/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem06_label16.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 07:04:42,566 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 07:04:42,568 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 07:04:42,592 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 07:04:42,592 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 07:04:42,593 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 07:04:42,594 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 07:04:42,596 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 07:04:42,598 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 07:04:42,599 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 07:04:42,600 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 07:04:42,604 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 07:04:42,604 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 07:04:42,607 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 07:04:42,608 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 07:04:42,613 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 07:04:42,614 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 07:04:42,614 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 07:04:42,618 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 07:04:42,620 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 07:04:42,623 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 07:04:42,626 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 07:04:42,627 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 07:04:42,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 07:04:42,632 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 07:04:42,632 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 07:04:42,632 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 07:04:42,635 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 07:04:42,635 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 07:04:42,639 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 07:04:42,639 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 07:04:42,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 07:04:42,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 07:04:42,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 07:04:42,644 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 07:04:42,644 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 07:04:42,645 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 07:04:42,645 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 07:04:42,646 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 07:04:42,655 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 07:04:42,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 07:04:42,657 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 07:04:42,702 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 07:04:42,703 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 07:04:42,704 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 07:04:42,704 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 07:04:42,704 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 07:04:42,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 07:04:42,705 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 07:04:42,705 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 07:04:42,706 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 07:04:42,706 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 07:04:42,706 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 07:04:42,706 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 07:04:42,706 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 07:04:42,707 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 07:04:42,707 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 07:04:42,707 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 07:04:42,707 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 07:04:42,707 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 07:04:42,708 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 07:04:42,708 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 07:04:42,709 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 07:04:42,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 07:04:42,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 07:04:42,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 07:04:42,710 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 07:04:42,711 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 07:04:42,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 07:04:42,711 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 07:04:42,711 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 07:04:42,711 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 07:04:42,991 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 07:04:43,004 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 07:04:43,008 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 07:04:43,010 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 07:04:43,011 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 07:04:43,012 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem06_label16.c [2020-10-13 07:04:43,093 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c8298d4b2/f56ab8874353471f941b7e2be680dedf/FLAGdcaacfe34 [2020-10-13 07:04:43,972 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 07:04:43,973 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem06_label16.c [2020-10-13 07:04:44,016 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c8298d4b2/f56ab8874353471f941b7e2be680dedf/FLAGdcaacfe34 [2020-10-13 07:04:44,436 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c8298d4b2/f56ab8874353471f941b7e2be680dedf [2020-10-13 07:04:44,445 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 07:04:44,448 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 07:04:44,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 07:04:44,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 07:04:44,453 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 07:04:44,454 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:04:44" (1/1) ... [2020-10-13 07:04:44,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e979d3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:04:44, skipping insertion in model container [2020-10-13 07:04:44,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:04:44" (1/1) ... [2020-10-13 07:04:44,465 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 07:04:44,730 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 07:04:46,981 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 07:04:46,986 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 07:04:48,114 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 07:04:48,172 INFO L208 MainTranslator]: Completed translation [2020-10-13 07:04:48,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:04:48 WrapperNode [2020-10-13 07:04:48,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 07:04:48,174 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 07:04:48,174 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 07:04:48,174 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 07:04:48,188 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:04:48" (1/1) ... [2020-10-13 07:04:48,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:04:48" (1/1) ... [2020-10-13 07:04:48,248 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:04:48" (1/1) ... [2020-10-13 07:04:48,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:04:48" (1/1) ... [2020-10-13 07:04:48,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:04:48" (1/1) ... [2020-10-13 07:04:48,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:04:48" (1/1) ... [2020-10-13 07:04:48,448 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:04:48" (1/1) ... [2020-10-13 07:04:48,493 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 07:04:48,494 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 07:04:48,494 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 07:04:48,494 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 07:04:48,495 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:04:48" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 07:04:48,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 07:04:48,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 07:04:48,559 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 07:04:48,559 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-13 07:04:48,559 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-13 07:04:48,559 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-13 07:04:48,559 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2020-10-13 07:04:48,560 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 07:04:48,560 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 07:04:48,560 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-13 07:04:48,560 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-13 07:04:48,560 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-13 07:04:48,561 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2020-10-13 07:04:48,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 07:04:48,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 07:04:48,561 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 07:04:48,561 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 07:04:48,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 07:04:48,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 07:04:55,176 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 07:04:55,177 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 07:04:55,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:04:55 BoogieIcfgContainer [2020-10-13 07:04:55,200 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 07:04:55,203 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 07:04:55,203 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 07:04:55,206 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 07:04:55,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:04:44" (1/3) ... [2020-10-13 07:04:55,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b42771f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:04:55, skipping insertion in model container [2020-10-13 07:04:55,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:04:48" (2/3) ... [2020-10-13 07:04:55,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b42771f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:04:55, skipping insertion in model container [2020-10-13 07:04:55,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:04:55" (3/3) ... [2020-10-13 07:04:55,212 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem06_label16.c [2020-10-13 07:04:55,226 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 07:04:55,241 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 07:04:55,260 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 07:04:55,299 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 07:04:55,299 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 07:04:55,299 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 07:04:55,299 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 07:04:55,299 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 07:04:55,300 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 07:04:55,300 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 07:04:55,300 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 07:04:55,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states. [2020-10-13 07:04:55,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1002 [2020-10-13 07:04:55,426 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 07:04:55,428 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 07:04:55,429 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 07:04:55,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 07:04:55,436 INFO L82 PathProgramCache]: Analyzing trace with hash -662871472, now seen corresponding path program 1 times [2020-10-13 07:04:55,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 07:04:55,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1711945554] [2020-10-13 07:04:55,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 07:04:56,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:04:56,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:04:57,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:05:01,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:05:01,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1017 [2020-10-13 07:05:01,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 07:05:01,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-10-13 07:05:01,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:05:01,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 07:05:01,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 07:05:01,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 769 [2020-10-13 07:05:01,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 07:05:06,693 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2020-10-13 07:05:06,895 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65 [2020-10-13 07:05:07,102 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65 [2020-10-13 07:05:07,246 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65 [2020-10-13 07:05:07,375 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-10-13 07:05:07,610 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2020-10-13 07:05:07,902 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 68 [2020-10-13 07:05:08,222 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 68 [2020-10-13 07:05:08,453 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 62 [2020-10-13 07:05:08,652 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2020-10-13 07:05:08,844 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2020-10-13 07:05:09,052 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 58 [2020-10-13 07:05:09,568 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 07:05:09,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 07:05:09,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:05:09,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:05:09,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:05:09,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 07:05:09,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:05:09,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 07:05:09,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:05:09,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 07:05:09,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 07:05:09,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 07:05:09,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:05:21,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 07:05:21,081 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1711945554] [2020-10-13 07:05:21,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 07:05:21,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-13 07:05:21,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523248025] [2020-10-13 07:05:21,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-13 07:05:21,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 07:05:21,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-13 07:05:21,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2020-10-13 07:05:21,111 INFO L87 Difference]: Start difference. First operand 1315 states. Second operand 18 states. [2020-10-13 07:05:21,449 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-13 07:05:22,042 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-13 07:05:22,583 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-13 07:05:23,184 WARN L193 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 174 [2020-10-13 07:05:26,856 WARN L193 SmtUtils]: Spent 765.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 173 [2020-10-13 07:05:29,922 WARN L193 SmtUtils]: Spent 904.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 175 [2020-10-13 07:05:32,241 WARN L193 SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 168 [2020-10-13 07:05:32,954 WARN L193 SmtUtils]: Spent 639.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 174 [2020-10-13 07:05:34,179 WARN L193 SmtUtils]: Spent 887.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 173 [2020-10-13 07:05:43,207 WARN L193 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 163 [2020-10-13 07:05:43,868 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 168 [2020-10-13 07:05:46,649 WARN L193 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 167 [2020-10-13 07:05:53,865 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 159 [2020-10-13 07:05:54,517 WARN L193 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 163 [2020-10-13 07:05:56,877 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 161 [2020-10-13 07:06:08,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 07:06:08,902 INFO L93 Difference]: Finished difference Result 3396 states and 6359 transitions. [2020-10-13 07:06:08,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 07:06:08,904 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 1001 [2020-10-13 07:06:08,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 07:06:08,944 INFO L225 Difference]: With dead ends: 3396 [2020-10-13 07:06:08,945 INFO L226 Difference]: Without dead ends: 2019 [2020-10-13 07:06:08,960 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=153, Invalid=903, Unknown=0, NotChecked=0, Total=1056 [2020-10-13 07:06:08,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2019 states. [2020-10-13 07:06:09,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2019 to 2019. [2020-10-13 07:06:09,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2019 states. [2020-10-13 07:06:09,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2019 states to 2019 states and 3053 transitions. [2020-10-13 07:06:09,093 INFO L78 Accepts]: Start accepts. Automaton has 2019 states and 3053 transitions. Word has length 1001 [2020-10-13 07:06:09,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 07:06:09,096 INFO L479 AbstractCegarLoop]: Abstraction has 2019 states and 3053 transitions. [2020-10-13 07:06:09,096 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-13 07:06:09,096 INFO L276 IsEmpty]: Start isEmpty. Operand 2019 states and 3053 transitions. [2020-10-13 07:06:09,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1072 [2020-10-13 07:06:09,145 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 07:06:09,146 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 07:06:09,146 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 07:06:09,146 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 07:06:09,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 07:06:09,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1747955677, now seen corresponding path program 1 times [2020-10-13 07:06:09,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 07:06:09,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [734479802] [2020-10-13 07:06:09,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 07:06:09,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:06:09,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:06:10,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:06:12,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:06:14,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:06:14,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1089 [2020-10-13 07:06:14,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 07:06:14,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-10-13 07:06:14,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:06:14,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 07:06:14,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 07:06:14,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 07:06:14,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 07:06:15,354 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 07:06:15,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 07:06:15,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:06:15,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:06:15,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:06:15,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 07:06:15,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:06:15,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 07:06:15,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:06:15,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 07:06:15,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 07:06:15,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 07:06:15,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:06:15,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 07:06:15,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:06:15,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:06:15,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:06:15,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 07:06:15,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:06:15,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-10-13 07:06:15,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:06:15,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 07:06:15,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 07:06:15,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 07:06:15,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:06:16,776 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 07:06:16,776 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [734479802] [2020-10-13 07:06:16,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 07:06:16,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 07:06:16,777 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801533820] [2020-10-13 07:06:16,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 07:06:16,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 07:06:16,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 07:06:16,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 07:06:16,781 INFO L87 Difference]: Start difference. First operand 2019 states and 3053 transitions. Second operand 8 states. [2020-10-13 07:06:16,962 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-13 07:06:18,100 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-13 07:06:18,688 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-13 07:06:52,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 07:06:52,408 INFO L93 Difference]: Finished difference Result 5708 states and 9785 transitions. [2020-10-13 07:06:52,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 07:06:52,411 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1071 [2020-10-13 07:06:52,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 07:06:52,437 INFO L225 Difference]: With dead ends: 5708 [2020-10-13 07:06:52,437 INFO L226 Difference]: Without dead ends: 4449 [2020-10-13 07:06:52,442 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2020-10-13 07:06:52,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4449 states. [2020-10-13 07:06:52,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4449 to 4331. [2020-10-13 07:06:52,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4331 states. [2020-10-13 07:06:52,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4331 states to 4331 states and 6611 transitions. [2020-10-13 07:06:52,553 INFO L78 Accepts]: Start accepts. Automaton has 4331 states and 6611 transitions. Word has length 1071 [2020-10-13 07:06:52,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 07:06:52,554 INFO L479 AbstractCegarLoop]: Abstraction has 4331 states and 6611 transitions. [2020-10-13 07:06:52,554 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 07:06:52,554 INFO L276 IsEmpty]: Start isEmpty. Operand 4331 states and 6611 transitions. [2020-10-13 07:06:52,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1124 [2020-10-13 07:06:52,574 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 07:06:52,575 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 07:06:52,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 07:06:52,575 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 07:06:52,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 07:06:52,576 INFO L82 PathProgramCache]: Analyzing trace with hash -658361606, now seen corresponding path program 1 times [2020-10-13 07:06:52,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 07:06:52,577 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1807520872] [2020-10-13 07:06:52,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 07:06:53,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:06:53,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:06:54,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:06:58,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:06:58,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:06:58,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1141 [2020-10-13 07:06:58,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 07:06:58,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5090 [2020-10-13 07:06:58,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:06:58,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 07:06:58,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 07:06:58,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 552 [2020-10-13 07:06:58,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 07:07:01,060 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2020-10-13 07:07:01,264 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-10-13 07:07:01,483 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2020-10-13 07:07:01,759 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 75 [2020-10-13 07:07:02,103 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 75 [2020-10-13 07:07:02,541 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 80 [2020-10-13 07:07:02,942 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 71 [2020-10-13 07:07:03,274 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 63 [2020-10-13 07:07:03,438 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 07:07:03,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 07:07:03,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:07:03,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:07:03,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:07:03,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 07:07:03,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:07:03,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 07:07:03,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:07:03,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 07:07:03,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 07:07:03,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 07:07:03,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:07:03,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 07:07:03,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:07:03,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:07:03,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:07:03,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-13 07:07:03,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:07:03,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 308 [2020-10-13 07:07:03,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:07:03,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 07:07:03,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 07:07:03,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-13 07:07:03,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:07:15,467 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 07:07:15,467 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1807520872] [2020-10-13 07:07:15,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 07:07:15,468 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-13 07:07:15,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055734657] [2020-10-13 07:07:15,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-13 07:07:15,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 07:07:15,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-13 07:07:15,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2020-10-13 07:07:15,474 INFO L87 Difference]: Start difference. First operand 4331 states and 6611 transitions. Second operand 18 states. [2020-10-13 07:07:15,710 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-13 07:07:17,749 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 89 [2020-10-13 07:07:17,992 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2020-10-13 07:07:18,363 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 93 [2020-10-13 07:07:19,023 WARN L193 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 179 [2020-10-13 07:07:19,778 WARN L193 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 199 [2020-10-13 07:07:21,062 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 196 [2020-10-13 07:07:24,062 WARN L193 SmtUtils]: Spent 757.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 197 [2020-10-13 07:07:33,215 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 176 [2020-10-13 07:07:34,068 WARN L193 SmtUtils]: Spent 774.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 190 [2020-10-13 07:07:35,785 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 222 DAG size of output: 187 [2020-10-13 07:07:45,065 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 223 DAG size of output: 184 [2020-10-13 07:07:46,301 WARN L193 SmtUtils]: Spent 804.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 181 [2020-10-13 07:08:10,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 07:08:10,319 INFO L93 Difference]: Finished difference Result 11936 states and 19270 transitions. [2020-10-13 07:08:10,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 07:08:10,320 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 1123 [2020-10-13 07:08:10,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 07:08:10,357 INFO L225 Difference]: With dead ends: 11936 [2020-10-13 07:08:10,357 INFO L226 Difference]: Without dead ends: 8365 [2020-10-13 07:08:10,367 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=234, Invalid=822, Unknown=0, NotChecked=0, Total=1056 [2020-10-13 07:08:10,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8365 states. [2020-10-13 07:08:10,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8365 to 8246. [2020-10-13 07:08:10,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8246 states. [2020-10-13 07:08:10,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8246 states to 8246 states and 12691 transitions. [2020-10-13 07:08:10,570 INFO L78 Accepts]: Start accepts. Automaton has 8246 states and 12691 transitions. Word has length 1123 [2020-10-13 07:08:10,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 07:08:10,572 INFO L479 AbstractCegarLoop]: Abstraction has 8246 states and 12691 transitions. [2020-10-13 07:08:10,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-13 07:08:10,572 INFO L276 IsEmpty]: Start isEmpty. Operand 8246 states and 12691 transitions. [2020-10-13 07:08:10,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1149 [2020-10-13 07:08:10,603 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 07:08:10,604 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 07:08:10,604 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 07:08:10,604 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 07:08:10,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 07:08:10,605 INFO L82 PathProgramCache]: Analyzing trace with hash 804207981, now seen corresponding path program 1 times [2020-10-13 07:08:10,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 07:08:10,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1034980328] [2020-10-13 07:08:10,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 07:08:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:08:11,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:08:11,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:08:16,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:08:16,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1168 [2020-10-13 07:08:16,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 07:08:16,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-13 07:08:16,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:08:16,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-13 07:08:16,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 07:08:16,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 891 [2020-10-13 07:08:16,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:08:19,866 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2020-10-13 07:08:20,147 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2020-10-13 07:08:20,381 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2020-10-13 07:08:20,609 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2020-10-13 07:08:20,842 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2020-10-13 07:08:21,074 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2020-10-13 07:08:21,305 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2020-10-13 07:08:21,489 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2020-10-13 07:08:21,717 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2020-10-13 07:08:22,034 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 68 [2020-10-13 07:08:22,356 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 68 [2020-10-13 07:08:22,658 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 57 [2020-10-13 07:08:22,987 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 43 [2020-10-13 07:08:23,188 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 42 [2020-10-13 07:08:23,391 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 42 [2020-10-13 07:08:23,576 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 07:08:23,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 07:08:23,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:08:23,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:08:23,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:08:23,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 07:08:23,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:08:23,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 07:08:23,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:08:23,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 07:08:23,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 07:08:23,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 07:08:23,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:08:23,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 07:08:23,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:08:23,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:08:23,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:08:23,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-13 07:08:23,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:08:23,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-10-13 07:08:23,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:08:23,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 07:08:23,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 07:08:23,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-13 07:08:23,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:08:24,450 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2020-10-13 07:08:24,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-13 07:08:24,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:08:24,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:08:24,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:08:24,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 07:08:24,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:08:24,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-13 07:08:24,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:08:24,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 07:08:24,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 07:08:24,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 07:08:24,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 07:08:24,922 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-10-13 07:08:25,301 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81