/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/psyco/psyco_io_1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 11:20:50,497 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 11:20:50,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 11:20:50,544 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 11:20:50,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 11:20:50,555 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 11:20:50,557 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 11:20:50,560 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 11:20:50,563 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 11:20:50,565 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 11:20:50,567 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 11:20:50,568 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 11:20:50,569 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 11:20:50,572 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 11:20:50,574 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 11:20:50,575 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 11:20:50,577 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 11:20:50,578 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 11:20:50,579 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 11:20:50,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 11:20:50,589 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 11:20:50,590 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 11:20:50,592 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 11:20:50,592 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 11:20:50,597 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 11:20:50,597 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 11:20:50,597 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 11:20:50,600 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 11:20:50,601 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 11:20:50,603 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 11:20:50,603 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 11:20:50,604 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 11:20:50,605 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 11:20:50,605 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 11:20:50,607 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 11:20:50,607 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 11:20:50,608 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 11:20:50,608 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 11:20:50,608 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 11:20:50,609 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 11:20:50,610 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 11:20:50,611 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 11:20:50,660 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 11:20:50,661 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 11:20:50,663 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 11:20:50,663 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 11:20:50,664 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 11:20:50,664 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 11:20:50,664 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 11:20:50,664 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 11:20:50,665 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 11:20:50,665 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 11:20:50,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 11:20:50,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 11:20:50,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 11:20:50,667 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 11:20:50,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 11:20:50,667 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 11:20:50,667 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 11:20:50,668 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 11:20:50,668 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 11:20:50,668 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 11:20:50,668 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 11:20:50,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:20:50,669 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 11:20:50,669 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 11:20:50,669 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 11:20:50,669 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 11:20:50,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 11:20:50,670 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 11:20:50,670 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 11:20:50,670 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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 11:20:51,108 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 11:20:51,126 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 11:20:51,130 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 11:20:51,132 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 11:20:51,133 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 11:20:51,134 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/psyco/psyco_io_1.c [2020-09-25 11:20:51,211 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7b579b3af/1f66d9edcf594c6db6a7c37421c99d04/FLAGc3e927688 [2020-09-25 11:20:51,779 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 11:20:51,783 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/psyco/psyco_io_1.c [2020-09-25 11:20:51,795 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7b579b3af/1f66d9edcf594c6db6a7c37421c99d04/FLAGc3e927688 [2020-09-25 11:20:52,099 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7b579b3af/1f66d9edcf594c6db6a7c37421c99d04 [2020-09-25 11:20:52,112 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 11:20:52,118 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 11:20:52,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 11:20:52,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 11:20:52,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 11:20:52,125 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:20:52" (1/1) ... [2020-09-25 11:20:52,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28f7f08b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:20:52, skipping insertion in model container [2020-09-25 11:20:52,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:20:52" (1/1) ... [2020-09-25 11:20:52,140 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 11:20:52,175 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 11:20:52,472 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:20:52,478 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 11:20:52,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:20:52,647 INFO L208 MainTranslator]: Completed translation [2020-09-25 11:20:52,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:20:52 WrapperNode [2020-09-25 11:20:52,648 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 11:20:52,649 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 11:20:52,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 11:20:52,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 11:20:52,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:20:52" (1/1) ... [2020-09-25 11:20:52,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:20:52" (1/1) ... [2020-09-25 11:20:52,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:20:52" (1/1) ... [2020-09-25 11:20:52,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:20:52" (1/1) ... [2020-09-25 11:20:52,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:20:52" (1/1) ... [2020-09-25 11:20:52,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:20:52" (1/1) ... [2020-09-25 11:20:52,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:20:52" (1/1) ... [2020-09-25 11:20:52,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 11:20:52,700 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 11:20:52,700 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 11:20:52,700 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 11:20:52,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:20:52" (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 11:20:52,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 11:20:52,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 11:20:52,778 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 11:20:52,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 11:20:52,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 11:20:52,778 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 11:20:52,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 11:20:52,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 11:20:53,394 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 11:20:53,394 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 11:20:53,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:20:53 BoogieIcfgContainer [2020-09-25 11:20:53,402 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 11:20:53,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 11:20:53,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 11:20:53,408 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 11:20:53,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:20:52" (1/3) ... [2020-09-25 11:20:53,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b9e1a62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:20:53, skipping insertion in model container [2020-09-25 11:20:53,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:20:52" (2/3) ... [2020-09-25 11:20:53,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b9e1a62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:20:53, skipping insertion in model container [2020-09-25 11:20:53,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:20:53" (3/3) ... [2020-09-25 11:20:53,413 INFO L109 eAbstractionObserver]: Analyzing ICFG psyco_io_1.c [2020-09-25 11:20:53,425 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 11:20:53,436 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 11:20:53,460 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 11:20:53,495 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 11:20:53,496 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 11:20:53,496 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 11:20:53,496 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 11:20:53,496 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 11:20:53,496 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 11:20:53,497 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 11:20:53,497 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 11:20:53,537 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states. [2020-09-25 11:20:53,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 11:20:53,551 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:20:53,552 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:20:53,552 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:20:53,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:20:53,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1735850516, now seen corresponding path program 1 times [2020-09-25 11:20:53,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:20:53,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [735503322] [2020-09-25 11:20:53,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:20:53,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:20:53,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:20:53,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:20:53,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-25 11:20:53,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:20:53,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 11:20:53,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:20:53,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:20:53,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:20:53,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-09-25 11:20:53,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:20:53,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 11:20:53,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:20:53,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:20:53,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:20:53,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:20:53,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 11:20:53,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:20:53,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 11:20:53,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:20:53,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:20:53,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:20:53,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:20:53,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:20:53,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:20:53,946 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 11:20:53,947 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [735503322] [2020-09-25 11:20:53,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:20:53,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 11:20:53,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752744684] [2020-09-25 11:20:53,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 11:20:53,957 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:20:53,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 11:20:53,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 11:20:53,984 INFO L87 Difference]: Start difference. First operand 201 states. Second operand 3 states. [2020-09-25 11:20:54,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:20:54,077 INFO L93 Difference]: Finished difference Result 368 states and 482 transitions. [2020-09-25 11:20:54,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 11:20:54,079 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2020-09-25 11:20:54,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:20:54,095 INFO L225 Difference]: With dead ends: 368 [2020-09-25 11:20:54,096 INFO L226 Difference]: Without dead ends: 163 [2020-09-25 11:20:54,102 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 11:20:54,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-09-25 11:20:54,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2020-09-25 11:20:54,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-09-25 11:20:54,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 193 transitions. [2020-09-25 11:20:54,171 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 193 transitions. Word has length 35 [2020-09-25 11:20:54,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:20:54,172 INFO L479 AbstractCegarLoop]: Abstraction has 163 states and 193 transitions. [2020-09-25 11:20:54,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 11:20:54,173 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 193 transitions. [2020-09-25 11:20:54,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-25 11:20:54,174 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:20:54,175 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:20:54,175 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 11:20:54,175 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:20:54,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:20:54,176 INFO L82 PathProgramCache]: Analyzing trace with hash -1081886035, now seen corresponding path program 1 times [2020-09-25 11:20:54,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:20:54,177 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1273319753] [2020-09-25 11:20:54,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:20:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:20:54,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:20:54,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:20:54,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:20:54,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:20:54,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 11:20:54,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 11:20:54,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-09-25 11:20:54,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:20:54,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:20:54,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:20:54,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 11:20:54,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 11:20:54,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 11:20:54,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:20:54,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:20:54,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:20:54,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:20:54,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 11:20:54,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:20:54,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 11:20:54,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:20:54,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:20:54,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:20:54,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:20:54,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:20:54,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:20:54,537 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 11:20:54,538 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1273319753] [2020-09-25 11:20:54,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:20:54,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 11:20:54,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407150751] [2020-09-25 11:20:54,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 11:20:54,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:20:54,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 11:20:54,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 11:20:54,542 INFO L87 Difference]: Start difference. First operand 163 states and 193 transitions. Second operand 4 states. [2020-09-25 11:20:54,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:20:54,922 INFO L93 Difference]: Finished difference Result 327 states and 388 transitions. [2020-09-25 11:20:54,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 11:20:54,922 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2020-09-25 11:20:54,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:20:54,925 INFO L225 Difference]: With dead ends: 327 [2020-09-25 11:20:54,925 INFO L226 Difference]: Without dead ends: 178 [2020-09-25 11:20:54,927 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 11:20:54,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-09-25 11:20:54,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2020-09-25 11:20:54,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-09-25 11:20:54,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 208 transitions. [2020-09-25 11:20:54,944 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 208 transitions. Word has length 36 [2020-09-25 11:20:54,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:20:54,945 INFO L479 AbstractCegarLoop]: Abstraction has 178 states and 208 transitions. [2020-09-25 11:20:54,945 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 11:20:54,945 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 208 transitions. [2020-09-25 11:20:54,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-25 11:20:54,947 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:20:54,947 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:20:54,948 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 11:20:54,948 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:20:54,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:20:54,948 INFO L82 PathProgramCache]: Analyzing trace with hash 989236732, now seen corresponding path program 1 times [2020-09-25 11:20:54,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:20:54,949 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [176434629] [2020-09-25 11:20:54,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:20:54,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:20:54,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:20:55,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:20:55,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:20:55,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 11:20:55,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:20:55,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-09-25 11:20:55,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:20:55,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:20:55,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:20:55,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-25 11:20:55,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 11:20:55,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:20:55,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:20:55,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:20:55,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:20:55,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:20:55,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 11:20:55,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:20:55,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 11:20:55,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:20:55,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:20:55,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:20:55,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:20:55,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:20:55,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:20:55,210 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:20:55,211 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [176434629] [2020-09-25 11:20:55,211 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:20:55,211 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 11:20:55,211 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253187126] [2020-09-25 11:20:55,213 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 11:20:55,213 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:20:55,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 11:20:55,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 11:20:55,214 INFO L87 Difference]: Start difference. First operand 178 states and 208 transitions. Second operand 4 states. [2020-09-25 11:20:55,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:20:55,342 INFO L93 Difference]: Finished difference Result 323 states and 379 transitions. [2020-09-25 11:20:55,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 11:20:55,344 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2020-09-25 11:20:55,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:20:55,348 INFO L225 Difference]: With dead ends: 323 [2020-09-25 11:20:55,348 INFO L226 Difference]: Without dead ends: 160 [2020-09-25 11:20:55,354 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 [2020-09-25 11:20:55,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-09-25 11:20:55,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2020-09-25 11:20:55,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-09-25 11:20:55,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 184 transitions. [2020-09-25 11:20:55,368 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 184 transitions. Word has length 58 [2020-09-25 11:20:55,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:20:55,368 INFO L479 AbstractCegarLoop]: Abstraction has 160 states and 184 transitions. [2020-09-25 11:20:55,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 11:20:55,369 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 184 transitions. [2020-09-25 11:20:55,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 11:20:55,372 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:20:55,372 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:20:55,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 11:20:55,372 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:20:55,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:20:55,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1364131535, now seen corresponding path program 1 times [2020-09-25 11:20:55,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:20:55,374 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1273620590] [2020-09-25 11:20:55,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:20:55,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:20:55,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:20:55,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:20:55,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 11:20:55,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:20:55,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-25 11:20:55,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:20:55,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:20:55,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:20:55,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-25 11:20:55,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 11:20:55,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:20:55,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:20:55,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:20:55,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:20:55,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:20:55,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 11:20:55,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:20:55,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 11:20:55,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:20:55,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:20:55,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:20:55,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:20:55,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:20:55,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:20:55,551 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:20:55,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1273620590] [2020-09-25 11:20:55,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:20:55,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 11:20:55,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112192261] [2020-09-25 11:20:55,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 11:20:55,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:20:55,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 11:20:55,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 11:20:55,554 INFO L87 Difference]: Start difference. First operand 160 states and 184 transitions. Second operand 4 states. [2020-09-25 11:20:55,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:20:55,851 INFO L93 Difference]: Finished difference Result 380 states and 450 transitions. [2020-09-25 11:20:55,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 11:20:55,851 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 71 [2020-09-25 11:20:55,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:20:55,854 INFO L225 Difference]: With dead ends: 380 [2020-09-25 11:20:55,854 INFO L226 Difference]: Without dead ends: 255 [2020-09-25 11:20:55,855 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 [2020-09-25 11:20:55,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-09-25 11:20:55,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 249. [2020-09-25 11:20:55,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-25 11:20:55,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 290 transitions. [2020-09-25 11:20:55,872 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 290 transitions. Word has length 71 [2020-09-25 11:20:55,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:20:55,872 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 290 transitions. [2020-09-25 11:20:55,872 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 11:20:55,873 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 290 transitions. [2020-09-25 11:20:55,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 11:20:55,875 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:20:55,876 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:20:55,876 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 11:20:55,876 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:20:55,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:20:55,877 INFO L82 PathProgramCache]: Analyzing trace with hash -2059109809, now seen corresponding path program 1 times [2020-09-25 11:20:55,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:20:55,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [925449447] [2020-09-25 11:20:55,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:20:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:20:55,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:20:55,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:20:56,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:20:56,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 11:20:56,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:20:56,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-09-25 11:20:56,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:20:56,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:20:56,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:20:56,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-25 11:20:56,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 11:20:56,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:20:56,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:20:56,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:20:56,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:20:56,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:20:56,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 11:20:56,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:20:56,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:20:56,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:20:56,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:20:56,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:20:56,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:20:56,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:20:56,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:20:56,092 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:20:56,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [925449447] [2020-09-25 11:20:56,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:20:56,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 11:20:56,093 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166108585] [2020-09-25 11:20:56,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 11:20:56,094 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:20:56,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 11:20:56,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 11:20:56,094 INFO L87 Difference]: Start difference. First operand 249 states and 290 transitions. Second operand 4 states. [2020-09-25 11:20:56,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:20:56,316 INFO L93 Difference]: Finished difference Result 494 states and 576 transitions. [2020-09-25 11:20:56,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 11:20:56,317 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 72 [2020-09-25 11:20:56,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:20:56,319 INFO L225 Difference]: With dead ends: 494 [2020-09-25 11:20:56,319 INFO L226 Difference]: Without dead ends: 283 [2020-09-25 11:20:56,320 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 [2020-09-25 11:20:56,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2020-09-25 11:20:56,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 281. [2020-09-25 11:20:56,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-09-25 11:20:56,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 322 transitions. [2020-09-25 11:20:56,349 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 322 transitions. Word has length 72 [2020-09-25 11:20:56,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:20:56,349 INFO L479 AbstractCegarLoop]: Abstraction has 281 states and 322 transitions. [2020-09-25 11:20:56,349 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 11:20:56,349 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 322 transitions. [2020-09-25 11:20:56,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-09-25 11:20:56,353 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:20:56,353 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:20:56,353 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 11:20:56,354 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:20:56,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:20:56,354 INFO L82 PathProgramCache]: Analyzing trace with hash 1063922455, now seen corresponding path program 1 times [2020-09-25 11:20:56,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:20:56,355 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [952311925] [2020-09-25 11:20:56,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:20:56,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:20:56,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:20:56,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:20:56,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-25 11:20:56,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:20:56,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 11:20:56,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:20:56,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:20:56,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:20:56,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 11:20:56,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 11:20:56,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:20:56,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:20:56,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:20:56,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:20:56,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:20:56,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 11:20:56,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:20:56,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 11:20:56,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:20:56,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:20:56,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:20:56,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:20:56,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:20:56,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:20:56,550 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-09-25 11:20:56,550 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [952311925] [2020-09-25 11:20:56,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:20:56,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 11:20:56,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148473746] [2020-09-25 11:20:56,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 11:20:56,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:20:56,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 11:20:56,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 11:20:56,553 INFO L87 Difference]: Start difference. First operand 281 states and 322 transitions. Second operand 4 states. [2020-09-25 11:20:56,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:20:56,741 INFO L93 Difference]: Finished difference Result 460 states and 530 transitions. [2020-09-25 11:20:56,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 11:20:56,743 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 111 [2020-09-25 11:20:56,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:20:56,746 INFO L225 Difference]: With dead ends: 460 [2020-09-25 11:20:56,746 INFO L226 Difference]: Without dead ends: 217 [2020-09-25 11:20:56,747 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 [2020-09-25 11:20:56,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-09-25 11:20:56,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-09-25 11:20:56,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-09-25 11:20:56,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 245 transitions. [2020-09-25 11:20:56,769 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 245 transitions. Word has length 111 [2020-09-25 11:20:56,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:20:56,772 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 245 transitions. [2020-09-25 11:20:56,772 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 11:20:56,772 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 245 transitions. [2020-09-25 11:20:56,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-09-25 11:20:56,781 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:20:56,782 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:20:56,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 11:20:56,782 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:20:56,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:20:56,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1519310599, now seen corresponding path program 1 times [2020-09-25 11:20:56,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:20:56,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1252498826] [2020-09-25 11:20:56,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:20:56,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:20:56,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:20:56,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:20:56,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-25 11:20:56,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:20:56,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-09-25 11:20:56,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:20:56,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:20:56,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 11:20:56,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 11:20:56,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 11:20:56,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:20:57,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:20:57,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:20:57,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:20:57,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:20:57,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 11:20:57,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:20:57,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 11:20:57,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:20:57,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:20:57,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:20:57,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:20:57,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:20:57,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:20:57,139 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-09-25 11:20:57,140 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1252498826] [2020-09-25 11:20:57,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:20:57,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 11:20:57,142 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987314053] [2020-09-25 11:20:57,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 11:20:57,143 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:20:57,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 11:20:57,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 11:20:57,144 INFO L87 Difference]: Start difference. First operand 217 states and 245 transitions. Second operand 5 states. [2020-09-25 11:20:57,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:20:57,659 INFO L93 Difference]: Finished difference Result 225 states and 253 transitions. [2020-09-25 11:20:57,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 11:20:57,660 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 112 [2020-09-25 11:20:57,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:20:57,661 INFO L225 Difference]: With dead ends: 225 [2020-09-25 11:20:57,661 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 11:20:57,663 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-25 11:20:57,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 11:20:57,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 11:20:57,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 11:20:57,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 11:20:57,664 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 112 [2020-09-25 11:20:57,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:20:57,665 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 11:20:57,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 11:20:57,666 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 11:20:57,666 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 11:20:57,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 11:20:57,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 11:20:57,921 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-25 11:20:57,922 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-25 11:20:57,922 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~m_connect_2~0 |old(~m_connect_2~0)|) (= ~m_connect_1~0 |old(~m_connect_1~0)|) (= ~m_flush~0 |old(~m_flush~0)|) (= ~m_PipedOutputStream~0 |old(~m_PipedOutputStream~0)|) (= ~m_write~0 |old(~m_write~0)|) (= ~m_close~0 |old(~m_close~0)|)) [2020-09-25 11:20:57,923 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-09-25 11:20:57,923 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-25 11:20:57,923 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-09-25 11:20:57,923 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-09-25 11:20:57,923 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 11:20:57,923 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 11:20:57,923 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 11:20:57,924 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 11:20:57,924 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 11:20:57,926 INFO L268 CegarLoopResult]: For program point L250(line 250) no Hoare annotation was computed. [2020-09-25 11:20:57,926 INFO L268 CegarLoopResult]: For program point L250-1(line 250) no Hoare annotation was computed. [2020-09-25 11:20:57,927 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 344) no Hoare annotation was computed. [2020-09-25 11:20:57,927 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-09-25 11:20:57,927 INFO L268 CegarLoopResult]: For program point L118-1(line 118) no Hoare annotation was computed. [2020-09-25 11:20:57,927 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 11:20:57,927 INFO L268 CegarLoopResult]: For program point L234(line 234) no Hoare annotation was computed. [2020-09-25 11:20:57,927 INFO L268 CegarLoopResult]: For program point L234-1(line 234) no Hoare annotation was computed. [2020-09-25 11:20:57,927 INFO L268 CegarLoopResult]: For program point L36(lines 36 47) no Hoare annotation was computed. [2020-09-25 11:20:57,928 INFO L268 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-09-25 11:20:57,928 INFO L268 CegarLoopResult]: For program point L53(lines 53 104) no Hoare annotation was computed. [2020-09-25 11:20:57,928 INFO L268 CegarLoopResult]: For program point L86-1(lines 86 101) no Hoare annotation was computed. [2020-09-25 11:20:57,928 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-25 11:20:57,928 INFO L268 CegarLoopResult]: For program point L86-2(line 86) no Hoare annotation was computed. [2020-09-25 11:20:57,929 INFO L268 CegarLoopResult]: For program point L86-3(line 86) no Hoare annotation was computed. [2020-09-25 11:20:57,929 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-09-25 11:20:57,929 INFO L268 CegarLoopResult]: For program point L202-1(lines 202 217) no Hoare annotation was computed. [2020-09-25 11:20:57,929 INFO L268 CegarLoopResult]: For program point L202-2(line 202) no Hoare annotation was computed. [2020-09-25 11:20:57,930 INFO L268 CegarLoopResult]: For program point L202-3(line 202) no Hoare annotation was computed. [2020-09-25 11:20:57,930 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-09-25 11:20:57,930 INFO L268 CegarLoopResult]: For program point L70-1(lines 70 85) no Hoare annotation was computed. [2020-09-25 11:20:57,930 INFO L268 CegarLoopResult]: For program point L70-2(line 70) no Hoare annotation was computed. [2020-09-25 11:20:57,930 INFO L268 CegarLoopResult]: For program point L70-3(line 70) no Hoare annotation was computed. [2020-09-25 11:20:57,930 INFO L268 CegarLoopResult]: For program point L318(line 318) no Hoare annotation was computed. [2020-09-25 11:20:57,930 INFO L268 CegarLoopResult]: For program point L318-1(lines 318 333) no Hoare annotation was computed. [2020-09-25 11:20:57,930 INFO L268 CegarLoopResult]: For program point L318-2(line 318) no Hoare annotation was computed. [2020-09-25 11:20:57,931 INFO L268 CegarLoopResult]: For program point L318-3(line 318) no Hoare annotation was computed. [2020-09-25 11:20:57,931 INFO L268 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-09-25 11:20:57,932 INFO L268 CegarLoopResult]: For program point L186-1(lines 186 201) no Hoare annotation was computed. [2020-09-25 11:20:57,932 INFO L268 CegarLoopResult]: For program point L186-2(line 186) no Hoare annotation was computed. [2020-09-25 11:20:57,932 INFO L268 CegarLoopResult]: For program point L186-3(line 186) no Hoare annotation was computed. [2020-09-25 11:20:57,932 INFO L268 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-09-25 11:20:57,932 INFO L268 CegarLoopResult]: For program point L54-1(lines 54 69) no Hoare annotation was computed. [2020-09-25 11:20:57,932 INFO L268 CegarLoopResult]: For program point L54-2(line 54) no Hoare annotation was computed. [2020-09-25 11:20:57,932 INFO L268 CegarLoopResult]: For program point L54-3(line 54) no Hoare annotation was computed. [2020-09-25 11:20:57,933 INFO L264 CegarLoopResult]: At program point L335(lines 23 339) the Hoare annotation is: (let ((.cse0 (= main_~this_sink~0 0))) (or (and .cse0 (= main_~q~0 2)) (and (= main_~q~0 0) .cse0) (and (<= 3 main_~q~0) (or (<= (+ main_~this_sink~0 1) 0) (<= 1 main_~this_sink~0))))) [2020-09-25 11:20:57,933 INFO L268 CegarLoopResult]: For program point L302(line 302) no Hoare annotation was computed. [2020-09-25 11:20:57,933 INFO L268 CegarLoopResult]: For program point L302-1(lines 302 317) no Hoare annotation was computed. [2020-09-25 11:20:57,933 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 344) no Hoare annotation was computed. [2020-09-25 11:20:57,933 INFO L268 CegarLoopResult]: For program point L302-2(line 302) no Hoare annotation was computed. [2020-09-25 11:20:57,933 INFO L268 CegarLoopResult]: For program point L302-3(line 302) no Hoare annotation was computed. [2020-09-25 11:20:57,933 INFO L268 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-09-25 11:20:57,934 INFO L268 CegarLoopResult]: For program point L170-1(lines 170 185) no Hoare annotation was computed. [2020-09-25 11:20:57,934 INFO L268 CegarLoopResult]: For program point L170-2(line 170) no Hoare annotation was computed. [2020-09-25 11:20:57,934 INFO L268 CegarLoopResult]: For program point L170-3(line 170) no Hoare annotation was computed. [2020-09-25 11:20:57,935 INFO L268 CegarLoopResult]: For program point L286(line 286) no Hoare annotation was computed. [2020-09-25 11:20:57,935 INFO L268 CegarLoopResult]: For program point L286-1(lines 286 301) no Hoare annotation was computed. [2020-09-25 11:20:57,935 INFO L268 CegarLoopResult]: For program point L286-2(line 286) no Hoare annotation was computed. [2020-09-25 11:20:57,935 INFO L268 CegarLoopResult]: For program point L286-3(line 286) no Hoare annotation was computed. [2020-09-25 11:20:57,935 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-09-25 11:20:57,935 INFO L268 CegarLoopResult]: For program point L154-1(lines 154 169) no Hoare annotation was computed. [2020-09-25 11:20:57,935 INFO L268 CegarLoopResult]: For program point L88(lines 88 99) no Hoare annotation was computed. [2020-09-25 11:20:57,935 INFO L268 CegarLoopResult]: For program point L154-2(line 154) no Hoare annotation was computed. [2020-09-25 11:20:57,936 INFO L268 CegarLoopResult]: For program point L154-3(line 154) no Hoare annotation was computed. [2020-09-25 11:20:57,936 INFO L268 CegarLoopResult]: For program point L270(line 270) no Hoare annotation was computed. [2020-09-25 11:20:57,936 INFO L268 CegarLoopResult]: For program point L270-1(lines 270 285) no Hoare annotation was computed. [2020-09-25 11:20:57,937 INFO L268 CegarLoopResult]: For program point L204(lines 204 215) no Hoare annotation was computed. [2020-09-25 11:20:57,937 INFO L268 CegarLoopResult]: For program point L270-2(line 270) no Hoare annotation was computed. [2020-09-25 11:20:57,937 INFO L268 CegarLoopResult]: For program point L270-3(line 270) no Hoare annotation was computed. [2020-09-25 11:20:57,937 INFO L268 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-09-25 11:20:57,937 INFO L268 CegarLoopResult]: For program point L105(lines 105 220) no Hoare annotation was computed. [2020-09-25 11:20:57,937 INFO L268 CegarLoopResult]: For program point L138-1(lines 138 153) no Hoare annotation was computed. [2020-09-25 11:20:57,937 INFO L268 CegarLoopResult]: For program point L72(lines 72 83) no Hoare annotation was computed. [2020-09-25 11:20:57,938 INFO L268 CegarLoopResult]: For program point L138-2(line 138) no Hoare annotation was computed. [2020-09-25 11:20:57,938 INFO L268 CegarLoopResult]: For program point L138-3(line 138) no Hoare annotation was computed. [2020-09-25 11:20:57,938 INFO L268 CegarLoopResult]: For program point L320(lines 320 331) no Hoare annotation was computed. [2020-09-25 11:20:57,938 INFO L268 CegarLoopResult]: For program point L254(line 254) no Hoare annotation was computed. [2020-09-25 11:20:57,939 INFO L268 CegarLoopResult]: For program point L221(lines 221 336) no Hoare annotation was computed. [2020-09-25 11:20:57,939 INFO L268 CegarLoopResult]: For program point L254-1(lines 254 269) no Hoare annotation was computed. [2020-09-25 11:20:57,939 INFO L268 CegarLoopResult]: For program point L188(lines 188 199) no Hoare annotation was computed. [2020-09-25 11:20:57,939 INFO L268 CegarLoopResult]: For program point L254-2(line 254) no Hoare annotation was computed. [2020-09-25 11:20:57,939 INFO L268 CegarLoopResult]: For program point L254-3(line 254) no Hoare annotation was computed. [2020-09-25 11:20:57,939 INFO L268 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-09-25 11:20:57,939 INFO L268 CegarLoopResult]: For program point L122-1(lines 122 137) no Hoare annotation was computed. [2020-09-25 11:20:57,940 INFO L268 CegarLoopResult]: For program point L56(lines 56 67) no Hoare annotation was computed. [2020-09-25 11:20:57,940 INFO L268 CegarLoopResult]: For program point L122-2(line 122) no Hoare annotation was computed. [2020-09-25 11:20:57,940 INFO L268 CegarLoopResult]: For program point L122-3(line 122) no Hoare annotation was computed. [2020-09-25 11:20:57,940 INFO L264 CegarLoopResult]: At program point L23-2(lines 23 339) the Hoare annotation is: (or (and (= main_~q~0 0) (= main_~this_sink~0 0)) (and (<= 3 main_~q~0) (or (<= (+ main_~this_sink~0 1) 0) (<= 1 main_~this_sink~0)))) [2020-09-25 11:20:57,940 INFO L268 CegarLoopResult]: For program point L23-3(lines 23 339) no Hoare annotation was computed. [2020-09-25 11:20:57,940 INFO L268 CegarLoopResult]: For program point L304(lines 304 315) no Hoare annotation was computed. [2020-09-25 11:20:57,940 INFO L268 CegarLoopResult]: For program point L238(line 238) no Hoare annotation was computed. [2020-09-25 11:20:57,941 INFO L268 CegarLoopResult]: For program point L238-1(lines 238 253) no Hoare annotation was computed. [2020-09-25 11:20:57,941 INFO L268 CegarLoopResult]: For program point L172(lines 172 183) no Hoare annotation was computed. [2020-09-25 11:20:57,941 INFO L268 CegarLoopResult]: For program point L238-2(line 238) no Hoare annotation was computed. [2020-09-25 11:20:57,941 INFO L268 CegarLoopResult]: For program point L238-3(line 238) no Hoare annotation was computed. [2020-09-25 11:20:57,941 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-09-25 11:20:57,941 INFO L268 CegarLoopResult]: For program point L106-1(lines 106 121) no Hoare annotation was computed. [2020-09-25 11:20:57,941 INFO L268 CegarLoopResult]: For program point L40(lines 40 42) no Hoare annotation was computed. [2020-09-25 11:20:57,941 INFO L268 CegarLoopResult]: For program point L106-2(line 106) no Hoare annotation was computed. [2020-09-25 11:20:57,942 INFO L268 CegarLoopResult]: For program point L106-3(line 106) no Hoare annotation was computed. [2020-09-25 11:20:57,942 INFO L268 CegarLoopResult]: For program point L288(lines 288 299) no Hoare annotation was computed. [2020-09-25 11:20:57,942 INFO L268 CegarLoopResult]: For program point L222(line 222) no Hoare annotation was computed. [2020-09-25 11:20:57,942 INFO L268 CegarLoopResult]: For program point L222-1(lines 222 237) no Hoare annotation was computed. [2020-09-25 11:20:57,942 INFO L268 CegarLoopResult]: For program point L156(lines 156 167) no Hoare annotation was computed. [2020-09-25 11:20:57,942 INFO L268 CegarLoopResult]: For program point L222-2(line 222) no Hoare annotation was computed. [2020-09-25 11:20:57,942 INFO L268 CegarLoopResult]: For program point L222-3(line 222) no Hoare annotation was computed. [2020-09-25 11:20:57,942 INFO L268 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-09-25 11:20:57,943 INFO L268 CegarLoopResult]: For program point L272(lines 272 283) no Hoare annotation was computed. [2020-09-25 11:20:57,943 INFO L268 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-09-25 11:20:57,943 INFO L268 CegarLoopResult]: For program point L140(lines 140 151) no Hoare annotation was computed. [2020-09-25 11:20:57,943 INFO L268 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-09-25 11:20:57,943 INFO L268 CegarLoopResult]: For program point L322(line 322) no Hoare annotation was computed. [2020-09-25 11:20:57,944 INFO L268 CegarLoopResult]: For program point L256(lines 256 267) no Hoare annotation was computed. [2020-09-25 11:20:57,944 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-09-25 11:20:57,944 INFO L268 CegarLoopResult]: For program point L124(lines 124 135) no Hoare annotation was computed. [2020-09-25 11:20:57,944 INFO L268 CegarLoopResult]: For program point L306(line 306) no Hoare annotation was computed. [2020-09-25 11:20:57,944 INFO L268 CegarLoopResult]: For program point L240(lines 240 251) no Hoare annotation was computed. [2020-09-25 11:20:57,944 INFO L268 CegarLoopResult]: For program point L108(lines 108 119) no Hoare annotation was computed. [2020-09-25 11:20:57,944 INFO L268 CegarLoopResult]: For program point L224(lines 224 235) no Hoare annotation was computed. [2020-09-25 11:20:57,944 INFO L268 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-09-25 11:20:57,944 INFO L268 CegarLoopResult]: For program point L92(lines 92 94) no Hoare annotation was computed. [2020-09-25 11:20:57,945 INFO L268 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-09-25 11:20:57,945 INFO L268 CegarLoopResult]: For program point L26-1(line 26) no Hoare annotation was computed. [2020-09-25 11:20:57,945 INFO L268 CegarLoopResult]: For program point L26-2(line 26) no Hoare annotation was computed. [2020-09-25 11:20:57,945 INFO L268 CegarLoopResult]: For program point L274(line 274) no Hoare annotation was computed. [2020-09-25 11:20:57,945 INFO L268 CegarLoopResult]: For program point L208(lines 208 210) no Hoare annotation was computed. [2020-09-25 11:20:57,946 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-09-25 11:20:57,946 INFO L268 CegarLoopResult]: For program point L76(lines 76 78) no Hoare annotation was computed. [2020-09-25 11:20:57,946 INFO L268 CegarLoopResult]: For program point L324(lines 324 326) no Hoare annotation was computed. [2020-09-25 11:20:57,946 INFO L268 CegarLoopResult]: For program point L258(line 258) no Hoare annotation was computed. [2020-09-25 11:20:57,946 INFO L268 CegarLoopResult]: For program point L192(lines 192 194) no Hoare annotation was computed. [2020-09-25 11:20:57,947 INFO L268 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-09-25 11:20:57,947 INFO L268 CegarLoopResult]: For program point L60(lines 60 62) no Hoare annotation was computed. [2020-09-25 11:20:57,947 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-09-25 11:20:57,947 INFO L268 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed. [2020-09-25 11:20:57,947 INFO L268 CegarLoopResult]: For program point L27-2(line 27) no Hoare annotation was computed. [2020-09-25 11:20:57,947 INFO L268 CegarLoopResult]: For program point L308(lines 308 310) no Hoare annotation was computed. [2020-09-25 11:20:57,947 INFO L268 CegarLoopResult]: For program point L242(line 242) no Hoare annotation was computed. [2020-09-25 11:20:57,948 INFO L268 CegarLoopResult]: For program point L176(lines 176 178) no Hoare annotation was computed. [2020-09-25 11:20:57,948 INFO L268 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-09-25 11:20:57,948 INFO L268 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-09-25 11:20:57,948 INFO L264 CegarLoopResult]: At program point L325(lines 13 344) the Hoare annotation is: false [2020-09-25 11:20:57,948 INFO L268 CegarLoopResult]: For program point L292(lines 292 294) no Hoare annotation was computed. [2020-09-25 11:20:57,948 INFO L268 CegarLoopResult]: For program point L226(line 226) no Hoare annotation was computed. [2020-09-25 11:20:57,948 INFO L268 CegarLoopResult]: For program point L160(lines 160 162) no Hoare annotation was computed. [2020-09-25 11:20:57,949 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-25 11:20:57,949 INFO L268 CegarLoopResult]: For program point L28-1(line 28) no Hoare annotation was computed. [2020-09-25 11:20:57,949 INFO L268 CegarLoopResult]: For program point L28-2(line 28) no Hoare annotation was computed. [2020-09-25 11:20:57,949 INFO L268 CegarLoopResult]: For program point L276(lines 276 278) no Hoare annotation was computed. [2020-09-25 11:20:57,949 INFO L268 CegarLoopResult]: For program point L144(lines 144 146) no Hoare annotation was computed. [2020-09-25 11:20:57,949 INFO L268 CegarLoopResult]: For program point L260(lines 260 262) no Hoare annotation was computed. [2020-09-25 11:20:57,949 INFO L268 CegarLoopResult]: For program point L128(lines 128 130) no Hoare annotation was computed. [2020-09-25 11:20:57,950 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-09-25 11:20:57,950 INFO L268 CegarLoopResult]: For program point L29-1(line 29) no Hoare annotation was computed. [2020-09-25 11:20:57,950 INFO L268 CegarLoopResult]: For program point L29-2(line 29) no Hoare annotation was computed. [2020-09-25 11:20:57,950 INFO L268 CegarLoopResult]: For program point L244(lines 244 246) no Hoare annotation was computed. [2020-09-25 11:20:57,950 INFO L268 CegarLoopResult]: For program point L112(lines 112 114) no Hoare annotation was computed. [2020-09-25 11:20:57,950 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-25 11:20:57,950 INFO L268 CegarLoopResult]: For program point L46-1(line 46) no Hoare annotation was computed. [2020-09-25 11:20:57,950 INFO L268 CegarLoopResult]: For program point L228(lines 228 230) no Hoare annotation was computed. [2020-09-25 11:20:57,951 INFO L268 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-09-25 11:20:57,951 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 343) no Hoare annotation was computed. [2020-09-25 11:20:57,951 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 344) the Hoare annotation is: true [2020-09-25 11:20:57,951 INFO L268 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-09-25 11:20:57,951 INFO L268 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-09-25 11:20:57,951 INFO L268 CegarLoopResult]: For program point L328(line 328) no Hoare annotation was computed. [2020-09-25 11:20:57,951 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-09-25 11:20:57,952 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-09-25 11:20:57,952 INFO L268 CegarLoopResult]: For program point L312(line 312) no Hoare annotation was computed. [2020-09-25 11:20:57,952 INFO L268 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-09-25 11:20:57,952 INFO L268 CegarLoopResult]: For program point L296(line 296) no Hoare annotation was computed. [2020-09-25 11:20:57,952 INFO L268 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-09-25 11:20:57,952 INFO L268 CegarLoopResult]: For program point L280(line 280) no Hoare annotation was computed. [2020-09-25 11:20:57,952 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-09-25 11:20:57,952 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 11:20:57,952 INFO L268 CegarLoopResult]: For program point L264(line 264) no Hoare annotation was computed. [2020-09-25 11:20:57,953 INFO L268 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-09-25 11:20:57,953 INFO L268 CegarLoopResult]: For program point L198-1(line 198) no Hoare annotation was computed. [2020-09-25 11:20:57,953 INFO L268 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-09-25 11:20:57,953 INFO L268 CegarLoopResult]: For program point L33(lines 33 52) no Hoare annotation was computed. [2020-09-25 11:20:57,953 INFO L268 CegarLoopResult]: For program point L248(line 248) no Hoare annotation was computed. [2020-09-25 11:20:57,953 INFO L268 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-09-25 11:20:57,953 INFO L268 CegarLoopResult]: For program point L298(line 298) no Hoare annotation was computed. [2020-09-25 11:20:57,953 INFO L268 CegarLoopResult]: For program point L298-1(line 298) no Hoare annotation was computed. [2020-09-25 11:20:57,953 INFO L268 CegarLoopResult]: For program point L232(line 232) no Hoare annotation was computed. [2020-09-25 11:20:57,954 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-09-25 11:20:57,954 INFO L268 CegarLoopResult]: For program point L166-1(line 166) no Hoare annotation was computed. [2020-09-25 11:20:57,954 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-09-25 11:20:57,954 INFO L268 CegarLoopResult]: For program point L34-1(lines 34 49) no Hoare annotation was computed. [2020-09-25 11:20:57,954 INFO L268 CegarLoopResult]: For program point L34-2(line 34) no Hoare annotation was computed. [2020-09-25 11:20:57,954 INFO L268 CegarLoopResult]: For program point L34-3(line 34) no Hoare annotation was computed. [2020-09-25 11:20:57,954 INFO L268 CegarLoopResult]: For program point L282(line 282) no Hoare annotation was computed. [2020-09-25 11:20:57,954 INFO L268 CegarLoopResult]: For program point L282-1(line 282) no Hoare annotation was computed. [2020-09-25 11:20:57,955 INFO L268 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-09-25 11:20:57,955 INFO L268 CegarLoopResult]: For program point L150-1(line 150) no Hoare annotation was computed. [2020-09-25 11:20:57,955 INFO L268 CegarLoopResult]: For program point L266(line 266) no Hoare annotation was computed. [2020-09-25 11:20:57,955 INFO L268 CegarLoopResult]: For program point L266-1(line 266) no Hoare annotation was computed. [2020-09-25 11:20:57,955 INFO L268 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-09-25 11:20:57,955 INFO L268 CegarLoopResult]: For program point L134-1(line 134) no Hoare annotation was computed. [2020-09-25 11:20:57,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 11:20:57 BoogieIcfgContainer [2020-09-25 11:20:57,985 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 11:20:57,990 INFO L168 Benchmark]: Toolchain (without parser) took 5873.68 ms. Allocated memory was 140.5 MB in the beginning and 282.1 MB in the end (delta: 141.6 MB). Free memory was 103.3 MB in the beginning and 148.7 MB in the end (delta: -45.4 MB). Peak memory consumption was 96.2 MB. Max. memory is 7.1 GB. [2020-09-25 11:20:57,997 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 11:20:57,998 INFO L168 Benchmark]: CACSL2BoogieTranslator took 530.03 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 102.7 MB in the beginning and 182.4 MB in the end (delta: -79.7 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-09-25 11:20:58,000 INFO L168 Benchmark]: Boogie Preprocessor took 50.49 ms. Allocated memory is still 203.4 MB. Free memory was 182.4 MB in the beginning and 180.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-09-25 11:20:58,001 INFO L168 Benchmark]: RCFGBuilder took 702.33 ms. Allocated memory is still 203.4 MB. Free memory was 179.3 MB in the beginning and 143.0 MB in the end (delta: 36.3 MB). Peak memory consumption was 36.3 MB. Max. memory is 7.1 GB. [2020-09-25 11:20:58,002 INFO L168 Benchmark]: TraceAbstraction took 4581.39 ms. Allocated memory was 203.4 MB in the beginning and 282.1 MB in the end (delta: 78.6 MB). Free memory was 143.0 MB in the beginning and 148.7 MB in the end (delta: -5.7 MB). Peak memory consumption was 72.9 MB. Max. memory is 7.1 GB. [2020-09-25 11:20:58,015 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 530.03 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 102.7 MB in the beginning and 182.4 MB in the end (delta: -79.7 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 50.49 ms. Allocated memory is still 203.4 MB. Free memory was 182.4 MB in the beginning and 180.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 702.33 ms. Allocated memory is still 203.4 MB. Free memory was 179.3 MB in the beginning and 143.0 MB in the end (delta: 36.3 MB). Peak memory consumption was 36.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4581.39 ms. Allocated memory was 203.4 MB in the beginning and 282.1 MB in the end (delta: 78.6 MB). Free memory was 143.0 MB in the beginning and 148.7 MB in the end (delta: -5.7 MB). Peak memory consumption was 72.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 343]: 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: 23]: Loop Invariant Derived loop invariant: ((this_sink == 0 && q == 2) || (q == 0 && this_sink == 0)) || (3 <= q && (this_sink + 1 <= 0 || 1 <= this_sink)) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (q == 0 && this_sink == 0) || (3 <= q && (this_sink + 1 <= 0 || 1 <= this_sink)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 201 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.1s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1253 SDtfs, 1672 SDslu, 85 SDs, 0 SdLazy, 805 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=281occurred 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, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 14 NumberOfFragments, 72 HoareAnnotationTreeSize, 7 FomulaSimplifications, 80 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 117 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 495 NumberOfCodeBlocks, 495 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 488 ConstructedInterpolants, 0 QuantifiedInterpolants, 97882 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 144/144 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...