/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 23:52:25,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 23:52:25,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 23:52:25,702 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 23:52:25,702 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 23:52:25,712 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 23:52:25,714 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 23:52:25,718 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 23:52:25,719 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 23:52:25,720 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 23:52:25,721 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 23:52:25,722 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 23:52:25,722 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 23:52:25,723 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 23:52:25,724 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 23:52:25,725 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 23:52:25,726 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 23:52:25,727 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 23:52:25,728 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 23:52:25,730 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 23:52:25,734 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 23:52:25,736 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 23:52:25,737 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 23:52:25,737 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 23:52:25,740 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 23:52:25,740 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 23:52:25,741 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 23:52:25,741 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 23:52:25,742 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 23:52:25,743 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 23:52:25,743 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 23:52:25,744 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 23:52:25,744 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 23:52:25,745 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 23:52:25,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 23:52:25,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 23:52:25,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 23:52:25,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 23:52:25,747 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 23:52:25,748 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 23:52:25,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 23:52:25,750 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 [2020-10-14 23:52:25,772 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 23:52:25,773 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 23:52:25,774 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 23:52:25,774 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 23:52:25,774 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 23:52:25,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 23:52:25,775 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 23:52:25,775 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 23:52:25,775 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 23:52:25,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 23:52:25,775 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 23:52:25,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 23:52:25,776 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 23:52:25,776 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 23:52:25,776 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 23:52:25,776 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 23:52:25,776 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 23:52:25,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 23:52:25,777 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 23:52:25,777 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 23:52:25,777 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 23:52:25,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 23:52:25,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 23:52:25,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 23:52:25,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 23:52:25,778 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 23:52:25,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 23:52:25,779 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 23:52:25,779 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 23:52:25,779 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 23:52:26,084 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 23:52:26,101 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 23:52:26,108 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 23:52:26,110 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 23:52:26,111 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 23:52:26,111 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c [2020-10-14 23:52:26,180 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fad85a9de/301f2ad6766147e39f613aa0991ee654/FLAGf78046840 [2020-10-14 23:52:26,639 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 23:52:26,640 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c [2020-10-14 23:52:26,649 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fad85a9de/301f2ad6766147e39f613aa0991ee654/FLAGf78046840 [2020-10-14 23:52:26,961 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fad85a9de/301f2ad6766147e39f613aa0991ee654 [2020-10-14 23:52:26,973 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 23:52:26,976 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 23:52:26,977 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 23:52:26,977 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 23:52:26,981 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 23:52:26,982 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:52:26" (1/1) ... [2020-10-14 23:52:26,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e5e3f92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:26, skipping insertion in model container [2020-10-14 23:52:26,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:52:26" (1/1) ... [2020-10-14 23:52:26,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 23:52:27,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 23:52:27,248 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 23:52:27,253 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 23:52:27,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 23:52:27,307 INFO L208 MainTranslator]: Completed translation [2020-10-14 23:52:27,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:27 WrapperNode [2020-10-14 23:52:27,307 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 23:52:27,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 23:52:27,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 23:52:27,309 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 23:52:27,416 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:27" (1/1) ... [2020-10-14 23:52:27,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:27" (1/1) ... [2020-10-14 23:52:27,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:27" (1/1) ... [2020-10-14 23:52:27,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:27" (1/1) ... [2020-10-14 23:52:27,432 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:27" (1/1) ... [2020-10-14 23:52:27,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:27" (1/1) ... [2020-10-14 23:52:27,438 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:27" (1/1) ... [2020-10-14 23:52:27,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 23:52:27,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 23:52:27,442 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 23:52:27,442 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 23:52:27,443 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:27" (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 [2020-10-14 23:52:27,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 23:52:27,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 23:52:27,507 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 23:52:27,507 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 23:52:27,507 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 23:52:27,507 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 23:52:27,507 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 23:52:27,507 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-14 23:52:27,507 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 23:52:27,508 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 23:52:27,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 23:52:27,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 23:52:27,860 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 23:52:27,860 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 23:52:27,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:52:27 BoogieIcfgContainer [2020-10-14 23:52:27,866 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 23:52:27,868 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 23:52:27,868 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 23:52:27,872 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 23:52:27,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:52:26" (1/3) ... [2020-10-14 23:52:27,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7069dd2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:52:27, skipping insertion in model container [2020-10-14 23:52:27,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:27" (2/3) ... [2020-10-14 23:52:27,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7069dd2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:52:27, skipping insertion in model container [2020-10-14 23:52:27,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:52:27" (3/3) ... [2020-10-14 23:52:27,876 INFO L109 eAbstractionObserver]: Analyzing ICFG SpamAssassin-loop.i.v+cfa-reducer.c [2020-10-14 23:52:27,888 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 23:52:27,896 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-10-14 23:52:27,912 INFO L251 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-10-14 23:52:27,943 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 23:52:27,944 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 23:52:27,944 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 23:52:27,944 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 23:52:27,944 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 23:52:27,944 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 23:52:27,944 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 23:52:27,945 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 23:52:27,970 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2020-10-14 23:52:27,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-14 23:52:27,976 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:27,977 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:27,978 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:27,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:27,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1781845407, now seen corresponding path program 1 times [2020-10-14 23:52:27,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:27,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [578719523] [2020-10-14 23:52:27,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:28,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:28,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:28,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:28,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-14 23:52:28,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:28,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-14 23:52:28,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:28,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:28,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:52:28,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 23:52:28,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 23:52:28,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 23:52:28,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:28,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:28,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:28,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:28,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:52:28,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:28,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 23:52:28,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:28,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:28,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:28,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:28,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:28,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:28,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:52:28,322 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [578719523] [2020-10-14 23:52:28,324 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:52:28,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 23:52:28,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538080515] [2020-10-14 23:52:28,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 23:52:28,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:28,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 23:52:28,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 23:52:28,351 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 4 states. [2020-10-14 23:52:28,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:28,498 INFO L93 Difference]: Finished difference Result 90 states and 118 transitions. [2020-10-14 23:52:28,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 23:52:28,500 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-14 23:52:28,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:28,511 INFO L225 Difference]: With dead ends: 90 [2020-10-14 23:52:28,511 INFO L226 Difference]: Without dead ends: 76 [2020-10-14 23:52:28,515 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 23:52:28,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-10-14 23:52:28,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 59. [2020-10-14 23:52:28,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-14 23:52:28,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 63 transitions. [2020-10-14 23:52:28,568 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 63 transitions. Word has length 13 [2020-10-14 23:52:28,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:28,569 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 63 transitions. [2020-10-14 23:52:28,569 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 23:52:28,569 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 63 transitions. [2020-10-14 23:52:28,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-14 23:52:28,570 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:28,570 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:28,571 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 23:52:28,571 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:28,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:28,572 INFO L82 PathProgramCache]: Analyzing trace with hash -594195383, now seen corresponding path program 1 times [2020-10-14 23:52:28,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:28,573 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [380918627] [2020-10-14 23:52:28,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:28,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:28,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:28,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:28,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:28,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 23:52:28,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:52:28,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-10-14 23:52:28,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:28,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:28,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 23:52:28,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 23:52:28,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:52:28,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 23:52:28,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:28,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:28,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:28,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:28,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:52:28,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:28,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:52:28,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:28,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:28,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:28,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:28,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:28,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-14 23:52:28,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:52:28,919 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [380918627] [2020-10-14 23:52:28,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:52:28,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 23:52:28,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884881241] [2020-10-14 23:52:28,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 23:52:28,922 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:28,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 23:52:28,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 23:52:28,923 INFO L87 Difference]: Start difference. First operand 59 states and 63 transitions. Second operand 5 states. [2020-10-14 23:52:29,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:29,220 INFO L93 Difference]: Finished difference Result 153 states and 168 transitions. [2020-10-14 23:52:29,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 23:52:29,221 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-14 23:52:29,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:29,222 INFO L225 Difference]: With dead ends: 153 [2020-10-14 23:52:29,223 INFO L226 Difference]: Without dead ends: 101 [2020-10-14 23:52:29,225 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-14 23:52:29,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-10-14 23:52:29,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 58. [2020-10-14 23:52:29,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-10-14 23:52:29,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2020-10-14 23:52:29,236 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 14 [2020-10-14 23:52:29,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:29,237 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2020-10-14 23:52:29,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 23:52:29,237 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2020-10-14 23:52:29,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-14 23:52:29,238 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:29,238 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:29,238 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 23:52:29,239 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:29,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:29,239 INFO L82 PathProgramCache]: Analyzing trace with hash -597364152, now seen corresponding path program 1 times [2020-10-14 23:52:29,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:29,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [265254072] [2020-10-14 23:52:29,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:29,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:29,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:29,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:29,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 23:52:29,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:29,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 23:52:29,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:29,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:29,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 23:52:29,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 23:52:29,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 23:52:29,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:29,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:29,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:29,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:29,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:29,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:52:29,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:29,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 23:52:29,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:29,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:29,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:29,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:29,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:29,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:29,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:52:29,388 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [265254072] [2020-10-14 23:52:29,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:52:29,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 23:52:29,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838399438] [2020-10-14 23:52:29,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 23:52:29,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:29,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 23:52:29,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 23:52:29,390 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand 5 states. [2020-10-14 23:52:29,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:29,507 INFO L93 Difference]: Finished difference Result 75 states and 82 transitions. [2020-10-14 23:52:29,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 23:52:29,507 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-14 23:52:29,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:29,509 INFO L225 Difference]: With dead ends: 75 [2020-10-14 23:52:29,509 INFO L226 Difference]: Without dead ends: 73 [2020-10-14 23:52:29,509 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-14 23:52:29,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-10-14 23:52:29,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 56. [2020-10-14 23:52:29,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-14 23:52:29,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2020-10-14 23:52:29,519 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 14 [2020-10-14 23:52:29,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:29,520 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2020-10-14 23:52:29,520 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 23:52:29,520 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2020-10-14 23:52:29,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-14 23:52:29,521 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:29,522 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:29,522 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 23:52:29,522 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:29,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:29,523 INFO L82 PathProgramCache]: Analyzing trace with hash -1240184593, now seen corresponding path program 1 times [2020-10-14 23:52:29,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:29,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1387490519] [2020-10-14 23:52:29,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:29,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:29,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:29,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:29,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 23:52:29,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:29,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 23:52:29,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:29,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:29,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 23:52:29,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 23:52:29,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:52:29,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:29,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:29,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:29,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:29,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:29,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:52:29,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:29,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:29,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:29,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:29,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:29,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:29,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:29,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:29,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:52:29,659 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1387490519] [2020-10-14 23:52:29,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:52:29,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 23:52:29,659 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588513573] [2020-10-14 23:52:29,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 23:52:29,660 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:29,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 23:52:29,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 23:52:29,661 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand 5 states. [2020-10-14 23:52:29,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:29,809 INFO L93 Difference]: Finished difference Result 96 states and 104 transitions. [2020-10-14 23:52:29,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 23:52:29,809 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-14 23:52:29,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:29,811 INFO L225 Difference]: With dead ends: 96 [2020-10-14 23:52:29,811 INFO L226 Difference]: Without dead ends: 94 [2020-10-14 23:52:29,811 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-14 23:52:29,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-10-14 23:52:29,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 54. [2020-10-14 23:52:29,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-14 23:52:29,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2020-10-14 23:52:29,819 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 15 [2020-10-14 23:52:29,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:29,820 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2020-10-14 23:52:29,820 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 23:52:29,820 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2020-10-14 23:52:29,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-14 23:52:29,821 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:29,821 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:29,821 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 23:52:29,821 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:29,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:29,822 INFO L82 PathProgramCache]: Analyzing trace with hash 208986383, now seen corresponding path program 1 times [2020-10-14 23:52:29,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:29,822 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1602274611] [2020-10-14 23:52:29,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:29,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:29,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:29,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:29,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 23:52:29,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:29,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 23:52:29,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:29,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:29,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:52:29,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 23:52:29,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 23:52:29,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:29,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:29,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:29,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:29,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:29,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:52:29,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:29,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:52:29,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:29,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:29,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:29,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:29,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:29,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:29,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:52:29,930 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1602274611] [2020-10-14 23:52:29,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:52:29,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 23:52:29,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928324192] [2020-10-14 23:52:29,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 23:52:29,932 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:29,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 23:52:29,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 23:52:29,933 INFO L87 Difference]: Start difference. First operand 54 states and 58 transitions. Second operand 6 states. [2020-10-14 23:52:30,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:30,167 INFO L93 Difference]: Finished difference Result 95 states and 103 transitions. [2020-10-14 23:52:30,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 23:52:30,168 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-10-14 23:52:30,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:30,170 INFO L225 Difference]: With dead ends: 95 [2020-10-14 23:52:30,170 INFO L226 Difference]: Without dead ends: 93 [2020-10-14 23:52:30,171 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-10-14 23:52:30,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-14 23:52:30,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 52. [2020-10-14 23:52:30,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-14 23:52:30,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2020-10-14 23:52:30,178 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 16 [2020-10-14 23:52:30,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:30,179 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2020-10-14 23:52:30,179 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 23:52:30,179 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2020-10-14 23:52:30,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-14 23:52:30,180 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:30,180 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:30,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 23:52:30,181 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:30,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:30,182 INFO L82 PathProgramCache]: Analyzing trace with hash 1458792136, now seen corresponding path program 1 times [2020-10-14 23:52:30,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:30,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [81403826] [2020-10-14 23:52:30,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:30,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:30,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:30,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:30,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:30,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:30,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 23:52:30,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 23:52:30,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-14 23:52:30,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:30,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:30,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 23:52:30,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 23:52:30,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:52:30,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:30,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:30,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:30,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:30,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:30,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:52:30,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:30,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:30,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:30,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:30,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:30,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:30,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:30,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:30,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:52:30,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [81403826] [2020-10-14 23:52:30,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:52:30,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 23:52:30,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719207283] [2020-10-14 23:52:30,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 23:52:30,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:30,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 23:52:30,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 23:52:30,332 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand 5 states. [2020-10-14 23:52:30,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:30,461 INFO L93 Difference]: Finished difference Result 69 states and 77 transitions. [2020-10-14 23:52:30,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 23:52:30,461 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-14 23:52:30,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:30,463 INFO L225 Difference]: With dead ends: 69 [2020-10-14 23:52:30,463 INFO L226 Difference]: Without dead ends: 67 [2020-10-14 23:52:30,463 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-14 23:52:30,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-10-14 23:52:30,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 50. [2020-10-14 23:52:30,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-14 23:52:30,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2020-10-14 23:52:30,470 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 16 [2020-10-14 23:52:30,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:30,471 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2020-10-14 23:52:30,471 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 23:52:30,471 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2020-10-14 23:52:30,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-14 23:52:30,472 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:30,472 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:30,472 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 23:52:30,472 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:30,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:30,473 INFO L82 PathProgramCache]: Analyzing trace with hash -2111353611, now seen corresponding path program 1 times [2020-10-14 23:52:30,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:30,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1008782197] [2020-10-14 23:52:30,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:30,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:30,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:30,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:30,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 23:52:30,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:30,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 23:52:30,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:30,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:30,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 23:52:30,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 23:52:30,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 23:52:30,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:30,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:30,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:30,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:30,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:30,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:52:30,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:30,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:30,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:30,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:30,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:30,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:30,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:30,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:30,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:52:30,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1008782197] [2020-10-14 23:52:30,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:52:30,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 23:52:30,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880783396] [2020-10-14 23:52:30,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 23:52:30,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:30,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 23:52:30,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 23:52:30,554 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand 5 states. [2020-10-14 23:52:30,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:30,680 INFO L93 Difference]: Finished difference Result 91 states and 99 transitions. [2020-10-14 23:52:30,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 23:52:30,680 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-14 23:52:30,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:30,681 INFO L225 Difference]: With dead ends: 91 [2020-10-14 23:52:30,682 INFO L226 Difference]: Without dead ends: 89 [2020-10-14 23:52:30,682 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-14 23:52:30,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-10-14 23:52:30,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 48. [2020-10-14 23:52:30,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-14 23:52:30,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2020-10-14 23:52:30,689 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 17 [2020-10-14 23:52:30,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:30,689 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2020-10-14 23:52:30,689 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 23:52:30,689 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2020-10-14 23:52:30,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-14 23:52:30,690 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:30,690 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:30,690 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 23:52:30,691 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:30,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:30,691 INFO L82 PathProgramCache]: Analyzing trace with hash -2022080917, now seen corresponding path program 1 times [2020-10-14 23:52:30,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:30,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1791409120] [2020-10-14 23:52:30,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:30,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:30,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:30,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:30,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:30,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 23:52:30,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:52:30,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 23:52:30,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:30,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:30,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 23:52:30,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 23:52:30,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 23:52:30,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:30,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:30,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:30,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:30,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:30,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:52:30,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:30,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:30,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:30,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:30,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:30,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:30,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:30,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:30,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:52:30,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1791409120] [2020-10-14 23:52:30,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:52:30,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 23:52:30,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415994958] [2020-10-14 23:52:30,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 23:52:30,795 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:30,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 23:52:30,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 23:52:30,796 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 5 states. [2020-10-14 23:52:30,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:30,922 INFO L93 Difference]: Finished difference Result 62 states and 70 transitions. [2020-10-14 23:52:30,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 23:52:30,923 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-14 23:52:30,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:30,924 INFO L225 Difference]: With dead ends: 62 [2020-10-14 23:52:30,924 INFO L226 Difference]: Without dead ends: 60 [2020-10-14 23:52:30,924 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-14 23:52:30,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-14 23:52:30,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 46. [2020-10-14 23:52:30,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-14 23:52:30,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2020-10-14 23:52:30,932 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 17 [2020-10-14 23:52:30,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:30,933 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2020-10-14 23:52:30,933 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 23:52:30,933 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2020-10-14 23:52:30,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-14 23:52:30,934 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:30,934 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:30,934 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 23:52:30,934 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:30,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:30,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1740004142, now seen corresponding path program 1 times [2020-10-14 23:52:30,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:30,935 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [868838936] [2020-10-14 23:52:30,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:30,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:30,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:30,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:30,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-14 23:52:30,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:30,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 23:52:30,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:30,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:30,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:52:30,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 23:52:30,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 23:52:30,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:31,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:31,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:31,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:31,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:31,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:52:31,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:31,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:31,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:31,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:31,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:31,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:31,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:31,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:31,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:52:31,028 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [868838936] [2020-10-14 23:52:31,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:52:31,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 23:52:31,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052391511] [2020-10-14 23:52:31,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 23:52:31,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:31,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 23:52:31,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 23:52:31,030 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand 6 states. [2020-10-14 23:52:31,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:31,172 INFO L93 Difference]: Finished difference Result 61 states and 69 transitions. [2020-10-14 23:52:31,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 23:52:31,173 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-10-14 23:52:31,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:31,174 INFO L225 Difference]: With dead ends: 61 [2020-10-14 23:52:31,174 INFO L226 Difference]: Without dead ends: 59 [2020-10-14 23:52:31,174 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-10-14 23:52:31,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-14 23:52:31,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 44. [2020-10-14 23:52:31,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-14 23:52:31,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2020-10-14 23:52:31,180 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 18 [2020-10-14 23:52:31,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:31,180 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2020-10-14 23:52:31,181 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 23:52:31,181 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2020-10-14 23:52:31,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-14 23:52:31,181 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:31,182 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:52:31,182 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 23:52:31,182 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:31,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:31,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1894443311, now seen corresponding path program 1 times [2020-10-14 23:52:31,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:31,183 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [57366721] [2020-10-14 23:52:31,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:31,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:31,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:31,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:31,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 23:52:31,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:31,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 23:52:31,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:31,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:31,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 23:52:31,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 23:52:31,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 23:52:31,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:31,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:31,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:31,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:31,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:31,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:52:31,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:31,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:31,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:31,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:31,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:31,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:31,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:31,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:31,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:52:31,266 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [57366721] [2020-10-14 23:52:31,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:52:31,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 23:52:31,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953197680] [2020-10-14 23:52:31,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 23:52:31,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:31,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 23:52:31,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 23:52:31,268 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand 5 states. [2020-10-14 23:52:31,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:31,377 INFO L93 Difference]: Finished difference Result 61 states and 69 transitions. [2020-10-14 23:52:31,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 23:52:31,378 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-10-14 23:52:31,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:31,378 INFO L225 Difference]: With dead ends: 61 [2020-10-14 23:52:31,379 INFO L226 Difference]: Without dead ends: 59 [2020-10-14 23:52:31,379 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-14 23:52:31,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-14 23:52:31,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 42. [2020-10-14 23:52:31,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-14 23:52:31,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2020-10-14 23:52:31,385 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 19 [2020-10-14 23:52:31,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:31,386 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2020-10-14 23:52:31,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 23:52:31,386 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2020-10-14 23:52:31,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-14 23:52:31,387 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:31,387 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] [2020-10-14 23:52:31,387 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 23:52:31,388 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:31,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:31,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1401802644, now seen corresponding path program 1 times [2020-10-14 23:52:31,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:31,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [44861729] [2020-10-14 23:52:31,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:31,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:31,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:31,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:31,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 23:52:31,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:31,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 23:52:31,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:31,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:31,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 23:52:31,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 23:52:31,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 23:52:31,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:31,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:31,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:31,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:31,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:31,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:52:31,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:31,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:31,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:31,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:31,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:31,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:31,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:31,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:31,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:52:31,510 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [44861729] [2020-10-14 23:52:31,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:52:31,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 23:52:31,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870016703] [2020-10-14 23:52:31,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 23:52:31,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:31,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 23:52:31,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 23:52:31,512 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 5 states. [2020-10-14 23:52:31,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:31,721 INFO L93 Difference]: Finished difference Result 69 states and 77 transitions. [2020-10-14 23:52:31,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 23:52:31,722 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-10-14 23:52:31,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:31,723 INFO L225 Difference]: With dead ends: 69 [2020-10-14 23:52:31,723 INFO L226 Difference]: Without dead ends: 67 [2020-10-14 23:52:31,724 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-14 23:52:31,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-10-14 23:52:31,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 40. [2020-10-14 23:52:31,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-14 23:52:31,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2020-10-14 23:52:31,730 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 20 [2020-10-14 23:52:31,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:31,730 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2020-10-14 23:52:31,730 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 23:52:31,730 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2020-10-14 23:52:31,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-14 23:52:31,731 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:31,731 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] [2020-10-14 23:52:31,731 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 23:52:31,732 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:31,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:31,732 INFO L82 PathProgramCache]: Analyzing trace with hash 506212151, now seen corresponding path program 1 times [2020-10-14 23:52:31,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:31,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1570097972] [2020-10-14 23:52:31,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:31,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:31,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:31,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:31,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:32,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:32,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 23:52:32,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 23:52:32,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-10-14 23:52:32,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:32,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:32,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:52:32,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 23:52:32,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 23:52:32,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:32,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:32,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:32,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:32,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:32,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:52:32,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:32,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:32,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:32,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:32,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:32,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:32,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:32,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:32,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:52:32,063 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1570097972] [2020-10-14 23:52:32,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:52:32,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 23:52:32,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510612816] [2020-10-14 23:52:32,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 23:52:32,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:32,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 23:52:32,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 23:52:32,065 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand 6 states. [2020-10-14 23:52:32,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:32,221 INFO L93 Difference]: Finished difference Result 74 states and 85 transitions. [2020-10-14 23:52:32,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 23:52:32,222 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-10-14 23:52:32,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:32,223 INFO L225 Difference]: With dead ends: 74 [2020-10-14 23:52:32,223 INFO L226 Difference]: Without dead ends: 72 [2020-10-14 23:52:32,224 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-14 23:52:32,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-14 23:52:32,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 38. [2020-10-14 23:52:32,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-14 23:52:32,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2020-10-14 23:52:32,229 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 21 [2020-10-14 23:52:32,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:32,229 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2020-10-14 23:52:32,229 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 23:52:32,229 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2020-10-14 23:52:32,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-14 23:52:32,230 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:32,230 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] [2020-10-14 23:52:32,231 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 23:52:32,231 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:32,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:32,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1487289350, now seen corresponding path program 1 times [2020-10-14 23:52:32,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:32,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1384604685] [2020-10-14 23:52:32,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:32,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:32,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:32,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:32,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-14 23:52:32,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:32,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 23:52:32,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:32,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:32,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 23:52:32,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 23:52:32,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 23:52:32,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:32,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:32,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:32,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:32,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:32,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:52:32,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:32,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:52:32,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:32,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:32,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:32,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:32,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:32,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:32,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:52:32,373 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1384604685] [2020-10-14 23:52:32,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:52:32,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 23:52:32,374 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704580174] [2020-10-14 23:52:32,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 23:52:32,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:32,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 23:52:32,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 23:52:32,376 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 7 states. [2020-10-14 23:52:32,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:32,590 INFO L93 Difference]: Finished difference Result 62 states and 73 transitions. [2020-10-14 23:52:32,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 23:52:32,591 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2020-10-14 23:52:32,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:32,592 INFO L225 Difference]: With dead ends: 62 [2020-10-14 23:52:32,592 INFO L226 Difference]: Without dead ends: 60 [2020-10-14 23:52:32,593 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2020-10-14 23:52:32,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-14 23:52:32,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 36. [2020-10-14 23:52:32,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-14 23:52:32,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2020-10-14 23:52:32,600 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 22 [2020-10-14 23:52:32,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:32,601 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2020-10-14 23:52:32,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 23:52:32,601 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2020-10-14 23:52:32,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-14 23:52:32,605 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:32,605 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] [2020-10-14 23:52:32,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 23:52:32,606 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:32,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:32,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1138673565, now seen corresponding path program 1 times [2020-10-14 23:52:32,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:32,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [722595934] [2020-10-14 23:52:32,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:32,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:32,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:32,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:32,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:32,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 23:52:32,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:52:32,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-14 23:52:32,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:32,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:32,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:52:32,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 23:52:32,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 23:52:32,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:32,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:32,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:32,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:32,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:32,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:52:32,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:32,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:32,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:32,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:32,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:32,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:32,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:32,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:52:32,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:52:32,776 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [722595934] [2020-10-14 23:52:32,776 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:52:32,776 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 23:52:32,777 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775151238] [2020-10-14 23:52:32,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 23:52:32,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:32,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 23:52:32,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 23:52:32,779 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 6 states. [2020-10-14 23:52:32,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:32,986 INFO L93 Difference]: Finished difference Result 87 states and 101 transitions. [2020-10-14 23:52:32,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 23:52:32,987 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2020-10-14 23:52:32,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:32,988 INFO L225 Difference]: With dead ends: 87 [2020-10-14 23:52:32,988 INFO L226 Difference]: Without dead ends: 85 [2020-10-14 23:52:32,988 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-10-14 23:52:32,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-14 23:52:32,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 34. [2020-10-14 23:52:32,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-14 23:52:33,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2020-10-14 23:52:33,002 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 23 [2020-10-14 23:52:33,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:33,002 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2020-10-14 23:52:33,002 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 23:52:33,002 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2020-10-14 23:52:33,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-14 23:52:33,003 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:33,003 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] [2020-10-14 23:52:33,003 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 23:52:33,004 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:33,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:33,005 INFO L82 PathProgramCache]: Analyzing trace with hash 939145312, now seen corresponding path program 1 times [2020-10-14 23:52:33,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:33,005 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1023897490] [2020-10-14 23:52:33,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:33,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:33,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:33,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:33,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 23:52:33,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:33,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-14 23:52:33,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:33,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:33,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 23:52:33,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 23:52:33,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 23:52:33,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:33,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:33,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:33,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:33,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:33,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:52:33,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:33,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:33,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:33,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:33,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:33,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:33,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:33,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:33,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:52:33,170 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1023897490] [2020-10-14 23:52:33,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:52:33,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 23:52:33,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154561593] [2020-10-14 23:52:33,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 23:52:33,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:33,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 23:52:33,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 23:52:33,171 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand 7 states. [2020-10-14 23:52:33,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:33,373 INFO L93 Difference]: Finished difference Result 60 states and 71 transitions. [2020-10-14 23:52:33,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 23:52:33,374 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2020-10-14 23:52:33,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:33,375 INFO L225 Difference]: With dead ends: 60 [2020-10-14 23:52:33,375 INFO L226 Difference]: Without dead ends: 58 [2020-10-14 23:52:33,375 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2020-10-14 23:52:33,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-14 23:52:33,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 32. [2020-10-14 23:52:33,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-14 23:52:33,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2020-10-14 23:52:33,395 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 24 [2020-10-14 23:52:33,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:33,395 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2020-10-14 23:52:33,396 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 23:52:33,396 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2020-10-14 23:52:33,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-14 23:52:33,396 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:52:33,396 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] [2020-10-14 23:52:33,397 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 23:52:33,397 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:52:33,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:52:33,397 INFO L82 PathProgramCache]: Analyzing trace with hash -951263229, now seen corresponding path program 1 times [2020-10-14 23:52:33,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:52:33,398 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1087882721] [2020-10-14 23:52:33,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:52:33,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:33,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:33,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:33,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:33,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:33,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-14 23:52:33,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 23:52:33,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-14 23:52:33,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:33,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:33,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 23:52:33,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 23:52:33,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 23:52:33,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:33,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:52:33,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:52:33,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:52:33,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:52:33,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:52:33,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:52:33,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:52:33,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:52:33,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:52:33,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:52:33,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:52:33,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:52:33,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:52:33,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:52:33,650 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1087882721] [2020-10-14 23:52:33,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:52:33,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 23:52:33,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186784494] [2020-10-14 23:52:33,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 23:52:33,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:52:33,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 23:52:33,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 23:52:33,651 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 7 states. [2020-10-14 23:52:33,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:52:33,955 INFO L93 Difference]: Finished difference Result 125 states and 147 transitions. [2020-10-14 23:52:33,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 23:52:33,955 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2020-10-14 23:52:33,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:52:33,956 INFO L225 Difference]: With dead ends: 125 [2020-10-14 23:52:33,956 INFO L226 Difference]: Without dead ends: 0 [2020-10-14 23:52:33,957 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2020-10-14 23:52:33,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-14 23:52:33,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-14 23:52:33,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-14 23:52:33,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-14 23:52:33,958 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2020-10-14 23:52:33,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:52:33,958 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-14 23:52:33,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 23:52:33,958 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-14 23:52:33,958 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-14 23:52:33,959 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 23:52:33,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-14 23:52:34,519 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 83 [2020-10-14 23:52:34,863 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 73 [2020-10-14 23:52:35,102 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 57 [2020-10-14 23:52:35,389 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 35 [2020-10-14 23:52:35,530 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 22 [2020-10-14 23:52:35,647 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 13 [2020-10-14 23:52:35,650 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-14 23:52:35,651 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__return_334~0 |old(~__return_334~0)|) (= ~__return_main~0 |old(~__return_main~0)|)) [2020-10-14 23:52:35,651 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-14 23:52:35,651 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-14 23:52:35,652 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-14 23:52:35,652 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-14 23:52:35,652 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-14 23:52:35,652 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-10-14 23:52:35,652 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-10-14 23:52:35,652 INFO L268 CegarLoopResult]: For program point L5-2(lines 4 6) no Hoare annotation was computed. [2020-10-14 23:52:35,652 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-10-14 23:52:35,653 INFO L268 CegarLoopResult]: For program point L225(lines 225 267) no Hoare annotation was computed. [2020-10-14 23:52:35,653 INFO L268 CegarLoopResult]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 86) no Hoare annotation was computed. [2020-10-14 23:52:35,653 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 311) no Hoare annotation was computed. [2020-10-14 23:52:35,653 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-10-14 23:52:35,653 INFO L268 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-10-14 23:52:35,653 INFO L268 CegarLoopResult]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 203) no Hoare annotation was computed. [2020-10-14 23:52:35,653 INFO L268 CegarLoopResult]: For program point L201(lines 201 271) no Hoare annotation was computed. [2020-10-14 23:52:35,654 INFO L268 CegarLoopResult]: For program point L36(lines 36 292) no Hoare annotation was computed. [2020-10-14 23:52:35,654 INFO L268 CegarLoopResult]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 139) no Hoare annotation was computed. [2020-10-14 23:52:35,654 INFO L268 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-10-14 23:52:35,654 INFO L268 CegarLoopResult]: For program point L243(line 243) no Hoare annotation was computed. [2020-10-14 23:52:35,654 INFO L268 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-14 23:52:35,654 INFO L268 CegarLoopResult]: For program point mainErr14ASSERT_VIOLATIONERROR_FUNCTION(line 243) no Hoare annotation was computed. [2020-10-14 23:52:35,654 INFO L268 CegarLoopResult]: For program point L227(line 227) no Hoare annotation was computed. [2020-10-14 23:52:35,654 INFO L268 CegarLoopResult]: For program point L161(lines 161 277) no Hoare annotation was computed. [2020-10-14 23:52:35,655 INFO L268 CegarLoopResult]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 110) no Hoare annotation was computed. [2020-10-14 23:52:35,655 INFO L264 CegarLoopResult]: At program point L302(lines 23 310) the Hoare annotation is: (and (<= 0 main_~main__i~0) (= |old(~__return_334~0)| ~__return_334~0) (<= (+ main_~main__limit~0 4) main_~main__bufsize~0)) [2020-10-14 23:52:35,655 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 11 311) no Hoare annotation was computed. [2020-10-14 23:52:35,655 INFO L268 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-10-14 23:52:35,655 INFO L268 CegarLoopResult]: For program point mainErr13ASSERT_VIOLATIONERROR_FUNCTION(line 227) no Hoare annotation was computed. [2020-10-14 23:52:35,655 INFO L268 CegarLoopResult]: For program point L137(lines 137 281) no Hoare annotation was computed. [2020-10-14 23:52:35,655 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 45) no Hoare annotation was computed. [2020-10-14 23:52:35,655 INFO L268 CegarLoopResult]: For program point L96(lines 96 123) no Hoare annotation was computed. [2020-10-14 23:52:35,656 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 11 311) the Hoare annotation is: (= |old(~__return_334~0)| ~__return_334~0) [2020-10-14 23:52:35,656 INFO L268 CegarLoopResult]: For program point L253(lines 253 263) no Hoare annotation was computed. [2020-10-14 23:52:35,656 INFO L268 CegarLoopResult]: For program point L55(lines 55 284) no Hoare annotation was computed. [2020-10-14 23:52:35,656 INFO L268 CegarLoopResult]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 163) no Hoare annotation was computed. [2020-10-14 23:52:35,656 INFO L268 CegarLoopResult]: For program point L72(lines 72 127) no Hoare annotation was computed. [2020-10-14 23:52:35,656 INFO L264 CegarLoopResult]: At program point L262(lines 29 304) the Hoare annotation is: (let ((.cse4 (<= (+ main_~main__j~0 4) main_~main__bufsize~0)) (.cse0 (= |old(~__return_334~0)| ~__return_334~0))) (let ((.cse2 (<= 1 main_~main__j~0)) (.cse3 (let ((.cse5 (<= 1 main_~main__i~0))) (or (and .cse5 .cse0 (<= 1 main_~__VERIFIER_assert__cond~12)) (and .cse4 .cse5 .cse0)))) (.cse1 (<= (+ main_~main__limit~0 4) main_~main__bufsize~0))) (or (and (<= 0 main_~main__i~0) (<= 0 main_~main__j~0) (< main_~main__i~0 main_~main__len~0) .cse0 .cse1) (and .cse2 .cse3 (not (= main_~__VERIFIER_assert__cond~14 0)) .cse1) (and .cse2 .cse3 .cse4 .cse1)))) [2020-10-14 23:52:35,657 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-10-14 23:52:35,657 INFO L268 CegarLoopResult]: For program point L64(lines 64 283) no Hoare annotation was computed. [2020-10-14 23:52:35,657 INFO L268 CegarLoopResult]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 151) no Hoare annotation was computed. [2020-10-14 23:52:35,657 INFO L268 CegarLoopResult]: For program point L213(lines 213 269) no Hoare annotation was computed. [2020-10-14 23:52:35,657 INFO L268 CegarLoopResult]: For program point mainErr15ASSERT_VIOLATIONERROR_FUNCTION(line 255) no Hoare annotation was computed. [2020-10-14 23:52:35,657 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-10-14 23:52:35,657 INFO L268 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-10-14 23:52:35,658 INFO L268 CegarLoopResult]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 74) no Hoare annotation was computed. [2020-10-14 23:52:35,658 INFO L268 CegarLoopResult]: For program point L255(line 255) no Hoare annotation was computed. [2020-10-14 23:52:35,658 INFO L268 CegarLoopResult]: For program point L189(lines 189 273) no Hoare annotation was computed. [2020-10-14 23:52:35,658 INFO L268 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-14 23:52:35,658 INFO L268 CegarLoopResult]: For program point L173(lines 173 275) no Hoare annotation was computed. [2020-10-14 23:52:35,658 INFO L268 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-10-14 23:52:35,658 INFO L268 CegarLoopResult]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 191) no Hoare annotation was computed. [2020-10-14 23:52:35,658 INFO L268 CegarLoopResult]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 57) no Hoare annotation was computed. [2020-10-14 23:52:35,658 INFO L268 CegarLoopResult]: For program point L215(line 215) no Hoare annotation was computed. [2020-10-14 23:52:35,659 INFO L268 CegarLoopResult]: For program point L149(lines 149 279) no Hoare annotation was computed. [2020-10-14 23:52:35,659 INFO L268 CegarLoopResult]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 175) no Hoare annotation was computed. [2020-10-14 23:52:35,659 INFO L268 CegarLoopResult]: For program point L108(lines 108 121) no Hoare annotation was computed. [2020-10-14 23:52:35,659 INFO L268 CegarLoopResult]: For program point L34(lines 34 298) no Hoare annotation was computed. [2020-10-14 23:52:35,659 INFO L268 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-10-14 23:52:35,659 INFO L268 CegarLoopResult]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 98) no Hoare annotation was computed. [2020-10-14 23:52:35,659 INFO L268 CegarLoopResult]: For program point L84(lines 84 125) no Hoare annotation was computed. [2020-10-14 23:52:35,659 INFO L268 CegarLoopResult]: For program point L18(lines 18 310) no Hoare annotation was computed. [2020-10-14 23:52:35,659 INFO L268 CegarLoopResult]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 215) no Hoare annotation was computed. [2020-10-14 23:52:35,660 INFO L268 CegarLoopResult]: For program point L241(lines 241 265) no Hoare annotation was computed. [2020-10-14 23:52:35,660 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-10-14 23:52:35,660 INFO L268 CegarLoopResult]: For program point L43(lines 43 286) no Hoare annotation was computed. [2020-10-14 23:52:35,660 INFO L264 CegarLoopResult]: At program point L291(lines 36 292) the Hoare annotation is: (and (<= 0 main_~main__i~0) (< main_~main__i~0 main_~main__len~0) (<= 0 main_~main__j~0) (<= (+ main_~main__j~0 5) main_~main__bufsize~0) (= |old(~__return_334~0)| ~__return_334~0) (<= (+ main_~main__limit~0 4) main_~main__bufsize~0)) [2020-10-14 23:52:35,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:52:35 BoogieIcfgContainer [2020-10-14 23:52:35,685 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 23:52:35,687 INFO L168 Benchmark]: Toolchain (without parser) took 8711.99 ms. Allocated memory was 147.8 MB in the beginning and 297.8 MB in the end (delta: 149.9 MB). Free memory was 103.1 MB in the beginning and 125.1 MB in the end (delta: -22.0 MB). Peak memory consumption was 151.2 MB. Max. memory is 7.1 GB. [2020-10-14 23:52:35,687 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 147.8 MB. Free memory was 121.1 MB in the beginning and 120.7 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-14 23:52:35,688 INFO L168 Benchmark]: CACSL2BoogieTranslator took 331.17 ms. Allocated memory is still 147.8 MB. Free memory was 103.1 MB in the beginning and 90.9 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2020-10-14 23:52:35,689 INFO L168 Benchmark]: Boogie Preprocessor took 133.16 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 90.9 MB in the beginning and 182.3 MB in the end (delta: -91.4 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-10-14 23:52:35,689 INFO L168 Benchmark]: RCFGBuilder took 424.60 ms. Allocated memory is still 205.0 MB. Free memory was 182.3 MB in the beginning and 160.1 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-10-14 23:52:35,690 INFO L168 Benchmark]: TraceAbstraction took 7817.25 ms. Allocated memory was 205.0 MB in the beginning and 297.8 MB in the end (delta: 92.8 MB). Free memory was 159.2 MB in the beginning and 125.1 MB in the end (delta: 34.0 MB). Peak memory consumption was 150.2 MB. Max. memory is 7.1 GB. [2020-10-14 23:52:35,693 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 147.8 MB. Free memory was 121.1 MB in the beginning and 120.7 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 331.17 ms. Allocated memory is still 147.8 MB. Free memory was 103.1 MB in the beginning and 90.9 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 133.16 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 90.9 MB in the beginning and 182.3 MB in the end (delta: -91.4 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 424.60 ms. Allocated memory is still 205.0 MB. Free memory was 182.3 MB in the beginning and 160.1 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7817.25 ms. Allocated memory was 205.0 MB in the beginning and 297.8 MB in the end (delta: 92.8 MB). Free memory was 159.2 MB in the beginning and 125.1 MB in the end (delta: 34.0 MB). Peak memory consumption was 150.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 45]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 255]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 151]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 163]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 227]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 175]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 191]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 243]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 215]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 98]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 203]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 74]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 139]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 110]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 86]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 57]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: (((((0 <= main__i && 0 <= main__j) && main__i < main__len) && \old(__return_334) == __return_334) && main__limit + 4 <= main__bufsize) || (((1 <= main__j && (((1 <= main__i && \old(__return_334) == __return_334) && 1 <= __VERIFIER_assert__cond) || ((main__j + 4 <= main__bufsize && 1 <= main__i) && \old(__return_334) == __return_334))) && !(__VERIFIER_assert__cond == 0)) && main__limit + 4 <= main__bufsize)) || (((1 <= main__j && (((1 <= main__i && \old(__return_334) == __return_334) && 1 <= __VERIFIER_assert__cond) || ((main__j + 4 <= main__bufsize && 1 <= main__i) && \old(__return_334) == __return_334))) && main__j + 4 <= main__bufsize) && main__limit + 4 <= main__bufsize) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: ((((0 <= main__i && main__i < main__len) && 0 <= main__j) && main__j + 5 <= main__bufsize) && \old(__return_334) == __return_334) && main__limit + 4 <= main__bufsize - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (0 <= main__i && \old(__return_334) == __return_334) && main__limit + 4 <= main__bufsize - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 69 locations, 16 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.0s, OverallIterations: 16, TraceHistogramMax: 1, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 933 SDtfs, 1868 SDslu, 222 SDs, 0 SdLazy, 1382 SolverSat, 161 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 162 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 424 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 26 NumberOfFragments, 139 HoareAnnotationTreeSize, 7 FomulaSimplifications, 580400887 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 28812 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 294 NumberOfCodeBlocks, 294 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 278 ConstructedInterpolants, 0 QuantifiedInterpolants, 14573 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 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...