/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=WIDESTAMONGSMALL --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_5-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:19:09,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:19:09,668 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:19:09,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:19:09,693 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:19:09,694 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:19:09,695 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:19:09,697 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:19:09,699 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:19:09,700 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:19:09,701 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:19:09,702 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:19:09,702 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:19:09,703 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:19:09,704 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:19:09,706 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:19:09,706 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:19:09,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:19:09,713 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:19:09,715 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:19:09,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:19:09,720 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:19:09,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:19:09,724 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:19:09,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:19:09,728 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:19:09,728 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:19:09,729 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:19:09,729 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:19:09,731 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:19:09,732 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:19:09,732 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:19:09,734 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:19:09,736 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:19:09,738 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:19:09,738 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:19:09,739 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:19:09,739 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:19:09,739 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:19:09,740 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:19:09,741 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:19:09,742 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 04:19:09,799 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:19:09,800 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:19:09,801 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:19:09,801 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:19:09,801 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:19:09,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:19:09,802 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:19:09,802 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:19:09,802 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:19:09,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:19:09,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:19:09,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:19:09,803 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:19:09,803 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:19:09,803 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:19:09,804 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:19:09,807 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:19:09,807 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:19:09,807 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:19:09,807 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:19:09,808 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:19:09,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:19:09,808 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:19:09,808 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:19:09,808 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:19:09,809 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:19:09,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:19:09,809 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:19:09,809 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:19:09,809 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=WIDESTAMONGSMALL;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=WIDESTAMONGSMALL;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=WIDESTAMONGSMALL;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=WIDESTAMONGSMALL;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=WIDESTAMONGSMALL;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=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:19:10,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:19:10,318 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:19:10,322 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:19:10,324 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:19:10,324 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:19:10,325 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_5-2.c [2020-09-25 04:19:10,401 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f0868faca/d440eaf973694e9688a2039e9f182248/FLAG51b9d8835 [2020-09-25 04:19:10,928 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:19:10,929 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_5-2.c [2020-09-25 04:19:10,938 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f0868faca/d440eaf973694e9688a2039e9f182248/FLAG51b9d8835 [2020-09-25 04:19:11,286 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f0868faca/d440eaf973694e9688a2039e9f182248 [2020-09-25 04:19:11,298 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:19:11,304 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:19:11,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:19:11,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:19:11,310 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:19:11,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:19:11" (1/1) ... [2020-09-25 04:19:11,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5335cf9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:19:11, skipping insertion in model container [2020-09-25 04:19:11,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:19:11" (1/1) ... [2020-09-25 04:19:11,326 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:19:11,353 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:19:11,555 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:19:11,561 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:19:11,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:19:11,597 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:19:11,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:19:11 WrapperNode [2020-09-25 04:19:11,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:19:11,599 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:19:11,599 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:19:11,599 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:19:11,613 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:19:11" (1/1) ... [2020-09-25 04:19:11,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:19:11" (1/1) ... [2020-09-25 04:19:11,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:19:11" (1/1) ... [2020-09-25 04:19:11,620 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:19:11" (1/1) ... [2020-09-25 04:19:11,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:19:11" (1/1) ... [2020-09-25 04:19:11,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:19:11" (1/1) ... [2020-09-25 04:19:11,628 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:19:11" (1/1) ... [2020-09-25 04:19:11,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:19:11,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:19:11,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:19:11,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:19:11,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:19:11" (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 04:19:11,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:19:11,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:19:11,787 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2020-09-25 04:19:11,787 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:19:11,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:19:11,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:19:11,788 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2020-09-25 04:19:11,788 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:19:11,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:19:11,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:19:12,048 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:19:12,049 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 04:19:12,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:19:12 BoogieIcfgContainer [2020-09-25 04:19:12,054 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:19:12,071 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:19:12,071 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:19:12,076 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:19:12,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:19:11" (1/3) ... [2020-09-25 04:19:12,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27983e88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:19:12, skipping insertion in model container [2020-09-25 04:19:12,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:19:11" (2/3) ... [2020-09-25 04:19:12,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27983e88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:19:12, skipping insertion in model container [2020-09-25 04:19:12,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:19:12" (3/3) ... [2020-09-25 04:19:12,085 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_5-2.c [2020-09-25 04:19:12,100 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:19:12,109 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:19:12,129 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:19:12,157 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:19:12,158 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:19:12,158 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:19:12,158 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:19:12,158 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:19:12,159 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:19:12,159 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:19:12,159 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:19:12,178 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-09-25 04:19:12,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 04:19:12,186 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:19:12,187 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:19:12,187 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:19:12,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:19:12,194 INFO L82 PathProgramCache]: Analyzing trace with hash -1756383024, now seen corresponding path program 1 times [2020-09-25 04:19:12,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:19:12,206 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1786813085] [2020-09-25 04:19:12,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:19:12,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:12,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:12,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:12,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:12,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 04:19:12,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:19:12,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-09-25 04:19:12,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:12,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:12,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:19:12,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 04:19:12,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:19:12,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:19:12,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:19:12,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:12,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:12,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:12,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:19:12,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:19:12,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:19:12,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:12,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:12,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:19:12,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:19:12,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:19:12,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:12,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 04:19:12,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:12,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:12,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:12,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:19:12,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:19:12,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 04:19:12,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:12,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:12,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:19:12,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:19:12,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:19:12,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 04:19:12,667 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 04:19:12,668 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1786813085] [2020-09-25 04:19:12,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:19:12,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:19:12,672 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954097471] [2020-09-25 04:19:12,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:19:12,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:19:12,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:19:12,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:19:12,700 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2020-09-25 04:19:12,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:19:12,805 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2020-09-25 04:19:12,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 04:19:12,807 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 04:19:12,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:19:12,821 INFO L225 Difference]: With dead ends: 44 [2020-09-25 04:19:12,821 INFO L226 Difference]: Without dead ends: 28 [2020-09-25 04:19:12,825 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 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 04:19:12,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-25 04:19:12,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-25 04:19:12,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 04:19:12,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 04:19:12,879 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 16 [2020-09-25 04:19:12,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:19:12,880 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 04:19:12,880 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:19:12,880 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 04:19:12,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 04:19:12,882 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:19:12,883 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 04:19:12,883 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:19:12,883 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:19:12,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:19:12,884 INFO L82 PathProgramCache]: Analyzing trace with hash -389703589, now seen corresponding path program 1 times [2020-09-25 04:19:12,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:19:12,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1775204552] [2020-09-25 04:19:12,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:19:12,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:12,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:12,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:13,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:13,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 04:19:13,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:19:13,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-09-25 04:19:13,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:13,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:13,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:19:13,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 04:19:13,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:19:13,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:13,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:19:13,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:13,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:13,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:13,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:19:13,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:19:13,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:19:13,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:13,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:13,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:19:13,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:19:13,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:19:13,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:13,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 04:19:13,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:13,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:13,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:13,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:19:13,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:19:13,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 04:19:13,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:13,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:13,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:19:13,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 04:19:13,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:19:13,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:13,161 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 04:19:13,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1775204552] [2020-09-25 04:19:13,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:19:13,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:19:13,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428603506] [2020-09-25 04:19:13,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:19:13,165 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:19:13,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:19:13,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:19:13,166 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 5 states. [2020-09-25 04:19:13,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:19:13,261 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2020-09-25 04:19:13,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:19:13,261 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 04:19:13,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:19:13,263 INFO L225 Difference]: With dead ends: 36 [2020-09-25 04:19:13,263 INFO L226 Difference]: Without dead ends: 30 [2020-09-25 04:19:13,264 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 04:19:13,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-25 04:19:13,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-09-25 04:19:13,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 04:19:13,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 04:19:13,277 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2020-09-25 04:19:13,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:19:13,278 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 04:19:13,278 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:19:13,279 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 04:19:13,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 04:19:13,282 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:19:13,282 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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 04:19:13,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:19:13,283 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:19:13,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:19:13,284 INFO L82 PathProgramCache]: Analyzing trace with hash 50309368, now seen corresponding path program 1 times [2020-09-25 04:19:13,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:19:13,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1851433841] [2020-09-25 04:19:13,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:19:13,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:13,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:13,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:13,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:13,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:15,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:15,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 04:19:15,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:19:15,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1919 [2020-09-25 04:19:15,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:15,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:15,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:19:15,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 04:19:15,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 04:19:15,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:19:15,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:19:15,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:15,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:15,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:15,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:19:15,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:19:15,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:19:15,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:15,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:15,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:19:15,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:19:15,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:19:15,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:15,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 04:19:15,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:15,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:15,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:15,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:15,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:15,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 04:19:15,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:19:15,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-09-25 04:19:15,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:15,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:15,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:19:15,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 04:19:15,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 04:19:15,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:15,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:19:15,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:15,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:15,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:15,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:19:15,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:19:15,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:19:15,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:15,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:15,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:19:15,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:19:15,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:19:15,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:15,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 04:19:15,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:15,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:15,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:15,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:19:15,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:19:15,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 04:19:15,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:15,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:15,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:19:15,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:19:15,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:19:15,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:15,557 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 04:19:15,558 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1851433841] [2020-09-25 04:19:15,558 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:19:15,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 04:19:15,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488420467] [2020-09-25 04:19:15,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:19:15,560 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:19:15,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:19:15,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:19:15,561 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 6 states. [2020-09-25 04:19:15,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:19:15,640 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2020-09-25 04:19:15,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 04:19:15,641 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-09-25 04:19:15,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:19:15,643 INFO L225 Difference]: With dead ends: 44 [2020-09-25 04:19:15,643 INFO L226 Difference]: Without dead ends: 38 [2020-09-25 04:19:15,644 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:19:15,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-25 04:19:15,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2020-09-25 04:19:15,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-25 04:19:15,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2020-09-25 04:19:15,654 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 33 [2020-09-25 04:19:15,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:19:15,655 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2020-09-25 04:19:15,655 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:19:15,655 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2020-09-25 04:19:15,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 04:19:15,657 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:19:15,657 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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 04:19:15,658 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:19:15,658 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:19:15,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:19:15,658 INFO L82 PathProgramCache]: Analyzing trace with hash 765810174, now seen corresponding path program 1 times [2020-09-25 04:19:15,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:19:15,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1698164426] [2020-09-25 04:19:15,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:19:15,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:15,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:15,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:15,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:15,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:15,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:17,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:17,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 04:19:17,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:19:17,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1562 [2020-09-25 04:19:17,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:17,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:17,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:19:17,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 04:19:17,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 04:19:17,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:17,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:19:17,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:17,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:17,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:17,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:19:17,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:19:17,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:19:17,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:17,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:17,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:19:17,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:19:17,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:19:17,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:17,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 04:19:17,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:17,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:17,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:17,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:17,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:17,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:17,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 04:19:17,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:19:17,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 414 [2020-09-25 04:19:17,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:17,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:17,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:19:17,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 04:19:17,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 04:19:17,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:17,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:19:17,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:17,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:17,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:17,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:19:17,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:19:17,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 04:19:17,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:17,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:17,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:19:17,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:19:17,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:19:17,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:17,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 04:19:17,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:17,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:17,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:17,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:19:17,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:19:17,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:19:17,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:17,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:17,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:19:17,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:19:17,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:19:17,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:17,830 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 04:19:17,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1698164426] [2020-09-25 04:19:17,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:19:17,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 04:19:17,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801411841] [2020-09-25 04:19:17,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:19:17,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:19:17,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:19:17,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:19:17,844 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 7 states. [2020-09-25 04:19:18,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:19:18,031 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions. [2020-09-25 04:19:18,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 04:19:18,034 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-25 04:19:18,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:19:18,036 INFO L225 Difference]: With dead ends: 52 [2020-09-25 04:19:18,039 INFO L226 Difference]: Without dead ends: 46 [2020-09-25 04:19:18,040 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:19:18,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-25 04:19:18,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 36. [2020-09-25 04:19:18,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-25 04:19:18,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2020-09-25 04:19:18,060 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 35 [2020-09-25 04:19:18,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:19:18,060 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2020-09-25 04:19:18,061 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:19:18,062 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2020-09-25 04:19:18,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-09-25 04:19:18,068 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:19:18,069 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:19:18,071 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:19:18,071 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:19:18,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:19:18,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1767822624, now seen corresponding path program 2 times [2020-09-25 04:19:18,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:19:18,072 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2073398686] [2020-09-25 04:19:18,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:19:18,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:18,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:18,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:18,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:18,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:18,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:18,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:18,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:18,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:22,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:23,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:23,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-09-25 04:19:23,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 04:19:23,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 04:19:23,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:23,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:23,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:19:23,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-25 04:19:23,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:19:23,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:19:23,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:19:23,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:23,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:23,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:23,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:19:23,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:19:23,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:19:23,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:23,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:23,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:19:23,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:19:23,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:19:23,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:23,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 04:19:23,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:23,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:23,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:23,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:23,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:23,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:23,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:23,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:23,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:24,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:28,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:28,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-25 04:19:28,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 04:19:28,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 04:19:28,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:28,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:28,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:19:28,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 04:19:28,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:19:28,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:28,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:19:28,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:28,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:28,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:28,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 04:19:28,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:19:28,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 04:19:28,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:28,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:28,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:19:28,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 04:19:28,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:19:28,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:28,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:19:28,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:28,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:28,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:28,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:19:28,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:19:28,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:19:28,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:28,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:28,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:19:28,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 04:19:28,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:19:28,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 04:19:28,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 04:19:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:28,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:28,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:28,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:19:28,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:19:28,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:19:28,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:28,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:28,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:19:28,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:19:28,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:19:28,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:28,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 04:19:28,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:28,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:28,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:28,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:28,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:28,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:29,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:29,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 04:19:29,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:19:29,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 781 [2020-09-25 04:19:29,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:29,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:29,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:19:29,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-09-25 04:19:29,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:19:29,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:29,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:19:29,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:29,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:29,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:29,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:29,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 04:19:29,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:19:29,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 04:19:29,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:29,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:29,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:19:29,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:19:29,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:19:29,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:29,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:19:29,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:29,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:29,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:29,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:19:29,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:19:29,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:19:29,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:29,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:29,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:19:29,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:19:29,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:19:29,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:29,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 04:19:29,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:29,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:29,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:29,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:19:29,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:19:29,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:19:29,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:29,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:29,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:19:29,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:19:29,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:19:29,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:29,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 04:19:29,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:29,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:29,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:29,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:19:29,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:19:29,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:19:29,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:29,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:29,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:19:29,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:19:29,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:19:29,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:29,180 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 30 proven. 52 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-25 04:19:29,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2073398686] [2020-09-25 04:19:29,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:19:29,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 04:19:29,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487128391] [2020-09-25 04:19:29,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:19:29,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:19:29,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:19:29,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:19:29,183 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 6 states. [2020-09-25 04:19:29,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:19:29,266 INFO L93 Difference]: Finished difference Result 68 states and 92 transitions. [2020-09-25 04:19:29,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 04:19:29,267 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2020-09-25 04:19:29,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:19:29,268 INFO L225 Difference]: With dead ends: 68 [2020-09-25 04:19:29,268 INFO L226 Difference]: Without dead ends: 38 [2020-09-25 04:19:29,270 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:19:29,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-25 04:19:29,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-25 04:19:29,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-25 04:19:29,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 47 transitions. [2020-09-25 04:19:29,278 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 47 transitions. Word has length 84 [2020-09-25 04:19:29,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:19:29,278 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 47 transitions. [2020-09-25 04:19:29,278 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:19:29,279 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2020-09-25 04:19:29,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-25 04:19:29,280 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:19:29,280 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:19:29,281 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:19:29,281 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:19:29,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:19:29,281 INFO L82 PathProgramCache]: Analyzing trace with hash 501566307, now seen corresponding path program 1 times [2020-09-25 04:19:29,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:19:29,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1121638623] [2020-09-25 04:19:29,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:19:29,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:29,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:29,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:29,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:29,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:29,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:29,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:29,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:29,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:32,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:32,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:34,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:34,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-25 04:19:34,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 04:19:34,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 04:19:34,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:34,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:34,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 04:19:34,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 04:19:34,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 04:19:34,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:19:34,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:19:34,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:34,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:34,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:34,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:19:34,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:19:34,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:19:34,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:34,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:34,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:19:34,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:19:34,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:19:34,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:19:34,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 04:19:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:34,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:34,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:34,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:34,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:34,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:34,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:34,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:35,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:35,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:36,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:36,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:39,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:39,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-25 04:19:39,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 04:19:39,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 04:19:39,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:39,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:39,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 04:19:39,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 04:19:39,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 04:19:39,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:19:39,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:19:39,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:39,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:39,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:39,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:39,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:39,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 04:19:39,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:19:39,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 371 [2020-09-25 04:19:39,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:39,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:39,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:19:39,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:19:39,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 04:19:39,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:39,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:19:39,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:39,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:39,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:39,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:19:39,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:19:39,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 04:19:39,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:39,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:39,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:19:39,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:19:39,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:19:39,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:39,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 04:19:39,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:39,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:39,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:39,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:19:39,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:19:39,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:19:39,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:39,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:39,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:19:39,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:19:39,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:19:39,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:39,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 04:19:39,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:39,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:39,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:39,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:39,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:39,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:40,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:40,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:40,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 04:19:40,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 04:19:40,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1024 [2020-09-25 04:19:40,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:40,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:40,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:19:40,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 04:19:40,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 04:19:40,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:19:40,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:19:40,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:40,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:40,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:40,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 04:19:40,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:19:40,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 04:19:40,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:40,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:40,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:19:40,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:19:40,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 04:19:40,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:40,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:19:40,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:40,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:40,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:40,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:19:40,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:19:40,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:19:40,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:40,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:40,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:19:40,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:19:40,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:19:40,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:40,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 04:19:40,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:40,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:40,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:40,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:19:40,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:19:40,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:19:40,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:40,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:40,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:19:40,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:19:40,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:19:40,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:40,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 04:19:40,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:40,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:40,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:40,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:19:40,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:19:40,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:19:40,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:40,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:40,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:19:40,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:19:40,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:19:40,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:41,006 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 55 proven. 74 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-09-25 04:19:41,006 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1121638623] [2020-09-25 04:19:41,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:19:41,007 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 04:19:41,007 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367226254] [2020-09-25 04:19:41,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:19:41,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:19:41,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:19:41,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:19:41,009 INFO L87 Difference]: Start difference. First operand 38 states and 47 transitions. Second operand 8 states. [2020-09-25 04:19:41,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:19:41,177 INFO L93 Difference]: Finished difference Result 90 states and 126 transitions. [2020-09-25 04:19:41,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 04:19:41,177 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 87 [2020-09-25 04:19:41,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:19:41,179 INFO L225 Difference]: With dead ends: 90 [2020-09-25 04:19:41,179 INFO L226 Difference]: Without dead ends: 58 [2020-09-25 04:19:41,181 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-09-25 04:19:41,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-25 04:19:41,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-09-25 04:19:41,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-25 04:19:41,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 70 transitions. [2020-09-25 04:19:41,191 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 70 transitions. Word has length 87 [2020-09-25 04:19:41,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:19:41,192 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 70 transitions. [2020-09-25 04:19:41,192 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:19:41,192 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 70 transitions. [2020-09-25 04:19:41,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-09-25 04:19:41,194 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:19:41,194 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:19:41,194 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 04:19:41,194 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:19:41,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:19:41,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1883941443, now seen corresponding path program 2 times [2020-09-25 04:19:41,195 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:19:41,195 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [124789016] [2020-09-25 04:19:41,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:19:41,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:41,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:41,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:41,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:41,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:41,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:41,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:41,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:41,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:42,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:43,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:43,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:46,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:46,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-25 04:19:46,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 04:19:46,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 04:19:46,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:46,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:46,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 04:19:46,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 04:19:46,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 04:19:46,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:19:46,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:19:46,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:46,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:46,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:46,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:19:46,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:19:46,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:19:46,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:46,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:46,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:19:46,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:19:46,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:19:46,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:19:46,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 04:19:46,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:46,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:46,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:46,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:46,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:46,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:48,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:48,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:48,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:49,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:49,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:49,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:50,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:50,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:50,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:50,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:50,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:51,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:51,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-25 04:19:51,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-09-25 04:19:51,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 04:19:51,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:51,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:51,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 04:19:51,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 04:19:51,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-25 04:19:51,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:51,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:19:51,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:51,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:51,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:51,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:52,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:52,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 04:19:52,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:19:52,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1321 [2020-09-25 04:19:52,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:52,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:52,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:19:52,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:19:52,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 04:19:52,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:19:52,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:19:52,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:52,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:52,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:52,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 04:19:52,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:19:52,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 04:19:52,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:52,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:52,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:19:52,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:19:52,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 04:19:52,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:19:52,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:19:52,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:52,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:52,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:52,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:19:52,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:19:52,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:19:52,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:52,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:52,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:19:52,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:19:52,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:19:52,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:52,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 04:19:52,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:52,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:52,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:52,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:19:52,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:19:52,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:19:52,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:52,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:52,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:19:52,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:19:52,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:19:52,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:52,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 04:19:52,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:52,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:52,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:52,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:19:52,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:19:52,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 04:19:52,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:52,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:52,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:19:52,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:19:52,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:19:52,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:52,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 04:19:52,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:52,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:52,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:52,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:52,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:52,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:53,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:53,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:53,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:53,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:54,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:54,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:54,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:54,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:55,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:57,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:57,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-25 04:19:57,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-09-25 04:19:57,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 04:19:57,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:57,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:57,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:19:57,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 04:19:57,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 04:19:57,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:19:57,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:19:57,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:57,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:57,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:57,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 04:19:57,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:19:57,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 04:19:57,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:57,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:57,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:19:57,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:19:57,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 04:19:57,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:57,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:19:57,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:57,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:57,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:57,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 04:19:57,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:19:57,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:19:57,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:57,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:57,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:19:57,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:19:57,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:19:57,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:57,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:19:57,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:57,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:57,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:57,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:19:57,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:19:57,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:19:57,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:57,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:57,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:19:57,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:19:57,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:19:57,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:57,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 04:19:57,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:57,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:57,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:57,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:19:57,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:19:57,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:19:57,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:57,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:57,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:19:57,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:19:57,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:19:57,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:57,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 04:19:57,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:57,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:57,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:57,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:19:57,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:19:57,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:19:57,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:57,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:57,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:19:57,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:19:57,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:19:57,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:57,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 04:19:57,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:57,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:57,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:57,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:19:57,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:19:57,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:19:57,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 04:19:57,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:19:57,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:19:57,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:19:57,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:19:57,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:19:57,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:19:57,916 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 157 proven. 106 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-09-25 04:19:57,917 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [124789016] [2020-09-25 04:19:57,917 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:19:57,917 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 04:19:57,918 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791933875] [2020-09-25 04:19:57,919 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 04:19:57,919 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:19:57,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 04:19:57,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:19:57,920 INFO L87 Difference]: Start difference. First operand 58 states and 70 transitions. Second operand 10 states. [2020-09-25 04:19:58,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:19:58,217 INFO L93 Difference]: Finished difference Result 122 states and 175 transitions. [2020-09-25 04:19:58,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 04:19:58,218 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 123 [2020-09-25 04:19:58,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:19:58,220 INFO L225 Difference]: With dead ends: 122 [2020-09-25 04:19:58,220 INFO L226 Difference]: Without dead ends: 67 [2020-09-25 04:19:58,225 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2020-09-25 04:19:58,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-09-25 04:19:58,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 61. [2020-09-25 04:19:58,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-09-25 04:19:58,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 73 transitions. [2020-09-25 04:19:58,237 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 73 transitions. Word has length 123 [2020-09-25 04:19:58,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:19:58,238 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 73 transitions. [2020-09-25 04:19:58,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 04:19:58,238 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 73 transitions. [2020-09-25 04:19:58,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-25 04:19:58,240 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:19:58,240 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:19:58,240 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 04:19:58,240 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:19:58,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:19:58,241 INFO L82 PathProgramCache]: Analyzing trace with hash 866676589, now seen corresponding path program 3 times [2020-09-25 04:19:58,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:19:58,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [949559502] [2020-09-25 04:19:58,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:19:58,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:19:58,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:58,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:58,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:19:58,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:00,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:03,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:03,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-25 04:20:03,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:20:03,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 04:20:03,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:03,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:03,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 04:20:03,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 04:20:03,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 04:20:03,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:03,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:20:03,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:03,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:03,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:03,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:20:03,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:03,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:20:03,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:03,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:03,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:20:03,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:03,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:20:03,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:03,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 04:20:03,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:03,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:03,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:03,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:03,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:05,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking...