/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_1a.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:13:11,638 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:13:11,642 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:13:11,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:13:11,668 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:13:11,669 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:13:11,671 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:13:11,673 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:13:11,674 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:13:11,676 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:13:11,677 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:13:11,678 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:13:11,678 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:13:11,680 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:13:11,681 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:13:11,682 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:13:11,683 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:13:11,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:13:11,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:13:11,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:13:11,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:13:11,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:13:11,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:13:11,694 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:13:11,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:13:11,697 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:13:11,697 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:13:11,698 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:13:11,699 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:13:11,700 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:13:11,700 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:13:11,701 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:13:11,702 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:13:11,703 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:13:11,704 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:13:11,704 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:13:11,705 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:13:11,705 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:13:11,705 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:13:11,707 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:13:11,708 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:13:11,708 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 03:13:11,735 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:13:11,735 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:13:11,737 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:13:11,737 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:13:11,737 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:13:11,737 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:13:11,737 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:13:11,738 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:13:11,738 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:13:11,738 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:13:11,738 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:13:11,738 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:13:11,739 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:13:11,739 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:13:11,739 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:13:11,739 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:13:11,739 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:13:11,740 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:13:11,740 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:13:11,740 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:13:11,740 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:13:11,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:13:11,741 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:13:11,741 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:13:11,741 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:13:11,741 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:13:11,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:13:11,742 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:13:11,742 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:13:11,742 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; [2020-09-25 03:13:12,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:13:12,257 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:13:12,262 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:13:12,265 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:13:12,267 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:13:12,268 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_1a.cil.c [2020-09-25 03:13:12,365 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/05c6ddfb9/9a2d9f193c58417d9a1c3eaa8bbefe22/FLAG50c8ab2df [2020-09-25 03:13:12,933 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:13:12,934 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_srvr_1a.cil.c [2020-09-25 03:13:12,943 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/05c6ddfb9/9a2d9f193c58417d9a1c3eaa8bbefe22/FLAG50c8ab2df [2020-09-25 03:13:13,266 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/05c6ddfb9/9a2d9f193c58417d9a1c3eaa8bbefe22 [2020-09-25 03:13:13,279 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:13:13,285 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:13:13,287 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:13:13,287 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:13:13,291 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:13:13,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:13:13" (1/1) ... [2020-09-25 03:13:13,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25814f5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:13, skipping insertion in model container [2020-09-25 03:13:13,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:13:13" (1/1) ... [2020-09-25 03:13:13,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:13:13,341 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:13:13,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:13:13,596 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:13:13,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:13:13,674 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:13:13,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:13 WrapperNode [2020-09-25 03:13:13,675 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:13:13,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:13:13,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:13:13,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:13:13,778 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:13" (1/1) ... [2020-09-25 03:13:13,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:13" (1/1) ... [2020-09-25 03:13:13,787 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:13" (1/1) ... [2020-09-25 03:13:13,787 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:13" (1/1) ... [2020-09-25 03:13:13,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:13" (1/1) ... [2020-09-25 03:13:13,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:13" (1/1) ... [2020-09-25 03:13:13,803 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:13" (1/1) ... [2020-09-25 03:13:13,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:13:13,807 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:13:13,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:13:13,807 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:13:13,808 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:13" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:13:13,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:13:13,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:13:13,890 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:13:13,890 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:13:13,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 03:13:13,892 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 03:13:13,892 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 03:13:13,893 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:13:13,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:13:13,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:13:14,275 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:13:14,276 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 03:13:14,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:13:14 BoogieIcfgContainer [2020-09-25 03:13:14,282 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:13:14,284 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:13:14,284 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:13:14,288 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:13:14,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:13:13" (1/3) ... [2020-09-25 03:13:14,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5db66ae7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:13:14, skipping insertion in model container [2020-09-25 03:13:14,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:13" (2/3) ... [2020-09-25 03:13:14,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5db66ae7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:13:14, skipping insertion in model container [2020-09-25 03:13:14,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:13:14" (3/3) ... [2020-09-25 03:13:14,292 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_1a.cil.c [2020-09-25 03:13:14,306 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:13:14,316 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:13:14,341 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:13:14,376 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:13:14,376 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:13:14,377 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:13:14,377 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:13:14,377 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:13:14,377 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:13:14,377 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:13:14,377 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:13:14,401 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2020-09-25 03:13:14,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-25 03:13:14,408 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:14,409 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:14,410 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:14,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:14,416 INFO L82 PathProgramCache]: Analyzing trace with hash 766781838, now seen corresponding path program 1 times [2020-09-25 03:13:14,425 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:14,426 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1511069851] [2020-09-25 03:13:14,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:14,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:14,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:14,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:14,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:13:14,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:14,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 03:13:14,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:14,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:14,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 03:13:14,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 03:13:14,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 03:13:14,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:14,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:14,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:14,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:14,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:14,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:14,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:13:14,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:14,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:14,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:14,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:14,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:13:14,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:13:14,715 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1511069851] [2020-09-25 03:13:14,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:14,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:14,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131148766] [2020-09-25 03:13:14,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:14,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:14,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:14,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:14,753 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 3 states. [2020-09-25 03:13:14,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:14,913 INFO L93 Difference]: Finished difference Result 198 states and 286 transitions. [2020-09-25 03:13:14,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:14,915 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-09-25 03:13:14,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:14,933 INFO L225 Difference]: With dead ends: 198 [2020-09-25 03:13:14,933 INFO L226 Difference]: Without dead ends: 128 [2020-09-25 03:13:14,938 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:14,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-09-25 03:13:15,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-09-25 03:13:15,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-09-25 03:13:15,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 171 transitions. [2020-09-25 03:13:15,014 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 171 transitions. Word has length 26 [2020-09-25 03:13:15,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:15,015 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 171 transitions. [2020-09-25 03:13:15,015 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:15,015 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 171 transitions. [2020-09-25 03:13:15,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-25 03:13:15,017 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:15,017 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:15,018 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:13:15,018 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:15,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:15,019 INFO L82 PathProgramCache]: Analyzing trace with hash -184994456, now seen corresponding path program 1 times [2020-09-25 03:13:15,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:15,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2055225362] [2020-09-25 03:13:15,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:15,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:15,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:15,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:15,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 03:13:15,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:15,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 03:13:15,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:15,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:15,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 03:13:15,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:13:15,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:15,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:15,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:15,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:15,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:15,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:15,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:15,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:13:15,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:15,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:15,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:15,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:15,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:13:15,211 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:13:15,212 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2055225362] [2020-09-25 03:13:15,212 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:15,212 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:15,213 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741394804] [2020-09-25 03:13:15,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:15,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:15,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:15,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:15,216 INFO L87 Difference]: Start difference. First operand 128 states and 171 transitions. Second operand 3 states. [2020-09-25 03:13:15,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:15,310 INFO L93 Difference]: Finished difference Result 233 states and 325 transitions. [2020-09-25 03:13:15,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:15,311 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2020-09-25 03:13:15,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:15,314 INFO L225 Difference]: With dead ends: 233 [2020-09-25 03:13:15,314 INFO L226 Difference]: Without dead ends: 177 [2020-09-25 03:13:15,316 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:15,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-09-25 03:13:15,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2020-09-25 03:13:15,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-09-25 03:13:15,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 240 transitions. [2020-09-25 03:13:15,340 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 240 transitions. Word has length 32 [2020-09-25 03:13:15,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:15,340 INFO L479 AbstractCegarLoop]: Abstraction has 177 states and 240 transitions. [2020-09-25 03:13:15,341 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:15,341 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 240 transitions. [2020-09-25 03:13:15,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-25 03:13:15,343 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:15,343 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:15,343 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:13:15,344 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:15,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:15,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1532764802, now seen corresponding path program 1 times [2020-09-25 03:13:15,345 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:15,345 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [413450147] [2020-09-25 03:13:15,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:15,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:15,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:15,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:15,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:15,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 03:13:15,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:13:15,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-25 03:13:15,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:15,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:15,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-25 03:13:15,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 03:13:15,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:13:15,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:15,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:15,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:15,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:15,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:15,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:15,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:13:15,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:15,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:15,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:15,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:15,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:13:15,516 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 03:13:15,517 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [413450147] [2020-09-25 03:13:15,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:15,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:15,518 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469396494] [2020-09-25 03:13:15,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:15,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:15,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:15,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:15,520 INFO L87 Difference]: Start difference. First operand 177 states and 240 transitions. Second operand 3 states. [2020-09-25 03:13:15,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:15,617 INFO L93 Difference]: Finished difference Result 331 states and 463 transitions. [2020-09-25 03:13:15,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:15,617 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2020-09-25 03:13:15,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:15,620 INFO L225 Difference]: With dead ends: 331 [2020-09-25 03:13:15,620 INFO L226 Difference]: Without dead ends: 226 [2020-09-25 03:13:15,622 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:15,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-09-25 03:13:15,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-09-25 03:13:15,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-09-25 03:13:15,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 310 transitions. [2020-09-25 03:13:15,646 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 310 transitions. Word has length 40 [2020-09-25 03:13:15,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:15,647 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 310 transitions. [2020-09-25 03:13:15,647 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:15,647 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 310 transitions. [2020-09-25 03:13:15,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-25 03:13:15,650 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:15,650 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:15,651 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:13:15,651 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:15,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:15,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1263446161, now seen corresponding path program 1 times [2020-09-25 03:13:15,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:15,652 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1794182751] [2020-09-25 03:13:15,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:15,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:15,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:15,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:15,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-25 03:13:15,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:15,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 03:13:15,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:15,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:15,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-09-25 03:13:15,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 03:13:15,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:15,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:15,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:15,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:15,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:15,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:15,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:15,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:13:15,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:15,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:15,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:15,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:15,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:15,803 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-25 03:13:15,804 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1794182751] [2020-09-25 03:13:15,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:15,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:15,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968687581] [2020-09-25 03:13:15,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:15,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:15,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:15,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:15,807 INFO L87 Difference]: Start difference. First operand 226 states and 310 transitions. Second operand 3 states. [2020-09-25 03:13:15,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:15,927 INFO L93 Difference]: Finished difference Result 487 states and 699 transitions. [2020-09-25 03:13:15,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:15,928 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2020-09-25 03:13:15,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:15,930 INFO L225 Difference]: With dead ends: 487 [2020-09-25 03:13:15,930 INFO L226 Difference]: Without dead ends: 284 [2020-09-25 03:13:15,932 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:15,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-09-25 03:13:15,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 278. [2020-09-25 03:13:15,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-09-25 03:13:15,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 362 transitions. [2020-09-25 03:13:15,954 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 362 transitions. Word has length 56 [2020-09-25 03:13:15,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:15,954 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 362 transitions. [2020-09-25 03:13:15,955 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:15,955 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 362 transitions. [2020-09-25 03:13:15,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 03:13:15,958 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:15,959 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:15,959 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 03:13:15,959 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:15,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:15,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1348776400, now seen corresponding path program 1 times [2020-09-25 03:13:15,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:15,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [60291850] [2020-09-25 03:13:15,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:15,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:15,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:16,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:16,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-25 03:13:16,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:16,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 03:13:16,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:16,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:16,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-25 03:13:16,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:13:16,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:16,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:16,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:16,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:16,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:16,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:16,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:16,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:13:16,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:16,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:16,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:16,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:16,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:16,080 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-25 03:13:16,080 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [60291850] [2020-09-25 03:13:16,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:16,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:16,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722686851] [2020-09-25 03:13:16,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:16,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:16,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:16,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:16,082 INFO L87 Difference]: Start difference. First operand 278 states and 362 transitions. Second operand 3 states. [2020-09-25 03:13:16,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:16,150 INFO L93 Difference]: Finished difference Result 535 states and 708 transitions. [2020-09-25 03:13:16,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:16,151 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-09-25 03:13:16,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:16,154 INFO L225 Difference]: With dead ends: 535 [2020-09-25 03:13:16,154 INFO L226 Difference]: Without dead ends: 342 [2020-09-25 03:13:16,155 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:16,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-09-25 03:13:16,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 340. [2020-09-25 03:13:16,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2020-09-25 03:13:16,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 447 transitions. [2020-09-25 03:13:16,174 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 447 transitions. Word has length 70 [2020-09-25 03:13:16,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:16,175 INFO L479 AbstractCegarLoop]: Abstraction has 340 states and 447 transitions. [2020-09-25 03:13:16,175 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:16,175 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 447 transitions. [2020-09-25 03:13:16,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-25 03:13:16,179 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:16,179 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:16,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 03:13:16,180 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:16,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:16,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1264034378, now seen corresponding path program 1 times [2020-09-25 03:13:16,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:16,181 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1776761460] [2020-09-25 03:13:16,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:16,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:16,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:16,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:16,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 03:13:16,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:16,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-25 03:13:16,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:16,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:16,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 03:13:16,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 03:13:16,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:16,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:16,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:16,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:16,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:16,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:16,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:16,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:13:16,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:16,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:16,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:16,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:16,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:16,305 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-09-25 03:13:16,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1776761460] [2020-09-25 03:13:16,306 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:16,306 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:16,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878514862] [2020-09-25 03:13:16,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:16,307 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:16,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:16,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:16,308 INFO L87 Difference]: Start difference. First operand 340 states and 447 transitions. Second operand 3 states. [2020-09-25 03:13:16,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:16,442 INFO L93 Difference]: Finished difference Result 647 states and 876 transitions. [2020-09-25 03:13:16,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:16,443 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-09-25 03:13:16,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:16,445 INFO L225 Difference]: With dead ends: 647 [2020-09-25 03:13:16,446 INFO L226 Difference]: Without dead ends: 246 [2020-09-25 03:13:16,447 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:16,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-09-25 03:13:16,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 243. [2020-09-25 03:13:16,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-09-25 03:13:16,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 302 transitions. [2020-09-25 03:13:16,459 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 302 transitions. Word has length 74 [2020-09-25 03:13:16,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:16,460 INFO L479 AbstractCegarLoop]: Abstraction has 243 states and 302 transitions. [2020-09-25 03:13:16,460 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:16,461 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 302 transitions. [2020-09-25 03:13:16,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-09-25 03:13:16,464 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:16,465 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:16,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 03:13:16,465 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:16,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:16,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1725408203, now seen corresponding path program 1 times [2020-09-25 03:13:16,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:16,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1167742057] [2020-09-25 03:13:16,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:16,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:16,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:16,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:16,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:16,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:16,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:16,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:16,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:16,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 03:13:16,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 03:13:16,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 421 [2020-09-25 03:13:16,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:16,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:13:16,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-25 03:13:16,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 03:13:16,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:16,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:16,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:16,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:16,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:16,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:16,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:16,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:13:16,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:16,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:16,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:16,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:16,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:16,977 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-09-25 03:13:16,977 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1167742057] [2020-09-25 03:13:16,977 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:13:16,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 03:13:16,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492501206] [2020-09-25 03:13:16,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 03:13:16,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:16,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 03:13:16,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:16,980 INFO L87 Difference]: Start difference. First operand 243 states and 302 transitions. Second operand 3 states. [2020-09-25 03:13:16,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:16,996 INFO L93 Difference]: Finished difference Result 370 states and 439 transitions. [2020-09-25 03:13:16,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 03:13:16,997 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 104 [2020-09-25 03:13:16,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:16,998 INFO L225 Difference]: With dead ends: 370 [2020-09-25 03:13:16,998 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 03:13:17,000 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 03:13:17,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 03:13:17,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 03:13:17,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 03:13:17,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 03:13:17,001 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 104 [2020-09-25 03:13:17,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:17,002 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 03:13:17,002 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 03:13:17,002 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 03:13:17,002 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 03:13:17,003 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 03:13:17,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 03:13:17,303 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 03:13:17,303 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 03:13:17,303 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 03:13:17,304 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 03:13:17,304 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 03:13:17,304 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 03:13:17,304 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 8 217) no Hoare annotation was computed. [2020-09-25 03:13:17,305 INFO L268 CegarLoopResult]: For program point L151-1(lines 74 183) no Hoare annotation was computed. [2020-09-25 03:13:17,305 INFO L268 CegarLoopResult]: For program point L52(lines 52 193) no Hoare annotation was computed. [2020-09-25 03:13:17,305 INFO L268 CegarLoopResult]: For program point L85-1(lines 74 183) no Hoare annotation was computed. [2020-09-25 03:13:17,305 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 03:13:17,305 INFO L268 CegarLoopResult]: For program point L135(lines 135 139) no Hoare annotation was computed. [2020-09-25 03:13:17,306 INFO L264 CegarLoopResult]: At program point L69(lines 68 185) the Hoare annotation is: (let ((.cse0 (<= 8640 main_~s__state~0))) (or (and .cse0 (<= main_~blastFlag~0 2)) (and .cse0 (<= main_~blastFlag~0 3) (not (= main_~s__hit~0 0))))) [2020-09-25 03:13:17,306 INFO L268 CegarLoopResult]: For program point L36(lines 36 201) no Hoare annotation was computed. [2020-09-25 03:13:17,306 INFO L268 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-09-25 03:13:17,307 INFO L268 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-09-25 03:13:17,307 INFO L264 CegarLoopResult]: At program point L53(lines 52 193) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-25 03:13:17,307 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-25 03:13:17,307 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-09-25 03:13:17,307 INFO L268 CegarLoopResult]: For program point L169-1(lines 74 183) no Hoare annotation was computed. [2020-09-25 03:13:17,308 INFO L264 CegarLoopResult]: At program point L37(lines 36 201) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-25 03:13:17,308 INFO L264 CegarLoopResult]: At program point L120(lines 113 122) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-25 03:13:17,308 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 8 217) no Hoare annotation was computed. [2020-09-25 03:13:17,308 INFO L268 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-09-25 03:13:17,308 INFO L268 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-09-25 03:13:17,309 INFO L268 CegarLoopResult]: For program point L105(lines 105 123) no Hoare annotation was computed. [2020-09-25 03:13:17,309 INFO L268 CegarLoopResult]: For program point L72(lines 72 183) no Hoare annotation was computed. [2020-09-25 03:13:17,309 INFO L268 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-09-25 03:13:17,309 INFO L268 CegarLoopResult]: For program point L56(lines 56 191) no Hoare annotation was computed. [2020-09-25 03:13:17,309 INFO L268 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2020-09-25 03:13:17,310 INFO L268 CegarLoopResult]: For program point L172(lines 172 174) no Hoare annotation was computed. [2020-09-25 03:13:17,310 INFO L268 CegarLoopResult]: For program point L106(lines 106 110) no Hoare annotation was computed. [2020-09-25 03:13:17,310 INFO L264 CegarLoopResult]: At program point L73(lines 72 183) the Hoare annotation is: (and (<= main_~blastFlag~0 3) (<= 8672 main_~s__state~0)) [2020-09-25 03:13:17,310 INFO L268 CegarLoopResult]: For program point L40(lines 40 199) no Hoare annotation was computed. [2020-09-25 03:13:17,311 INFO L264 CegarLoopResult]: At program point L57(lines 56 191) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-25 03:13:17,311 INFO L264 CegarLoopResult]: At program point L173(lines 8 217) the Hoare annotation is: false [2020-09-25 03:13:17,311 INFO L268 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-09-25 03:13:17,311 INFO L264 CegarLoopResult]: At program point L41(lines 40 199) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-25 03:13:17,312 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-09-25 03:13:17,312 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-09-25 03:13:17,312 INFO L268 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-09-25 03:13:17,312 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-25 03:13:17,312 INFO L268 CegarLoopResult]: For program point L10-1(line 10) no Hoare annotation was computed. [2020-09-25 03:13:17,312 INFO L268 CegarLoopResult]: For program point L10-2(line 10) no Hoare annotation was computed. [2020-09-25 03:13:17,312 INFO L268 CegarLoopResult]: For program point L60(lines 60 189) no Hoare annotation was computed. [2020-09-25 03:13:17,313 INFO L264 CegarLoopResult]: At program point L176(lines 22 211) the Hoare annotation is: (let ((.cse0 (<= main_~blastFlag~0 3))) (or (and .cse0 (<= 8672 main_~s__state~0)) (and (<= 8640 main_~s__state~0) .cse0 (not (= main_~s__hit~0 0))) (<= main_~blastFlag~0 2))) [2020-09-25 03:13:17,313 INFO L268 CegarLoopResult]: For program point L44(lines 44 197) no Hoare annotation was computed. [2020-09-25 03:13:17,313 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-09-25 03:13:17,313 INFO L268 CegarLoopResult]: For program point L11-1(line 11) no Hoare annotation was computed. [2020-09-25 03:13:17,314 INFO L268 CegarLoopResult]: For program point L11-2(line 11) no Hoare annotation was computed. [2020-09-25 03:13:17,314 INFO L264 CegarLoopResult]: At program point L61(lines 60 189) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-25 03:13:17,314 INFO L268 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-09-25 03:13:17,314 INFO L264 CegarLoopResult]: At program point L45(lines 44 197) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-25 03:13:17,315 INFO L268 CegarLoopResult]: For program point L78-1(lines 78 80) no Hoare annotation was computed. [2020-09-25 03:13:17,315 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 03:13:17,315 INFO L268 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-09-25 03:13:17,315 INFO L268 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-09-25 03:13:17,315 INFO L268 CegarLoopResult]: For program point L29(lines 29 204) no Hoare annotation was computed. [2020-09-25 03:13:17,316 INFO L264 CegarLoopResult]: At program point L112(lines 105 123) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-25 03:13:17,316 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-09-25 03:13:17,316 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-25 03:13:17,316 INFO L268 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-09-25 03:13:17,316 INFO L268 CegarLoopResult]: For program point L13-2(line 13) no Hoare annotation was computed. [2020-09-25 03:13:17,316 INFO L268 CegarLoopResult]: For program point L162-1(lines 162 164) no Hoare annotation was computed. [2020-09-25 03:13:17,317 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 215) no Hoare annotation was computed. [2020-09-25 03:13:17,317 INFO L264 CegarLoopResult]: At program point L30(lines 29 204) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-25 03:13:17,317 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 8 217) the Hoare annotation is: true [2020-09-25 03:13:17,317 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-25 03:13:17,318 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-09-25 03:13:17,318 INFO L268 CegarLoopResult]: For program point L64(lines 64 187) no Hoare annotation was computed. [2020-09-25 03:13:17,318 INFO L271 CegarLoopResult]: At program point L213(lines 8 217) the Hoare annotation is: true [2020-09-25 03:13:17,318 INFO L268 CegarLoopResult]: For program point L114(lines 114 118) no Hoare annotation was computed. [2020-09-25 03:13:17,318 INFO L268 CegarLoopResult]: For program point L48(lines 48 195) no Hoare annotation was computed. [2020-09-25 03:13:17,318 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 03:13:17,318 INFO L264 CegarLoopResult]: At program point L65(lines 64 187) the Hoare annotation is: (let ((.cse0 (<= 8640 main_~s__state~0))) (or (and .cse0 (<= main_~blastFlag~0 2)) (and .cse0 (<= main_~blastFlag~0 3) (not (= main_~s__hit~0 0))))) [2020-09-25 03:13:17,319 INFO L268 CegarLoopResult]: For program point L32(lines 32 203) no Hoare annotation was computed. [2020-09-25 03:13:17,319 INFO L264 CegarLoopResult]: At program point L49(lines 48 195) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-25 03:13:17,319 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 03:13:17,319 INFO L264 CegarLoopResult]: At program point L33(lines 32 203) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-09-25 03:13:17,319 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-25 03:13:17,319 INFO L268 CegarLoopResult]: For program point L216(line 216) no Hoare annotation was computed. [2020-09-25 03:13:17,320 INFO L268 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-09-25 03:13:17,320 INFO L268 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-09-25 03:13:17,320 INFO L268 CegarLoopResult]: For program point L134-1(line 134) no Hoare annotation was computed. [2020-09-25 03:13:17,320 INFO L268 CegarLoopResult]: For program point L68(lines 68 185) no Hoare annotation was computed. [2020-09-25 03:13:17,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 03:13:17 BoogieIcfgContainer [2020-09-25 03:13:17,350 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 03:13:17,354 INFO L168 Benchmark]: Toolchain (without parser) took 4071.57 ms. Allocated memory was 140.5 MB in the beginning and 250.6 MB in the end (delta: 110.1 MB). Free memory was 100.5 MB in the beginning and 122.4 MB in the end (delta: -21.9 MB). Peak memory consumption was 88.2 MB. Max. memory is 7.1 GB. [2020-09-25 03:13:17,355 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 140.5 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 03:13:17,356 INFO L168 Benchmark]: CACSL2BoogieTranslator took 388.74 ms. Allocated memory is still 140.5 MB. Free memory was 99.8 MB in the beginning and 88.7 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2020-09-25 03:13:17,358 INFO L168 Benchmark]: Boogie Preprocessor took 130.42 ms. Allocated memory was 140.5 MB in the beginning and 199.8 MB in the end (delta: 59.2 MB). Free memory was 88.7 MB in the beginning and 177.6 MB in the end (delta: -88.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-09-25 03:13:17,358 INFO L168 Benchmark]: RCFGBuilder took 476.18 ms. Allocated memory is still 199.8 MB. Free memory was 177.6 MB in the beginning and 155.3 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2020-09-25 03:13:17,359 INFO L168 Benchmark]: TraceAbstraction took 3066.62 ms. Allocated memory was 199.8 MB in the beginning and 250.6 MB in the end (delta: 50.9 MB). Free memory was 154.6 MB in the beginning and 122.4 MB in the end (delta: 32.2 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. [2020-09-25 03:13:17,364 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 140.5 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 388.74 ms. Allocated memory is still 140.5 MB. Free memory was 99.8 MB in the beginning and 88.7 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.42 ms. Allocated memory was 140.5 MB in the beginning and 199.8 MB in the end (delta: 59.2 MB). Free memory was 88.7 MB in the beginning and 177.6 MB in the end (delta: -88.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 476.18 ms. Allocated memory is still 199.8 MB. Free memory was 177.6 MB in the beginning and 155.3 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3066.62 ms. Allocated memory was 199.8 MB in the beginning and 250.6 MB in the end (delta: 50.9 MB). Free memory was 154.6 MB in the beginning and 122.4 MB in the end (delta: 32.2 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 215]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: (8640 <= s__state && blastFlag <= 2) || ((8640 <= s__state && blastFlag <= 3) && !(s__hit == 0)) - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: (8640 <= s__state && blastFlag <= 2) || ((8640 <= s__state && blastFlag <= 3) && !(s__hit == 0)) - InvariantResult [Line: 105]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((blastFlag <= 3 && 8672 <= s__state) || ((8640 <= s__state && blastFlag <= 3) && !(s__hit == 0))) || blastFlag <= 2 - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: blastFlag <= 3 && 8672 <= s__state - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: blastFlag <= 2 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 7, TraceHistogramMax: 6, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 693 SDtfs, 310 SDslu, 522 SDs, 0 SdLazy, 212 SolverSat, 58 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=340occurred in iteration=5, 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, 7 MinimizatonAttempts, 11 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 21 PreInvPairs, 86 NumberOfFragments, 106 HoareAnnotationTreeSize, 21 FomulaSimplifications, 585 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 21 FomulaSimplificationsInter, 60 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 402 NumberOfCodeBlocks, 402 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 395 ConstructedInterpolants, 0 QuantifiedInterpolants, 45737 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 202/202 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...