11:07:03,754 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 11:07:03,754 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 11:07:03,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 11:07:03,757 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:07:03,757 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:07:03,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 11:07:03,758 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:07:03,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:07:03,759 INFO L82 PathProgramCache]: Analyzing trace with hash -653728005, now seen corresponding path program 1 times [2020-09-25 11:07:03,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:07:03,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1666297124] [2020-09-25 11:07:03,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:07:03,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:03,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:03,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:03,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 11:07:03,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:07:03,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-25 11:07:03,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:03,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:03,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:07:03,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 11:07:03,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:07:03,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:03,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:07:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:03,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:03,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:03,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:07:03,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:07:03,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:07:03,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:03,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:03,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:07:03,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:07:03,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:07:03,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:03,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 11:07:03,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:03,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:03,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:03,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:07:03,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:07:03,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 11:07:03,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:03,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:03,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:07:03,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 11:07:03,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:07:03,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:03,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:07:03,981 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1666297124] [2020-09-25 11:07:03,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:07:03,982 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 11:07:03,982 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364621828] [2020-09-25 11:07:03,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 11:07:03,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:07:03,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 11:07:03,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 11:07:03,985 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 5 states. [2020-09-25 11:07:04,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:07:04,088 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-09-25 11:07:04,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 11:07:04,089 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 11:07:04,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:07:04,091 INFO L225 Difference]: With dead ends: 50 [2020-09-25 11:07:04,091 INFO L226 Difference]: Without dead ends: 44 [2020-09-25 11:07:04,093 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 11:07:04,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-25 11:07:04,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-09-25 11:07:04,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 11:07:04,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 11:07:04,106 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 17 [2020-09-25 11:07:04,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:07:04,108 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 11:07:04,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 11:07:04,108 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 11:07:04,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 11:07:04,112 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:07:04,113 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 11:07:04,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 11:07:04,113 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:07:04,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:07:04,114 INFO L82 PathProgramCache]: Analyzing trace with hash -1617834856, now seen corresponding path program 1 times [2020-09-25 11:07:04,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:07:04,115 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1039085730] [2020-09-25 11:07:04,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:07:04,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:04,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:04,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:04,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:04,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:04,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 11:07:04,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 11:07:04,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 625 [2020-09-25 11:07:04,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:04,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:04,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:07:04,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 11:07:04,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 11:07:04,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 11:07:04,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:07:04,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:04,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:04,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:04,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:07:04,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:07:04,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:07:04,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:04,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:04,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:07:04,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:07:04,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:07:04,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:04,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 11:07:04,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:04,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:04,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:04,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:05,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:05,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 11:07:05,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 11:07:05,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 278 [2020-09-25 11:07:05,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:05,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:05,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:07:05,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 11:07:05,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 11:07:05,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:05,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:07:05,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:05,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:05,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:05,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:07:05,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:07:05,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 11:07:05,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:05,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:05,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:07:05,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:07:05,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:07:05,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:05,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 11:07:05,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:05,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:05,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:05,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:07:05,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:07:05,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 11:07:05,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:05,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:05,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:07:05,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:07:05,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:07:05,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:05,170 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 11:07:05,170 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1039085730] [2020-09-25 11:07:05,171 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:07:05,171 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 11:07:05,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556693950] [2020-09-25 11:07:05,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 11:07:05,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:07:05,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 11:07:05,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 11:07:05,173 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 7 states. [2020-09-25 11:07:05,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:07:05,306 INFO L93 Difference]: Finished difference Result 58 states and 69 transitions. [2020-09-25 11:07:05,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 11:07:05,307 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-25 11:07:05,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:07:05,309 INFO L225 Difference]: With dead ends: 58 [2020-09-25 11:07:05,310 INFO L226 Difference]: Without dead ends: 52 [2020-09-25 11:07:05,311 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 11:07:05,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-25 11:07:05,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2020-09-25 11:07:05,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 11:07:05,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2020-09-25 11:07:05,323 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 33 [2020-09-25 11:07:05,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:07:05,323 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2020-09-25 11:07:05,323 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 11:07:05,324 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2020-09-25 11:07:05,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 11:07:05,326 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:07:05,326 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:07:05,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 11:07:05,326 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:07:05,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:07:05,327 INFO L82 PathProgramCache]: Analyzing trace with hash 186293384, now seen corresponding path program 1 times [2020-09-25 11:07:05,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:07:05,327 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [931161575] [2020-09-25 11:07:05,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:07:05,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:05,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:05,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:05,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:05,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:05,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:05,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 11:07:05,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 11:07:05,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 618 [2020-09-25 11:07:05,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:05,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:05,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:07:05,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 11:07:05,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 11:07:05,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:05,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:07:05,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:05,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:05,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:05,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:07:05,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:07:05,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:07:05,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:05,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:05,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:07:05,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:07:05,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:07:05,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:05,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 11:07:05,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:06,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:06,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:06,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:06,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:06,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:06,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 11:07:06,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 11:07:06,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 494 [2020-09-25 11:07:06,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:06,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:06,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:07:06,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 11:07:06,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 11:07:06,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:06,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:07:06,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:06,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:06,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:06,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:07:06,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:07:06,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 11:07:06,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:06,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:06,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:07:06,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:07:06,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:07:06,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:06,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 11:07:06,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:06,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:06,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:06,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:07:06,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:07:06,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 11:07:06,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:06,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:06,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:07:06,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:07:06,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:07:06,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:06,609 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 11:07:06,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [931161575] [2020-09-25 11:07:06,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:07:06,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 11:07:06,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594821144] [2020-09-25 11:07:06,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 11:07:06,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:07:06,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 11:07:06,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 11:07:06,615 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand 7 states. [2020-09-25 11:07:06,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:07:06,765 INFO L93 Difference]: Finished difference Result 110 states and 146 transitions. [2020-09-25 11:07:06,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 11:07:06,769 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-25 11:07:06,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:07:06,775 INFO L225 Difference]: With dead ends: 110 [2020-09-25 11:07:06,775 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 11:07:06,778 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 11:07:06,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 11:07:06,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2020-09-25 11:07:06,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 11:07:06,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2020-09-25 11:07:06,801 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 35 [2020-09-25 11:07:06,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:07:06,801 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2020-09-25 11:07:06,803 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 11:07:06,803 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2020-09-25 11:07:06,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 11:07:06,807 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:07:06,810 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-09-25 11:07:06,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 11:07:06,811 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:07:06,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:07:06,811 INFO L82 PathProgramCache]: Analyzing trace with hash 758565477, now seen corresponding path program 1 times [2020-09-25 11:07:06,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:07:06,812 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [907276157] [2020-09-25 11:07:06,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:07:06,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:06,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:06,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:06,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:06,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:07,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:07,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:07,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:11,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:11,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 11:07:11,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 11:07:11,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 11:07:11,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:11,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:11,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:07:11,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 11:07:11,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 11:07:11,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:11,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:07:11,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:11,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:11,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:11,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:07:11,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:07:11,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:07:11,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:11,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:11,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:07:11,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:07:11,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:07:11,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:11,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 11:07:11,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:11,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:11,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:11,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:12,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:12,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:12,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:12,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:15,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:15,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 11:07:15,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 11:07:15,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3593 [2020-09-25 11:07:15,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:15,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:15,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:07:15,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 11:07:15,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 11:07:15,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:15,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:07:15,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:15,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:15,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:15,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:15,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 11:07:15,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:07:15,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 11:07:15,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:15,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:15,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:07:15,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:07:15,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 11:07:15,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:15,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:07:15,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:15,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:15,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:15,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:07:15,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:07:15,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:07:15,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:15,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:15,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:07:15,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:07:15,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:07:15,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:15,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 11:07:15,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:15,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:15,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:15,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:07:15,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:07:15,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:07:15,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:15,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:15,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:07:15,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:07:15,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:07:15,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:15,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 11:07:15,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:15,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:15,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:15,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:07:15,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:07:15,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 11:07:15,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:15,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:15,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:07:15,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:07:15,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:07:15,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:15,692 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-25 11:07:15,692 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [907276157] [2020-09-25 11:07:15,693 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:07:15,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 11:07:15,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464252453] [2020-09-25 11:07:15,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 11:07:15,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:07:15,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 11:07:15,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 11:07:15,695 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand 7 states. [2020-09-25 11:07:15,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:07:15,833 INFO L93 Difference]: Finished difference Result 66 states and 81 transitions. [2020-09-25 11:07:15,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 11:07:15,834 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2020-09-25 11:07:15,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:07:15,836 INFO L225 Difference]: With dead ends: 66 [2020-09-25 11:07:15,836 INFO L226 Difference]: Without dead ends: 60 [2020-09-25 11:07:15,837 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 11:07:15,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-09-25 11:07:15,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2020-09-25 11:07:15,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 11:07:15,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2020-09-25 11:07:15,848 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 51 [2020-09-25 11:07:15,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:07:15,849 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2020-09-25 11:07:15,849 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 11:07:15,849 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2020-09-25 11:07:15,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-25 11:07:15,852 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:07:15,852 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:07:15,852 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 11:07:15,853 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:07:15,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:07:15,853 INFO L82 PathProgramCache]: Analyzing trace with hash 1879014210, now seen corresponding path program 1 times [2020-09-25 11:07:15,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:07:15,854 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [399831997] [2020-09-25 11:07:15,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:07:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:15,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:15,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:15,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:15,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:16,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:16,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:16,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:16,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:16,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:17,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:20,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:20,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 11:07:20,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 11:07:20,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 11:07:20,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:20,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:20,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 11:07:20,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 11:07:20,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 11:07:20,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:20,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:07:20,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:20,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:20,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:20,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:07:20,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:07:20,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:07:20,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:20,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:20,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:07:20,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:07:20,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:07:20,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:07:20,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 11:07:20,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:20,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:20,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:20,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:20,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:21,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:21,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:21,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:24,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:24,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:25,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:25,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 11:07:25,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 11:07:25,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 11:07:25,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:25,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:25,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 11:07:25,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 11:07:25,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 11:07:25,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:25,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:07:25,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:25,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:25,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:25,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:26,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:26,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 11:07:26,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 11:07:26,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 11:07:26,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:26,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:26,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:07:26,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:07:26,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 11:07:26,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:07:26,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:07:26,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:26,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:26,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:26,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:07:26,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:07:26,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:07:26,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:26,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:26,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:07:26,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:07:26,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:07:26,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:26,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 11:07:26,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:26,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:26,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:26,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:07:26,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:07:26,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 11:07:26,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:26,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:26,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:07:26,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:07:26,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:07:26,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:26,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 11:07:26,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:26,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:26,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:26,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:26,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 11:07:26,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:07:26,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 11:07:26,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:26,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:26,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:07:26,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 11:07:26,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 11:07:26,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:07:26,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:07:26,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:26,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:26,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:26,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:07:26,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:07:26,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 11:07:26,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:26,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:26,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:07:26,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:07:26,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:07:26,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:26,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 11:07:26,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:26,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:26,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:26,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:07:26,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:07:26,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:07:26,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:26,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:26,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:07:26,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:07:26,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:07:26,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:26,288 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 11 proven. 21 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-25 11:07:26,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [399831997] [2020-09-25 11:07:26,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:07:26,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 11:07:26,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288226713] [2020-09-25 11:07:26,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 11:07:26,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:07:26,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 11:07:26,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 11:07:26,291 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand 11 states. [2020-09-25 11:07:26,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:07:26,530 INFO L93 Difference]: Finished difference Result 107 states and 144 transitions. [2020-09-25 11:07:26,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 11:07:26,531 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 67 [2020-09-25 11:07:26,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:07:26,532 INFO L225 Difference]: With dead ends: 107 [2020-09-25 11:07:26,532 INFO L226 Difference]: Without dead ends: 59 [2020-09-25 11:07:26,534 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2020-09-25 11:07:26,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-09-25 11:07:26,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-09-25 11:07:26,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-25 11:07:26,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 72 transitions. [2020-09-25 11:07:26,543 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 72 transitions. Word has length 67 [2020-09-25 11:07:26,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:07:26,544 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 72 transitions. [2020-09-25 11:07:26,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 11:07:26,544 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 72 transitions. [2020-09-25 11:07:26,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 11:07:26,546 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:07:26,546 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 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] [2020-09-25 11:07:26,546 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 11:07:26,546 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:07:26,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:07:26,547 INFO L82 PathProgramCache]: Analyzing trace with hash -387134248, now seen corresponding path program 1 times [2020-09-25 11:07:26,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:07:26,547 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1269407268] [2020-09-25 11:07:26,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:07:26,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:26,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:26,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:26,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:26,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:26,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:26,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:27,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:27,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:28,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:29,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:30,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:30,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:31,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:31,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:31,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-25 11:07:31,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 11:07:31,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 11:07:31,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:31,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:31,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 11:07:31,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 11:07:31,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 11:07:31,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:31,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:07:31,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:31,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:31,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:31,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:07:31,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:07:31,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:07:31,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:31,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:31,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:07:31,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:07:31,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:07:31,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:31,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 11:07:31,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:31,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:31,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:31,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:31,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:31,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:31,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:32,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:32,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:32,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:35,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:35,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:35,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:35,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:36,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:36,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 11:07:36,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 11:07:36,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 11:07:36,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:36,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:36,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 11:07:36,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 11:07:36,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 11:07:36,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:07:36,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:07:36,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:36,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:36,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:36,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:36,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 11:07:36,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:07:36,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-09-25 11:07:36,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:36,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:36,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 11:07:36,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:07:36,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 11:07:36,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:36,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:07:36,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:36,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:36,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:36,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:07:36,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:07:36,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 11:07:36,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:36,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:36,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:07:36,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:07:36,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:07:36,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:36,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 11:07:36,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:36,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:36,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:36,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:07:36,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:07:36,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:07:36,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:36,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:36,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:07:36,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:07:36,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:07:36,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:36,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 11:07:36,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:36,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:36,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:36,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 11:07:36,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:07:36,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 11:07:36,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:36,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:36,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:07:36,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:07:36,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 11:07:36,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:36,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:07:36,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:36,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:36,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:36,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:07:36,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:07:36,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:07:36,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:36,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:36,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:07:36,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:07:36,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:07:36,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:36,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 11:07:36,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:36,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:36,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:36,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:07:36,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:07:36,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:07:36,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:36,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:36,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:07:36,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:07:36,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:07:36,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:36,949 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-09-25 11:07:36,950 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1269407268] [2020-09-25 11:07:36,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:07:36,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 11:07:36,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827826159] [2020-09-25 11:07:36,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 11:07:36,951 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:07:36,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 11:07:36,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 11:07:36,952 INFO L87 Difference]: Start difference. First operand 59 states and 72 transitions. Second operand 9 states. [2020-09-25 11:07:37,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:07:37,128 INFO L93 Difference]: Finished difference Result 93 states and 126 transitions. [2020-09-25 11:07:37,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 11:07:37,129 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-09-25 11:07:37,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:07:37,131 INFO L225 Difference]: With dead ends: 93 [2020-09-25 11:07:37,131 INFO L226 Difference]: Without dead ends: 87 [2020-09-25 11:07:37,134 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-09-25 11:07:37,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-09-25 11:07:37,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 75. [2020-09-25 11:07:37,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-09-25 11:07:37,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 102 transitions. [2020-09-25 11:07:37,163 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 102 transitions. Word has length 69 [2020-09-25 11:07:37,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:07:37,163 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 102 transitions. [2020-09-25 11:07:37,163 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 11:07:37,163 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 102 transitions. [2020-09-25 11:07:37,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-09-25 11:07:37,167 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:07:37,167 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:07:37,168 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 11:07:37,168 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:07:37,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:07:37,168 INFO L82 PathProgramCache]: Analyzing trace with hash 2120760888, now seen corresponding path program 1 times [2020-09-25 11:07:37,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:07:37,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2056062860] [2020-09-25 11:07:37,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:07:37,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:37,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:37,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:37,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:37,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:37,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:37,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:37,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:37,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:37,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:37,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:39,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:39,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:39,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:42,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:42,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-25 11:07:42,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 11:07:42,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 11:07:42,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:42,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:42,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 11:07:42,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 11:07:42,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 11:07:42,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:42,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:07:42,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:42,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:42,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:42,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:07:42,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:07:42,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:07:42,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:42,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:42,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:07:42,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:07:42,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:07:42,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:07:42,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 11:07:42,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:42,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:42,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:42,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:42,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:42,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:42,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:42,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:42,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:42,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:43,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:47,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:47,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-25 11:07:47,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 11:07:47,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 11:07:47,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:47,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:47,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 11:07:47,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 11:07:47,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 11:07:47,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:07:47,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:07:47,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:47,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:47,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:47,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:47,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:47,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:47,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:47,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:48,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:48,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:48,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 11:07:48,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 11:07:48,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1437 [2020-09-25 11:07:48,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:48,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:48,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 11:07:48,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:07:48,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 11:07:48,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:48,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:07:48,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:48,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:48,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:48,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:48,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:48,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 11:07:48,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 11:07:48,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 11:07:48,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:48,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:48,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:07:48,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:07:48,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 11:07:48,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:07:48,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:07:48,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:48,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:48,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:48,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:07:48,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:07:48,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:07:48,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:48,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:48,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:07:48,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:07:48,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:07:48,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:07:48,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 11:07:48,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:48,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:48,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:48,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:07:48,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:07:48,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:07:48,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:48,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:48,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:07:48,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:07:48,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:07:48,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:07:48,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 11:07:48,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:48,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:48,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:48,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:07:48,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:07:48,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:07:48,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:48,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:48,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:07:48,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:07:48,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:07:48,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:07:48,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 11:07:48,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:48,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:48,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:48,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:49,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:49,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:49,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:50,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:50,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 11:07:50,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 11:07:50,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1305 [2020-09-25 11:07:50,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:50,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:50,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:07:50,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 11:07:50,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-25 11:07:50,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:50,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:07:50,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:50,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:50,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:50,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:50,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 11:07:50,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:07:50,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 11:07:50,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:50,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:50,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:07:50,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:07:50,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 11:07:50,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:07:50,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:07:50,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:50,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:50,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:50,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:07:50,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:07:50,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:07:50,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:50,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:50,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:07:50,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:07:50,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:07:50,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:50,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 11:07:50,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:50,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:50,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:50,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:07:50,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:07:50,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:07:50,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:50,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:50,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:07:50,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:07:50,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:07:50,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:50,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 11:07:50,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:50,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:50,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:07:50,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:07:50,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:07:50,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:07:50,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:07:50,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:07:50,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:07:50,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:07:50,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:07:50,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:07:50,403 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 37 proven. 29 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-09-25 11:07:50,404 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2056062860] [2020-09-25 11:07:50,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:07:50,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 11:07:50,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848613915] [2020-09-25 11:07:50,405 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 11:07:50,405 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:07:50,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 11:07:50,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-09-25 11:07:50,406 INFO L87 Difference]: Start difference. First operand 75 states and 102 transitions. Second operand 12 states. [2020-09-25 11:07:50,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:07:50,623 INFO L93 Difference]: Finished difference Result 166 states and 252 transitions. [2020-09-25 11:07:50,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 11:07:50,623 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 101 [2020-09-25 11:07:50,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:07:50,626 INFO L225 Difference]: With dead ends: 166 [2020-09-25 11:07:50,626 INFO L226 Difference]: Without dead ends: 97 [2020-09-25 11:07:50,627 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2020-09-25 11:07:50,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-09-25 11:07:50,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 91. [2020-09-25 11:07:50,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-09-25 11:07:50,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 123 transitions. [2020-09-25 11:07:50,640 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 123 transitions. Word has length 101 [2020-09-25 11:07:50,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:07:50,641 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 123 transitions. [2020-09-25 11:07:50,641 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 11:07:50,641 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 123 transitions. [2020-09-25 11:07:50,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-25 11:07:50,643 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:07:50,643 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:07:50,643 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 11:07:50,643 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:07:50,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:07:50,644 INFO L82 PathProgramCache]: Analyzing trace with hash 452106143, now seen corresponding path program 1 times [2020-09-25 11:07:50,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:07:50,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [106752920] [2020-09-25 11:07:50,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:07:50,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:07:50,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:50,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:50,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:50,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:51,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:51,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:07:51,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking...