/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 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 17:21:11,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:21:11,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:21:11,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:21:11,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:21:11,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:21:11,141 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:21:11,143 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:21:11,145 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:21:11,146 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:21:11,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:21:11,149 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:21:11,149 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:21:11,150 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:21:11,151 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:21:11,153 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:21:11,154 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:21:11,155 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:21:11,156 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:21:11,158 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:21:11,160 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:21:11,161 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:21:11,162 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:21:11,163 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:21:11,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:21:11,166 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:21:11,166 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:21:11,168 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:21:11,168 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:21:11,169 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 17:21:11,169 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 17:21:11,170 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 17:21:11,171 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 17:21:11,172 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 17:21:11,173 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 17:21:11,174 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 17:21:11,174 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 17:21:11,175 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 17:21:11,175 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:21:11,176 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:21:11,177 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:21:11,178 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 17:21:11,206 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:21:11,206 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:21:11,207 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:21:11,208 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:21:11,208 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:21:11,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:21:11,208 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 17:21:11,209 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:21:11,209 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 17:21:11,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:21:11,209 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:21:11,209 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:21:11,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:21:11,210 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 17:21:11,210 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:21:11,210 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:21:11,210 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:21:11,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:21:11,211 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:21:11,211 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:21:11,211 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:21:11,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:21:11,212 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:21:11,212 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:21:11,212 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:21:11,212 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:21:11,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:21:11,213 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:21:11,213 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:21:11,213 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;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;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;log-additional-information=true; [2020-09-24 17:21:11,698 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:21:11,724 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:21:11,731 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:21:11,733 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:21:11,733 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:21:11,735 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c [2020-09-24 17:21:11,831 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/528f77cb4/e449c2502a1d45d0a7c0e12458a1e193/FLAG5acbff72e [2020-09-24 17:21:12,375 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:21:12,376 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c [2020-09-24 17:21:12,386 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/528f77cb4/e449c2502a1d45d0a7c0e12458a1e193/FLAG5acbff72e [2020-09-24 17:21:12,700 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/528f77cb4/e449c2502a1d45d0a7c0e12458a1e193 [2020-09-24 17:21:12,714 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:21:12,720 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:21:12,721 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:21:12,721 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:21:12,726 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:21:12,727 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:21:12" (1/1) ... [2020-09-24 17:21:12,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@243023c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:21:12, skipping insertion in model container [2020-09-24 17:21:12,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:21:12" (1/1) ... [2020-09-24 17:21:12,741 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:21:12,781 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:21:13,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:21:13,039 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:21:13,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:21:13,122 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:21:13,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:21:13 WrapperNode [2020-09-24 17:21:13,123 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:21:13,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:21:13,124 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:21:13,124 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:21:13,218 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:21:13" (1/1) ... [2020-09-24 17:21:13,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:21:13" (1/1) ... [2020-09-24 17:21:13,226 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:21:13" (1/1) ... [2020-09-24 17:21:13,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:21:13" (1/1) ... [2020-09-24 17:21:13,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:21:13" (1/1) ... [2020-09-24 17:21:13,248 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:21:13" (1/1) ... [2020-09-24 17:21:13,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:21:13" (1/1) ... [2020-09-24 17:21:13,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:21:13,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:21:13,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:21:13,255 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:21:13,256 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:21:13" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:21:13,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:21:13,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:21:13,340 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 17:21:13,340 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:21:13,340 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:21:13,341 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 17:21:13,341 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 17:21:13,341 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 17:21:13,341 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:21:13,341 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:21:13,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:21:13,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:21:13,863 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:21:13,864 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 17:21:13,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:21:13 BoogieIcfgContainer [2020-09-24 17:21:13,874 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:21:13,875 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:21:13,875 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:21:13,879 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:21:13,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:21:12" (1/3) ... [2020-09-24 17:21:13,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aaf6bbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:21:13, skipping insertion in model container [2020-09-24 17:21:13,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:21:13" (2/3) ... [2020-09-24 17:21:13,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aaf6bbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:21:13, skipping insertion in model container [2020-09-24 17:21:13,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:21:13" (3/3) ... [2020-09-24 17:21:13,884 INFO L109 eAbstractionObserver]: Analyzing ICFG SpamAssassin-loop.i.v+cfa-reducer.c [2020-09-24 17:21:13,895 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:21:13,906 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-09-24 17:21:13,929 INFO L251 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-09-24 17:21:13,970 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:21:13,970 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:21:13,970 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:21:13,971 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:21:13,971 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:21:13,971 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:21:13,971 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:21:13,971 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:21:14,004 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states. [2020-09-24 17:21:14,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 17:21:14,014 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:21:14,015 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 17:21:14,016 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 17:21:14,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:21:14,025 INFO L82 PathProgramCache]: Analyzing trace with hash -2057699390, now seen corresponding path program 1 times [2020-09-24 17:21:14,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:21:14,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2058822849] [2020-09-24 17:21:14,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:21:14,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:14,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:14,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:14,752 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:14,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 17:21:14,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:21:14,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 516 [2020-09-24 17:21:14,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:14,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:21:14,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-24 17:21:14,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:21:14,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 17:21:14,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:21:14,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:14,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:14,853 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:14,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:21:14,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:14,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:21:14,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:14,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:21:14,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:21:14,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:21:14,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:14,865 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 17:21:14,866 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2058822849] [2020-09-24 17:21:14,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:21:14,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 17:21:14,870 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976132724] [2020-09-24 17:21:14,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 17:21:14,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:21:14,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 17:21:14,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 17:21:14,895 INFO L87 Difference]: Start difference. First operand 178 states. Second operand 6 states. [2020-09-24 17:21:15,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:21:15,644 INFO L93 Difference]: Finished difference Result 435 states and 497 transitions. [2020-09-24 17:21:15,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 17:21:15,647 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-09-24 17:21:15,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:21:15,664 INFO L225 Difference]: With dead ends: 435 [2020-09-24 17:21:15,664 INFO L226 Difference]: Without dead ends: 264 [2020-09-24 17:21:15,670 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 17:21:15,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-09-24 17:21:15,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 154. [2020-09-24 17:21:15,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-09-24 17:21:15,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 158 transitions. [2020-09-24 17:21:15,741 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 158 transitions. Word has length 30 [2020-09-24 17:21:15,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:21:15,742 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 158 transitions. [2020-09-24 17:21:15,742 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 17:21:15,743 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 158 transitions. [2020-09-24 17:21:15,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 17:21:15,744 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:21:15,744 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 17:21:15,744 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:21:15,745 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 17:21:15,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:21:15,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1575143415, now seen corresponding path program 1 times [2020-09-24 17:21:15,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:21:15,746 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [473772303] [2020-09-24 17:21:15,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:21:15,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:15,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:15,837 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:15,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 17:21:15,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:15,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-24 17:21:15,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:15,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:21:15,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-24 17:21:15,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 17:21:15,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:15,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:21:15,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:15,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:15,887 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:15,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:21:15,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:15,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:21:15,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:15,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:21:15,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:21:15,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:21:15,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:15,893 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 17:21:15,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [473772303] [2020-09-24 17:21:15,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:21:15,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 17:21:15,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189285708] [2020-09-24 17:21:15,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 17:21:15,897 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:21:15,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 17:21:15,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 17:21:15,898 INFO L87 Difference]: Start difference. First operand 154 states and 158 transitions. Second operand 6 states. [2020-09-24 17:21:16,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:21:16,387 INFO L93 Difference]: Finished difference Result 223 states and 230 transitions. [2020-09-24 17:21:16,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 17:21:16,387 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-09-24 17:21:16,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:21:16,390 INFO L225 Difference]: With dead ends: 223 [2020-09-24 17:21:16,390 INFO L226 Difference]: Without dead ends: 221 [2020-09-24 17:21:16,392 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-09-24 17:21:16,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-09-24 17:21:16,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 152. [2020-09-24 17:21:16,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-09-24 17:21:16,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 156 transitions. [2020-09-24 17:21:16,422 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 156 transitions. Word has length 30 [2020-09-24 17:21:16,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:21:16,422 INFO L479 AbstractCegarLoop]: Abstraction has 152 states and 156 transitions. [2020-09-24 17:21:16,422 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 17:21:16,423 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 156 transitions. [2020-09-24 17:21:16,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-24 17:21:16,424 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:21:16,425 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 17:21:16,425 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:21:16,426 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 17:21:16,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:21:16,427 INFO L82 PathProgramCache]: Analyzing trace with hash 949374873, now seen corresponding path program 1 times [2020-09-24 17:21:16,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:21:16,427 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1353618795] [2020-09-24 17:21:16,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:21:16,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:16,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:16,543 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:16,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-24 17:21:16,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:16,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-24 17:21:16,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:16,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:21:16,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-24 17:21:16,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 17:21:16,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:16,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:21:16,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:16,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:16,606 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:16,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:21:16,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:16,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:21:16,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:16,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:21:16,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:21:16,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:21:16,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:21:16,613 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 17:21:16,614 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1353618795] [2020-09-24 17:21:16,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:21:16,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 17:21:16,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475524843] [2020-09-24 17:21:16,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 17:21:16,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:21:16,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 17:21:16,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 17:21:16,618 INFO L87 Difference]: Start difference. First operand 152 states and 156 transitions. Second operand 6 states. [2020-09-24 17:21:16,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:21:16,977 INFO L93 Difference]: Finished difference Result 263 states and 271 transitions. [2020-09-24 17:21:16,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 17:21:16,977 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-09-24 17:21:16,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:21:16,980 INFO L225 Difference]: With dead ends: 263 [2020-09-24 17:21:16,980 INFO L226 Difference]: Without dead ends: 261 [2020-09-24 17:21:16,981 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 17:21:16,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2020-09-24 17:21:16,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 150. [2020-09-24 17:21:16,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-09-24 17:21:16,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 154 transitions. [2020-09-24 17:21:16,993 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 154 transitions. Word has length 35 [2020-09-24 17:21:16,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:21:16,993 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 154 transitions. [2020-09-24 17:21:16,994 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 17:21:16,994 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 154 transitions. [2020-09-24 17:21:16,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-24 17:21:16,995 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:21:16,995 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 17:21:16,995 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 17:21:16,996 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 17:21:16,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:21:16,996 INFO L82 PathProgramCache]: Analyzing trace with hash 386303974, now seen corresponding path program 1 times [2020-09-24 17:21:16,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:21:16,997 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1768068022] [2020-09-24 17:21:16,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:21:17,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:17,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:17,070 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:17,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-24 17:21:17,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:17,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-24 17:21:17,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:17,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:21:17,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-24 17:21:17,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 17:21:17,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:17,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:21:17,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:17,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:17,118 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:17,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:21:17,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:17,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:21:17,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:17,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:21:17,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:21:17,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:21:17,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:17,124 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 17:21:17,125 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1768068022] [2020-09-24 17:21:17,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:21:17,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 17:21:17,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485858939] [2020-09-24 17:21:17,126 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 17:21:17,126 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:21:17,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 17:21:17,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 17:21:17,127 INFO L87 Difference]: Start difference. First operand 150 states and 154 transitions. Second operand 6 states. [2020-09-24 17:21:17,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:21:17,374 INFO L93 Difference]: Finished difference Result 192 states and 199 transitions. [2020-09-24 17:21:17,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 17:21:17,375 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-09-24 17:21:17,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:21:17,378 INFO L225 Difference]: With dead ends: 192 [2020-09-24 17:21:17,378 INFO L226 Difference]: Without dead ends: 190 [2020-09-24 17:21:17,379 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 17:21:17,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-09-24 17:21:17,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 148. [2020-09-24 17:21:17,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-09-24 17:21:17,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 152 transitions. [2020-09-24 17:21:17,392 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 152 transitions. Word has length 35 [2020-09-24 17:21:17,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:21:17,393 INFO L479 AbstractCegarLoop]: Abstraction has 148 states and 152 transitions. [2020-09-24 17:21:17,393 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 17:21:17,393 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 152 transitions. [2020-09-24 17:21:17,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-24 17:21:17,404 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:21:17,405 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 17:21:17,405 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 17:21:17,405 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 17:21:17,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:21:17,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1765112685, now seen corresponding path program 1 times [2020-09-24 17:21:17,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:21:17,406 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [24530713] [2020-09-24 17:21:17,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:21:17,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:17,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:17,512 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:17,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 17:21:17,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:17,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-24 17:21:17,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:17,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:21:17,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 17:21:17,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 17:21:17,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:17,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:21:17,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:17,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:17,567 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:17,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:21:17,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:17,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:21:17,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:17,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:21:17,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:21:17,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:21:17,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:17,573 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 17:21:17,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [24530713] [2020-09-24 17:21:17,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:21:17,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 17:21:17,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661640156] [2020-09-24 17:21:17,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 17:21:17,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:21:17,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 17:21:17,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 17:21:17,576 INFO L87 Difference]: Start difference. First operand 148 states and 152 transitions. Second operand 7 states. [2020-09-24 17:21:18,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:21:18,233 INFO L93 Difference]: Finished difference Result 262 states and 270 transitions. [2020-09-24 17:21:18,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 17:21:18,234 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2020-09-24 17:21:18,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:21:18,236 INFO L225 Difference]: With dead ends: 262 [2020-09-24 17:21:18,236 INFO L226 Difference]: Without dead ends: 260 [2020-09-24 17:21:18,237 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 17:21:18,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-09-24 17:21:18,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 146. [2020-09-24 17:21:18,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-09-24 17:21:18,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 150 transitions. [2020-09-24 17:21:18,246 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 150 transitions. Word has length 40 [2020-09-24 17:21:18,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:21:18,247 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 150 transitions. [2020-09-24 17:21:18,247 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 17:21:18,247 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 150 transitions. [2020-09-24 17:21:18,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-24 17:21:18,248 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:21:18,249 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 17:21:18,249 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 17:21:18,249 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 17:21:18,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:21:18,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1900232348, now seen corresponding path program 1 times [2020-09-24 17:21:18,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:21:18,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1645963436] [2020-09-24 17:21:18,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:21:18,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:18,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:18,347 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:18,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-24 17:21:18,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:18,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-24 17:21:18,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:18,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:21:18,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-24 17:21:18,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 17:21:18,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:18,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:21:18,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:18,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:18,393 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:18,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:21:18,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:18,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:21:18,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:18,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:21:18,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:21:18,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:21:18,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:18,397 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 17:21:18,398 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1645963436] [2020-09-24 17:21:18,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:21:18,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 17:21:18,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146111126] [2020-09-24 17:21:18,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 17:21:18,399 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:21:18,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 17:21:18,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 17:21:18,400 INFO L87 Difference]: Start difference. First operand 146 states and 150 transitions. Second operand 6 states. [2020-09-24 17:21:18,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:21:18,807 INFO L93 Difference]: Finished difference Result 267 states and 275 transitions. [2020-09-24 17:21:18,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 17:21:18,807 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2020-09-24 17:21:18,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:21:18,809 INFO L225 Difference]: With dead ends: 267 [2020-09-24 17:21:18,809 INFO L226 Difference]: Without dead ends: 265 [2020-09-24 17:21:18,810 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 17:21:18,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-09-24 17:21:18,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 144. [2020-09-24 17:21:18,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-09-24 17:21:18,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 148 transitions. [2020-09-24 17:21:18,834 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 148 transitions. Word has length 45 [2020-09-24 17:21:18,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:21:18,834 INFO L479 AbstractCegarLoop]: Abstraction has 144 states and 148 transitions. [2020-09-24 17:21:18,834 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 17:21:18,835 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 148 transitions. [2020-09-24 17:21:18,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-24 17:21:18,839 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:21:18,839 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 17:21:18,839 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 17:21:18,839 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 17:21:18,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:21:18,840 INFO L82 PathProgramCache]: Analyzing trace with hash -1678067487, now seen corresponding path program 1 times [2020-09-24 17:21:18,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:21:18,841 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [357594771] [2020-09-24 17:21:18,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:21:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:18,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:18,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:18,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:18,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:19,247 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:19,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-24 17:21:19,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 17:21:19,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 385 [2020-09-24 17:21:19,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:19,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:21:19,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-09-24 17:21:19,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 17:21:19,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:19,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:21:19,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:19,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:19,455 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:19,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:21:19,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:19,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:21:19,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:19,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:21:19,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:21:19,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:21:19,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:21:19,463 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 17:21:19,464 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [357594771] [2020-09-24 17:21:19,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:21:19,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 17:21:19,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041338037] [2020-09-24 17:21:19,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 17:21:19,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:21:19,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 17:21:19,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-24 17:21:19,466 INFO L87 Difference]: Start difference. First operand 144 states and 148 transitions. Second operand 8 states. [2020-09-24 17:21:19,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:21:19,904 INFO L93 Difference]: Finished difference Result 194 states and 202 transitions. [2020-09-24 17:21:19,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 17:21:19,904 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 45 [2020-09-24 17:21:19,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:21:19,907 INFO L225 Difference]: With dead ends: 194 [2020-09-24 17:21:19,907 INFO L226 Difference]: Without dead ends: 192 [2020-09-24 17:21:19,908 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-24 17:21:19,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-09-24 17:21:19,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 142. [2020-09-24 17:21:19,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-09-24 17:21:19,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 146 transitions. [2020-09-24 17:21:19,921 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 146 transitions. Word has length 45 [2020-09-24 17:21:19,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:21:19,922 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 146 transitions. [2020-09-24 17:21:19,922 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 17:21:19,922 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 146 transitions. [2020-09-24 17:21:19,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-24 17:21:19,925 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:21:19,927 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 17:21:19,930 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 17:21:19,930 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 17:21:19,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:21:19,931 INFO L82 PathProgramCache]: Analyzing trace with hash 776869197, now seen corresponding path program 1 times [2020-09-24 17:21:19,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:21:19,931 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [690476446] [2020-09-24 17:21:19,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:21:19,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:19,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:19,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:20,196 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:20,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-24 17:21:20,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:21:20,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-09-24 17:21:20,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:20,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:21:20,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 17:21:20,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 17:21:20,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:20,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:21:20,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:20,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:20,318 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:20,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:21:20,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:20,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:21:20,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:20,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:21:20,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:21:20,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:21:20,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:21:20,326 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 17:21:20,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [690476446] [2020-09-24 17:21:20,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:21:20,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 17:21:20,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830560411] [2020-09-24 17:21:20,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 17:21:20,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:21:20,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 17:21:20,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 17:21:20,328 INFO L87 Difference]: Start difference. First operand 142 states and 146 transitions. Second operand 8 states. [2020-09-24 17:21:20,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:21:20,964 INFO L93 Difference]: Finished difference Result 233 states and 244 transitions. [2020-09-24 17:21:20,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 17:21:20,965 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 50 [2020-09-24 17:21:20,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:21:20,969 INFO L225 Difference]: With dead ends: 233 [2020-09-24 17:21:20,969 INFO L226 Difference]: Without dead ends: 231 [2020-09-24 17:21:20,970 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2020-09-24 17:21:20,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-09-24 17:21:20,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 140. [2020-09-24 17:21:20,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-09-24 17:21:20,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 144 transitions. [2020-09-24 17:21:20,981 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 144 transitions. Word has length 50 [2020-09-24 17:21:20,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:21:20,982 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 144 transitions. [2020-09-24 17:21:20,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 17:21:20,982 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 144 transitions. [2020-09-24 17:21:20,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-24 17:21:20,984 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:21:20,984 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 17:21:20,984 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 17:21:20,984 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 17:21:20,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:21:20,985 INFO L82 PathProgramCache]: Analyzing trace with hash -828388948, now seen corresponding path program 1 times [2020-09-24 17:21:20,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:21:20,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [404414577] [2020-09-24 17:21:20,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:21:21,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:21,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:21,127 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:21,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-24 17:21:21,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:21,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-24 17:21:21,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:21,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:21:21,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 17:21:21,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-24 17:21:21,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:21,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:21:21,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:21,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:21,218 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:21,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:21:21,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:21,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:21:21,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:21,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:21:21,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:21:21,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:21:21,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:21,225 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 17:21:21,230 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [404414577] [2020-09-24 17:21:21,231 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:21:21,232 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 17:21:21,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813433700] [2020-09-24 17:21:21,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 17:21:21,232 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:21:21,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 17:21:21,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 17:21:21,233 INFO L87 Difference]: Start difference. First operand 140 states and 144 transitions. Second operand 7 states. [2020-09-24 17:21:21,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:21:21,598 INFO L93 Difference]: Finished difference Result 198 states and 206 transitions. [2020-09-24 17:21:21,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 17:21:21,598 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 55 [2020-09-24 17:21:21,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:21:21,600 INFO L225 Difference]: With dead ends: 198 [2020-09-24 17:21:21,600 INFO L226 Difference]: Without dead ends: 196 [2020-09-24 17:21:21,601 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 17:21:21,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-09-24 17:21:21,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 138. [2020-09-24 17:21:21,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-09-24 17:21:21,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 142 transitions. [2020-09-24 17:21:21,607 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 142 transitions. Word has length 55 [2020-09-24 17:21:21,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:21:21,608 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 142 transitions. [2020-09-24 17:21:21,608 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 17:21:21,608 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 142 transitions. [2020-09-24 17:21:21,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-24 17:21:21,609 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:21:21,609 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 17:21:21,609 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 17:21:21,609 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 17:21:21,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:21:21,610 INFO L82 PathProgramCache]: Analyzing trace with hash -2080692744, now seen corresponding path program 1 times [2020-09-24 17:21:21,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:21:21,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [370525273] [2020-09-24 17:21:21,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:21:21,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:21,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:21,711 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:21,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 17:21:21,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:21,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-24 17:21:21,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:21,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:21:21,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-24 17:21:21,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-24 17:21:21,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:21,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:21:21,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:21,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:21,772 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:21,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:21:21,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:21,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:21:21,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:21,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:21:21,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:21:21,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:21:21,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:21,779 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 17:21:21,780 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [370525273] [2020-09-24 17:21:21,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:21:21,780 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 17:21:21,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109509792] [2020-09-24 17:21:21,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 17:21:21,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:21:21,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 17:21:21,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 17:21:21,782 INFO L87 Difference]: Start difference. First operand 138 states and 142 transitions. Second operand 6 states. [2020-09-24 17:21:22,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:21:22,068 INFO L93 Difference]: Finished difference Result 203 states and 211 transitions. [2020-09-24 17:21:22,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 17:21:22,068 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2020-09-24 17:21:22,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:21:22,070 INFO L225 Difference]: With dead ends: 203 [2020-09-24 17:21:22,070 INFO L226 Difference]: Without dead ends: 201 [2020-09-24 17:21:22,070 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 17:21:22,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-09-24 17:21:22,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 136. [2020-09-24 17:21:22,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-09-24 17:21:22,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 140 transitions. [2020-09-24 17:21:22,077 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 140 transitions. Word has length 60 [2020-09-24 17:21:22,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:21:22,077 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 140 transitions. [2020-09-24 17:21:22,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 17:21:22,078 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 140 transitions. [2020-09-24 17:21:22,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-24 17:21:22,078 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:21:22,079 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 17:21:22,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 17:21:22,079 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 17:21:22,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:21:22,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1555133305, now seen corresponding path program 1 times [2020-09-24 17:21:22,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:21:22,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [307626395] [2020-09-24 17:21:22,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:21:22,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:22,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:22,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:22,426 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:22,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 17:21:22,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:21:22,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 334 [2020-09-24 17:21:22,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:22,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:21:22,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-24 17:21:22,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-24 17:21:22,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:22,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:21:22,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:22,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:22,500 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:22,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:21:22,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:22,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:21:22,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:22,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:21:22,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:21:22,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:21:22,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:21:22,518 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 17:21:22,519 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [307626395] [2020-09-24 17:21:22,519 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:21:22,520 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 17:21:22,520 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417001339] [2020-09-24 17:21:22,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 17:21:22,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:21:22,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 17:21:22,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 17:21:22,522 INFO L87 Difference]: Start difference. First operand 136 states and 140 transitions. Second operand 7 states. [2020-09-24 17:21:23,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:21:23,078 INFO L93 Difference]: Finished difference Result 375 states and 390 transitions. [2020-09-24 17:21:23,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 17:21:23,078 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-09-24 17:21:23,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:21:23,081 INFO L225 Difference]: With dead ends: 375 [2020-09-24 17:21:23,081 INFO L226 Difference]: Without dead ends: 258 [2020-09-24 17:21:23,082 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 17:21:23,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2020-09-24 17:21:23,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 158. [2020-09-24 17:21:23,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-09-24 17:21:23,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 162 transitions. [2020-09-24 17:21:23,091 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 162 transitions. Word has length 69 [2020-09-24 17:21:23,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:21:23,091 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 162 transitions. [2020-09-24 17:21:23,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 17:21:23,091 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 162 transitions. [2020-09-24 17:21:23,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-24 17:21:23,092 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:21:23,092 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 17:21:23,093 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 17:21:23,093 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 17:21:23,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:21:23,093 INFO L82 PathProgramCache]: Analyzing trace with hash -623432219, now seen corresponding path program 1 times [2020-09-24 17:21:23,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:21:23,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [705568619] [2020-09-24 17:21:23,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:21:23,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:23,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:23,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:23,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:23,946 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:23,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 17:21:23,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 17:21:23,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 841 [2020-09-24 17:21:23,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:23,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 17:21:23,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 17:21:23,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-24 17:21:23,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:24,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:21:24,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:24,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:24,069 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:24,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:21:24,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:24,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:21:24,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:24,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:21:24,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:21:24,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:21:24,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:21:24,082 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 17:21:24,083 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [705568619] [2020-09-24 17:21:24,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:21:24,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 17:21:24,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364288376] [2020-09-24 17:21:24,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 17:21:24,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:21:24,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 17:21:24,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 17:21:24,085 INFO L87 Difference]: Start difference. First operand 158 states and 162 transitions. Second operand 8 states. [2020-09-24 17:21:24,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:21:24,828 INFO L93 Difference]: Finished difference Result 297 states and 308 transitions. [2020-09-24 17:21:24,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 17:21:24,829 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 74 [2020-09-24 17:21:24,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:21:24,831 INFO L225 Difference]: With dead ends: 297 [2020-09-24 17:21:24,831 INFO L226 Difference]: Without dead ends: 295 [2020-09-24 17:21:24,832 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2020-09-24 17:21:24,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-09-24 17:21:24,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 156. [2020-09-24 17:21:24,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-09-24 17:21:24,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 160 transitions. [2020-09-24 17:21:24,841 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 160 transitions. Word has length 74 [2020-09-24 17:21:24,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:21:24,841 INFO L479 AbstractCegarLoop]: Abstraction has 156 states and 160 transitions. [2020-09-24 17:21:24,841 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 17:21:24,841 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 160 transitions. [2020-09-24 17:21:24,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-24 17:21:24,842 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:21:24,842 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 17:21:24,843 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 17:21:24,843 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 17:21:24,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:21:24,843 INFO L82 PathProgramCache]: Analyzing trace with hash -1977531324, now seen corresponding path program 1 times [2020-09-24 17:21:24,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:21:24,844 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1647568262] [2020-09-24 17:21:24,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:21:24,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:24,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:25,040 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:25,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 17:21:25,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:25,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-09-24 17:21:25,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:25,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:21:25,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 17:21:25,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-24 17:21:25,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:21:25,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:21:25,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:25,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:25,128 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:25,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:21:25,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:25,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:21:25,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:25,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:21:25,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:21:25,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:21:25,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:21:25,152 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 17:21:25,153 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1647568262] [2020-09-24 17:21:25,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:21:25,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 17:21:25,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242232657] [2020-09-24 17:21:25,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 17:21:25,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:21:25,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 17:21:25,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 17:21:25,156 INFO L87 Difference]: Start difference. First operand 156 states and 160 transitions. Second operand 8 states. [2020-09-24 17:21:25,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:21:25,758 INFO L93 Difference]: Finished difference Result 271 states and 282 transitions. [2020-09-24 17:21:25,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 17:21:25,759 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2020-09-24 17:21:25,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:21:25,761 INFO L225 Difference]: With dead ends: 271 [2020-09-24 17:21:25,762 INFO L226 Difference]: Without dead ends: 269 [2020-09-24 17:21:25,763 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 17:21:25,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-09-24 17:21:25,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 154. [2020-09-24 17:21:25,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-09-24 17:21:25,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 158 transitions. [2020-09-24 17:21:25,776 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 158 transitions. Word has length 79 [2020-09-24 17:21:25,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:21:25,777 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 158 transitions. [2020-09-24 17:21:25,777 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 17:21:25,777 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 158 transitions. [2020-09-24 17:21:25,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-09-24 17:21:25,778 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:21:25,778 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 17:21:25,779 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 17:21:25,779 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 17:21:25,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:21:25,780 INFO L82 PathProgramCache]: Analyzing trace with hash 108101264, now seen corresponding path program 1 times [2020-09-24 17:21:25,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:21:25,780 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1814847673] [2020-09-24 17:21:25,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:21:25,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:25,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:25,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:26,290 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:26,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 17:21:26,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:21:26,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 494 [2020-09-24 17:21:26,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:26,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 17:21:26,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-09-24 17:21:26,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 17:21:26,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:26,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:21:26,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:26,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:26,396 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:26,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:21:26,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:26,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:21:26,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:26,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:21:26,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:21:26,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:21:26,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:26,406 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 17:21:26,407 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1814847673] [2020-09-24 17:21:26,407 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:21:26,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 17:21:26,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598584910] [2020-09-24 17:21:26,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 17:21:26,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:21:26,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 17:21:26,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-24 17:21:26,409 INFO L87 Difference]: Start difference. First operand 154 states and 158 transitions. Second operand 8 states. [2020-09-24 17:21:26,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:21:26,774 INFO L93 Difference]: Finished difference Result 267 states and 275 transitions. [2020-09-24 17:21:26,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 17:21:26,774 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2020-09-24 17:21:26,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:21:26,776 INFO L225 Difference]: With dead ends: 267 [2020-09-24 17:21:26,777 INFO L226 Difference]: Without dead ends: 265 [2020-09-24 17:21:26,777 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-09-24 17:21:26,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-09-24 17:21:26,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 152. [2020-09-24 17:21:26,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-09-24 17:21:26,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 156 transitions. [2020-09-24 17:21:26,788 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 156 transitions. Word has length 84 [2020-09-24 17:21:26,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:21:26,788 INFO L479 AbstractCegarLoop]: Abstraction has 152 states and 156 transitions. [2020-09-24 17:21:26,788 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 17:21:26,789 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 156 transitions. [2020-09-24 17:21:26,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-09-24 17:21:26,789 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:21:26,790 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 17:21:26,790 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 17:21:26,790 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 17:21:26,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:21:26,791 INFO L82 PathProgramCache]: Analyzing trace with hash 274017809, now seen corresponding path program 1 times [2020-09-24 17:21:26,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:21:26,791 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [643527086] [2020-09-24 17:21:26,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:21:26,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:26,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:27,045 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:27,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 17:21:27,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:27,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-24 17:21:27,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:27,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 17:21:27,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 17:21:27,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 17:21:27,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:27,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:21:27,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:27,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:27,123 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:27,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:21:27,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:27,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:21:27,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:27,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:21:27,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:21:27,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:21:27,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:27,139 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 17:21:27,140 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [643527086] [2020-09-24 17:21:27,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:21:27,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 17:21:27,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182460648] [2020-09-24 17:21:27,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 17:21:27,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:21:27,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 17:21:27,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-24 17:21:27,141 INFO L87 Difference]: Start difference. First operand 152 states and 156 transitions. Second operand 9 states. [2020-09-24 17:21:27,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:21:27,762 INFO L93 Difference]: Finished difference Result 281 states and 292 transitions. [2020-09-24 17:21:27,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 17:21:27,763 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2020-09-24 17:21:27,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:21:27,764 INFO L225 Difference]: With dead ends: 281 [2020-09-24 17:21:27,764 INFO L226 Difference]: Without dead ends: 279 [2020-09-24 17:21:27,765 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 17:21:27,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-09-24 17:21:27,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 150. [2020-09-24 17:21:27,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-09-24 17:21:27,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 154 transitions. [2020-09-24 17:21:27,780 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 154 transitions. Word has length 93 [2020-09-24 17:21:27,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:21:27,780 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 154 transitions. [2020-09-24 17:21:27,780 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 17:21:27,781 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 154 transitions. [2020-09-24 17:21:27,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-09-24 17:21:27,781 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:21:27,782 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 17:21:27,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-24 17:21:27,783 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 17:21:27,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:21:27,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1620264573, now seen corresponding path program 1 times [2020-09-24 17:21:27,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:21:27,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1963776372] [2020-09-24 17:21:27,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:21:27,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:27,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:27,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:28,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:28,942 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:28,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-09-24 17:21:28,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 17:21:28,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1142 [2020-09-24 17:21:28,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:28,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 17:21:28,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-09-24 17:21:28,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 17:21:28,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:29,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:21:29,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:21:29,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:21:29,054 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:21:29,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:21:29,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:21:29,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:21:29,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:21:29,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:21:29,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:21:29,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:21:29,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:21:29,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:21:29,063 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1963776372] [2020-09-24 17:21:29,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:21:29,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 17:21:29,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098214319] [2020-09-24 17:21:29,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 17:21:29,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:21:29,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 17:21:29,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 17:21:29,065 INFO L87 Difference]: Start difference. First operand 150 states and 154 transitions. Second operand 8 states. [2020-09-24 17:21:29,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:21:29,891 INFO L93 Difference]: Finished difference Result 277 states and 285 transitions. [2020-09-24 17:21:29,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 17:21:29,891 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 98 [2020-09-24 17:21:29,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:21:29,892 INFO L225 Difference]: With dead ends: 277 [2020-09-24 17:21:29,892 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 17:21:29,894 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2020-09-24 17:21:29,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 17:21:29,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 17:21:29,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 17:21:29,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 17:21:29,898 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 98 [2020-09-24 17:21:29,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:21:29,899 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 17:21:29,899 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 17:21:29,899 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 17:21:29,899 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 17:21:29,899 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-24 17:21:29,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 17:21:30,971 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 213 DAG size of output: 101 [2020-09-24 17:21:31,411 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 99 [2020-09-24 17:21:31,627 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 17 [2020-09-24 17:21:31,946 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 38 [2020-09-24 17:21:32,141 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 20 [2020-09-24 17:21:32,157 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-24 17:21:32,158 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-24 17:21:32,158 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 17:21:32,158 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 17:21:32,158 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 17:21:32,158 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 17:21:32,158 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 17:21:32,158 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 17:21:32,159 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-09-24 17:21:32,159 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-24 17:21:32,159 INFO L268 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2020-09-24 17:21:32,159 INFO L268 CegarLoopResult]: For program point L5-3(lines 4 6) no Hoare annotation was computed. [2020-09-24 17:21:32,159 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-09-24 17:21:32,159 INFO L268 CegarLoopResult]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 86) no Hoare annotation was computed. [2020-09-24 17:21:32,159 INFO L268 CegarLoopResult]: For program point L250(line 250) no Hoare annotation was computed. [2020-09-24 17:21:32,159 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 311) no Hoare annotation was computed. [2020-09-24 17:21:32,159 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-09-24 17:21:32,159 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-09-24 17:21:32,160 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-24 17:21:32,160 INFO L268 CegarLoopResult]: For program point L234(line 234) no Hoare annotation was computed. [2020-09-24 17:21:32,160 INFO L268 CegarLoopResult]: For program point L201(lines 201 271) no Hoare annotation was computed. [2020-09-24 17:21:32,160 INFO L268 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-09-24 17:21:32,160 INFO L268 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-09-24 17:21:32,160 INFO L268 CegarLoopResult]: For program point L36(lines 36 292) no Hoare annotation was computed. [2020-09-24 17:21:32,160 INFO L268 CegarLoopResult]: For program point L251(line 251) no Hoare annotation was computed. [2020-09-24 17:21:32,160 INFO L268 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-09-24 17:21:32,161 INFO L268 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-09-24 17:21:32,161 INFO L268 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-09-24 17:21:32,161 INFO L268 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-09-24 17:21:32,161 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-24 17:21:32,161 INFO L268 CegarLoopResult]: For program point mainErr14ASSERT_VIOLATIONERROR_FUNCTION(line 243) no Hoare annotation was computed. [2020-09-24 17:21:32,161 INFO L268 CegarLoopResult]: For program point L235(line 235) no Hoare annotation was computed. [2020-09-24 17:21:32,161 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-09-24 17:21:32,161 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-09-24 17:21:32,161 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-09-24 17:21:32,162 INFO L268 CegarLoopResult]: For program point L252(line 252) no Hoare annotation was computed. [2020-09-24 17:21:32,162 INFO L268 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-09-24 17:21:32,162 INFO L268 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-09-24 17:21:32,162 INFO L268 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-09-24 17:21:32,162 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 17:21:32,162 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 11 311) no Hoare annotation was computed. [2020-09-24 17:21:32,162 INFO L268 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-09-24 17:21:32,162 INFO L268 CegarLoopResult]: For program point mainErr13ASSERT_VIOLATIONERROR_FUNCTION(line 227) no Hoare annotation was computed. [2020-09-24 17:21:32,162 INFO L268 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-09-24 17:21:32,162 INFO L268 CegarLoopResult]: For program point L137(lines 137 281) no Hoare annotation was computed. [2020-09-24 17:21:32,163 INFO L268 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-09-24 17:21:32,163 INFO L268 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-09-24 17:21:32,163 INFO L268 CegarLoopResult]: For program point L253(lines 253 263) no Hoare annotation was computed. [2020-09-24 17:21:32,163 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-09-24 17:21:32,163 INFO L268 CegarLoopResult]: For program point L55(lines 55 284) no Hoare annotation was computed. [2020-09-24 17:21:32,163 INFO L268 CegarLoopResult]: For program point L237(line 237) no Hoare annotation was computed. [2020-09-24 17:21:32,163 INFO L268 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-09-24 17:21:32,163 INFO L268 CegarLoopResult]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 163) no Hoare annotation was computed. [2020-09-24 17:21:32,164 INFO L268 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-09-24 17:21:32,164 INFO L268 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-09-24 17:21:32,164 INFO L268 CegarLoopResult]: For program point L72(lines 72 127) no Hoare annotation was computed. [2020-09-24 17:21:32,164 INFO L268 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-09-24 17:21:32,164 INFO L268 CegarLoopResult]: For program point L221(line 221) no Hoare annotation was computed. [2020-09-24 17:21:32,164 INFO L268 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-09-24 17:21:32,164 INFO L268 CegarLoopResult]: For program point L238(line 238) no Hoare annotation was computed. [2020-09-24 17:21:32,165 INFO L268 CegarLoopResult]: For program point mainErr15ASSERT_VIOLATIONERROR_FUNCTION(line 255) no Hoare annotation was computed. [2020-09-24 17:21:32,165 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-09-24 17:21:32,165 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-09-24 17:21:32,165 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-09-24 17:21:32,165 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-24 17:21:32,165 INFO L268 CegarLoopResult]: For program point L255(line 255) no Hoare annotation was computed. [2020-09-24 17:21:32,165 INFO L268 CegarLoopResult]: For program point L222(line 222) no Hoare annotation was computed. [2020-09-24 17:21:32,165 INFO L268 CegarLoopResult]: For program point L189(lines 189 273) no Hoare annotation was computed. [2020-09-24 17:21:32,166 INFO L268 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-09-24 17:21:32,166 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-24 17:21:32,166 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-09-24 17:21:32,166 INFO L268 CegarLoopResult]: For program point L24-2(line 24) no Hoare annotation was computed. [2020-09-24 17:21:32,166 INFO L268 CegarLoopResult]: For program point L239(line 239) no Hoare annotation was computed. [2020-09-24 17:21:32,166 INFO L268 CegarLoopResult]: For program point L173(lines 173 275) no Hoare annotation was computed. [2020-09-24 17:21:32,166 INFO L268 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-09-24 17:21:32,166 INFO L268 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-09-24 17:21:32,166 INFO L268 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-09-24 17:21:32,166 INFO L268 CegarLoopResult]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 191) no Hoare annotation was computed. [2020-09-24 17:21:32,166 INFO L268 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-09-24 17:21:32,167 INFO L268 CegarLoopResult]: For program point L256(line 256) no Hoare annotation was computed. [2020-09-24 17:21:32,167 INFO L268 CegarLoopResult]: For program point L223(line 223) no Hoare annotation was computed. [2020-09-24 17:21:32,167 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-09-24 17:21:32,167 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-09-24 17:21:32,167 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-24 17:21:32,167 INFO L268 CegarLoopResult]: For program point L240(line 240) no Hoare annotation was computed. [2020-09-24 17:21:32,167 INFO L268 CegarLoopResult]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 175) no Hoare annotation was computed. [2020-09-24 17:21:32,168 INFO L268 CegarLoopResult]: For program point L108(lines 108 121) no Hoare annotation was computed. [2020-09-24 17:21:32,168 INFO L268 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-09-24 17:21:32,168 INFO L268 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-09-24 17:21:32,168 INFO L268 CegarLoopResult]: For program point L224(line 224) no Hoare annotation was computed. [2020-09-24 17:21:32,168 INFO L268 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-09-24 17:21:32,168 INFO L268 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-09-24 17:21:32,168 INFO L268 CegarLoopResult]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 98) no Hoare annotation was computed. [2020-09-24 17:21:32,169 INFO L268 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-09-24 17:21:32,169 INFO L268 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-09-24 17:21:32,169 INFO L268 CegarLoopResult]: For program point L307(line 307) no Hoare annotation was computed. [2020-09-24 17:21:32,169 INFO L268 CegarLoopResult]: For program point L241(lines 241 265) no Hoare annotation was computed. [2020-09-24 17:21:32,169 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-09-24 17:21:32,169 INFO L268 CegarLoopResult]: For program point L43(lines 43 286) no Hoare annotation was computed. [2020-09-24 17:21:32,169 INFO L264 CegarLoopResult]: At program point L291(lines 36 292) the Hoare annotation is: (and (<= 0 main_~main__i~0) (< main_~main__i~0 main_~main__len~0) (<= 0 main_~main__j~0) (<= (+ main_~main__j~0 5) main_~main__bufsize~0) (<= (+ main_~main__limit~0 4) main_~main__bufsize~0) (= |old(~__return_334~0)| ~__return_334~0)) [2020-09-24 17:21:32,169 INFO L268 CegarLoopResult]: For program point L225(lines 225 267) no Hoare annotation was computed. [2020-09-24 17:21:32,170 INFO L268 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-09-24 17:21:32,170 INFO L268 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-09-24 17:21:32,170 INFO L268 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-09-24 17:21:32,170 INFO L268 CegarLoopResult]: For program point L308(line 308) no Hoare annotation was computed. [2020-09-24 17:21:32,170 INFO L268 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-09-24 17:21:32,170 INFO L268 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-09-24 17:21:32,170 INFO L268 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-09-24 17:21:32,171 INFO L268 CegarLoopResult]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 203) no Hoare annotation was computed. [2020-09-24 17:21:32,171 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-09-24 17:21:32,171 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-09-24 17:21:32,171 INFO L268 CegarLoopResult]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 139) no Hoare annotation was computed. [2020-09-24 17:21:32,171 INFO L268 CegarLoopResult]: For program point L243(line 243) no Hoare annotation was computed. [2020-09-24 17:21:32,171 INFO L268 CegarLoopResult]: For program point L210(line 210) no Hoare annotation was computed. [2020-09-24 17:21:32,171 INFO L268 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-09-24 17:21:32,171 INFO L268 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-09-24 17:21:32,171 INFO L268 CegarLoopResult]: For program point L260(line 260) no Hoare annotation was computed. [2020-09-24 17:21:32,171 INFO L268 CegarLoopResult]: For program point L227(line 227) no Hoare annotation was computed. [2020-09-24 17:21:32,172 INFO L268 CegarLoopResult]: For program point L161(lines 161 277) no Hoare annotation was computed. [2020-09-24 17:21:32,172 INFO L268 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-09-24 17:21:32,172 INFO L268 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-09-24 17:21:32,172 INFO L268 CegarLoopResult]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 110) no Hoare annotation was computed. [2020-09-24 17:21:32,172 INFO L268 CegarLoopResult]: For program point L244(line 244) no Hoare annotation was computed. [2020-09-24 17:21:32,172 INFO L268 CegarLoopResult]: For program point L211(line 211) no Hoare annotation was computed. [2020-09-24 17:21:32,172 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-09-24 17:21:32,172 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-24 17:21:32,173 INFO L268 CegarLoopResult]: For program point L261(line 261) no Hoare annotation was computed. [2020-09-24 17:21:32,173 INFO L268 CegarLoopResult]: For program point L228(line 228) no Hoare annotation was computed. [2020-09-24 17:21:32,173 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 45) no Hoare annotation was computed. [2020-09-24 17:21:32,173 INFO L268 CegarLoopResult]: For program point L96(lines 96 123) no Hoare annotation was computed. [2020-09-24 17:21:32,173 INFO L268 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-09-24 17:21:32,173 INFO L268 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-09-24 17:21:32,173 INFO L268 CegarLoopResult]: For program point L63-1(line 63) no Hoare annotation was computed. [2020-09-24 17:21:32,173 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 11 311) the Hoare annotation is: (= |old(~__return_334~0)| ~__return_334~0) [2020-09-24 17:21:32,173 INFO L268 CegarLoopResult]: For program point L63-2(line 63) no Hoare annotation was computed. [2020-09-24 17:21:32,173 INFO L268 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-09-24 17:21:32,173 INFO L268 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-09-24 17:21:32,174 INFO L268 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-09-24 17:21:32,174 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-24 17:21:32,174 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)) (.cse2 (= |old(~__return_334~0)| ~__return_334~0))) (let ((.cse4 (or (and .cse0 .cse5 .cse2) (and .cse0 (<= 1 main_~__tmp_13~0) .cse2 (<= 1 main_~__VERIFIER_assert__cond~12)))) (.cse1 (<= 0 main_~main__j~0)) (.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 .cse1 .cse5 .cse3) (and .cse4 (<= 1 main_~__VERIFIER_assert__cond~14) .cse1 (<= 1 main_~__tmp_15~0) .cse3)))) [2020-09-24 17:21:32,174 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-09-24 17:21:32,174 INFO L268 CegarLoopResult]: For program point L64(lines 64 283) no Hoare annotation was computed. [2020-09-24 17:21:32,174 INFO L268 CegarLoopResult]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 151) no Hoare annotation was computed. [2020-09-24 17:21:32,175 INFO L268 CegarLoopResult]: For program point L213(lines 213 269) no Hoare annotation was computed. [2020-09-24 17:21:32,175 INFO L268 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-09-24 17:21:32,175 INFO L268 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-09-24 17:21:32,175 INFO L268 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-09-24 17:21:32,175 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-24 17:21:32,175 INFO L268 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-09-24 17:21:32,175 INFO L268 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-09-24 17:21:32,175 INFO L268 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-09-24 17:21:32,176 INFO L268 CegarLoopResult]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 74) no Hoare annotation was computed. [2020-09-24 17:21:32,176 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-09-24 17:21:32,176 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-09-24 17:21:32,176 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-09-24 17:21:32,176 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-09-24 17:21:32,176 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-24 17:21:32,176 INFO L268 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-09-24 17:21:32,176 INFO L268 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-09-24 17:21:32,177 INFO L268 CegarLoopResult]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 57) no Hoare annotation was computed. [2020-09-24 17:21:32,177 INFO L268 CegarLoopResult]: For program point L215(line 215) no Hoare annotation was computed. [2020-09-24 17:21:32,177 INFO L268 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-09-24 17:21:32,177 INFO L268 CegarLoopResult]: For program point L149(lines 149 279) no Hoare annotation was computed. [2020-09-24 17:21:32,177 INFO L268 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-09-24 17:21:32,177 INFO L268 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-09-24 17:21:32,177 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-24 17:21:32,177 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-09-24 17:21:32,178 INFO L268 CegarLoopResult]: For program point L17-2(line 17) no Hoare annotation was computed. [2020-09-24 17:21:32,178 INFO L268 CegarLoopResult]: For program point L232(line 232) no Hoare annotation was computed. [2020-09-24 17:21:32,178 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-09-24 17:21:32,178 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-09-24 17:21:32,178 INFO L268 CegarLoopResult]: For program point L34(lines 34 298) no Hoare annotation was computed. [2020-09-24 17:21:32,178 INFO L268 CegarLoopResult]: For program point L249(line 249) no Hoare annotation was computed. [2020-09-24 17:21:32,179 INFO L268 CegarLoopResult]: For program point L216(line 216) no Hoare annotation was computed. [2020-09-24 17:21:32,179 INFO L268 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-09-24 17:21:32,179 INFO L268 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-09-24 17:21:32,179 INFO L268 CegarLoopResult]: For program point L84(lines 84 125) no Hoare annotation was computed. [2020-09-24 17:21:32,179 INFO L268 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-09-24 17:21:32,179 INFO L268 CegarLoopResult]: For program point L18(lines 18 310) no Hoare annotation was computed. [2020-09-24 17:21:32,190 INFO L268 CegarLoopResult]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 215) no Hoare annotation was computed. [2020-09-24 17:21:32,190 INFO L268 CegarLoopResult]: For program point L233(line 233) no Hoare annotation was computed. [2020-09-24 17:21:32,190 INFO L268 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-09-24 17:21:32,191 INFO L268 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-09-24 17:21:32,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 05:21:32 BoogieIcfgContainer [2020-09-24 17:21:32,237 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 17:21:32,239 INFO L168 Benchmark]: Toolchain (without parser) took 19523.30 ms. Allocated memory was 138.9 MB in the beginning and 406.8 MB in the end (delta: 267.9 MB). Free memory was 102.4 MB in the beginning and 374.9 MB in the end (delta: -272.5 MB). Peak memory consumption was 255.4 MB. Max. memory is 7.1 GB. [2020-09-24 17:21:32,240 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 17:21:32,241 INFO L168 Benchmark]: CACSL2BoogieTranslator took 402.21 ms. Allocated memory is still 138.9 MB. Free memory was 101.7 MB in the beginning and 89.2 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2020-09-24 17:21:32,242 INFO L168 Benchmark]: Boogie Preprocessor took 130.47 ms. Allocated memory was 138.9 MB in the beginning and 200.8 MB in the end (delta: 61.9 MB). Free memory was 89.2 MB in the beginning and 178.1 MB in the end (delta: -88.9 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. [2020-09-24 17:21:32,242 INFO L168 Benchmark]: RCFGBuilder took 618.99 ms. Allocated memory is still 200.8 MB. Free memory was 178.1 MB in the beginning and 147.1 MB in the end (delta: 31.0 MB). Peak memory consumption was 31.0 MB. Max. memory is 7.1 GB. [2020-09-24 17:21:32,243 INFO L168 Benchmark]: TraceAbstraction took 18361.87 ms. Allocated memory was 200.8 MB in the beginning and 406.8 MB in the end (delta: 206.0 MB). Free memory was 146.4 MB in the beginning and 374.9 MB in the end (delta: -228.5 MB). Peak memory consumption was 237.5 MB. Max. memory is 7.1 GB. [2020-09-24 17:21:32,246 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 402.21 ms. Allocated memory is still 138.9 MB. Free memory was 101.7 MB in the beginning and 89.2 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.47 ms. Allocated memory was 138.9 MB in the beginning and 200.8 MB in the end (delta: 61.9 MB). Free memory was 89.2 MB in the beginning and 178.1 MB in the end (delta: -88.9 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 618.99 ms. Allocated memory is still 200.8 MB. Free memory was 178.1 MB in the beginning and 147.1 MB in the end (delta: 31.0 MB). Peak memory consumption was 31.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18361.87 ms. Allocated memory was 200.8 MB in the beginning and 406.8 MB in the end (delta: 206.0 MB). Free memory was 146.4 MB in the beginning and 374.9 MB in the end (delta: -228.5 MB). Peak memory consumption was 237.5 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) || ((((((0 <= main__i && main__j + 4 <= main__bufsize) && \old(__return_334) == __return_334) || (((0 <= main__i && 1 <= __tmp_13) && \old(__return_334) == __return_334) && 1 <= __VERIFIER_assert__cond)) && 0 <= main__j) && main__j + 4 <= main__bufsize) && main__limit + 4 <= main__bufsize)) || (((((((0 <= main__i && main__j + 4 <= main__bufsize) && \old(__return_334) == __return_334) || (((0 <= main__i && 1 <= __tmp_13) && \old(__return_334) == __return_334) && 1 <= __VERIFIER_assert__cond)) && 1 <= __VERIFIER_assert__cond) && 0 <= main__j) && 1 <= __tmp_15) && main__limit + 4 <= main__bufsize) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: ((((0 <= main__i && main__i < main__len) && 0 <= main__j) && main__j + 5 <= main__bufsize) && main__limit + 4 <= main__bufsize) && \old(__return_334) == __return_334 - 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: 15.9s, OverallIterations: 16, TraceHistogramMax: 1, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3231 SDtfs, 8725 SDslu, 438 SDs, 0 SdLazy, 5617 SolverSat, 245 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 253 GetRequests, 69 SyntacticMatches, 3 SemanticMatches, 181 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 2.5s 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, 1427 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 18 NumberOfFragments, 149 HoareAnnotationTreeSize, 7 FomulaSimplifications, 492853313 FormulaSimplificationTreeSizeReduction, 1.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 13289 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 922 NumberOfCodeBlocks, 922 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 906 ConstructedInterpolants, 0 QuantifiedInterpolants, 169732 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...