/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=0.8 --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/recHanoi03-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:43:48,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:43:48,133 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:43:48,181 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:43:48,182 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:43:48,193 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:43:48,194 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:43:48,197 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:43:48,200 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:43:48,202 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:43:48,203 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:43:48,206 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:43:48,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:43:48,210 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:43:48,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:43:48,216 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:43:48,218 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:43:48,219 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:43:48,221 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:43:48,227 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:43:48,230 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:43:48,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:43:48,233 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:43:48,234 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:43:48,239 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:43:48,239 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:43:48,239 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:43:48,242 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:43:48,243 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:43:48,245 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:43:48,245 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:43:48,246 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:43:48,247 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:43:48,248 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:43:48,250 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:43:48,250 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:43:48,251 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:43:48,251 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:43:48,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:43:48,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:43:48,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:43:48,255 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 07:43:48,303 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:43:48,303 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:43:48,305 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:43:48,305 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:43:48,306 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:43:48,306 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:43:48,306 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:43:48,306 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:43:48,306 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:43:48,307 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:43:48,307 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:43:48,307 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:43:48,307 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:43:48,307 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:43:48,307 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:43:48,308 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:43:48,308 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:43:48,308 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:43:48,308 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:43:48,308 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:43:48,309 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:43:48,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:43:48,309 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:43:48,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:43:48,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:43:48,309 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:43:48,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:43:48,310 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:43:48,311 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:43:48,311 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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;log-additional-information=true; [2020-09-25 07:43:48,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:43:48,759 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:43:48,763 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:43:48,765 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:43:48,766 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:43:48,767 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/recHanoi03-2.c [2020-09-25 07:43:48,855 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e9d45beae/79cd75bf4a4343e8a26a4d9923a236fb/FLAG89e156e8f [2020-09-25 07:43:49,415 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:43:49,416 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/recHanoi03-2.c [2020-09-25 07:43:49,424 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e9d45beae/79cd75bf4a4343e8a26a4d9923a236fb/FLAG89e156e8f [2020-09-25 07:43:49,753 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e9d45beae/79cd75bf4a4343e8a26a4d9923a236fb [2020-09-25 07:43:49,769 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:43:49,775 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:43:49,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:43:49,777 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:43:49,781 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:43:49,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:43:49" (1/1) ... [2020-09-25 07:43:49,787 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bb9461a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:43:49, skipping insertion in model container [2020-09-25 07:43:49,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:43:49" (1/1) ... [2020-09-25 07:43:49,797 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:43:49,821 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:43:50,117 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:43:50,128 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:43:50,154 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:43:50,172 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:43:50,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:43:50 WrapperNode [2020-09-25 07:43:50,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:43:50,173 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:43:50,174 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:43:50,174 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:43:50,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:43:50" (1/1) ... [2020-09-25 07:43:50,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:43:50" (1/1) ... [2020-09-25 07:43:50,195 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:43:50" (1/1) ... [2020-09-25 07:43:50,195 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:43:50" (1/1) ... [2020-09-25 07:43:50,199 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:43:50" (1/1) ... [2020-09-25 07:43:50,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:43:50" (1/1) ... [2020-09-25 07:43:50,203 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:43:50" (1/1) ... [2020-09-25 07:43:50,205 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:43:50,206 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:43:50,206 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:43:50,206 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:43:50,207 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:43:50" (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 07:43:50,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:43:50,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:43:50,363 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2020-09-25 07:43:50,363 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:43:50,363 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:43:50,364 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:43:50,364 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2020-09-25 07:43:50,364 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:43:50,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:43:50,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:43:50,586 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:43:50,587 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 07:43:50,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:43:50 BoogieIcfgContainer [2020-09-25 07:43:50,597 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:43:50,609 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:43:50,610 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:43:50,615 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:43:50,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:43:49" (1/3) ... [2020-09-25 07:43:50,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@357231a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:43:50, skipping insertion in model container [2020-09-25 07:43:50,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:43:50" (2/3) ... [2020-09-25 07:43:50,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@357231a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:43:50, skipping insertion in model container [2020-09-25 07:43:50,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:43:50" (3/3) ... [2020-09-25 07:43:50,621 INFO L109 eAbstractionObserver]: Analyzing ICFG recHanoi03-2.c [2020-09-25 07:43:50,650 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:43:50,662 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:43:50,703 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:43:50,735 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:43:50,735 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:43:50,736 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:43:50,736 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:43:50,736 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:43:50,736 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:43:50,736 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:43:50,736 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:43:50,756 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-09-25 07:43:50,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-25 07:43:50,764 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:43:50,765 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:43:50,766 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:43:50,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:43:50,774 INFO L82 PathProgramCache]: Analyzing trace with hash 607163649, now seen corresponding path program 1 times [2020-09-25 07:43:50,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:43:50,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1639674833] [2020-09-25 07:43:50,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:43:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:50,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:51,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:51,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 07:43:51,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:51,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-09-25 07:43:51,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:51,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:51,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:43:51,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 07:43:51,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 07:43:51,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:43:51,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:43:51,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:51,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:51,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:51,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:43:51,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:51,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:43:51,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:51,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:51,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:43:51,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:51,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:43:51,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:51,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 07:43:51,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:51,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:51,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:51,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:43:51,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:51,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 07:43:51,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:51,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:51,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:43:51,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:51,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:43:51,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:51,359 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 07:43:51,360 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1639674833] [2020-09-25 07:43:51,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:43:51,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 07:43:51,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996618873] [2020-09-25 07:43:51,371 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:43:51,371 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:43:51,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:43:51,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:43:51,393 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 7 states. [2020-09-25 07:43:51,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:43:51,561 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2020-09-25 07:43:51,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 07:43:51,564 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-09-25 07:43:51,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:43:51,578 INFO L225 Difference]: With dead ends: 45 [2020-09-25 07:43:51,579 INFO L226 Difference]: Without dead ends: 26 [2020-09-25 07:43:51,583 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:43:51,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-09-25 07:43:51,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-09-25 07:43:51,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-09-25 07:43:51,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-09-25 07:43:51,643 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 19 [2020-09-25 07:43:51,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:43:51,644 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-09-25 07:43:51,644 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:43:51,644 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-09-25 07:43:51,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-25 07:43:51,647 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:43:51,647 INFO L422 BasicCegarLoop]: trace histogram [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 07:43:51,647 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:43:51,648 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:43:51,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:43:51,648 INFO L82 PathProgramCache]: Analyzing trace with hash 1887435767, now seen corresponding path program 1 times [2020-09-25 07:43:51,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:43:51,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1258141922] [2020-09-25 07:43:51,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:43:51,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:51,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:51,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:51,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 07:43:51,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:51,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-09-25 07:43:51,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:51,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:51,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 07:43:51,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 07:43:51,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:43:51,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:51,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:43:51,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:51,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:51,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:51,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:43:51,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:51,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:43:51,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:51,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:51,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:43:51,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:51,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:43:51,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:51,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 07:43:51,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:52,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:52,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:52,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 07:43:52,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:52,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 07:43:52,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:52,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:52,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 07:43:52,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:52,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 07:43:52,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:52,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:43:52,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:52,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:52,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:52,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:43:52,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:52,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 07:43:52,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:52,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:52,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:43:52,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:52,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:43:52,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 15 [2020-09-25 07:43:52,245 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 07:43:52,246 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1258141922] [2020-09-25 07:43:52,246 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:43:52,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 07:43:52,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95144975] [2020-09-25 07:43:52,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:43:52,251 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:43:52,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:43:52,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:43:52,254 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 10 states. [2020-09-25 07:43:52,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:43:52,423 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2020-09-25 07:43:52,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 07:43:52,424 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 27 [2020-09-25 07:43:52,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:43:52,425 INFO L225 Difference]: With dead ends: 37 [2020-09-25 07:43:52,426 INFO L226 Difference]: Without dead ends: 31 [2020-09-25 07:43:52,427 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2020-09-25 07:43:52,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-09-25 07:43:52,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-09-25 07:43:52,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-25 07:43:52,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2020-09-25 07:43:52,434 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 27 [2020-09-25 07:43:52,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:43:52,435 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2020-09-25 07:43:52,435 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:43:52,435 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2020-09-25 07:43:52,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 07:43:52,437 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:43:52,437 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:43:52,437 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:43:52,438 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:43:52,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:43:52,438 INFO L82 PathProgramCache]: Analyzing trace with hash 1929059777, now seen corresponding path program 2 times [2020-09-25 07:43:52,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:43:52,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [161316821] [2020-09-25 07:43:52,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:43:52,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:52,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:52,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:52,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 07:43:52,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:52,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 309 [2020-09-25 07:43:52,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:52,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:52,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 07:43:52,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 07:43:52,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 07:43:52,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:52,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:43:52,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:52,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:52,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:52,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:43:52,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:52,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:43:52,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:52,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:52,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:43:52,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:52,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:43:52,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:52,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 07:43:52,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:52,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:52,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:52,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 07:43:52,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:52,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-25 07:43:52,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:52,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:52,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 07:43:52,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:52,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 07:43:52,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:52,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:43:52,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:52,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:52,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:52,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 07:43:52,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:52,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 07:43:52,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:52,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:52,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 07:43:52,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:52,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 07:43:52,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:53,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:43:53,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:53,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:53,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:53,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:43:53,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:53,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 07:43:53,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:53,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:53,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:43:53,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:53,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:43:53,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:53,100 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 07:43:53,101 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [161316821] [2020-09-25 07:43:53,101 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:43:53,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 07:43:53,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944706120] [2020-09-25 07:43:53,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 07:43:53,103 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:43:53,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 07:43:53,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-09-25 07:43:53,104 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 12 states. [2020-09-25 07:43:53,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:43:53,393 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2020-09-25 07:43:53,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 07:43:53,394 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2020-09-25 07:43:53,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:43:53,396 INFO L225 Difference]: With dead ends: 42 [2020-09-25 07:43:53,396 INFO L226 Difference]: Without dead ends: 36 [2020-09-25 07:43:53,397 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2020-09-25 07:43:53,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-09-25 07:43:53,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-09-25 07:43:53,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-25 07:43:53,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2020-09-25 07:43:53,404 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 35 [2020-09-25 07:43:53,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:43:53,405 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2020-09-25 07:43:53,405 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 07:43:53,405 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2020-09-25 07:43:53,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-25 07:43:53,406 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:43:53,407 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:43:53,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:43:53,407 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:43:53,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:43:53,408 INFO L82 PathProgramCache]: Analyzing trace with hash -1069340361, now seen corresponding path program 3 times [2020-09-25 07:43:53,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:43:53,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1795650285] [2020-09-25 07:43:53,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:43:53,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:53,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:53,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:53,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 07:43:53,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:53,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 371 [2020-09-25 07:43:53,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:53,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:53,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 07:43:53,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 07:43:53,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 07:43:53,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:53,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:43:53,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:53,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:53,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:53,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:43:53,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:53,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:43:53,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:53,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:53,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:43:53,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:53,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:43:53,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:53,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 07:43:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:53,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:53,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:53,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 07:43:53,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:53,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-25 07:43:53,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:53,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:53,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 07:43:53,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:53,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 07:43:53,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:53,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:43:53,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:53,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:54,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:54,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 07:43:54,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:54,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 07:43:54,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:54,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:54,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 07:43:54,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:54,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 07:43:54,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:54,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:43:54,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:54,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:54,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:54,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 07:43:54,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:54,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 07:43:54,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:54,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:54,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 07:43:54,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:54,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 07:43:54,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:54,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:43:54,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:54,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:54,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:54,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:43:54,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:54,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:43:54,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:54,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:54,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:43:54,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:54,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:43:54,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:54,180 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 25 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-25 07:43:54,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1795650285] [2020-09-25 07:43:54,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:43:54,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 07:43:54,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563081501] [2020-09-25 07:43:54,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 07:43:54,183 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:43:54,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 07:43:54,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-09-25 07:43:54,183 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 14 states. [2020-09-25 07:43:54,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:43:54,533 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2020-09-25 07:43:54,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 07:43:54,534 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 43 [2020-09-25 07:43:54,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:43:54,538 INFO L225 Difference]: With dead ends: 47 [2020-09-25 07:43:54,538 INFO L226 Difference]: Without dead ends: 41 [2020-09-25 07:43:54,539 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=553, Unknown=0, NotChecked=0, Total=650 [2020-09-25 07:43:54,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-09-25 07:43:54,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-09-25 07:43:54,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-09-25 07:43:54,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2020-09-25 07:43:54,552 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 43 [2020-09-25 07:43:54,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:43:54,553 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2020-09-25 07:43:54,553 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 07:43:54,553 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2020-09-25 07:43:54,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 07:43:54,557 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:43:54,558 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:43:54,558 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:43:54,558 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:43:54,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:43:54,559 INFO L82 PathProgramCache]: Analyzing trace with hash -287672703, now seen corresponding path program 4 times [2020-09-25 07:43:54,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:43:54,559 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1391270183] [2020-09-25 07:43:54,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:43:54,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:54,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:54,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:55,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:55,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 07:43:55,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:43:55,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 552 [2020-09-25 07:43:55,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:55,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:55,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 07:43:55,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 07:43:55,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 07:43:55,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:43:55,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:43:55,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:55,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:55,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:55,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:43:55,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:55,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:43:55,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:55,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:55,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:43:55,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:55,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:43:55,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:55,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 07:43:55,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:55,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:55,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:55,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:55,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 07:43:55,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:43:55,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-09-25 07:43:55,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:55,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:55,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 07:43:55,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:55,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 07:43:55,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:55,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:43:55,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:55,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:55,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:55,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 07:43:55,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:55,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-09-25 07:43:55,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:55,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:55,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 07:43:55,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:55,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 07:43:55,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:55,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:43:55,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:55,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:55,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:55,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 07:43:55,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:55,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 07:43:55,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:55,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:55,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:43:55,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:55,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 07:43:55,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:43:55,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:43:55,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:55,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:55,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:55,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 07:43:55,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:55,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 07:43:55,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:55,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:55,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:43:55,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:55,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 07:43:55,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:43:55,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:43:55,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:43:55,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:43:55,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:43:55,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:43:55,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:43:55,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 07:43:55,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:43:55,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:43:55,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:43:55,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:43:55,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:43:55,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:43:55,910 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-25 07:43:55,910 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1391270183] [2020-09-25 07:43:55,911 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:43:55,911 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-25 07:43:55,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960893492] [2020-09-25 07:43:55,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 07:43:55,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:43:55,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 07:43:55,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2020-09-25 07:43:55,913 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 14 states. [2020-09-25 07:43:56,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:43:56,074 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2020-09-25 07:43:56,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 07:43:56,074 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 51 [2020-09-25 07:43:56,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:43:56,075 INFO L225 Difference]: With dead ends: 41 [2020-09-25 07:43:56,075 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 07:43:56,076 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2020-09-25 07:43:56,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 07:43:56,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 07:43:56,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 07:43:56,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 07:43:56,078 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2020-09-25 07:43:56,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:43:56,078 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 07:43:56,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 07:43:56,078 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 07:43:56,078 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 07:43:56,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:43:56,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 07:43:56,110 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 07:43:56,110 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 07:43:56,110 INFO L268 CegarLoopResult]: For program point L17(lines 17 19) no Hoare annotation was computed. [2020-09-25 07:43:56,110 INFO L268 CegarLoopResult]: For program point L20-3(line 20) no Hoare annotation was computed. [2020-09-25 07:43:56,110 INFO L268 CegarLoopResult]: For program point hanoiEXIT(lines 16 21) no Hoare annotation was computed. [2020-09-25 07:43:56,110 INFO L271 CegarLoopResult]: At program point hanoiENTRY(lines 16 21) the Hoare annotation is: true [2020-09-25 07:43:56,111 INFO L268 CegarLoopResult]: For program point hanoiFINAL(lines 16 21) no Hoare annotation was computed. [2020-09-25 07:43:56,111 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (= hanoi_~n |hanoi_#in~n|) [2020-09-25 07:43:56,111 INFO L268 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-09-25 07:43:56,111 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-25 07:43:56,111 INFO L268 CegarLoopResult]: For program point L20-2(line 20) no Hoare annotation was computed. [2020-09-25 07:43:56,112 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 07:43:56,112 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 07:43:56,112 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 07:43:56,112 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 07:43:56,112 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-09-25 07:43:56,112 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 33) no Hoare annotation was computed. [2020-09-25 07:43:56,113 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-25 07:43:56,113 INFO L268 CegarLoopResult]: For program point L30(lines 30 34) no Hoare annotation was computed. [2020-09-25 07:43:56,113 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 24 35) the Hoare annotation is: true [2020-09-25 07:43:56,113 INFO L264 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: (<= main_~n~0 31) [2020-09-25 07:43:56,113 INFO L268 CegarLoopResult]: For program point L29-1(line 29) no Hoare annotation was computed. [2020-09-25 07:43:56,113 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-09-25 07:43:56,114 INFO L268 CegarLoopResult]: For program point L29-2(line 29) no Hoare annotation was computed. [2020-09-25 07:43:56,114 INFO L268 CegarLoopResult]: For program point L26(lines 26 28) no Hoare annotation was computed. [2020-09-25 07:43:56,114 INFO L268 CegarLoopResult]: For program point L29-3(line 29) no Hoare annotation was computed. [2020-09-25 07:43:56,114 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-25 07:43:56,114 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 24 35) no Hoare annotation was computed. [2020-09-25 07:43:56,114 INFO L268 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed. [2020-09-25 07:43:56,114 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 24 35) no Hoare annotation was computed. [2020-09-25 07:43:56,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 07:43:56 BoogieIcfgContainer [2020-09-25 07:43:56,122 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 07:43:56,126 INFO L168 Benchmark]: Toolchain (without parser) took 6353.81 ms. Allocated memory was 140.0 MB in the beginning and 280.5 MB in the end (delta: 140.5 MB). Free memory was 103.2 MB in the beginning and 173.0 MB in the end (delta: -69.9 MB). Peak memory consumption was 70.6 MB. Max. memory is 7.1 GB. [2020-09-25 07:43:56,127 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 07:43:56,127 INFO L168 Benchmark]: CACSL2BoogieTranslator took 396.59 ms. Allocated memory is still 140.0 MB. Free memory was 102.5 MB in the beginning and 92.9 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-09-25 07:43:56,128 INFO L168 Benchmark]: Boogie Preprocessor took 31.93 ms. Allocated memory is still 140.0 MB. Free memory was 92.9 MB in the beginning and 91.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-09-25 07:43:56,129 INFO L168 Benchmark]: RCFGBuilder took 391.15 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 91.4 MB in the beginning and 170.1 MB in the end (delta: -78.7 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2020-09-25 07:43:56,130 INFO L168 Benchmark]: TraceAbstraction took 5512.71 ms. Allocated memory was 202.9 MB in the beginning and 280.5 MB in the end (delta: 77.6 MB). Free memory was 169.4 MB in the beginning and 173.0 MB in the end (delta: -3.6 MB). Peak memory consumption was 73.9 MB. Max. memory is 7.1 GB. [2020-09-25 07:43:56,134 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 396.59 ms. Allocated memory is still 140.0 MB. Free memory was 102.5 MB in the beginning and 92.9 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.93 ms. Allocated memory is still 140.0 MB. Free memory was 92.9 MB in the beginning and 91.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 391.15 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 91.4 MB in the beginning and 170.1 MB in the end (delta: -78.7 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5512.71 ms. Allocated memory was 202.9 MB in the beginning and 280.5 MB in the end (delta: 77.6 MB). Free memory was 169.4 MB in the beginning and 173.0 MB in the end (delta: -3.6 MB). Peak memory consumption was 73.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 33]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.3s, OverallIterations: 5, TraceHistogramMax: 5, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 117 SDtfs, 114 SDslu, 575 SDs, 0 SdLazy, 510 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 127 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 11 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 175 NumberOfCodeBlocks, 175 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 170 ConstructedInterpolants, 0 QuantifiedInterpolants, 20916 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 81/120 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...