/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=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:29:58,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:29:58,682 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:29:58,725 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:29:58,726 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:29:58,734 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:29:58,736 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:29:58,740 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:29:58,743 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:29:58,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:29:58,748 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:29:58,749 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:29:58,749 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:29:58,752 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:29:58,756 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:29:58,757 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:29:58,759 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:29:58,760 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:29:58,762 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:29:58,770 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:29:58,773 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:29:58,774 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:29:58,775 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:29:58,776 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:29:58,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:29:58,794 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:29:58,794 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:29:58,796 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:29:58,799 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:29:58,800 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:29:58,800 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:29:58,801 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:29:58,802 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:29:58,803 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:29:58,806 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:29:58,806 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:29:58,807 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:29:58,808 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:29:58,808 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:29:58,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:29:58,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:29:58,811 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 [2020-09-24 18:29:58,858 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:29:58,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:29:58,861 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:29:58,861 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:29:58,861 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:29:58,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:29:58,862 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:29:58,862 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:29:58,862 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:29:58,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:29:58,864 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:29:58,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:29:58,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:29:58,865 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:29:58,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:29:58,865 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:29:58,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:29:58,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:29:58,866 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:29:58,866 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:29:58,866 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:29:58,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:29:58,867 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:29:58,867 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:29:58,867 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:29:58,867 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:29:58,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:29:58,867 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:29:58,868 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:29:58,868 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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;log-additional-information=true; [2020-09-24 18:29:59,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:29:59,383 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:29:59,388 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:29:59,390 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:29:59,390 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:29:59,392 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c [2020-09-24 18:29:59,486 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/689ac219a/d9f8717402464a359e4673cf8ed9c36a/FLAG173d7ad5f [2020-09-24 18:30:00,089 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:30:00,090 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c [2020-09-24 18:30:00,107 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/689ac219a/d9f8717402464a359e4673cf8ed9c36a/FLAG173d7ad5f [2020-09-24 18:30:00,418 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/689ac219a/d9f8717402464a359e4673cf8ed9c36a [2020-09-24 18:30:00,433 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:30:00,440 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:30:00,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:30:00,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:30:00,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:30:00,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:30:00" (1/1) ... [2020-09-24 18:30:00,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45241865 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:00, skipping insertion in model container [2020-09-24 18:30:00,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:30:00" (1/1) ... [2020-09-24 18:30:00,463 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:30:00,529 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:30:00,789 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:30:00,796 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:30:00,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:30:00,894 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:30:00,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:00 WrapperNode [2020-09-24 18:30:00,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:30:00,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:30:00,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:30:00,896 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:30:01,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:00" (1/1) ... [2020-09-24 18:30:01,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:00" (1/1) ... [2020-09-24 18:30:01,014 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:00" (1/1) ... [2020-09-24 18:30:01,015 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:00" (1/1) ... [2020-09-24 18:30:01,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:00" (1/1) ... [2020-09-24 18:30:01,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:00" (1/1) ... [2020-09-24 18:30:01,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:00" (1/1) ... [2020-09-24 18:30:01,033 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:30:01,034 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:30:01,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:30:01,034 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:30:01,036 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:00" (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 [2020-09-24 18:30:01,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:30:01,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:30:01,113 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 18:30:01,113 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:30:01,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:30:01,114 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 18:30:01,114 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 18:30:01,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 18:30:01,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:30:01,115 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:30:01,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:30:01,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:30:01,704 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:30:01,704 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 18:30:01,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:30:01 BoogieIcfgContainer [2020-09-24 18:30:01,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:30:01,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:30:01,722 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:30:01,726 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:30:01,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:30:00" (1/3) ... [2020-09-24 18:30:01,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f98854c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:30:01, skipping insertion in model container [2020-09-24 18:30:01,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:00" (2/3) ... [2020-09-24 18:30:01,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f98854c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:30:01, skipping insertion in model container [2020-09-24 18:30:01,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:30:01" (3/3) ... [2020-09-24 18:30:01,732 INFO L109 eAbstractionObserver]: Analyzing ICFG SpamAssassin-loop.i.v+cfa-reducer.c [2020-09-24 18:30:01,745 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:30:01,758 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-09-24 18:30:01,782 INFO L251 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-09-24 18:30:01,834 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:30:01,835 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:30:01,835 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:30:01,835 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:30:01,835 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:30:01,835 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:30:01,835 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:30:01,836 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:30:01,862 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states. [2020-09-24 18:30:01,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 18:30:01,870 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:01,872 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] [2020-09-24 18:30:01,872 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:01,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:01,879 INFO L82 PathProgramCache]: Analyzing trace with hash -2057699390, now seen corresponding path program 1 times [2020-09-24 18:30:01,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:01,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1305894105] [2020-09-24 18:30:01,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:02,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:02,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:02,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:02,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:02,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 18:30:02,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:30:02,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 484 [2020-09-24 18:30:02,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:02,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:30:02,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-24 18:30:02,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:30:02,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 18:30:02,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:02,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:02,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:02,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:02,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:30:02,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:02,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:30:02,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:02,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:02,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:02,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:02,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:30:02,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:30:02,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1305894105] [2020-09-24 18:30:02,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:02,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:30:02,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086169132] [2020-09-24 18:30:02,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:30:02,664 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:02,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:30:02,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:30:02,686 INFO L87 Difference]: Start difference. First operand 178 states. Second operand 6 states. [2020-09-24 18:30:03,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:03,573 INFO L93 Difference]: Finished difference Result 435 states and 497 transitions. [2020-09-24 18:30:03,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 18:30:03,575 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-09-24 18:30:03,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:03,607 INFO L225 Difference]: With dead ends: 435 [2020-09-24 18:30:03,607 INFO L226 Difference]: Without dead ends: 264 [2020-09-24 18:30:03,616 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-09-24 18:30:03,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-09-24 18:30:03,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 154. [2020-09-24 18:30:03,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-09-24 18:30:03,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 158 transitions. [2020-09-24 18:30:03,734 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 158 transitions. Word has length 30 [2020-09-24 18:30:03,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:03,734 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 158 transitions. [2020-09-24 18:30:03,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:30:03,735 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 158 transitions. [2020-09-24 18:30:03,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 18:30:03,736 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:03,736 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] [2020-09-24 18:30:03,736 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:30:03,737 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:03,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:03,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1575143415, now seen corresponding path program 1 times [2020-09-24 18:30:03,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:03,738 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [428948498] [2020-09-24 18:30:03,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:03,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:03,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:03,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:03,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 18:30:03,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:03,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-24 18:30:03,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:03,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:30:03,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-24 18:30:03,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 18:30:03,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:03,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:03,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:03,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:03,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:03,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:30:03,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:03,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:30:03,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:03,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:03,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:03,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:03,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:03,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:30:03,872 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [428948498] [2020-09-24 18:30:03,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:03,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:30:03,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092662399] [2020-09-24 18:30:03,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:30:03,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:03,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:30:03,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:30:03,876 INFO L87 Difference]: Start difference. First operand 154 states and 158 transitions. Second operand 6 states. [2020-09-24 18:30:04,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:04,291 INFO L93 Difference]: Finished difference Result 223 states and 230 transitions. [2020-09-24 18:30:04,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 18:30:04,291 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-09-24 18:30:04,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:04,294 INFO L225 Difference]: With dead ends: 223 [2020-09-24 18:30:04,294 INFO L226 Difference]: Without dead ends: 221 [2020-09-24 18:30:04,296 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:30:04,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-09-24 18:30:04,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 152. [2020-09-24 18:30:04,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-09-24 18:30:04,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 156 transitions. [2020-09-24 18:30:04,315 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 156 transitions. Word has length 30 [2020-09-24 18:30:04,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:04,315 INFO L479 AbstractCegarLoop]: Abstraction has 152 states and 156 transitions. [2020-09-24 18:30:04,315 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:30:04,315 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 156 transitions. [2020-09-24 18:30:04,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-24 18:30:04,317 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:04,320 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] [2020-09-24 18:30:04,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:30:04,320 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:04,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:04,321 INFO L82 PathProgramCache]: Analyzing trace with hash 949374873, now seen corresponding path program 1 times [2020-09-24 18:30:04,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:04,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [625657715] [2020-09-24 18:30:04,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:04,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:04,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:04,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:04,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-24 18:30:04,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:04,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-24 18:30:04,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:04,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:30:04,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-24 18:30:04,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 18:30:04,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:04,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:04,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:04,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:04,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:04,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:30:04,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:04,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:30:04,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:04,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:04,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:04,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:04,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:04,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:30:04,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [625657715] [2020-09-24 18:30:04,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:04,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:30:04,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651496430] [2020-09-24 18:30:04,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:30:04,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:04,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:30:04,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:30:04,471 INFO L87 Difference]: Start difference. First operand 152 states and 156 transitions. Second operand 6 states. [2020-09-24 18:30:04,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:04,849 INFO L93 Difference]: Finished difference Result 263 states and 271 transitions. [2020-09-24 18:30:04,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:30:04,850 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-09-24 18:30:04,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:04,853 INFO L225 Difference]: With dead ends: 263 [2020-09-24 18:30:04,853 INFO L226 Difference]: Without dead ends: 261 [2020-09-24 18:30:04,854 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-09-24 18:30:04,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2020-09-24 18:30:04,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 150. [2020-09-24 18:30:04,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-09-24 18:30:04,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 154 transitions. [2020-09-24 18:30:04,882 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 154 transitions. Word has length 35 [2020-09-24 18:30:04,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:04,883 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 154 transitions. [2020-09-24 18:30:04,883 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:30:04,883 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 154 transitions. [2020-09-24 18:30:04,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-24 18:30:04,889 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:04,889 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] [2020-09-24 18:30:04,889 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:30:04,889 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:04,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:04,890 INFO L82 PathProgramCache]: Analyzing trace with hash 386303974, now seen corresponding path program 1 times [2020-09-24 18:30:04,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:04,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1376698332] [2020-09-24 18:30:04,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:04,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:04,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:04,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:04,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-24 18:30:04,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:04,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-24 18:30:04,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:04,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:30:04,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-24 18:30:04,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 18:30:04,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:30:05,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:05,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:05,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:05,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:05,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:30:05,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:05,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:30:05,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:05,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:05,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:05,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:05,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:30:05,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:30:05,039 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1376698332] [2020-09-24 18:30:05,039 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:05,039 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:30:05,040 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280725201] [2020-09-24 18:30:05,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:30:05,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:05,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:30:05,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:30:05,041 INFO L87 Difference]: Start difference. First operand 150 states and 154 transitions. Second operand 6 states. [2020-09-24 18:30:05,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:05,301 INFO L93 Difference]: Finished difference Result 192 states and 199 transitions. [2020-09-24 18:30:05,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:30:05,302 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-09-24 18:30:05,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:05,304 INFO L225 Difference]: With dead ends: 192 [2020-09-24 18:30:05,304 INFO L226 Difference]: Without dead ends: 190 [2020-09-24 18:30:05,305 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-09-24 18:30:05,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-09-24 18:30:05,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 148. [2020-09-24 18:30:05,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-09-24 18:30:05,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 152 transitions. [2020-09-24 18:30:05,315 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 152 transitions. Word has length 35 [2020-09-24 18:30:05,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:05,315 INFO L479 AbstractCegarLoop]: Abstraction has 148 states and 152 transitions. [2020-09-24 18:30:05,316 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:30:05,316 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 152 transitions. [2020-09-24 18:30:05,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-24 18:30:05,317 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:05,318 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] [2020-09-24 18:30:05,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:30:05,318 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:05,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:05,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1765112685, now seen corresponding path program 1 times [2020-09-24 18:30:05,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:05,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1636430205] [2020-09-24 18:30:05,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:05,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:05,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:05,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:05,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 18:30:05,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:05,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 18:30:05,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:05,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:30:05,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 18:30:05,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 18:30:05,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:05,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:05,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:05,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:05,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:05,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:30:05,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:05,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:30:05,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:05,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:05,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:05,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:05,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:05,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:30:05,514 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1636430205] [2020-09-24 18:30:05,515 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:05,515 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 18:30:05,515 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119363461] [2020-09-24 18:30:05,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 18:30:05,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:05,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 18:30:05,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:30:05,516 INFO L87 Difference]: Start difference. First operand 148 states and 152 transitions. Second operand 7 states. [2020-09-24 18:30:06,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:06,094 INFO L93 Difference]: Finished difference Result 262 states and 270 transitions. [2020-09-24 18:30:06,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 18:30:06,095 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2020-09-24 18:30:06,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:06,097 INFO L225 Difference]: With dead ends: 262 [2020-09-24 18:30:06,097 INFO L226 Difference]: Without dead ends: 260 [2020-09-24 18:30:06,098 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2020-09-24 18:30:06,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-09-24 18:30:06,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 146. [2020-09-24 18:30:06,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-09-24 18:30:06,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 150 transitions. [2020-09-24 18:30:06,107 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 150 transitions. Word has length 40 [2020-09-24 18:30:06,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:06,108 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 150 transitions. [2020-09-24 18:30:06,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 18:30:06,108 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 150 transitions. [2020-09-24 18:30:06,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-24 18:30:06,110 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:06,110 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:30:06,110 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 18:30:06,110 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:06,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:06,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1900232348, now seen corresponding path program 1 times [2020-09-24 18:30:06,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:06,112 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1087683376] [2020-09-24 18:30:06,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:06,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:06,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:06,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:06,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-24 18:30:06,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:06,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-24 18:30:06,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:06,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:30:06,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-24 18:30:06,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 18:30:06,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:06,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:06,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:06,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:06,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:06,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:30:06,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:06,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:30:06,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:06,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:06,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:06,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:06,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:06,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:30:06,266 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1087683376] [2020-09-24 18:30:06,267 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:06,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:30:06,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485160485] [2020-09-24 18:30:06,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:30:06,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:06,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:30:06,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:30:06,269 INFO L87 Difference]: Start difference. First operand 146 states and 150 transitions. Second operand 6 states. [2020-09-24 18:30:06,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:06,646 INFO L93 Difference]: Finished difference Result 267 states and 275 transitions. [2020-09-24 18:30:06,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:30:06,646 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2020-09-24 18:30:06,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:06,648 INFO L225 Difference]: With dead ends: 267 [2020-09-24 18:30:06,649 INFO L226 Difference]: Without dead ends: 265 [2020-09-24 18:30:06,649 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-09-24 18:30:06,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-09-24 18:30:06,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 144. [2020-09-24 18:30:06,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-09-24 18:30:06,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 148 transitions. [2020-09-24 18:30:06,657 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 148 transitions. Word has length 45 [2020-09-24 18:30:06,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:06,657 INFO L479 AbstractCegarLoop]: Abstraction has 144 states and 148 transitions. [2020-09-24 18:30:06,658 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:30:06,658 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 148 transitions. [2020-09-24 18:30:06,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-24 18:30:06,659 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:06,659 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:30:06,660 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 18:30:06,660 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:06,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:06,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1678067487, now seen corresponding path program 1 times [2020-09-24 18:30:06,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:06,661 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2121004584] [2020-09-24 18:30:06,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:06,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:06,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:06,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:06,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:06,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:07,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:07,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-24 18:30:07,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:30:07,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 384 [2020-09-24 18:30:07,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:07,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:30:07,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-24 18:30:07,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 18:30:07,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:07,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:07,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:07,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:07,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:07,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:30:07,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:07,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:30:07,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:07,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:07,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:07,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:07,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:30:07,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:30:07,140 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2121004584] [2020-09-24 18:30:07,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:07,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:30:07,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084586829] [2020-09-24 18:30:07,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:30:07,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:07,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:30:07,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:30:07,155 INFO L87 Difference]: Start difference. First operand 144 states and 148 transitions. Second operand 6 states. [2020-09-24 18:30:07,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:07,490 INFO L93 Difference]: Finished difference Result 194 states and 202 transitions. [2020-09-24 18:30:07,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 18:30:07,491 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2020-09-24 18:30:07,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:07,493 INFO L225 Difference]: With dead ends: 194 [2020-09-24 18:30:07,493 INFO L226 Difference]: Without dead ends: 192 [2020-09-24 18:30:07,494 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:30:07,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-09-24 18:30:07,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 142. [2020-09-24 18:30:07,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-09-24 18:30:07,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 146 transitions. [2020-09-24 18:30:07,503 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 146 transitions. Word has length 45 [2020-09-24 18:30:07,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:07,504 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 146 transitions. [2020-09-24 18:30:07,504 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:30:07,504 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 146 transitions. [2020-09-24 18:30:07,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-24 18:30:07,510 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:07,511 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:30:07,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 18:30:07,512 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:07,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:07,512 INFO L82 PathProgramCache]: Analyzing trace with hash 776869197, now seen corresponding path program 1 times [2020-09-24 18:30:07,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:07,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [527385708] [2020-09-24 18:30:07,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:07,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:07,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:07,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:07,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:07,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-24 18:30:07,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:30:07,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-24 18:30:07,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:07,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:30:07,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-24 18:30:07,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 18:30:07,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:07,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:07,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:07,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:07,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:07,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:30:07,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:07,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:30:07,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:07,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:07,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:07,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:07,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:07,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:30:07,826 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [527385708] [2020-09-24 18:30:07,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:07,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:30:07,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434856156] [2020-09-24 18:30:07,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:30:07,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:07,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:30:07,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:30:07,828 INFO L87 Difference]: Start difference. First operand 142 states and 146 transitions. Second operand 6 states. [2020-09-24 18:30:08,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:08,176 INFO L93 Difference]: Finished difference Result 195 states and 203 transitions. [2020-09-24 18:30:08,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:30:08,176 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2020-09-24 18:30:08,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:08,178 INFO L225 Difference]: With dead ends: 195 [2020-09-24 18:30:08,178 INFO L226 Difference]: Without dead ends: 193 [2020-09-24 18:30:08,179 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-09-24 18:30:08,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-09-24 18:30:08,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 140. [2020-09-24 18:30:08,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-09-24 18:30:08,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 144 transitions. [2020-09-24 18:30:08,187 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 144 transitions. Word has length 50 [2020-09-24 18:30:08,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:08,187 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 144 transitions. [2020-09-24 18:30:08,187 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:30:08,187 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 144 transitions. [2020-09-24 18:30:08,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-24 18:30:08,188 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:08,189 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:30:08,189 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 18:30:08,189 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:08,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:08,190 INFO L82 PathProgramCache]: Analyzing trace with hash -828388948, now seen corresponding path program 1 times [2020-09-24 18:30:08,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:08,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [337978625] [2020-09-24 18:30:08,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:08,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:08,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:08,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:08,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-24 18:30:08,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:08,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-24 18:30:08,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:08,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:30:08,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 18:30:08,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-24 18:30:08,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:08,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:08,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:08,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:08,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:08,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:30:08,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:08,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:30:08,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:08,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:08,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:08,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:08,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:30:08,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:30:08,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [337978625] [2020-09-24 18:30:08,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:08,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 18:30:08,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216311237] [2020-09-24 18:30:08,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 18:30:08,419 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:08,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 18:30:08,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:30:08,420 INFO L87 Difference]: Start difference. First operand 140 states and 144 transitions. Second operand 7 states. [2020-09-24 18:30:08,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:08,805 INFO L93 Difference]: Finished difference Result 198 states and 206 transitions. [2020-09-24 18:30:08,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 18:30:08,806 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 55 [2020-09-24 18:30:08,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:08,808 INFO L225 Difference]: With dead ends: 198 [2020-09-24 18:30:08,808 INFO L226 Difference]: Without dead ends: 196 [2020-09-24 18:30:08,809 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2020-09-24 18:30:08,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-09-24 18:30:08,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 138. [2020-09-24 18:30:08,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-09-24 18:30:08,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 142 transitions. [2020-09-24 18:30:08,816 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 142 transitions. Word has length 55 [2020-09-24 18:30:08,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:08,817 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 142 transitions. [2020-09-24 18:30:08,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 18:30:08,817 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 142 transitions. [2020-09-24 18:30:08,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-24 18:30:08,818 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:08,818 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:30:08,818 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 18:30:08,819 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:08,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:08,819 INFO L82 PathProgramCache]: Analyzing trace with hash -2080692744, now seen corresponding path program 1 times [2020-09-24 18:30:08,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:08,820 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [405491164] [2020-09-24 18:30:08,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:08,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:08,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:08,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:08,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 18:30:08,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:08,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-24 18:30:08,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:08,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:30:08,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-24 18:30:08,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-24 18:30:08,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:08,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:08,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:08,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:08,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:08,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:30:08,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:08,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:30:08,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:08,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:08,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:08,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:08,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:30:09,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:30:09,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [405491164] [2020-09-24 18:30:09,006 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:09,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:30:09,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631285354] [2020-09-24 18:30:09,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:30:09,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:09,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:30:09,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:30:09,008 INFO L87 Difference]: Start difference. First operand 138 states and 142 transitions. Second operand 6 states. [2020-09-24 18:30:09,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:09,316 INFO L93 Difference]: Finished difference Result 203 states and 211 transitions. [2020-09-24 18:30:09,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:30:09,317 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2020-09-24 18:30:09,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:09,318 INFO L225 Difference]: With dead ends: 203 [2020-09-24 18:30:09,318 INFO L226 Difference]: Without dead ends: 201 [2020-09-24 18:30:09,319 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-09-24 18:30:09,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-09-24 18:30:09,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 136. [2020-09-24 18:30:09,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-09-24 18:30:09,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 140 transitions. [2020-09-24 18:30:09,327 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 140 transitions. Word has length 60 [2020-09-24 18:30:09,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:09,328 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 140 transitions. [2020-09-24 18:30:09,328 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:30:09,328 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 140 transitions. [2020-09-24 18:30:09,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-24 18:30:09,329 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:09,329 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:30:09,330 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 18:30:09,330 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:09,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:09,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1555133305, now seen corresponding path program 1 times [2020-09-24 18:30:09,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:09,331 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1175381010] [2020-09-24 18:30:09,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:09,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:09,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:09,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:09,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:09,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 18:30:09,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:30:09,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 376 [2020-09-24 18:30:09,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:09,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:30:09,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-24 18:30:09,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-24 18:30:09,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:09,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:09,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:09,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:09,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:09,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:30:09,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:09,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:30:09,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:09,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:09,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:09,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:09,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:09,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:30:09,792 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1175381010] [2020-09-24 18:30:09,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:09,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 18:30:09,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452867129] [2020-09-24 18:30:09,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 18:30:09,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:09,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 18:30:09,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:30:09,795 INFO L87 Difference]: Start difference. First operand 136 states and 140 transitions. Second operand 7 states. [2020-09-24 18:30:10,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:10,365 INFO L93 Difference]: Finished difference Result 375 states and 390 transitions. [2020-09-24 18:30:10,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 18:30:10,366 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-09-24 18:30:10,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:10,368 INFO L225 Difference]: With dead ends: 375 [2020-09-24 18:30:10,368 INFO L226 Difference]: Without dead ends: 258 [2020-09-24 18:30:10,369 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-09-24 18:30:10,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2020-09-24 18:30:10,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 158. [2020-09-24 18:30:10,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-09-24 18:30:10,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 162 transitions. [2020-09-24 18:30:10,382 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 162 transitions. Word has length 69 [2020-09-24 18:30:10,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:10,382 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 162 transitions. [2020-09-24 18:30:10,382 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 18:30:10,382 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 162 transitions. [2020-09-24 18:30:10,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-24 18:30:10,383 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:10,383 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:30:10,384 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 18:30:10,384 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:10,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:10,384 INFO L82 PathProgramCache]: Analyzing trace with hash -623432219, now seen corresponding path program 1 times [2020-09-24 18:30:10,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:10,385 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [622109936] [2020-09-24 18:30:10,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:10,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:10,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:10,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:10,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:11,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:11,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 18:30:11,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:30:11,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 868 [2020-09-24 18:30:11,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:11,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:30:11,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-24 18:30:11,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-24 18:30:11,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:11,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:11,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:11,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:11,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:11,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:30:11,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:11,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:30:11,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:11,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:11,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:11,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:11,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:11,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:30:11,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [622109936] [2020-09-24 18:30:11,332 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:11,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 18:30:11,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668252529] [2020-09-24 18:30:11,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 18:30:11,333 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:11,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 18:30:11,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:30:11,334 INFO L87 Difference]: Start difference. First operand 158 states and 162 transitions. Second operand 7 states. [2020-09-24 18:30:11,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:11,827 INFO L93 Difference]: Finished difference Result 351 states and 362 transitions. [2020-09-24 18:30:11,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 18:30:11,827 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2020-09-24 18:30:11,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:11,829 INFO L225 Difference]: With dead ends: 351 [2020-09-24 18:30:11,830 INFO L226 Difference]: Without dead ends: 349 [2020-09-24 18:30:11,830 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-09-24 18:30:11,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2020-09-24 18:30:11,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 156. [2020-09-24 18:30:11,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-09-24 18:30:11,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 160 transitions. [2020-09-24 18:30:11,840 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 160 transitions. Word has length 74 [2020-09-24 18:30:11,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:11,840 INFO L479 AbstractCegarLoop]: Abstraction has 156 states and 160 transitions. [2020-09-24 18:30:11,840 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 18:30:11,841 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 160 transitions. [2020-09-24 18:30:11,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-24 18:30:11,847 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:11,847 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:30:11,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 18:30:11,847 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:11,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:11,848 INFO L82 PathProgramCache]: Analyzing trace with hash -1977531324, now seen corresponding path program 1 times [2020-09-24 18:30:11,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:11,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1795943000] [2020-09-24 18:30:11,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:11,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:11,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:12,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:12,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:30:12,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:12,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-09-24 18:30:12,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:12,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:30:12,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 18:30:12,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-24 18:30:12,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 18:30:12,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:12,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:12,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:12,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:12,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:30:12,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:12,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:30:12,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:12,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:12,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:12,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:12,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:12,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:30:12,176 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1795943000] [2020-09-24 18:30:12,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:12,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 18:30:12,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880771125] [2020-09-24 18:30:12,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 18:30:12,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:12,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 18:30:12,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 18:30:12,179 INFO L87 Difference]: Start difference. First operand 156 states and 160 transitions. Second operand 8 states. [2020-09-24 18:30:12,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:12,783 INFO L93 Difference]: Finished difference Result 271 states and 282 transitions. [2020-09-24 18:30:12,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 18:30:12,783 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2020-09-24 18:30:12,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:12,785 INFO L225 Difference]: With dead ends: 271 [2020-09-24 18:30:12,785 INFO L226 Difference]: Without dead ends: 269 [2020-09-24 18:30:12,786 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2020-09-24 18:30:12,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-09-24 18:30:12,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 154. [2020-09-24 18:30:12,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-09-24 18:30:12,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 158 transitions. [2020-09-24 18:30:12,798 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 158 transitions. Word has length 79 [2020-09-24 18:30:12,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:12,799 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 158 transitions. [2020-09-24 18:30:12,799 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 18:30:12,799 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 158 transitions. [2020-09-24 18:30:12,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-09-24 18:30:12,800 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:12,800 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:30:12,800 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 18:30:12,801 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:12,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:12,801 INFO L82 PathProgramCache]: Analyzing trace with hash 108101264, now seen corresponding path program 1 times [2020-09-24 18:30:12,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:12,802 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [593894060] [2020-09-24 18:30:12,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:12,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:12,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:12,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:13,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:13,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 18:30:13,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:30:13,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 499 [2020-09-24 18:30:13,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:13,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:30:13,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-24 18:30:13,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-24 18:30:13,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:13,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:13,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:13,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:13,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:13,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:30:13,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:13,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:30:13,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:13,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:13,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:13,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:13,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:13,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:30:13,406 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [593894060] [2020-09-24 18:30:13,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:13,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 18:30:13,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872993478] [2020-09-24 18:30:13,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 18:30:13,407 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:13,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 18:30:13,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:30:13,408 INFO L87 Difference]: Start difference. First operand 154 states and 158 transitions. Second operand 7 states. [2020-09-24 18:30:14,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:14,111 INFO L93 Difference]: Finished difference Result 439 states and 453 transitions. [2020-09-24 18:30:14,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 18:30:14,112 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 84 [2020-09-24 18:30:14,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:14,114 INFO L225 Difference]: With dead ends: 439 [2020-09-24 18:30:14,114 INFO L226 Difference]: Without dead ends: 437 [2020-09-24 18:30:14,115 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2020-09-24 18:30:14,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2020-09-24 18:30:14,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 152. [2020-09-24 18:30:14,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-09-24 18:30:14,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 156 transitions. [2020-09-24 18:30:14,126 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 156 transitions. Word has length 84 [2020-09-24 18:30:14,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:14,126 INFO L479 AbstractCegarLoop]: Abstraction has 152 states and 156 transitions. [2020-09-24 18:30:14,127 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 18:30:14,127 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 156 transitions. [2020-09-24 18:30:14,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-09-24 18:30:14,128 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:14,128 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:30:14,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 18:30:14,128 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:14,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:14,129 INFO L82 PathProgramCache]: Analyzing trace with hash 274017809, now seen corresponding path program 1 times [2020-09-24 18:30:14,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:14,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1293377099] [2020-09-24 18:30:14,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:14,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:14,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:14,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:14,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 18:30:14,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:14,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-09-24 18:30:14,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:14,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 18:30:14,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 18:30:14,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 18:30:14,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:14,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:14,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:14,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:14,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:14,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:30:14,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:14,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:30:14,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:14,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:14,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:14,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:14,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:14,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:30:14,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1293377099] [2020-09-24 18:30:14,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:14,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 18:30:14,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317797460] [2020-09-24 18:30:14,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 18:30:14,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:14,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 18:30:14,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-24 18:30:14,491 INFO L87 Difference]: Start difference. First operand 152 states and 156 transitions. Second operand 9 states. [2020-09-24 18:30:15,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:15,128 INFO L93 Difference]: Finished difference Result 281 states and 292 transitions. [2020-09-24 18:30:15,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 18:30:15,129 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2020-09-24 18:30:15,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:15,131 INFO L225 Difference]: With dead ends: 281 [2020-09-24 18:30:15,132 INFO L226 Difference]: Without dead ends: 279 [2020-09-24 18:30:15,133 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2020-09-24 18:30:15,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-09-24 18:30:15,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 150. [2020-09-24 18:30:15,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-09-24 18:30:15,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 154 transitions. [2020-09-24 18:30:15,142 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 154 transitions. Word has length 93 [2020-09-24 18:30:15,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:15,143 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 154 transitions. [2020-09-24 18:30:15,143 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 18:30:15,143 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 154 transitions. [2020-09-24 18:30:15,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-09-24 18:30:15,144 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:15,144 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:30:15,144 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-24 18:30:15,145 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:15,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:15,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1620264573, now seen corresponding path program 1 times [2020-09-24 18:30:15,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:15,146 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1069026736] [2020-09-24 18:30:15,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:15,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:15,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:15,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:15,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:16,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:16,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-09-24 18:30:16,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:30:16,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1210 [2020-09-24 18:30:16,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:16,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:30:16,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-24 18:30:16,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 18:30:16,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:16,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:16,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:16,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:16,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:16,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:30:16,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:16,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:30:16,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:16,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:16,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:16,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:16,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:16,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:30:16,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1069026736] [2020-09-24 18:30:16,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:16,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 18:30:16,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385629909] [2020-09-24 18:30:16,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 18:30:16,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:16,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 18:30:16,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 18:30:16,461 INFO L87 Difference]: Start difference. First operand 150 states and 154 transitions. Second operand 8 states. [2020-09-24 18:30:17,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:17,699 INFO L93 Difference]: Finished difference Result 679 states and 701 transitions. [2020-09-24 18:30:17,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 18:30:17,700 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 98 [2020-09-24 18:30:17,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:17,701 INFO L225 Difference]: With dead ends: 679 [2020-09-24 18:30:17,701 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 18:30:17,703 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=154, Unknown=0, NotChecked=0, Total=240 [2020-09-24 18:30:17,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 18:30:17,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 18:30:17,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 18:30:17,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 18:30:17,707 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 98 [2020-09-24 18:30:17,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:17,710 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 18:30:17,711 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 18:30:17,711 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 18:30:17,711 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 18:30:17,711 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-24 18:30:17,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 18:30:18,815 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 215 DAG size of output: 118 [2020-09-24 18:30:19,342 WARN L193 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 87 [2020-09-24 18:30:19,701 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 43 [2020-09-24 18:30:20,054 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 41 [2020-09-24 18:30:20,259 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 22 [2020-09-24 18:30:20,324 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-24 18:30:20,324 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-24 18:30:20,325 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__return_334~0 |old(~__return_334~0)|) (= ~__return_main~0 |old(~__return_main~0)|)) [2020-09-24 18:30:20,325 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 18:30:20,325 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 18:30:20,325 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 18:30:20,325 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 18:30:20,325 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 18:30:20,325 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-09-24 18:30:20,325 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-24 18:30:20,325 INFO L268 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2020-09-24 18:30:20,326 INFO L268 CegarLoopResult]: For program point L5-3(lines 4 6) no Hoare annotation was computed. [2020-09-24 18:30:20,326 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-09-24 18:30:20,326 INFO L268 CegarLoopResult]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 86) no Hoare annotation was computed. [2020-09-24 18:30:20,326 INFO L268 CegarLoopResult]: For program point L250(line 250) no Hoare annotation was computed. [2020-09-24 18:30:20,326 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 311) no Hoare annotation was computed. [2020-09-24 18:30:20,326 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-09-24 18:30:20,326 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-09-24 18:30:20,327 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-24 18:30:20,328 INFO L268 CegarLoopResult]: For program point L234(line 234) no Hoare annotation was computed. [2020-09-24 18:30:20,328 INFO L268 CegarLoopResult]: For program point L201(lines 201 271) no Hoare annotation was computed. [2020-09-24 18:30:20,328 INFO L268 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-09-24 18:30:20,329 INFO L268 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-09-24 18:30:20,329 INFO L268 CegarLoopResult]: For program point L36(lines 36 292) no Hoare annotation was computed. [2020-09-24 18:30:20,329 INFO L268 CegarLoopResult]: For program point L251(line 251) no Hoare annotation was computed. [2020-09-24 18:30:20,329 INFO L268 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-09-24 18:30:20,329 INFO L268 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-09-24 18:30:20,329 INFO L268 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-09-24 18:30:20,329 INFO L268 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-09-24 18:30:20,329 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-24 18:30:20,330 INFO L268 CegarLoopResult]: For program point mainErr14ASSERT_VIOLATIONERROR_FUNCTION(line 243) no Hoare annotation was computed. [2020-09-24 18:30:20,330 INFO L268 CegarLoopResult]: For program point L235(line 235) no Hoare annotation was computed. [2020-09-24 18:30:20,330 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-09-24 18:30:20,330 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-09-24 18:30:20,330 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-09-24 18:30:20,330 INFO L268 CegarLoopResult]: For program point L252(line 252) no Hoare annotation was computed. [2020-09-24 18:30:20,330 INFO L268 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-09-24 18:30:20,331 INFO L268 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-09-24 18:30:20,331 INFO L268 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-09-24 18:30:20,331 INFO L264 CegarLoopResult]: At program point L302(lines 23 310) the Hoare annotation is: (and (<= 0 main_~main__i~0) (= |old(~__return_334~0)| ~__return_334~0) (<= (+ main_~main__limit~0 4) main_~main__bufsize~0)) [2020-09-24 18:30:20,331 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 11 311) no Hoare annotation was computed. [2020-09-24 18:30:20,331 INFO L268 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-09-24 18:30:20,331 INFO L268 CegarLoopResult]: For program point mainErr13ASSERT_VIOLATIONERROR_FUNCTION(line 227) no Hoare annotation was computed. [2020-09-24 18:30:20,332 INFO L268 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-09-24 18:30:20,332 INFO L268 CegarLoopResult]: For program point L137(lines 137 281) no Hoare annotation was computed. [2020-09-24 18:30:20,333 INFO L268 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-09-24 18:30:20,333 INFO L268 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-09-24 18:30:20,333 INFO L268 CegarLoopResult]: For program point L253(lines 253 263) no Hoare annotation was computed. [2020-09-24 18:30:20,333 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-09-24 18:30:20,333 INFO L268 CegarLoopResult]: For program point L55(lines 55 284) no Hoare annotation was computed. [2020-09-24 18:30:20,334 INFO L268 CegarLoopResult]: For program point L237(line 237) no Hoare annotation was computed. [2020-09-24 18:30:20,334 INFO L268 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-09-24 18:30:20,335 INFO L268 CegarLoopResult]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 163) no Hoare annotation was computed. [2020-09-24 18:30:20,335 INFO L268 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-09-24 18:30:20,338 INFO L268 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-09-24 18:30:20,338 INFO L268 CegarLoopResult]: For program point L72(lines 72 127) no Hoare annotation was computed. [2020-09-24 18:30:20,338 INFO L268 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-09-24 18:30:20,338 INFO L268 CegarLoopResult]: For program point L221(line 221) no Hoare annotation was computed. [2020-09-24 18:30:20,338 INFO L268 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-09-24 18:30:20,338 INFO L268 CegarLoopResult]: For program point L238(line 238) no Hoare annotation was computed. [2020-09-24 18:30:20,339 INFO L268 CegarLoopResult]: For program point mainErr15ASSERT_VIOLATIONERROR_FUNCTION(line 255) no Hoare annotation was computed. [2020-09-24 18:30:20,339 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-09-24 18:30:20,339 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-09-24 18:30:20,339 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-09-24 18:30:20,339 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-24 18:30:20,339 INFO L268 CegarLoopResult]: For program point L255(line 255) no Hoare annotation was computed. [2020-09-24 18:30:20,339 INFO L268 CegarLoopResult]: For program point L222(line 222) no Hoare annotation was computed. [2020-09-24 18:30:20,339 INFO L268 CegarLoopResult]: For program point L189(lines 189 273) no Hoare annotation was computed. [2020-09-24 18:30:20,340 INFO L268 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-09-24 18:30:20,340 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-24 18:30:20,340 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-09-24 18:30:20,340 INFO L268 CegarLoopResult]: For program point L24-2(line 24) no Hoare annotation was computed. [2020-09-24 18:30:20,340 INFO L268 CegarLoopResult]: For program point L239(line 239) no Hoare annotation was computed. [2020-09-24 18:30:20,340 INFO L268 CegarLoopResult]: For program point L173(lines 173 275) no Hoare annotation was computed. [2020-09-24 18:30:20,340 INFO L268 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-09-24 18:30:20,340 INFO L268 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-09-24 18:30:20,340 INFO L268 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-09-24 18:30:20,341 INFO L268 CegarLoopResult]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 191) no Hoare annotation was computed. [2020-09-24 18:30:20,343 INFO L268 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-09-24 18:30:20,344 INFO L268 CegarLoopResult]: For program point L256(line 256) no Hoare annotation was computed. [2020-09-24 18:30:20,344 INFO L268 CegarLoopResult]: For program point L223(line 223) no Hoare annotation was computed. [2020-09-24 18:30:20,345 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-09-24 18:30:20,345 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-09-24 18:30:20,345 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-24 18:30:20,345 INFO L268 CegarLoopResult]: For program point L240(line 240) no Hoare annotation was computed. [2020-09-24 18:30:20,346 INFO L268 CegarLoopResult]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 175) no Hoare annotation was computed. [2020-09-24 18:30:20,346 INFO L268 CegarLoopResult]: For program point L108(lines 108 121) no Hoare annotation was computed. [2020-09-24 18:30:20,346 INFO L268 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-09-24 18:30:20,346 INFO L268 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-09-24 18:30:20,346 INFO L268 CegarLoopResult]: For program point L224(line 224) no Hoare annotation was computed. [2020-09-24 18:30:20,346 INFO L268 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-09-24 18:30:20,346 INFO L268 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-09-24 18:30:20,347 INFO L268 CegarLoopResult]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 98) no Hoare annotation was computed. [2020-09-24 18:30:20,347 INFO L268 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-09-24 18:30:20,347 INFO L268 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-09-24 18:30:20,348 INFO L268 CegarLoopResult]: For program point L307(line 307) no Hoare annotation was computed. [2020-09-24 18:30:20,348 INFO L268 CegarLoopResult]: For program point L241(lines 241 265) no Hoare annotation was computed. [2020-09-24 18:30:20,348 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-09-24 18:30:20,348 INFO L268 CegarLoopResult]: For program point L43(lines 43 286) no Hoare annotation was computed. [2020-09-24 18:30:20,349 INFO L264 CegarLoopResult]: At program point L291(lines 36 292) the Hoare annotation is: (and (<= 0 main_~main__i~0) (<= 0 main_~main__j~0) (<= (+ main_~main__j~0 5) main_~main__bufsize~0) (= |old(~__return_334~0)| ~__return_334~0) (<= (+ main_~main__i~0 1) main_~main__len~0) (<= (+ main_~main__limit~0 4) main_~main__bufsize~0)) [2020-09-24 18:30:20,349 INFO L268 CegarLoopResult]: For program point L225(lines 225 267) no Hoare annotation was computed. [2020-09-24 18:30:20,349 INFO L268 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-09-24 18:30:20,349 INFO L268 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-09-24 18:30:20,349 INFO L268 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-09-24 18:30:20,349 INFO L268 CegarLoopResult]: For program point L308(line 308) no Hoare annotation was computed. [2020-09-24 18:30:20,349 INFO L268 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-09-24 18:30:20,349 INFO L268 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-09-24 18:30:20,350 INFO L268 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-09-24 18:30:20,350 INFO L268 CegarLoopResult]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 203) no Hoare annotation was computed. [2020-09-24 18:30:20,350 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-09-24 18:30:20,350 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-09-24 18:30:20,350 INFO L268 CegarLoopResult]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 139) no Hoare annotation was computed. [2020-09-24 18:30:20,350 INFO L268 CegarLoopResult]: For program point L243(line 243) no Hoare annotation was computed. [2020-09-24 18:30:20,350 INFO L268 CegarLoopResult]: For program point L210(line 210) no Hoare annotation was computed. [2020-09-24 18:30:20,350 INFO L268 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-09-24 18:30:20,351 INFO L268 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-09-24 18:30:20,351 INFO L268 CegarLoopResult]: For program point L260(line 260) no Hoare annotation was computed. [2020-09-24 18:30:20,351 INFO L268 CegarLoopResult]: For program point L227(line 227) no Hoare annotation was computed. [2020-09-24 18:30:20,352 INFO L268 CegarLoopResult]: For program point L161(lines 161 277) no Hoare annotation was computed. [2020-09-24 18:30:20,352 INFO L268 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-09-24 18:30:20,352 INFO L268 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-09-24 18:30:20,352 INFO L268 CegarLoopResult]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 110) no Hoare annotation was computed. [2020-09-24 18:30:20,352 INFO L268 CegarLoopResult]: For program point L244(line 244) no Hoare annotation was computed. [2020-09-24 18:30:20,352 INFO L268 CegarLoopResult]: For program point L211(line 211) no Hoare annotation was computed. [2020-09-24 18:30:20,352 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-09-24 18:30:20,352 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-24 18:30:20,352 INFO L268 CegarLoopResult]: For program point L261(line 261) no Hoare annotation was computed. [2020-09-24 18:30:20,353 INFO L268 CegarLoopResult]: For program point L228(line 228) no Hoare annotation was computed. [2020-09-24 18:30:20,353 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 45) no Hoare annotation was computed. [2020-09-24 18:30:20,353 INFO L268 CegarLoopResult]: For program point L96(lines 96 123) no Hoare annotation was computed. [2020-09-24 18:30:20,353 INFO L268 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-09-24 18:30:20,353 INFO L268 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-09-24 18:30:20,353 INFO L268 CegarLoopResult]: For program point L63-1(line 63) no Hoare annotation was computed. [2020-09-24 18:30:20,353 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 11 311) the Hoare annotation is: (= |old(~__return_334~0)| ~__return_334~0) [2020-09-24 18:30:20,354 INFO L268 CegarLoopResult]: For program point L63-2(line 63) no Hoare annotation was computed. [2020-09-24 18:30:20,354 INFO L268 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-09-24 18:30:20,354 INFO L268 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-09-24 18:30:20,354 INFO L268 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-09-24 18:30:20,354 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-24 18:30:20,354 INFO L264 CegarLoopResult]: At program point L262(lines 29 304) the Hoare annotation is: (let ((.cse5 (<= (+ main_~main__j~0 4) main_~main__bufsize~0)) (.cse0 (<= 0 main_~main__i~0)) (.cse1 (<= 0 main_~main__j~0)) (.cse2 (= |old(~__return_334~0)| ~__return_334~0))) (let ((.cse4 (<= 1 main_~main__j~0)) (.cse6 (let ((.cse7 (<= 1 main_~main__i~0))) (or (and .cse0 .cse1 .cse7 .cse5 .cse2) (and .cse0 .cse1 .cse7 (<= 1 main_~__tmp_13~0) .cse2 (<= 1 main_~__VERIFIER_assert__cond~12))))) (.cse3 (<= (+ main_~main__limit~0 4) main_~main__bufsize~0))) (or (and .cse0 .cse1 .cse2 (<= (+ main_~main__i~0 1) main_~main__len~0) .cse3) (and .cse4 .cse5 .cse6 .cse3) (and .cse4 (<= 1 main_~__VERIFIER_assert__cond~14) .cse6 (<= 1 main_~__tmp_15~0) .cse3)))) [2020-09-24 18:30:20,354 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-09-24 18:30:20,354 INFO L268 CegarLoopResult]: For program point L64(lines 64 283) no Hoare annotation was computed. [2020-09-24 18:30:20,355 INFO L268 CegarLoopResult]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 151) no Hoare annotation was computed. [2020-09-24 18:30:20,355 INFO L268 CegarLoopResult]: For program point L213(lines 213 269) no Hoare annotation was computed. [2020-09-24 18:30:20,355 INFO L268 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-09-24 18:30:20,355 INFO L268 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-09-24 18:30:20,355 INFO L268 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-09-24 18:30:20,355 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-24 18:30:20,355 INFO L268 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-09-24 18:30:20,355 INFO L268 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-09-24 18:30:20,356 INFO L268 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-09-24 18:30:20,356 INFO L268 CegarLoopResult]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 74) no Hoare annotation was computed. [2020-09-24 18:30:20,356 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-09-24 18:30:20,356 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-09-24 18:30:20,356 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-09-24 18:30:20,356 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-09-24 18:30:20,356 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-24 18:30:20,356 INFO L268 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-09-24 18:30:20,356 INFO L268 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-09-24 18:30:20,357 INFO L268 CegarLoopResult]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 57) no Hoare annotation was computed. [2020-09-24 18:30:20,357 INFO L268 CegarLoopResult]: For program point L215(line 215) no Hoare annotation was computed. [2020-09-24 18:30:20,357 INFO L268 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-09-24 18:30:20,357 INFO L268 CegarLoopResult]: For program point L149(lines 149 279) no Hoare annotation was computed. [2020-09-24 18:30:20,357 INFO L268 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-09-24 18:30:20,357 INFO L268 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-09-24 18:30:20,357 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-24 18:30:20,357 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-09-24 18:30:20,358 INFO L268 CegarLoopResult]: For program point L17-2(line 17) no Hoare annotation was computed. [2020-09-24 18:30:20,358 INFO L268 CegarLoopResult]: For program point L232(line 232) no Hoare annotation was computed. [2020-09-24 18:30:20,358 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-09-24 18:30:20,358 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-09-24 18:30:20,358 INFO L268 CegarLoopResult]: For program point L34(lines 34 298) no Hoare annotation was computed. [2020-09-24 18:30:20,358 INFO L268 CegarLoopResult]: For program point L249(line 249) no Hoare annotation was computed. [2020-09-24 18:30:20,358 INFO L268 CegarLoopResult]: For program point L216(line 216) no Hoare annotation was computed. [2020-09-24 18:30:20,358 INFO L268 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-09-24 18:30:20,358 INFO L268 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-09-24 18:30:20,359 INFO L268 CegarLoopResult]: For program point L84(lines 84 125) no Hoare annotation was computed. [2020-09-24 18:30:20,359 INFO L268 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-09-24 18:30:20,359 INFO L268 CegarLoopResult]: For program point L18(lines 18 310) no Hoare annotation was computed. [2020-09-24 18:30:20,359 INFO L268 CegarLoopResult]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 215) no Hoare annotation was computed. [2020-09-24 18:30:20,359 INFO L268 CegarLoopResult]: For program point L233(line 233) no Hoare annotation was computed. [2020-09-24 18:30:20,359 INFO L268 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-09-24 18:30:20,359 INFO L268 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-09-24 18:30:20,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 06:30:20 BoogieIcfgContainer [2020-09-24 18:30:20,407 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 18:30:20,411 INFO L168 Benchmark]: Toolchain (without parser) took 19976.63 ms. Allocated memory was 143.1 MB in the beginning and 362.8 MB in the end (delta: 219.7 MB). Free memory was 105.6 MB in the beginning and 199.1 MB in the end (delta: -93.5 MB). Peak memory consumption was 226.6 MB. Max. memory is 7.1 GB. [2020-09-24 18:30:20,412 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 143.1 MB. Free memory was 123.7 MB in the beginning and 123.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 18:30:20,412 INFO L168 Benchmark]: CACSL2BoogieTranslator took 454.49 ms. Allocated memory is still 143.1 MB. Free memory was 105.0 MB in the beginning and 92.8 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2020-09-24 18:30:20,417 INFO L168 Benchmark]: Boogie Preprocessor took 137.35 ms. Allocated memory was 143.1 MB in the beginning and 203.9 MB in the end (delta: 60.8 MB). Free memory was 92.8 MB in the beginning and 181.4 MB in the end (delta: -88.6 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2020-09-24 18:30:20,418 INFO L168 Benchmark]: RCFGBuilder took 685.99 ms. Allocated memory is still 203.9 MB. Free memory was 181.4 MB in the beginning and 150.3 MB in the end (delta: 31.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 7.1 GB. [2020-09-24 18:30:20,422 INFO L168 Benchmark]: TraceAbstraction took 18685.99 ms. Allocated memory was 203.9 MB in the beginning and 362.8 MB in the end (delta: 158.9 MB). Free memory was 149.7 MB in the beginning and 199.1 MB in the end (delta: -49.4 MB). Peak memory consumption was 209.9 MB. Max. memory is 7.1 GB. [2020-09-24 18:30:20,430 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 143.1 MB. Free memory was 123.7 MB in the beginning and 123.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 454.49 ms. Allocated memory is still 143.1 MB. Free memory was 105.0 MB in the beginning and 92.8 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 137.35 ms. Allocated memory was 143.1 MB in the beginning and 203.9 MB in the end (delta: 60.8 MB). Free memory was 92.8 MB in the beginning and 181.4 MB in the end (delta: -88.6 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 685.99 ms. Allocated memory is still 203.9 MB. Free memory was 181.4 MB in the beginning and 150.3 MB in the end (delta: 31.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18685.99 ms. Allocated memory was 203.9 MB in the beginning and 362.8 MB in the end (delta: 158.9 MB). Free memory was 149.7 MB in the beginning and 199.1 MB in the end (delta: -49.4 MB). Peak memory consumption was 209.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 45]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 255]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 151]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 163]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 227]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 175]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 191]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 243]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 215]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 98]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 203]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 74]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 139]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 110]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 86]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 57]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: (((((0 <= main__i && 0 <= main__j) && \old(__return_334) == __return_334) && main__i + 1 <= main__len) && main__limit + 4 <= main__bufsize) || (((1 <= main__j && main__j + 4 <= main__bufsize) && (((((0 <= main__i && 0 <= main__j) && 1 <= main__i) && main__j + 4 <= main__bufsize) && \old(__return_334) == __return_334) || (((((0 <= main__i && 0 <= main__j) && 1 <= main__i) && 1 <= __tmp_13) && \old(__return_334) == __return_334) && 1 <= __VERIFIER_assert__cond))) && main__limit + 4 <= main__bufsize)) || ((((1 <= main__j && 1 <= __VERIFIER_assert__cond) && (((((0 <= main__i && 0 <= main__j) && 1 <= main__i) && main__j + 4 <= main__bufsize) && \old(__return_334) == __return_334) || (((((0 <= main__i && 0 <= main__j) && 1 <= main__i) && 1 <= __tmp_13) && \old(__return_334) == __return_334) && 1 <= __VERIFIER_assert__cond))) && 1 <= __tmp_15) && main__limit + 4 <= main__bufsize) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: ((((0 <= main__i && 0 <= main__j) && main__j + 5 <= main__bufsize) && \old(__return_334) == __return_334) && main__i + 1 <= main__len) && main__limit + 4 <= main__bufsize - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (0 <= main__i && \old(__return_334) == __return_334) && main__limit + 4 <= main__bufsize - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 183 locations, 16 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.8s, OverallIterations: 16, TraceHistogramMax: 1, AutomataDifference: 8.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3436 SDtfs, 8439 SDslu, 384 SDs, 0 SdLazy, 6016 SolverSat, 233 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 237 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=178occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 1615 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 36 NumberOfFragments, 175 HoareAnnotationTreeSize, 7 FomulaSimplifications, 1327314328 FormulaSimplificationTreeSizeReduction, 1.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 59298 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 922 NumberOfCodeBlocks, 922 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 906 ConstructedInterpolants, 0 QuantifiedInterpolants, 179397 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...