/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/psyco/psyco_io_1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:58:15,697 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:58:15,701 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:58:15,729 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:58:15,730 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:58:15,731 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:58:15,732 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:58:15,734 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:58:15,736 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:58:15,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:58:15,738 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:58:15,739 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:58:15,740 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:58:15,741 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:58:15,742 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:58:15,743 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:58:15,744 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:58:15,745 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:58:15,747 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:58:15,750 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:58:15,751 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:58:15,753 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:58:15,754 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:58:15,755 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:58:15,758 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:58:15,758 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:58:15,758 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:58:15,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:58:15,760 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:58:15,761 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:58:15,761 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:58:15,762 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:58:15,766 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:58:15,767 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:58:15,768 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:58:15,768 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:58:15,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:58:15,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:58:15,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:58:15,771 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:58:15,772 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:58:15,774 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 07:58:15,826 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:58:15,827 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:58:15,828 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:58:15,828 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:58:15,828 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:58:15,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:58:15,830 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:58:15,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:58:15,830 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:58:15,831 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:58:15,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:58:15,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:58:15,831 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:58:15,831 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:58:15,832 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:58:15,833 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:58:15,833 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:58:15,834 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:58:15,834 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:58:15,834 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:58:15,835 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:58:15,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:58:15,835 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:58:15,836 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:58:15,836 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:58:15,836 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:58:15,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:58:15,836 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:58:15,837 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:58:15,837 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:58:16,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:58:16,306 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:58:16,310 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:58:16,312 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:58:16,313 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:58:16,314 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/psyco/psyco_io_1.c [2020-09-25 07:58:16,403 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aa4111970/99fae2e69bc34553b24b84414c2f7e11/FLAG945dd7728 [2020-09-25 07:58:16,935 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:58:16,937 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/psyco/psyco_io_1.c [2020-09-25 07:58:16,953 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aa4111970/99fae2e69bc34553b24b84414c2f7e11/FLAG945dd7728 [2020-09-25 07:58:17,272 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aa4111970/99fae2e69bc34553b24b84414c2f7e11 [2020-09-25 07:58:17,286 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:58:17,291 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:58:17,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:58:17,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:58:17,296 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:58:17,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:58:17" (1/1) ... [2020-09-25 07:58:17,301 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@347c51ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:58:17, skipping insertion in model container [2020-09-25 07:58:17,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:58:17" (1/1) ... [2020-09-25 07:58:17,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:58:17,344 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:58:17,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:58:17,592 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:58:17,631 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:58:17,650 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:58:17,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:58:17 WrapperNode [2020-09-25 07:58:17,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:58:17,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:58:17,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:58:17,651 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:58:17,745 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:58:17" (1/1) ... [2020-09-25 07:58:17,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:58:17" (1/1) ... [2020-09-25 07:58:17,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:58:17" (1/1) ... [2020-09-25 07:58:17,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:58:17" (1/1) ... [2020-09-25 07:58:17,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:58:17" (1/1) ... [2020-09-25 07:58:17,773 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:58:17" (1/1) ... [2020-09-25 07:58:17,775 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:58:17" (1/1) ... [2020-09-25 07:58:17,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:58:17,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:58:17,779 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:58:17,779 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:58:17,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:58:17" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:58:17,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:58:17,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:58:17,864 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:58:17,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:58:17,865 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:58:17,865 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:58:17,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:58:17,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:58:18,434 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:58:18,434 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:58:18,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:58:18 BoogieIcfgContainer [2020-09-25 07:58:18,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:58:18,447 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:58:18,447 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:58:18,451 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:58:18,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:58:17" (1/3) ... [2020-09-25 07:58:18,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@df3ba83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:58:18, skipping insertion in model container [2020-09-25 07:58:18,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:58:17" (2/3) ... [2020-09-25 07:58:18,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@df3ba83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:58:18, skipping insertion in model container [2020-09-25 07:58:18,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:58:18" (3/3) ... [2020-09-25 07:58:18,456 INFO L109 eAbstractionObserver]: Analyzing ICFG psyco_io_1.c [2020-09-25 07:58:18,467 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:58:18,478 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:58:18,501 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:58:18,537 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:58:18,537 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:58:18,538 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:58:18,538 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:58:18,538 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:58:18,538 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:58:18,539 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:58:18,539 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:58:18,568 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states. [2020-09-25 07:58:18,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 07:58:18,578 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:58:18,579 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 07:58:18,580 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:58:18,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:58:18,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1735850516, now seen corresponding path program 1 times [2020-09-25 07:58:18,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:58:18,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1481918615] [2020-09-25 07:58:18,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:58:18,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:58:18,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:58:18,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:58:18,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-25 07:58:18,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:58:18,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 07:58:18,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:58:18,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:58:18,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:58:18,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-09-25 07:58:18,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:58:18,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:58:18,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:58:18,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:58:18,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:58:18,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:58:18,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 07:58:18,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:58:18,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 07:58:18,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:58:18,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:58:18,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:58:18,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:58:18,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:58:18,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:58:18,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:58:18,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1481918615] [2020-09-25 07:58:18,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:58:18,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:58:18,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987880727] [2020-09-25 07:58:19,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:58:19,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:58:19,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:58:19,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:58:19,030 INFO L87 Difference]: Start difference. First operand 201 states. Second operand 3 states. [2020-09-25 07:58:19,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:58:19,145 INFO L93 Difference]: Finished difference Result 368 states and 482 transitions. [2020-09-25 07:58:19,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:58:19,151 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2020-09-25 07:58:19,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:58:19,176 INFO L225 Difference]: With dead ends: 368 [2020-09-25 07:58:19,176 INFO L226 Difference]: Without dead ends: 163 [2020-09-25 07:58:19,184 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 07:58:19,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-09-25 07:58:19,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2020-09-25 07:58:19,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-09-25 07:58:19,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 193 transitions. [2020-09-25 07:58:19,247 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 193 transitions. Word has length 35 [2020-09-25 07:58:19,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:58:19,248 INFO L479 AbstractCegarLoop]: Abstraction has 163 states and 193 transitions. [2020-09-25 07:58:19,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:58:19,248 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 193 transitions. [2020-09-25 07:58:19,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-25 07:58:19,250 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:58:19,250 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 07:58:19,251 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:58:19,251 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:58:19,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:58:19,252 INFO L82 PathProgramCache]: Analyzing trace with hash -1081886035, now seen corresponding path program 1 times [2020-09-25 07:58:19,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:58:19,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [809260876] [2020-09-25 07:58:19,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:58:19,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:58:19,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:58:19,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:58:19,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:58:19,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:58:19,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 07:58:19,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:58:19,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-09-25 07:58:19,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:58:19,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:58:19,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:58:19,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 07:58:19,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 07:58:19,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:58:19,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:58:19,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:58:19,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:58:19,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:58:19,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 07:58:19,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:58:19,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:58:19,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:58:19,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:58:19,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:58:19,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:58:19,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:58:19,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:58:19,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:58:19,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [809260876] [2020-09-25 07:58:19,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:58:19,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:58:19,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109812463] [2020-09-25 07:58:19,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:58:19,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:58:19,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:58:19,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:58:19,621 INFO L87 Difference]: Start difference. First operand 163 states and 193 transitions. Second operand 4 states. [2020-09-25 07:58:20,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:58:20,014 INFO L93 Difference]: Finished difference Result 436 states and 526 transitions. [2020-09-25 07:58:20,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 07:58:20,015 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2020-09-25 07:58:20,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:58:20,019 INFO L225 Difference]: With dead ends: 436 [2020-09-25 07:58:20,019 INFO L226 Difference]: Without dead ends: 281 [2020-09-25 07:58:20,021 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 07:58:20,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-09-25 07:58:20,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 268. [2020-09-25 07:58:20,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-09-25 07:58:20,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 321 transitions. [2020-09-25 07:58:20,044 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 321 transitions. Word has length 36 [2020-09-25 07:58:20,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:58:20,044 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 321 transitions. [2020-09-25 07:58:20,044 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:58:20,045 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 321 transitions. [2020-09-25 07:58:20,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-25 07:58:20,046 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:58:20,046 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:58:20,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:58:20,047 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:58:20,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:58:20,047 INFO L82 PathProgramCache]: Analyzing trace with hash -766916633, now seen corresponding path program 1 times [2020-09-25 07:58:20,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:58:20,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [926766914] [2020-09-25 07:58:20,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:58:20,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:58:20,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:58:20,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:58:20,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:58:20,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 07:58:20,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:58:20,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-25 07:58:20,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:58:20,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:58:20,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:58:20,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 07:58:20,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 07:58:20,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:58:20,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:58:20,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:58:20,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:58:20,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:58:20,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 07:58:20,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:58:20,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:58:20,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:58:20,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:58:20,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:58:20,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:58:20,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:58:20,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:58:20,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:58:20,183 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [926766914] [2020-09-25 07:58:20,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:58:20,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:58:20,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146665159] [2020-09-25 07:58:20,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:58:20,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:58:20,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:58:20,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:58:20,185 INFO L87 Difference]: Start difference. First operand 268 states and 321 transitions. Second operand 4 states. [2020-09-25 07:58:20,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:58:20,539 INFO L93 Difference]: Finished difference Result 558 states and 672 transitions. [2020-09-25 07:58:20,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 07:58:20,539 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-09-25 07:58:20,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:58:20,542 INFO L225 Difference]: With dead ends: 558 [2020-09-25 07:58:20,542 INFO L226 Difference]: Without dead ends: 304 [2020-09-25 07:58:20,544 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 07:58:20,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-09-25 07:58:20,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 283. [2020-09-25 07:58:20,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-09-25 07:58:20,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 336 transitions. [2020-09-25 07:58:20,567 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 336 transitions. Word has length 40 [2020-09-25 07:58:20,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:58:20,567 INFO L479 AbstractCegarLoop]: Abstraction has 283 states and 336 transitions. [2020-09-25 07:58:20,568 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:58:20,571 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 336 transitions. [2020-09-25 07:58:20,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-25 07:58:20,575 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:58:20,575 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] [2020-09-25 07:58:20,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:58:20,575 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:58:20,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:58:20,576 INFO L82 PathProgramCache]: Analyzing trace with hash -428581962, now seen corresponding path program 1 times [2020-09-25 07:58:20,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:58:20,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2136016133] [2020-09-25 07:58:20,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:58:20,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:58:20,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:58:20,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:58:20,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 07:58:20,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:58:20,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-25 07:58:20,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:58:20,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:58:20,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:58:20,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-25 07:58:20,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 07:58:20,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:58:20,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:58:20,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:58:20,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:58:20,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:58:20,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 07:58:20,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:58:20,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:58:20,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:58:20,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:58:20,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:58:20,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:58:20,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:58:20,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:58:20,771 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 07:58:20,772 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2136016133] [2020-09-25 07:58:20,773 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:58:20,773 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:58:20,773 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737430914] [2020-09-25 07:58:20,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:58:20,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:58:20,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:58:20,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:58:20,776 INFO L87 Difference]: Start difference. First operand 283 states and 336 transitions. Second operand 4 states. [2020-09-25 07:58:20,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:58:20,882 INFO L93 Difference]: Finished difference Result 521 states and 620 transitions. [2020-09-25 07:58:20,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 07:58:20,883 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2020-09-25 07:58:20,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:58:20,885 INFO L225 Difference]: With dead ends: 521 [2020-09-25 07:58:20,885 INFO L226 Difference]: Without dead ends: 252 [2020-09-25 07:58:20,889 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 07:58:20,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-09-25 07:58:20,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2020-09-25 07:58:20,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-09-25 07:58:20,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 294 transitions. [2020-09-25 07:58:20,912 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 294 transitions. Word has length 62 [2020-09-25 07:58:20,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:58:20,913 INFO L479 AbstractCegarLoop]: Abstraction has 252 states and 294 transitions. [2020-09-25 07:58:20,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:58:20,913 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 294 transitions. [2020-09-25 07:58:20,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 07:58:20,919 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:58:20,919 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 07:58:20,919 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:58:20,920 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:58:20,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:58:20,920 INFO L82 PathProgramCache]: Analyzing trace with hash -2059109809, now seen corresponding path program 1 times [2020-09-25 07:58:20,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:58:20,920 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1661904473] [2020-09-25 07:58:20,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:58:20,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:58:20,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:58:20,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:58:21,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:58:21,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 07:58:21,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:58:21,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-09-25 07:58:21,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:58:21,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:58:21,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:58:21,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-25 07:58:21,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 07:58:21,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:58:21,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:58:21,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:58:21,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:58:21,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:58:21,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 07:58:21,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:58:21,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:58:21,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:58:21,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:58:21,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:58:21,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:58:21,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:58:21,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:58:21,152 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 07:58:21,152 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1661904473] [2020-09-25 07:58:21,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:58:21,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:58:21,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103184343] [2020-09-25 07:58:21,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:58:21,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:58:21,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:58:21,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:58:21,154 INFO L87 Difference]: Start difference. First operand 252 states and 294 transitions. Second operand 4 states. [2020-09-25 07:58:21,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:58:21,353 INFO L93 Difference]: Finished difference Result 501 states and 586 transitions. [2020-09-25 07:58:21,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 07:58:21,354 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 72 [2020-09-25 07:58:21,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:58:21,356 INFO L225 Difference]: With dead ends: 501 [2020-09-25 07:58:21,356 INFO L226 Difference]: Without dead ends: 290 [2020-09-25 07:58:21,357 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 07:58:21,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-09-25 07:58:21,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 288. [2020-09-25 07:58:21,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2020-09-25 07:58:21,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 332 transitions. [2020-09-25 07:58:21,368 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 332 transitions. Word has length 72 [2020-09-25 07:58:21,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:58:21,369 INFO L479 AbstractCegarLoop]: Abstraction has 288 states and 332 transitions. [2020-09-25 07:58:21,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:58:21,369 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 332 transitions. [2020-09-25 07:58:21,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-09-25 07:58:21,372 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:58:21,372 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 07:58:21,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:58:21,372 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:58:21,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:58:21,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1063922455, now seen corresponding path program 1 times [2020-09-25 07:58:21,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:58:21,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1787935562] [2020-09-25 07:58:21,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:58:21,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:58:21,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:58:21,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:58:21,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-25 07:58:21,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:58:21,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 07:58:21,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:58:21,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:58:21,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:58:21,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 07:58:21,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 07:58:21,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:58:21,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:58:21,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:58:21,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:58:21,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:58:21,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 07:58:21,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:58:21,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:58:21,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:58:21,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:58:21,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:58:21,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:58:21,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:58:21,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:58:21,580 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 07:58:21,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1787935562] [2020-09-25 07:58:21,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:58:21,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:58:21,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318038033] [2020-09-25 07:58:21,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:58:21,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:58:21,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:58:21,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:58:21,587 INFO L87 Difference]: Start difference. First operand 288 states and 332 transitions. Second operand 4 states. [2020-09-25 07:58:21,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:58:21,771 INFO L93 Difference]: Finished difference Result 469 states and 543 transitions. [2020-09-25 07:58:21,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 07:58:21,772 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 111 [2020-09-25 07:58:21,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:58:21,774 INFO L225 Difference]: With dead ends: 469 [2020-09-25 07:58:21,774 INFO L226 Difference]: Without dead ends: 222 [2020-09-25 07:58:21,775 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 07:58:21,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2020-09-25 07:58:21,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2020-09-25 07:58:21,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-09-25 07:58:21,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 252 transitions. [2020-09-25 07:58:21,784 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 252 transitions. Word has length 111 [2020-09-25 07:58:21,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:58:21,785 INFO L479 AbstractCegarLoop]: Abstraction has 222 states and 252 transitions. [2020-09-25 07:58:21,785 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:58:21,785 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 252 transitions. [2020-09-25 07:58:21,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-09-25 07:58:21,787 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:58:21,788 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 07:58:21,788 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 07:58:21,788 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:58:21,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:58:21,788 INFO L82 PathProgramCache]: Analyzing trace with hash 1519310599, now seen corresponding path program 1 times [2020-09-25 07:58:21,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:58:21,789 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [821324791] [2020-09-25 07:58:21,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:58:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:58:21,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:58:21,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:58:21,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-25 07:58:21,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:58:21,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-25 07:58:21,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:58:21,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:58:21,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:58:21,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 07:58:21,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 07:58:21,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:58:22,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:58:22,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:58:22,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:58:22,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:58:22,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 07:58:22,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:58:22,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:58:22,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:58:22,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:58:22,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:58:22,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:58:22,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:58:22,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:58:22,071 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 07:58:22,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [821324791] [2020-09-25 07:58:22,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:58:22,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:58:22,073 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739602938] [2020-09-25 07:58:22,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:58:22,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:58:22,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:58:22,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:58:22,075 INFO L87 Difference]: Start difference. First operand 222 states and 252 transitions. Second operand 5 states. [2020-09-25 07:58:22,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:58:22,495 INFO L93 Difference]: Finished difference Result 230 states and 260 transitions. [2020-09-25 07:58:22,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 07:58:22,495 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 112 [2020-09-25 07:58:22,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:58:22,496 INFO L225 Difference]: With dead ends: 230 [2020-09-25 07:58:22,496 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 07:58:22,498 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:58:22,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 07:58:22,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 07:58:22,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 07:58:22,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 07:58:22,500 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 112 [2020-09-25 07:58:22,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:58:22,500 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 07:58:22,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:58:22,500 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 07:58:22,500 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 07:58:22,501 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 07:58:22,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 07:58:22,805 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-25 07:58:22,805 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-25 07:58:22,805 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 07:58:22,806 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-09-25 07:58:22,806 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-25 07:58:22,806 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-09-25 07:58:22,806 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-09-25 07:58:22,806 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 07:58:22,806 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 07:58:22,806 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 07:58:22,806 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 07:58:22,807 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 07:58:22,807 INFO L268 CegarLoopResult]: For program point L250(line 250) no Hoare annotation was computed. [2020-09-25 07:58:22,807 INFO L268 CegarLoopResult]: For program point L250-1(line 250) no Hoare annotation was computed. [2020-09-25 07:58:22,807 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 344) no Hoare annotation was computed. [2020-09-25 07:58:22,807 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-09-25 07:58:22,807 INFO L268 CegarLoopResult]: For program point L118-1(line 118) no Hoare annotation was computed. [2020-09-25 07:58:22,807 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 07:58:22,807 INFO L268 CegarLoopResult]: For program point L234(line 234) no Hoare annotation was computed. [2020-09-25 07:58:22,808 INFO L268 CegarLoopResult]: For program point L234-1(line 234) no Hoare annotation was computed. [2020-09-25 07:58:22,811 INFO L268 CegarLoopResult]: For program point L36(lines 36 47) no Hoare annotation was computed. [2020-09-25 07:58:22,811 INFO L268 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-09-25 07:58:22,811 INFO L268 CegarLoopResult]: For program point L53(lines 53 104) no Hoare annotation was computed. [2020-09-25 07:58:22,811 INFO L268 CegarLoopResult]: For program point L86-1(lines 86 101) no Hoare annotation was computed. [2020-09-25 07:58:22,811 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-25 07:58:22,811 INFO L268 CegarLoopResult]: For program point L86-2(line 86) no Hoare annotation was computed. [2020-09-25 07:58:22,812 INFO L268 CegarLoopResult]: For program point L86-3(line 86) no Hoare annotation was computed. [2020-09-25 07:58:22,812 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-09-25 07:58:22,812 INFO L268 CegarLoopResult]: For program point L202-1(lines 202 217) no Hoare annotation was computed. [2020-09-25 07:58:22,812 INFO L268 CegarLoopResult]: For program point L202-2(line 202) no Hoare annotation was computed. [2020-09-25 07:58:22,812 INFO L268 CegarLoopResult]: For program point L202-3(line 202) no Hoare annotation was computed. [2020-09-25 07:58:22,812 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-09-25 07:58:22,812 INFO L268 CegarLoopResult]: For program point L70-1(lines 70 85) no Hoare annotation was computed. [2020-09-25 07:58:22,812 INFO L268 CegarLoopResult]: For program point L70-2(line 70) no Hoare annotation was computed. [2020-09-25 07:58:22,813 INFO L268 CegarLoopResult]: For program point L70-3(line 70) no Hoare annotation was computed. [2020-09-25 07:58:22,813 INFO L268 CegarLoopResult]: For program point L318(line 318) no Hoare annotation was computed. [2020-09-25 07:58:22,813 INFO L268 CegarLoopResult]: For program point L318-1(lines 318 333) no Hoare annotation was computed. [2020-09-25 07:58:22,813 INFO L268 CegarLoopResult]: For program point L318-2(line 318) no Hoare annotation was computed. [2020-09-25 07:58:22,813 INFO L268 CegarLoopResult]: For program point L318-3(line 318) no Hoare annotation was computed. [2020-09-25 07:58:22,813 INFO L268 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-09-25 07:58:22,813 INFO L268 CegarLoopResult]: For program point L186-1(lines 186 201) no Hoare annotation was computed. [2020-09-25 07:58:22,813 INFO L268 CegarLoopResult]: For program point L186-2(line 186) no Hoare annotation was computed. [2020-09-25 07:58:22,814 INFO L268 CegarLoopResult]: For program point L186-3(line 186) no Hoare annotation was computed. [2020-09-25 07:58:22,815 INFO L268 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-09-25 07:58:22,815 INFO L268 CegarLoopResult]: For program point L54-1(lines 54 69) no Hoare annotation was computed. [2020-09-25 07:58:22,815 INFO L268 CegarLoopResult]: For program point L54-2(line 54) no Hoare annotation was computed. [2020-09-25 07:58:22,815 INFO L268 CegarLoopResult]: For program point L54-3(line 54) no Hoare annotation was computed. [2020-09-25 07:58:22,815 INFO L264 CegarLoopResult]: At program point L335(lines 23 339) the Hoare annotation is: (or (<= main_~q~0 0) (and (<= 3 main_~q~0) (or (<= (+ main_~this_sink~0 1) 0) (<= 1 main_~this_sink~0))) (and (<= 2 main_~q~0) (= main_~this_sink~0 0) (<= main_~q~0 2))) [2020-09-25 07:58:22,816 INFO L268 CegarLoopResult]: For program point L302(line 302) no Hoare annotation was computed. [2020-09-25 07:58:22,816 INFO L268 CegarLoopResult]: For program point L302-1(lines 302 317) no Hoare annotation was computed. [2020-09-25 07:58:22,816 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 344) no Hoare annotation was computed. [2020-09-25 07:58:22,816 INFO L268 CegarLoopResult]: For program point L302-2(line 302) no Hoare annotation was computed. [2020-09-25 07:58:22,816 INFO L268 CegarLoopResult]: For program point L302-3(line 302) no Hoare annotation was computed. [2020-09-25 07:58:22,816 INFO L268 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-09-25 07:58:22,816 INFO L268 CegarLoopResult]: For program point L170-1(lines 170 185) no Hoare annotation was computed. [2020-09-25 07:58:22,817 INFO L268 CegarLoopResult]: For program point L170-2(line 170) no Hoare annotation was computed. [2020-09-25 07:58:22,817 INFO L268 CegarLoopResult]: For program point L170-3(line 170) no Hoare annotation was computed. [2020-09-25 07:58:22,817 INFO L268 CegarLoopResult]: For program point L286(line 286) no Hoare annotation was computed. [2020-09-25 07:58:22,818 INFO L268 CegarLoopResult]: For program point L286-1(lines 286 301) no Hoare annotation was computed. [2020-09-25 07:58:22,818 INFO L268 CegarLoopResult]: For program point L286-2(line 286) no Hoare annotation was computed. [2020-09-25 07:58:22,818 INFO L268 CegarLoopResult]: For program point L286-3(line 286) no Hoare annotation was computed. [2020-09-25 07:58:22,818 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-09-25 07:58:22,818 INFO L268 CegarLoopResult]: For program point L154-1(lines 154 169) no Hoare annotation was computed. [2020-09-25 07:58:22,818 INFO L268 CegarLoopResult]: For program point L88(lines 88 99) no Hoare annotation was computed. [2020-09-25 07:58:22,818 INFO L268 CegarLoopResult]: For program point L154-2(line 154) no Hoare annotation was computed. [2020-09-25 07:58:22,819 INFO L268 CegarLoopResult]: For program point L154-3(line 154) no Hoare annotation was computed. [2020-09-25 07:58:22,819 INFO L268 CegarLoopResult]: For program point L270(line 270) no Hoare annotation was computed. [2020-09-25 07:58:22,819 INFO L268 CegarLoopResult]: For program point L270-1(lines 270 285) no Hoare annotation was computed. [2020-09-25 07:58:22,820 INFO L268 CegarLoopResult]: For program point L204(lines 204 215) no Hoare annotation was computed. [2020-09-25 07:58:22,820 INFO L268 CegarLoopResult]: For program point L270-2(line 270) no Hoare annotation was computed. [2020-09-25 07:58:22,820 INFO L268 CegarLoopResult]: For program point L270-3(line 270) no Hoare annotation was computed. [2020-09-25 07:58:22,820 INFO L268 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-09-25 07:58:22,820 INFO L268 CegarLoopResult]: For program point L105(lines 105 220) no Hoare annotation was computed. [2020-09-25 07:58:22,820 INFO L268 CegarLoopResult]: For program point L138-1(lines 138 153) no Hoare annotation was computed. [2020-09-25 07:58:22,820 INFO L268 CegarLoopResult]: For program point L72(lines 72 83) no Hoare annotation was computed. [2020-09-25 07:58:22,820 INFO L268 CegarLoopResult]: For program point L138-2(line 138) no Hoare annotation was computed. [2020-09-25 07:58:22,821 INFO L268 CegarLoopResult]: For program point L138-3(line 138) no Hoare annotation was computed. [2020-09-25 07:58:22,821 INFO L268 CegarLoopResult]: For program point L320(lines 320 331) no Hoare annotation was computed. [2020-09-25 07:58:22,821 INFO L268 CegarLoopResult]: For program point L254(line 254) no Hoare annotation was computed. [2020-09-25 07:58:22,821 INFO L268 CegarLoopResult]: For program point L221(lines 221 336) no Hoare annotation was computed. [2020-09-25 07:58:22,821 INFO L268 CegarLoopResult]: For program point L254-1(lines 254 269) no Hoare annotation was computed. [2020-09-25 07:58:22,821 INFO L268 CegarLoopResult]: For program point L188(lines 188 199) no Hoare annotation was computed. [2020-09-25 07:58:22,821 INFO L268 CegarLoopResult]: For program point L254-2(line 254) no Hoare annotation was computed. [2020-09-25 07:58:22,822 INFO L268 CegarLoopResult]: For program point L254-3(line 254) no Hoare annotation was computed. [2020-09-25 07:58:22,823 INFO L268 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-09-25 07:58:22,823 INFO L268 CegarLoopResult]: For program point L122-1(lines 122 137) no Hoare annotation was computed. [2020-09-25 07:58:22,823 INFO L268 CegarLoopResult]: For program point L56(lines 56 67) no Hoare annotation was computed. [2020-09-25 07:58:22,823 INFO L268 CegarLoopResult]: For program point L122-2(line 122) no Hoare annotation was computed. [2020-09-25 07:58:22,823 INFO L268 CegarLoopResult]: For program point L122-3(line 122) no Hoare annotation was computed. [2020-09-25 07:58:22,823 INFO L264 CegarLoopResult]: At program point L23-2(lines 23 339) the Hoare annotation is: (or (<= main_~q~0 0) (and (<= 3 main_~q~0) (or (<= (+ main_~this_sink~0 1) 0) (<= 1 main_~this_sink~0))) (and (<= 2 main_~q~0) (= main_~this_sink~0 0) (<= main_~q~0 2))) [2020-09-25 07:58:22,824 INFO L268 CegarLoopResult]: For program point L23-3(lines 23 339) no Hoare annotation was computed. [2020-09-25 07:58:22,824 INFO L268 CegarLoopResult]: For program point L304(lines 304 315) no Hoare annotation was computed. [2020-09-25 07:58:22,824 INFO L268 CegarLoopResult]: For program point L238(line 238) no Hoare annotation was computed. [2020-09-25 07:58:22,824 INFO L268 CegarLoopResult]: For program point L238-1(lines 238 253) no Hoare annotation was computed. [2020-09-25 07:58:22,824 INFO L268 CegarLoopResult]: For program point L172(lines 172 183) no Hoare annotation was computed. [2020-09-25 07:58:22,824 INFO L268 CegarLoopResult]: For program point L238-2(line 238) no Hoare annotation was computed. [2020-09-25 07:58:22,824 INFO L268 CegarLoopResult]: For program point L238-3(line 238) no Hoare annotation was computed. [2020-09-25 07:58:22,824 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-09-25 07:58:22,825 INFO L268 CegarLoopResult]: For program point L106-1(lines 106 121) no Hoare annotation was computed. [2020-09-25 07:58:22,825 INFO L268 CegarLoopResult]: For program point L40(lines 40 42) no Hoare annotation was computed. [2020-09-25 07:58:22,825 INFO L268 CegarLoopResult]: For program point L106-2(line 106) no Hoare annotation was computed. [2020-09-25 07:58:22,825 INFO L268 CegarLoopResult]: For program point L106-3(line 106) no Hoare annotation was computed. [2020-09-25 07:58:22,825 INFO L268 CegarLoopResult]: For program point L288(lines 288 299) no Hoare annotation was computed. [2020-09-25 07:58:22,825 INFO L268 CegarLoopResult]: For program point L222(line 222) no Hoare annotation was computed. [2020-09-25 07:58:22,825 INFO L268 CegarLoopResult]: For program point L222-1(lines 222 237) no Hoare annotation was computed. [2020-09-25 07:58:22,826 INFO L268 CegarLoopResult]: For program point L156(lines 156 167) no Hoare annotation was computed. [2020-09-25 07:58:22,826 INFO L268 CegarLoopResult]: For program point L222-2(line 222) no Hoare annotation was computed. [2020-09-25 07:58:22,826 INFO L268 CegarLoopResult]: For program point L222-3(line 222) no Hoare annotation was computed. [2020-09-25 07:58:22,826 INFO L268 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-09-25 07:58:22,827 INFO L268 CegarLoopResult]: For program point L272(lines 272 283) no Hoare annotation was computed. [2020-09-25 07:58:22,827 INFO L268 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-09-25 07:58:22,827 INFO L268 CegarLoopResult]: For program point L140(lines 140 151) no Hoare annotation was computed. [2020-09-25 07:58:22,828 INFO L268 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-09-25 07:58:22,828 INFO L268 CegarLoopResult]: For program point L322(line 322) no Hoare annotation was computed. [2020-09-25 07:58:22,828 INFO L268 CegarLoopResult]: For program point L256(lines 256 267) no Hoare annotation was computed. [2020-09-25 07:58:22,828 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-09-25 07:58:22,828 INFO L268 CegarLoopResult]: For program point L124(lines 124 135) no Hoare annotation was computed. [2020-09-25 07:58:22,828 INFO L268 CegarLoopResult]: For program point L306(line 306) no Hoare annotation was computed. [2020-09-25 07:58:22,828 INFO L268 CegarLoopResult]: For program point L240(lines 240 251) no Hoare annotation was computed. [2020-09-25 07:58:22,828 INFO L268 CegarLoopResult]: For program point L108(lines 108 119) no Hoare annotation was computed. [2020-09-25 07:58:22,829 INFO L268 CegarLoopResult]: For program point L224(lines 224 235) no Hoare annotation was computed. [2020-09-25 07:58:22,829 INFO L268 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-09-25 07:58:22,829 INFO L268 CegarLoopResult]: For program point L92(lines 92 94) no Hoare annotation was computed. [2020-09-25 07:58:22,829 INFO L268 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-09-25 07:58:22,829 INFO L268 CegarLoopResult]: For program point L26-1(line 26) no Hoare annotation was computed. [2020-09-25 07:58:22,829 INFO L268 CegarLoopResult]: For program point L26-2(line 26) no Hoare annotation was computed. [2020-09-25 07:58:22,829 INFO L268 CegarLoopResult]: For program point L274(line 274) no Hoare annotation was computed. [2020-09-25 07:58:22,829 INFO L268 CegarLoopResult]: For program point L208(lines 208 210) no Hoare annotation was computed. [2020-09-25 07:58:22,831 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-09-25 07:58:22,831 INFO L268 CegarLoopResult]: For program point L76(lines 76 78) no Hoare annotation was computed. [2020-09-25 07:58:22,831 INFO L268 CegarLoopResult]: For program point L324(lines 324 326) no Hoare annotation was computed. [2020-09-25 07:58:22,831 INFO L268 CegarLoopResult]: For program point L258(line 258) no Hoare annotation was computed. [2020-09-25 07:58:22,832 INFO L268 CegarLoopResult]: For program point L192(lines 192 194) no Hoare annotation was computed. [2020-09-25 07:58:22,832 INFO L268 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-09-25 07:58:22,832 INFO L268 CegarLoopResult]: For program point L60(lines 60 62) no Hoare annotation was computed. [2020-09-25 07:58:22,832 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-09-25 07:58:22,832 INFO L268 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed. [2020-09-25 07:58:22,832 INFO L268 CegarLoopResult]: For program point L27-2(line 27) no Hoare annotation was computed. [2020-09-25 07:58:22,832 INFO L268 CegarLoopResult]: For program point L308(lines 308 310) no Hoare annotation was computed. [2020-09-25 07:58:22,832 INFO L268 CegarLoopResult]: For program point L242(line 242) no Hoare annotation was computed. [2020-09-25 07:58:22,833 INFO L268 CegarLoopResult]: For program point L176(lines 176 178) no Hoare annotation was computed. [2020-09-25 07:58:22,833 INFO L268 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-09-25 07:58:22,833 INFO L268 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-09-25 07:58:22,833 INFO L264 CegarLoopResult]: At program point L325(lines 13 344) the Hoare annotation is: false [2020-09-25 07:58:22,833 INFO L268 CegarLoopResult]: For program point L292(lines 292 294) no Hoare annotation was computed. [2020-09-25 07:58:22,833 INFO L268 CegarLoopResult]: For program point L226(line 226) no Hoare annotation was computed. [2020-09-25 07:58:22,833 INFO L268 CegarLoopResult]: For program point L160(lines 160 162) no Hoare annotation was computed. [2020-09-25 07:58:22,834 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-25 07:58:22,834 INFO L268 CegarLoopResult]: For program point L28-1(line 28) no Hoare annotation was computed. [2020-09-25 07:58:22,834 INFO L268 CegarLoopResult]: For program point L28-2(line 28) no Hoare annotation was computed. [2020-09-25 07:58:22,834 INFO L268 CegarLoopResult]: For program point L276(lines 276 278) no Hoare annotation was computed. [2020-09-25 07:58:22,834 INFO L268 CegarLoopResult]: For program point L144(lines 144 146) no Hoare annotation was computed. [2020-09-25 07:58:22,834 INFO L268 CegarLoopResult]: For program point L260(lines 260 262) no Hoare annotation was computed. [2020-09-25 07:58:22,834 INFO L268 CegarLoopResult]: For program point L128(lines 128 130) no Hoare annotation was computed. [2020-09-25 07:58:22,834 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-09-25 07:58:22,835 INFO L268 CegarLoopResult]: For program point L29-1(line 29) no Hoare annotation was computed. [2020-09-25 07:58:22,835 INFO L268 CegarLoopResult]: For program point L29-2(line 29) no Hoare annotation was computed. [2020-09-25 07:58:22,835 INFO L268 CegarLoopResult]: For program point L244(lines 244 246) no Hoare annotation was computed. [2020-09-25 07:58:22,835 INFO L268 CegarLoopResult]: For program point L112(lines 112 114) no Hoare annotation was computed. [2020-09-25 07:58:22,835 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-25 07:58:22,835 INFO L268 CegarLoopResult]: For program point L46-1(line 46) no Hoare annotation was computed. [2020-09-25 07:58:22,835 INFO L268 CegarLoopResult]: For program point L228(lines 228 230) no Hoare annotation was computed. [2020-09-25 07:58:22,836 INFO L268 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-09-25 07:58:22,836 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 343) no Hoare annotation was computed. [2020-09-25 07:58:22,836 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 344) the Hoare annotation is: true [2020-09-25 07:58:22,836 INFO L268 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-09-25 07:58:22,836 INFO L268 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-09-25 07:58:22,836 INFO L268 CegarLoopResult]: For program point L328(line 328) no Hoare annotation was computed. [2020-09-25 07:58:22,837 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-09-25 07:58:22,837 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-09-25 07:58:22,837 INFO L268 CegarLoopResult]: For program point L312(line 312) no Hoare annotation was computed. [2020-09-25 07:58:22,837 INFO L268 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-09-25 07:58:22,837 INFO L268 CegarLoopResult]: For program point L296(line 296) no Hoare annotation was computed. [2020-09-25 07:58:22,837 INFO L268 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-09-25 07:58:22,837 INFO L268 CegarLoopResult]: For program point L280(line 280) no Hoare annotation was computed. [2020-09-25 07:58:22,837 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-09-25 07:58:22,838 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 07:58:22,838 INFO L268 CegarLoopResult]: For program point L264(line 264) no Hoare annotation was computed. [2020-09-25 07:58:22,838 INFO L268 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-09-25 07:58:22,838 INFO L268 CegarLoopResult]: For program point L198-1(line 198) no Hoare annotation was computed. [2020-09-25 07:58:22,838 INFO L268 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-09-25 07:58:22,838 INFO L268 CegarLoopResult]: For program point L33(lines 33 52) no Hoare annotation was computed. [2020-09-25 07:58:22,838 INFO L268 CegarLoopResult]: For program point L248(line 248) no Hoare annotation was computed. [2020-09-25 07:58:22,838 INFO L268 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-09-25 07:58:22,839 INFO L268 CegarLoopResult]: For program point L298(line 298) no Hoare annotation was computed. [2020-09-25 07:58:22,839 INFO L268 CegarLoopResult]: For program point L298-1(line 298) no Hoare annotation was computed. [2020-09-25 07:58:22,839 INFO L268 CegarLoopResult]: For program point L232(line 232) no Hoare annotation was computed. [2020-09-25 07:58:22,839 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-09-25 07:58:22,839 INFO L268 CegarLoopResult]: For program point L166-1(line 166) no Hoare annotation was computed. [2020-09-25 07:58:22,839 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-09-25 07:58:22,839 INFO L268 CegarLoopResult]: For program point L34-1(lines 34 49) no Hoare annotation was computed. [2020-09-25 07:58:22,840 INFO L268 CegarLoopResult]: For program point L34-2(line 34) no Hoare annotation was computed. [2020-09-25 07:58:22,840 INFO L268 CegarLoopResult]: For program point L34-3(line 34) no Hoare annotation was computed. [2020-09-25 07:58:22,840 INFO L268 CegarLoopResult]: For program point L282(line 282) no Hoare annotation was computed. [2020-09-25 07:58:22,840 INFO L268 CegarLoopResult]: For program point L282-1(line 282) no Hoare annotation was computed. [2020-09-25 07:58:22,840 INFO L268 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-09-25 07:58:22,840 INFO L268 CegarLoopResult]: For program point L150-1(line 150) no Hoare annotation was computed. [2020-09-25 07:58:22,840 INFO L268 CegarLoopResult]: For program point L266(line 266) no Hoare annotation was computed. [2020-09-25 07:58:22,840 INFO L268 CegarLoopResult]: For program point L266-1(line 266) no Hoare annotation was computed. [2020-09-25 07:58:22,841 INFO L268 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-09-25 07:58:22,841 INFO L268 CegarLoopResult]: For program point L134-1(line 134) no Hoare annotation was computed. [2020-09-25 07:58:22,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 07:58:22 BoogieIcfgContainer [2020-09-25 07:58:22,876 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 07:58:22,881 INFO L168 Benchmark]: Toolchain (without parser) took 5591.03 ms. Allocated memory was 140.5 MB in the beginning and 281.5 MB in the end (delta: 141.0 MB). Free memory was 102.3 MB in the beginning and 138.3 MB in the end (delta: -35.9 MB). Peak memory consumption was 105.1 MB. Max. memory is 7.1 GB. [2020-09-25 07:58:22,886 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 07:58:22,888 INFO L168 Benchmark]: CACSL2BoogieTranslator took 359.18 ms. Allocated memory is still 140.5 MB. Free memory was 101.7 MB in the beginning and 88.9 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2020-09-25 07:58:22,890 INFO L168 Benchmark]: Boogie Preprocessor took 127.48 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 88.9 MB in the beginning and 180.7 MB in the end (delta: -91.8 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2020-09-25 07:58:22,890 INFO L168 Benchmark]: RCFGBuilder took 666.42 ms. Allocated memory is still 203.4 MB. Free memory was 180.7 MB in the beginning and 143.7 MB in the end (delta: 37.0 MB). Peak memory consumption was 37.0 MB. Max. memory is 7.1 GB. [2020-09-25 07:58:22,891 INFO L168 Benchmark]: TraceAbstraction took 4429.51 ms. Allocated memory was 203.4 MB in the beginning and 281.5 MB in the end (delta: 78.1 MB). Free memory was 143.1 MB in the beginning and 138.3 MB in the end (delta: 4.8 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. [2020-09-25 07:58:22,903 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 359.18 ms. Allocated memory is still 140.5 MB. Free memory was 101.7 MB in the beginning and 88.9 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.48 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 88.9 MB in the beginning and 180.7 MB in the end (delta: -91.8 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 666.42 ms. Allocated memory is still 203.4 MB. Free memory was 180.7 MB in the beginning and 143.7 MB in the end (delta: 37.0 MB). Peak memory consumption was 37.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4429.51 ms. Allocated memory was 203.4 MB in the beginning and 281.5 MB in the end (delta: 78.1 MB). Free memory was 143.1 MB in the beginning and 138.3 MB in the end (delta: 4.8 MB). Peak memory consumption was 83.0 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: (q <= 0 || (3 <= q && (this_sink + 1 <= 0 || 1 <= this_sink))) || ((2 <= q && this_sink == 0) && q <= 2) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (q <= 0 || (3 <= q && (this_sink + 1 <= 0 || 1 <= this_sink))) || ((2 <= q && this_sink == 0) && q <= 2) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 201 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.9s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1263 SDtfs, 1797 SDslu, 85 SDs, 0 SdLazy, 842 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=288occurred 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, 36 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 15 NumberOfFragments, 77 HoareAnnotationTreeSize, 7 FomulaSimplifications, 170 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 140 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 468 NumberOfCodeBlocks, 468 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 461 ConstructedInterpolants, 0 QuantifiedInterpolants, 91769 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 130/130 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...