/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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --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/apache-escape-absolute.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 20:41:34,056 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 20:41:34,059 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 20:41:34,100 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 20:41:34,100 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 20:41:34,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 20:41:34,112 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 20:41:34,115 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 20:41:34,118 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 20:41:34,121 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 20:41:34,122 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 20:41:34,122 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 20:41:34,123 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 20:41:34,125 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 20:41:34,128 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 20:41:34,129 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 20:41:34,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 20:41:34,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 20:41:34,133 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 20:41:34,141 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 20:41:34,143 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 20:41:34,144 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 20:41:34,145 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 20:41:34,146 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 20:41:34,160 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-21 20:41:34,177 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 20:41:34,178 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 20:41:34,178 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 20:41:34,180 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 [2020-08-21 20:41:34,218 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 20:41:34,218 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 20:41:34,220 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 20:41:34,220 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 20:41:34,220 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 20:41:34,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 20:41:34,221 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 20:41:34,221 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 20:41:34,221 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 20:41:34,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 20:41:34,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 20:41:34,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 20:41:34,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 20:41:34,224 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 20:41:34,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 20:41:34,224 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 20:41:34,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 20:41:34,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 20:41:34,225 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 20:41:34,225 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 20:41:34,225 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 20:41:34,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 20:41:34,226 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 20:41:34,226 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 20:41:34,226 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 20:41:34,226 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 20:41:34,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 20:41:34,227 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 20:41:34,227 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 20:41:34,227 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.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; [2020-08-21 20:41:34,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 20:41:34,530 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 20:41:34,534 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 20:41:34,535 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 20:41:34,536 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 20:41:34,536 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-08-21 20:41:34,603 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8bc0cd97d/1a1b759df0f84cf882c7cd5978241201/FLAG7db92374c [2020-08-21 20:41:35,111 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 20:41:35,112 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-08-21 20:41:35,131 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8bc0cd97d/1a1b759df0f84cf882c7cd5978241201/FLAG7db92374c [2020-08-21 20:41:35,461 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8bc0cd97d/1a1b759df0f84cf882c7cd5978241201 [2020-08-21 20:41:35,470 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 20:41:35,471 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 20:41:35,472 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 20:41:35,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 20:41:35,476 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 20:41:35,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 08:41:35" (1/1) ... [2020-08-21 20:41:35,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61ac3c2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:41:35, skipping insertion in model container [2020-08-21 20:41:35,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 08:41:35" (1/1) ... [2020-08-21 20:41:35,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 20:41:35,542 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 20:41:35,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 20:41:35,743 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 20:41:35,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 20:41:35,881 INFO L208 MainTranslator]: Completed translation [2020-08-21 20:41:35,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:41:35 WrapperNode [2020-08-21 20:41:35,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 20:41:35,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 20:41:35,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 20:41:35,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 20:41:35,894 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:41:35" (1/1) ... [2020-08-21 20:41:35,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:41:35" (1/1) ... [2020-08-21 20:41:35,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:41:35" (1/1) ... [2020-08-21 20:41:35,902 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:41:35" (1/1) ... [2020-08-21 20:41:35,910 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:41:35" (1/1) ... [2020-08-21 20:41:35,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:41:35" (1/1) ... [2020-08-21 20:41:35,921 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:41:35" (1/1) ... [2020-08-21 20:41:35,929 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 20:41:35,930 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 20:41:35,930 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 20:41:35,930 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 20:41:35,931 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:41:35" (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 [2020-08-21 20:41:36,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 20:41:36,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 20:41:36,003 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-21 20:41:36,003 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 20:41:36,004 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 20:41:36,004 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-21 20:41:36,004 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-21 20:41:36,004 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-21 20:41:36,004 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 20:41:36,005 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 20:41:36,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 20:41:36,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 20:41:36,480 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 20:41:36,480 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-21 20:41:36,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 08:41:36 BoogieIcfgContainer [2020-08-21 20:41:36,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 20:41:36,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 20:41:36,487 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 20:41:36,490 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 20:41:36,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 08:41:35" (1/3) ... [2020-08-21 20:41:36,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48554f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 08:41:36, skipping insertion in model container [2020-08-21 20:41:36,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:41:35" (2/3) ... [2020-08-21 20:41:36,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48554f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 08:41:36, skipping insertion in model container [2020-08-21 20:41:36,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 08:41:36" (3/3) ... [2020-08-21 20:41:36,493 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i.v+cfa-reducer.c [2020-08-21 20:41:36,503 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 20:41:36,510 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2020-08-21 20:41:36,524 INFO L251 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2020-08-21 20:41:36,547 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 20:41:36,547 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 20:41:36,548 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 20:41:36,548 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 20:41:36,548 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 20:41:36,548 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 20:41:36,548 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 20:41:36,548 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 20:41:36,571 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2020-08-21 20:41:36,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-08-21 20:41:36,577 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:41:36,577 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 20:41:36,578 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:41:36,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:41:36,584 INFO L82 PathProgramCache]: Analyzing trace with hash -2019463306, now seen corresponding path program 1 times [2020-08-21 20:41:36,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:41:36,590 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2113292551] [2020-08-21 20:41:36,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:41:36,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:36,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:41:36,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:36,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 20:41:36,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2113292551] [2020-08-21 20:41:36,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 20:41:36,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 20:41:36,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535910091] [2020-08-21 20:41:36,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-21 20:41:36,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:41:36,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-21 20:41:36,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-21 20:41:36,816 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 4 states. [2020-08-21 20:41:36,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:41:36,970 INFO L93 Difference]: Finished difference Result 93 states and 129 transitions. [2020-08-21 20:41:36,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 20:41:36,973 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-08-21 20:41:36,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:41:36,985 INFO L225 Difference]: With dead ends: 93 [2020-08-21 20:41:36,986 INFO L226 Difference]: Without dead ends: 80 [2020-08-21 20:41:36,990 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-21 20:41:37,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-08-21 20:41:37,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-08-21 20:41:37,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-08-21 20:41:37,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 83 transitions. [2020-08-21 20:41:37,044 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 83 transitions. Word has length 19 [2020-08-21 20:41:37,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:41:37,045 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 83 transitions. [2020-08-21 20:41:37,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-21 20:41:37,045 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 83 transitions. [2020-08-21 20:41:37,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-08-21 20:41:37,046 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:41:37,046 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 20:41:37,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 20:41:37,047 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:41:37,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:41:37,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1821150056, now seen corresponding path program 1 times [2020-08-21 20:41:37,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:41:37,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [855579533] [2020-08-21 20:41:37,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:41:37,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:37,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:41:37,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:37,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 20:41:37,164 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [855579533] [2020-08-21 20:41:37,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 20:41:37,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 20:41:37,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245468256] [2020-08-21 20:41:37,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 20:41:37,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:41:37,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 20:41:37,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-08-21 20:41:37,168 INFO L87 Difference]: Start difference. First operand 80 states and 83 transitions. Second operand 7 states. [2020-08-21 20:41:37,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:41:37,370 INFO L93 Difference]: Finished difference Result 80 states and 83 transitions. [2020-08-21 20:41:37,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 20:41:37,370 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-08-21 20:41:37,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:41:37,372 INFO L225 Difference]: With dead ends: 80 [2020-08-21 20:41:37,372 INFO L226 Difference]: Without dead ends: 78 [2020-08-21 20:41:37,374 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-08-21 20:41:37,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-08-21 20:41:37,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-08-21 20:41:37,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-08-21 20:41:37,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 81 transitions. [2020-08-21 20:41:37,386 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 81 transitions. Word has length 20 [2020-08-21 20:41:37,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:41:37,386 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 81 transitions. [2020-08-21 20:41:37,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 20:41:37,387 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 81 transitions. [2020-08-21 20:41:37,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-08-21 20:41:37,387 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:41:37,388 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] [2020-08-21 20:41:37,388 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 20:41:37,389 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:41:37,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:41:37,389 INFO L82 PathProgramCache]: Analyzing trace with hash 2073610827, now seen corresponding path program 1 times [2020-08-21 20:41:37,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:41:37,390 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [998025655] [2020-08-21 20:41:37,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:41:37,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:37,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:41:37,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:37,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 20:41:37,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [998025655] [2020-08-21 20:41:37,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 20:41:37,470 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 20:41:37,472 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926639706] [2020-08-21 20:41:37,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 20:41:37,473 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:41:37,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 20:41:37,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-21 20:41:37,474 INFO L87 Difference]: Start difference. First operand 78 states and 81 transitions. Second operand 5 states. [2020-08-21 20:41:37,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:41:37,706 INFO L93 Difference]: Finished difference Result 101 states and 106 transitions. [2020-08-21 20:41:37,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 20:41:37,710 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-08-21 20:41:37,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:41:37,712 INFO L225 Difference]: With dead ends: 101 [2020-08-21 20:41:37,712 INFO L226 Difference]: Without dead ends: 99 [2020-08-21 20:41:37,712 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-08-21 20:41:37,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-08-21 20:41:37,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 76. [2020-08-21 20:41:37,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-08-21 20:41:37,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2020-08-21 20:41:37,737 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 22 [2020-08-21 20:41:37,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:41:37,738 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2020-08-21 20:41:37,738 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 20:41:37,738 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2020-08-21 20:41:37,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-08-21 20:41:37,739 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:41:37,739 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] [2020-08-21 20:41:37,739 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 20:41:37,740 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:41:37,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:41:37,740 INFO L82 PathProgramCache]: Analyzing trace with hash -142570686, now seen corresponding path program 1 times [2020-08-21 20:41:37,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:41:37,743 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [450686077] [2020-08-21 20:41:37,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:41:37,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:37,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:41:37,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:37,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 20:41:37,887 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [450686077] [2020-08-21 20:41:37,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 20:41:37,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 20:41:37,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345309693] [2020-08-21 20:41:37,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 20:41:37,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:41:37,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 20:41:37,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-21 20:41:37,889 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand 6 states. [2020-08-21 20:41:38,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:41:38,047 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2020-08-21 20:41:38,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 20:41:38,047 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2020-08-21 20:41:38,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:41:38,049 INFO L225 Difference]: With dead ends: 76 [2020-08-21 20:41:38,049 INFO L226 Difference]: Without dead ends: 74 [2020-08-21 20:41:38,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-08-21 20:41:38,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-08-21 20:41:38,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-08-21 20:41:38,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-08-21 20:41:38,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 77 transitions. [2020-08-21 20:41:38,063 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 77 transitions. Word has length 23 [2020-08-21 20:41:38,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:41:38,063 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 77 transitions. [2020-08-21 20:41:38,063 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 20:41:38,063 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 77 transitions. [2020-08-21 20:41:38,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-21 20:41:38,066 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:41:38,067 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 20:41:38,067 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 20:41:38,067 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:41:38,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:41:38,067 INFO L82 PathProgramCache]: Analyzing trace with hash 402497124, now seen corresponding path program 1 times [2020-08-21 20:41:38,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:41:38,068 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1508530479] [2020-08-21 20:41:38,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:41:38,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:38,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:41:38,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:38,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 20:41:38,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1508530479] [2020-08-21 20:41:38,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 20:41:38,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 20:41:38,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949541923] [2020-08-21 20:41:38,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 20:41:38,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:41:38,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 20:41:38,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-21 20:41:38,170 INFO L87 Difference]: Start difference. First operand 74 states and 77 transitions. Second operand 6 states. [2020-08-21 20:41:38,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:41:38,600 INFO L93 Difference]: Finished difference Result 141 states and 147 transitions. [2020-08-21 20:41:38,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 20:41:38,600 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-08-21 20:41:38,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:41:38,602 INFO L225 Difference]: With dead ends: 141 [2020-08-21 20:41:38,602 INFO L226 Difference]: Without dead ends: 139 [2020-08-21 20:41:38,603 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-08-21 20:41:38,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-08-21 20:41:38,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 77. [2020-08-21 20:41:38,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-08-21 20:41:38,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2020-08-21 20:41:38,613 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 26 [2020-08-21 20:41:38,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:41:38,614 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2020-08-21 20:41:38,614 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 20:41:38,614 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2020-08-21 20:41:38,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-21 20:41:38,615 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:41:38,615 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 20:41:38,615 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 20:41:38,616 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:41:38,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:41:38,616 INFO L82 PathProgramCache]: Analyzing trace with hash 406230933, now seen corresponding path program 1 times [2020-08-21 20:41:38,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:41:38,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2038793320] [2020-08-21 20:41:38,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:41:38,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:38,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:41:38,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:38,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 20:41:38,680 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2038793320] [2020-08-21 20:41:38,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 20:41:38,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 20:41:38,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525536810] [2020-08-21 20:41:38,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 20:41:38,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:41:38,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 20:41:38,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-21 20:41:38,682 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand 6 states. [2020-08-21 20:41:38,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:41:38,994 INFO L93 Difference]: Finished difference Result 108 states and 114 transitions. [2020-08-21 20:41:38,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 20:41:38,996 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-08-21 20:41:38,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:41:38,999 INFO L225 Difference]: With dead ends: 108 [2020-08-21 20:41:38,999 INFO L226 Difference]: Without dead ends: 106 [2020-08-21 20:41:39,000 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 [2020-08-21 20:41:39,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-08-21 20:41:39,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 79. [2020-08-21 20:41:39,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-08-21 20:41:39,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2020-08-21 20:41:39,015 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 26 [2020-08-21 20:41:39,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:41:39,015 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2020-08-21 20:41:39,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 20:41:39,016 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2020-08-21 20:41:39,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-08-21 20:41:39,017 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:41:39,017 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] [2020-08-21 20:41:39,017 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-21 20:41:39,017 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:41:39,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:41:39,018 INFO L82 PathProgramCache]: Analyzing trace with hash -407487796, now seen corresponding path program 1 times [2020-08-21 20:41:39,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:41:39,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1965107281] [2020-08-21 20:41:39,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:41:39,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:39,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:41:39,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:39,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 20:41:39,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1965107281] [2020-08-21 20:41:39,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 20:41:39,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 20:41:39,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68270710] [2020-08-21 20:41:39,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 20:41:39,075 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:41:39,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 20:41:39,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-21 20:41:39,076 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand 6 states. [2020-08-21 20:41:39,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:41:39,336 INFO L93 Difference]: Finished difference Result 121 states and 127 transitions. [2020-08-21 20:41:39,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 20:41:39,337 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-08-21 20:41:39,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:41:39,338 INFO L225 Difference]: With dead ends: 121 [2020-08-21 20:41:39,338 INFO L226 Difference]: Without dead ends: 119 [2020-08-21 20:41:39,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-08-21 20:41:39,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-08-21 20:41:39,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 77. [2020-08-21 20:41:39,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-08-21 20:41:39,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2020-08-21 20:41:39,350 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 27 [2020-08-21 20:41:39,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:41:39,350 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2020-08-21 20:41:39,351 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 20:41:39,351 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2020-08-21 20:41:39,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-08-21 20:41:39,353 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:41:39,353 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] [2020-08-21 20:41:39,354 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-21 20:41:39,354 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:41:39,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:41:39,354 INFO L82 PathProgramCache]: Analyzing trace with hash -291739827, now seen corresponding path program 1 times [2020-08-21 20:41:39,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:41:39,355 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2031358852] [2020-08-21 20:41:39,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:41:39,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:39,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:41:39,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:39,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 20:41:39,429 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2031358852] [2020-08-21 20:41:39,429 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 20:41:39,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 20:41:39,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750837222] [2020-08-21 20:41:39,430 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 20:41:39,430 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:41:39,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 20:41:39,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-21 20:41:39,432 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand 6 states. [2020-08-21 20:41:39,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:41:39,586 INFO L93 Difference]: Finished difference Result 77 states and 82 transitions. [2020-08-21 20:41:39,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 20:41:39,587 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-08-21 20:41:39,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:41:39,587 INFO L225 Difference]: With dead ends: 77 [2020-08-21 20:41:39,587 INFO L226 Difference]: Without dead ends: 75 [2020-08-21 20:41:39,588 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-08-21 20:41:39,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-08-21 20:41:39,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-08-21 20:41:39,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-08-21 20:41:39,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2020-08-21 20:41:39,595 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 80 transitions. Word has length 27 [2020-08-21 20:41:39,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:41:39,595 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 80 transitions. [2020-08-21 20:41:39,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 20:41:39,595 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 80 transitions. [2020-08-21 20:41:39,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-08-21 20:41:39,596 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:41:39,596 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] [2020-08-21 20:41:39,597 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-21 20:41:39,597 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:41:39,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:41:39,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1188998893, now seen corresponding path program 1 times [2020-08-21 20:41:39,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:41:39,598 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1017045593] [2020-08-21 20:41:39,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:41:39,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:39,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:41:39,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:39,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 20:41:39,633 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1017045593] [2020-08-21 20:41:39,634 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 20:41:39,634 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 20:41:39,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072254882] [2020-08-21 20:41:39,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-21 20:41:39,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:41:39,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-21 20:41:39,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-21 20:41:39,635 INFO L87 Difference]: Start difference. First operand 75 states and 80 transitions. Second operand 4 states. [2020-08-21 20:41:39,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:41:39,769 INFO L93 Difference]: Finished difference Result 115 states and 121 transitions. [2020-08-21 20:41:39,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-21 20:41:39,769 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2020-08-21 20:41:39,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:41:39,770 INFO L225 Difference]: With dead ends: 115 [2020-08-21 20:41:39,770 INFO L226 Difference]: Without dead ends: 75 [2020-08-21 20:41:39,771 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-21 20:41:39,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-08-21 20:41:39,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-08-21 20:41:39,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-08-21 20:41:39,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 78 transitions. [2020-08-21 20:41:39,779 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 78 transitions. Word has length 29 [2020-08-21 20:41:39,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:41:39,780 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 78 transitions. [2020-08-21 20:41:39,780 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-21 20:41:39,780 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 78 transitions. [2020-08-21 20:41:39,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-08-21 20:41:39,781 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:41:39,781 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] [2020-08-21 20:41:39,781 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-21 20:41:39,782 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:41:39,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:41:39,782 INFO L82 PathProgramCache]: Analyzing trace with hash -1640998784, now seen corresponding path program 1 times [2020-08-21 20:41:39,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:41:39,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1639421887] [2020-08-21 20:41:39,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:41:39,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:39,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:41:39,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:39,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 20:41:39,857 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1639421887] [2020-08-21 20:41:39,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 20:41:39,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 20:41:39,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392246938] [2020-08-21 20:41:39,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 20:41:39,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:41:39,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 20:41:39,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 20:41:39,859 INFO L87 Difference]: Start difference. First operand 75 states and 78 transitions. Second operand 6 states. [2020-08-21 20:41:39,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:41:39,997 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2020-08-21 20:41:39,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 20:41:39,998 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-08-21 20:41:39,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:41:39,999 INFO L225 Difference]: With dead ends: 76 [2020-08-21 20:41:39,999 INFO L226 Difference]: Without dead ends: 74 [2020-08-21 20:41:40,000 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-08-21 20:41:40,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-08-21 20:41:40,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 73. [2020-08-21 20:41:40,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-08-21 20:41:40,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 76 transitions. [2020-08-21 20:41:40,006 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 76 transitions. Word has length 30 [2020-08-21 20:41:40,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:41:40,006 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 76 transitions. [2020-08-21 20:41:40,006 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 20:41:40,006 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 76 transitions. [2020-08-21 20:41:40,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-08-21 20:41:40,007 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:41:40,007 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 20:41:40,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-21 20:41:40,008 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:41:40,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:41:40,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1892106755, now seen corresponding path program 1 times [2020-08-21 20:41:40,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:41:40,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1030522317] [2020-08-21 20:41:40,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:41:40,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:40,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:41:40,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:40,105 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 20:41:40,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1030522317] [2020-08-21 20:41:40,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 20:41:40,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-21 20:41:40,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73607347] [2020-08-21 20:41:40,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 20:41:40,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:41:40,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 20:41:40,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 20:41:40,107 INFO L87 Difference]: Start difference. First operand 73 states and 76 transitions. Second operand 6 states. [2020-08-21 20:41:40,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:41:40,317 INFO L93 Difference]: Finished difference Result 111 states and 115 transitions. [2020-08-21 20:41:40,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 20:41:40,317 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-08-21 20:41:40,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:41:40,318 INFO L225 Difference]: With dead ends: 111 [2020-08-21 20:41:40,319 INFO L226 Difference]: Without dead ends: 109 [2020-08-21 20:41:40,319 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-08-21 20:41:40,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-08-21 20:41:40,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 70. [2020-08-21 20:41:40,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-08-21 20:41:40,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 73 transitions. [2020-08-21 20:41:40,325 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 73 transitions. Word has length 30 [2020-08-21 20:41:40,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:41:40,326 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 73 transitions. [2020-08-21 20:41:40,326 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 20:41:40,326 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 73 transitions. [2020-08-21 20:41:40,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-08-21 20:41:40,327 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:41:40,327 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] [2020-08-21 20:41:40,327 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-21 20:41:40,327 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:41:40,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:41:40,328 INFO L82 PathProgramCache]: Analyzing trace with hash 668648404, now seen corresponding path program 1 times [2020-08-21 20:41:40,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:41:40,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [171988531] [2020-08-21 20:41:40,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:41:40,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:40,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:41:40,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:40,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 20:41:40,381 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [171988531] [2020-08-21 20:41:40,381 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 20:41:40,381 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 20:41:40,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798406769] [2020-08-21 20:41:40,382 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 20:41:40,382 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:41:40,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 20:41:40,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-21 20:41:40,383 INFO L87 Difference]: Start difference. First operand 70 states and 73 transitions. Second operand 6 states. [2020-08-21 20:41:40,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:41:40,502 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2020-08-21 20:41:40,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 20:41:40,502 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-08-21 20:41:40,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:41:40,503 INFO L225 Difference]: With dead ends: 70 [2020-08-21 20:41:40,503 INFO L226 Difference]: Without dead ends: 68 [2020-08-21 20:41:40,504 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-08-21 20:41:40,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-08-21 20:41:40,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-08-21 20:41:40,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-08-21 20:41:40,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 71 transitions. [2020-08-21 20:41:40,510 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 71 transitions. Word has length 31 [2020-08-21 20:41:40,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:41:40,511 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 71 transitions. [2020-08-21 20:41:40,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 20:41:40,511 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 71 transitions. [2020-08-21 20:41:40,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-08-21 20:41:40,512 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:41:40,512 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 20:41:40,512 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-21 20:41:40,512 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:41:40,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:41:40,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1470784207, now seen corresponding path program 1 times [2020-08-21 20:41:40,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:41:40,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1225439242] [2020-08-21 20:41:40,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:41:40,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:40,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:41:40,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:40,574 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 20:41:40,575 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1225439242] [2020-08-21 20:41:40,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 20:41:40,575 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-21 20:41:40,576 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557579791] [2020-08-21 20:41:40,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 20:41:40,576 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:41:40,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 20:41:40,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 20:41:40,577 INFO L87 Difference]: Start difference. First operand 68 states and 71 transitions. Second operand 6 states. [2020-08-21 20:41:40,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:41:40,707 INFO L93 Difference]: Finished difference Result 69 states and 72 transitions. [2020-08-21 20:41:40,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 20:41:40,708 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-08-21 20:41:40,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:41:40,709 INFO L225 Difference]: With dead ends: 69 [2020-08-21 20:41:40,709 INFO L226 Difference]: Without dead ends: 67 [2020-08-21 20:41:40,710 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-08-21 20:41:40,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-08-21 20:41:40,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 62. [2020-08-21 20:41:40,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-08-21 20:41:40,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 64 transitions. [2020-08-21 20:41:40,715 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 64 transitions. Word has length 31 [2020-08-21 20:41:40,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:41:40,716 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 64 transitions. [2020-08-21 20:41:40,716 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 20:41:40,716 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 64 transitions. [2020-08-21 20:41:40,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-08-21 20:41:40,717 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:41:40,717 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] [2020-08-21 20:41:40,717 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-21 20:41:40,717 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:41:40,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:41:40,718 INFO L82 PathProgramCache]: Analyzing trace with hash -350608983, now seen corresponding path program 1 times [2020-08-21 20:41:40,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:41:40,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [968093978] [2020-08-21 20:41:40,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:41:40,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:40,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:41:40,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:40,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 20:41:40,788 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [968093978] [2020-08-21 20:41:40,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 20:41:40,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 20:41:40,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529886673] [2020-08-21 20:41:40,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 20:41:40,789 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:41:40,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 20:41:40,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 20:41:40,790 INFO L87 Difference]: Start difference. First operand 62 states and 64 transitions. Second operand 6 states. [2020-08-21 20:41:40,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:41:40,903 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2020-08-21 20:41:40,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 20:41:40,903 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2020-08-21 20:41:40,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:41:40,904 INFO L225 Difference]: With dead ends: 63 [2020-08-21 20:41:40,904 INFO L226 Difference]: Without dead ends: 61 [2020-08-21 20:41:40,905 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-08-21 20:41:40,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-08-21 20:41:40,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2020-08-21 20:41:40,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-08-21 20:41:40,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2020-08-21 20:41:40,910 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 62 transitions. Word has length 34 [2020-08-21 20:41:40,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:41:40,910 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 62 transitions. [2020-08-21 20:41:40,910 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 20:41:40,910 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2020-08-21 20:41:40,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-08-21 20:41:40,911 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:41:40,911 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] [2020-08-21 20:41:40,911 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-08-21 20:41:40,912 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:41:40,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:41:40,912 INFO L82 PathProgramCache]: Analyzing trace with hash 2016026591, now seen corresponding path program 1 times [2020-08-21 20:41:40,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:41:40,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1618117600] [2020-08-21 20:41:40,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:41:40,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:40,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:41:40,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:40,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 20:41:40,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1618117600] [2020-08-21 20:41:40,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 20:41:40,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 20:41:40,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903656629] [2020-08-21 20:41:40,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 20:41:40,969 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:41:40,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 20:41:40,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-08-21 20:41:40,970 INFO L87 Difference]: Start difference. First operand 60 states and 62 transitions. Second operand 7 states. [2020-08-21 20:41:41,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:41:41,114 INFO L93 Difference]: Finished difference Result 71 states and 74 transitions. [2020-08-21 20:41:41,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 20:41:41,114 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-08-21 20:41:41,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:41:41,115 INFO L225 Difference]: With dead ends: 71 [2020-08-21 20:41:41,115 INFO L226 Difference]: Without dead ends: 69 [2020-08-21 20:41:41,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-08-21 20:41:41,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-08-21 20:41:41,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 58. [2020-08-21 20:41:41,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-08-21 20:41:41,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2020-08-21 20:41:41,121 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 35 [2020-08-21 20:41:41,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:41:41,121 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2020-08-21 20:41:41,121 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 20:41:41,122 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2020-08-21 20:41:41,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-08-21 20:41:41,122 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:41:41,122 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] [2020-08-21 20:41:41,123 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-08-21 20:41:41,123 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:41:41,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:41:41,124 INFO L82 PathProgramCache]: Analyzing trace with hash -1371399406, now seen corresponding path program 1 times [2020-08-21 20:41:41,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:41:41,124 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [680851175] [2020-08-21 20:41:41,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:41:41,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:41,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:41:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:41,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 20:41:41,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [680851175] [2020-08-21 20:41:41,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 20:41:41,198 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 20:41:41,198 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70385649] [2020-08-21 20:41:41,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 20:41:41,199 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:41:41,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 20:41:41,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-21 20:41:41,199 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand 6 states. [2020-08-21 20:41:41,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:41:41,451 INFO L93 Difference]: Finished difference Result 91 states and 95 transitions. [2020-08-21 20:41:41,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 20:41:41,452 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-08-21 20:41:41,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:41:41,452 INFO L225 Difference]: With dead ends: 91 [2020-08-21 20:41:41,453 INFO L226 Difference]: Without dead ends: 89 [2020-08-21 20:41:41,453 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-08-21 20:41:41,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-08-21 20:41:41,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 61. [2020-08-21 20:41:41,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-08-21 20:41:41,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 63 transitions. [2020-08-21 20:41:41,459 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 63 transitions. Word has length 38 [2020-08-21 20:41:41,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:41:41,459 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 63 transitions. [2020-08-21 20:41:41,459 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 20:41:41,460 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2020-08-21 20:41:41,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-08-21 20:41:41,460 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:41:41,461 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] [2020-08-21 20:41:41,461 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-08-21 20:41:41,461 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:41:41,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:41:41,461 INFO L82 PathProgramCache]: Analyzing trace with hash 436294569, now seen corresponding path program 1 times [2020-08-21 20:41:41,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:41:41,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1158729587] [2020-08-21 20:41:41,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:41:41,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:41,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:41:41,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:41,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 20:41:41,514 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1158729587] [2020-08-21 20:41:41,514 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 20:41:41,514 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 20:41:41,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245297491] [2020-08-21 20:41:41,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 20:41:41,515 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:41:41,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 20:41:41,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-21 20:41:41,515 INFO L87 Difference]: Start difference. First operand 61 states and 63 transitions. Second operand 6 states. [2020-08-21 20:41:41,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:41:41,676 INFO L93 Difference]: Finished difference Result 61 states and 63 transitions. [2020-08-21 20:41:41,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 20:41:41,676 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2020-08-21 20:41:41,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:41:41,677 INFO L225 Difference]: With dead ends: 61 [2020-08-21 20:41:41,678 INFO L226 Difference]: Without dead ends: 59 [2020-08-21 20:41:41,678 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-08-21 20:41:41,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-08-21 20:41:41,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-08-21 20:41:41,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-08-21 20:41:41,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2020-08-21 20:41:41,683 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 39 [2020-08-21 20:41:41,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:41:41,684 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2020-08-21 20:41:41,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 20:41:41,684 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2020-08-21 20:41:41,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-08-21 20:41:41,685 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:41:41,685 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] [2020-08-21 20:41:41,685 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-08-21 20:41:41,685 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:41:41,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:41:41,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1627614740, now seen corresponding path program 1 times [2020-08-21 20:41:41,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:41:41,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2069452488] [2020-08-21 20:41:41,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:41:41,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:41,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:41:41,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:41,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 20:41:41,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2069452488] [2020-08-21 20:41:41,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 20:41:41,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 20:41:41,752 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610672561] [2020-08-21 20:41:41,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 20:41:41,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:41:41,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 20:41:41,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 20:41:41,757 INFO L87 Difference]: Start difference. First operand 59 states and 61 transitions. Second operand 6 states. [2020-08-21 20:41:41,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:41:41,908 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2020-08-21 20:41:41,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 20:41:41,908 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 41 [2020-08-21 20:41:41,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:41:41,909 INFO L225 Difference]: With dead ends: 70 [2020-08-21 20:41:41,909 INFO L226 Difference]: Without dead ends: 68 [2020-08-21 20:41:41,910 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-08-21 20:41:41,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-08-21 20:41:41,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2020-08-21 20:41:41,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-08-21 20:41:41,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2020-08-21 20:41:41,915 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 70 transitions. Word has length 41 [2020-08-21 20:41:41,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:41:41,916 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 70 transitions. [2020-08-21 20:41:41,916 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 20:41:41,916 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 70 transitions. [2020-08-21 20:41:41,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-08-21 20:41:41,917 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:41:41,917 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] [2020-08-21 20:41:41,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-08-21 20:41:41,917 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:41:41,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:41:41,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1083553822, now seen corresponding path program 1 times [2020-08-21 20:41:41,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:41:41,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [465779146] [2020-08-21 20:41:41,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:41:41,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:41,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:41:41,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:41,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 20:41:41,970 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [465779146] [2020-08-21 20:41:41,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 20:41:41,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 20:41:41,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006164726] [2020-08-21 20:41:41,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 20:41:41,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:41:41,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 20:41:41,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-21 20:41:41,972 INFO L87 Difference]: Start difference. First operand 66 states and 70 transitions. Second operand 6 states. [2020-08-21 20:41:42,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:41:42,162 INFO L93 Difference]: Finished difference Result 68 states and 71 transitions. [2020-08-21 20:41:42,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 20:41:42,163 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2020-08-21 20:41:42,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:41:42,164 INFO L225 Difference]: With dead ends: 68 [2020-08-21 20:41:42,164 INFO L226 Difference]: Without dead ends: 66 [2020-08-21 20:41:42,164 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-21 20:41:42,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-08-21 20:41:42,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2020-08-21 20:41:42,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-08-21 20:41:42,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2020-08-21 20:41:42,170 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 42 [2020-08-21 20:41:42,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:41:42,171 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2020-08-21 20:41:42,171 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 20:41:42,171 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2020-08-21 20:41:42,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-08-21 20:41:42,172 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:41:42,173 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] [2020-08-21 20:41:42,173 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-08-21 20:41:42,173 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:41:42,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:41:42,174 INFO L82 PathProgramCache]: Analyzing trace with hash -769566670, now seen corresponding path program 1 times [2020-08-21 20:41:42,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:41:42,174 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [341212591] [2020-08-21 20:41:42,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:41:42,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:42,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:41:42,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:42,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 20:41:42,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [341212591] [2020-08-21 20:41:42,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 20:41:42,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 20:41:42,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270064645] [2020-08-21 20:41:42,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 20:41:42,244 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:41:42,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 20:41:42,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-21 20:41:42,245 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand 6 states. [2020-08-21 20:41:42,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:41:42,541 INFO L93 Difference]: Finished difference Result 90 states and 95 transitions. [2020-08-21 20:41:42,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 20:41:42,542 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2020-08-21 20:41:42,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:41:42,543 INFO L225 Difference]: With dead ends: 90 [2020-08-21 20:41:42,543 INFO L226 Difference]: Without dead ends: 88 [2020-08-21 20:41:42,543 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-08-21 20:41:42,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-08-21 20:41:42,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 69. [2020-08-21 20:41:42,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-08-21 20:41:42,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 74 transitions. [2020-08-21 20:41:42,549 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 74 transitions. Word has length 43 [2020-08-21 20:41:42,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:41:42,549 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 74 transitions. [2020-08-21 20:41:42,549 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 20:41:42,549 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 74 transitions. [2020-08-21 20:41:42,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-08-21 20:41:42,550 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:41:42,550 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] [2020-08-21 20:41:42,550 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-08-21 20:41:42,550 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:41:42,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:41:42,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1913240228, now seen corresponding path program 1 times [2020-08-21 20:41:42,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:41:42,551 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [534746358] [2020-08-21 20:41:42,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:41:42,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:42,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:41:42,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:42,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 20:41:42,603 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [534746358] [2020-08-21 20:41:42,604 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 20:41:42,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 20:41:42,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510127631] [2020-08-21 20:41:42,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 20:41:42,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:41:42,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 20:41:42,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-21 20:41:42,605 INFO L87 Difference]: Start difference. First operand 69 states and 74 transitions. Second operand 6 states. [2020-08-21 20:41:42,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:41:42,779 INFO L93 Difference]: Finished difference Result 75 states and 79 transitions. [2020-08-21 20:41:42,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 20:41:42,780 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2020-08-21 20:41:42,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:41:42,781 INFO L225 Difference]: With dead ends: 75 [2020-08-21 20:41:42,781 INFO L226 Difference]: Without dead ends: 73 [2020-08-21 20:41:42,781 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-08-21 20:41:42,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-08-21 20:41:42,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 67. [2020-08-21 20:41:42,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-08-21 20:41:42,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 72 transitions. [2020-08-21 20:41:42,786 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 72 transitions. Word has length 44 [2020-08-21 20:41:42,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:41:42,787 INFO L479 AbstractCegarLoop]: Abstraction has 67 states and 72 transitions. [2020-08-21 20:41:42,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 20:41:42,787 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 72 transitions. [2020-08-21 20:41:42,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-08-21 20:41:42,787 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:41:42,788 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 20:41:42,788 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-08-21 20:41:42,788 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:41:42,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:41:42,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1562566919, now seen corresponding path program 1 times [2020-08-21 20:41:42,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:41:42,789 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [773526678] [2020-08-21 20:41:42,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:41:42,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:42,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:41:42,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:42,865 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 20:41:42,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [773526678] [2020-08-21 20:41:42,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 20:41:42,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-21 20:41:42,865 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214120961] [2020-08-21 20:41:42,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 20:41:42,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:41:42,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 20:41:42,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 20:41:42,867 INFO L87 Difference]: Start difference. First operand 67 states and 72 transitions. Second operand 6 states. [2020-08-21 20:41:42,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:41:42,989 INFO L93 Difference]: Finished difference Result 67 states and 72 transitions. [2020-08-21 20:41:42,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 20:41:42,990 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2020-08-21 20:41:42,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:41:42,991 INFO L225 Difference]: With dead ends: 67 [2020-08-21 20:41:42,991 INFO L226 Difference]: Without dead ends: 65 [2020-08-21 20:41:42,992 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-08-21 20:41:42,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-08-21 20:41:42,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-08-21 20:41:42,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-08-21 20:41:42,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2020-08-21 20:41:42,999 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 44 [2020-08-21 20:41:42,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:41:42,999 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2020-08-21 20:41:43,000 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 20:41:43,000 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2020-08-21 20:41:43,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-08-21 20:41:43,000 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:41:43,001 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 20:41:43,001 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-08-21 20:41:43,001 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:41:43,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:41:43,002 INFO L82 PathProgramCache]: Analyzing trace with hash 790604971, now seen corresponding path program 1 times [2020-08-21 20:41:43,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:41:43,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2105529121] [2020-08-21 20:41:43,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:41:43,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:43,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:41:43,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:43,086 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-08-21 20:41:43,086 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2105529121] [2020-08-21 20:41:43,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 20:41:43,086 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 20:41:43,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210096815] [2020-08-21 20:41:43,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 20:41:43,087 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:41:43,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 20:41:43,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-21 20:41:43,088 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand 6 states. [2020-08-21 20:41:43,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:41:43,311 INFO L93 Difference]: Finished difference Result 77 states and 82 transitions. [2020-08-21 20:41:43,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 20:41:43,312 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2020-08-21 20:41:43,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:41:43,313 INFO L225 Difference]: With dead ends: 77 [2020-08-21 20:41:43,313 INFO L226 Difference]: Without dead ends: 75 [2020-08-21 20:41:43,314 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-08-21 20:41:43,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-08-21 20:41:43,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 55. [2020-08-21 20:41:43,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-08-21 20:41:43,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2020-08-21 20:41:43,319 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 49 [2020-08-21 20:41:43,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:41:43,319 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2020-08-21 20:41:43,320 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 20:41:43,320 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2020-08-21 20:41:43,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-08-21 20:41:43,320 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:41:43,320 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 20:41:43,321 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-08-21 20:41:43,321 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_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, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:41:43,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:41:43,321 INFO L82 PathProgramCache]: Analyzing trace with hash 705971477, now seen corresponding path program 1 times [2020-08-21 20:41:43,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:41:43,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [547642290] [2020-08-21 20:41:43,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:41:43,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:43,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:41:43,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:41:43,370 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-08-21 20:41:43,370 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [547642290] [2020-08-21 20:41:43,371 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 20:41:43,371 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 20:41:43,371 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820977520] [2020-08-21 20:41:43,372 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 20:41:43,372 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:41:43,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 20:41:43,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-21 20:41:43,372 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand 5 states. [2020-08-21 20:41:43,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:41:43,492 INFO L93 Difference]: Finished difference Result 60 states and 63 transitions. [2020-08-21 20:41:43,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 20:41:43,493 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2020-08-21 20:41:43,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:41:43,494 INFO L225 Difference]: With dead ends: 60 [2020-08-21 20:41:43,494 INFO L226 Difference]: Without dead ends: 0 [2020-08-21 20:41:43,495 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-08-21 20:41:43,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-21 20:41:43,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-21 20:41:43,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-21 20:41:43,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-21 20:41:43,496 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2020-08-21 20:41:43,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:41:43,496 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-21 20:41:43,496 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 20:41:43,497 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-21 20:41:43,497 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-21 20:41:43,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-08-21 20:41:43,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-21 20:41:43,898 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 35 [2020-08-21 20:41:44,204 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2020-08-21 20:41:44,500 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 32 [2020-08-21 20:41:44,846 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 70 [2020-08-21 20:41:44,848 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-21 20:41:44,849 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__return_main~0 |old(~__return_main~0)|) (= ~__return_375~0 |old(~__return_375~0)|)) [2020-08-21 20:41:44,849 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-21 20:41:44,849 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-21 20:41:44,849 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-21 20:41:44,849 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-21 20:41:44,850 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-21 20:41:44,850 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-08-21 20:41:44,850 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-08-21 20:41:44,850 INFO L268 CegarLoopResult]: For program point L5-2(lines 4 6) no Hoare annotation was computed. [2020-08-21 20:41:44,850 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-08-21 20:41:44,850 INFO L268 CegarLoopResult]: For program point L192(lines 192 352) no Hoare annotation was computed. [2020-08-21 20:41:44,850 INFO L268 CegarLoopResult]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 123) no Hoare annotation was computed. [2020-08-21 20:41:44,850 INFO L268 CegarLoopResult]: For program point L382(lines 382 391) no Hoare annotation was computed. [2020-08-21 20:41:44,850 INFO L268 CegarLoopResult]: For program point L93(lines 93 410) no Hoare annotation was computed. [2020-08-21 20:41:44,851 INFO L268 CegarLoopResult]: For program point L27(lines 27 435) no Hoare annotation was computed. [2020-08-21 20:41:44,851 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 437) no Hoare annotation was computed. [2020-08-21 20:41:44,851 INFO L268 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-08-21 20:41:44,852 INFO L264 CegarLoopResult]: At program point L399(lines 129 400) the Hoare annotation is: (and (< main_~main__cp~0 main_~main__urilen~0) (= main_~__VERIFIER_assert__cond~3 1) (let ((.cse0 (< 0 main_~main__scheme~0)) (.cse1 (not (= main_~__VERIFIER_assert__cond~0 0))) (.cse2 (<= 1 main_~main__cp~0)) (.cse3 (not (= main_~__VERIFIER_assert__cond~1 0)))) (or (and .cse0 .cse1 (not (= main_~__VERIFIER_assert__cond~2 0)) (not (= main_~__VERIFIER_assert__cond~16 0)) .cse2 .cse3) (and .cse0 .cse1 (= main_~__VERIFIER_assert__cond~2 1) .cse2 .cse3))) (= |old(~__return_375~0)| ~__return_375~0)) [2020-08-21 20:41:44,852 INFO L268 CegarLoopResult]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 253) no Hoare annotation was computed. [2020-08-21 20:41:44,852 INFO L268 CegarLoopResult]: For program point L102(lines 102 409) no Hoare annotation was computed. [2020-08-21 20:41:44,853 INFO L268 CegarLoopResult]: For program point L69(lines 69 414) no Hoare annotation was computed. [2020-08-21 20:41:44,854 INFO L264 CegarLoopResult]: At program point L325(lines 260 326) the Hoare annotation is: (let ((.cse17 (+ main_~main__cp~0 1))) (let ((.cse0 (not (= main_~__VERIFIER_assert__cond~5 0))) (.cse1 (= main_~__VERIFIER_assert__cond~10 1)) (.cse2 (< 0 main_~main__scheme~0)) (.cse3 (not (= main_~main__urilen~0 .cse17))) (.cse4 (not (= main_~__VERIFIER_assert__cond~0 0))) (.cse5 (not (= main_~__VERIFIER_assert__cond~2 0))) (.cse6 (not (= main_~__VERIFIER_assert__cond~11 0))) (.cse7 (= main_~__VERIFIER_assert__cond~3 1)) (.cse8 (not (= main_~__VERIFIER_assert__cond~4 0))) (.cse9 (= |old(~__return_375~0)| ~__return_375~0)) (.cse10 (not (= main_~__VERIFIER_assert__cond~8 0))) (.cse11 (<= .cse17 main_~main__urilen~0)) (.cse12 (= main_~__VERIFIER_assert__cond~9 1)) (.cse13 (not (= main_~__VERIFIER_assert__cond~6 0))) (.cse14 (not (= main_~__VERIFIER_assert__cond~7 0))) (.cse15 (<= 1 main_~main__cp~0)) (.cse16 (not (= main_~__VERIFIER_assert__cond~1 0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (<= 1 main_~main__c~0) .cse10 .cse11 .cse12 .cse13 .cse14 (not (= main_~__VERIFIER_assert__cond~15 0)) (not (= main_~__VERIFIER_assert__cond~13 0)) (not (= main_~__VERIFIER_assert__cond~14 0)) .cse15 (not (= main_~__VERIFIER_assert__cond~12 0)) .cse16) (and .cse0 .cse1 .cse2 (<= (+ main_~main__c~0 2) main_~main__tokenlen~0) .cse3 .cse4 .cse5 .cse6 (= main_~main__c~0 0) .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16)))) [2020-08-21 20:41:44,854 INFO L268 CegarLoopResult]: For program point L292(lines 292 316) no Hoare annotation was computed. [2020-08-21 20:41:44,854 INFO L268 CegarLoopResult]: For program point L160(lines 160 357) no Hoare annotation was computed. [2020-08-21 20:41:44,854 INFO L268 CegarLoopResult]: For program point L61(lines 61 420) no Hoare annotation was computed. [2020-08-21 20:41:44,854 INFO L268 CegarLoopResult]: For program point L251(lines 251 327) no Hoare annotation was computed. [2020-08-21 20:41:44,855 INFO L268 CegarLoopResult]: For program point L185(lines 185 353) no Hoare annotation was computed. [2020-08-21 20:41:44,855 INFO L268 CegarLoopResult]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 175) no Hoare annotation was computed. [2020-08-21 20:41:44,855 INFO L264 CegarLoopResult]: At program point L408(lines 102 409) the Hoare annotation is: (and (not (= main_~__VERIFIER_assert__cond~0 0)) (= |old(~__return_375~0)| ~__return_375~0)) [2020-08-21 20:41:44,855 INFO L268 CegarLoopResult]: For program point L210(lines 210 344) no Hoare annotation was computed. [2020-08-21 20:41:44,855 INFO L268 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-08-21 20:41:44,856 INFO L268 CegarLoopResult]: For program point L45(lines 45 432) no Hoare annotation was computed. [2020-08-21 20:41:44,856 INFO L268 CegarLoopResult]: For program point L268(lines 268 320) no Hoare annotation was computed. [2020-08-21 20:41:44,856 INFO L268 CegarLoopResult]: For program point mainErr14ASSERT_VIOLATIONERROR_FUNCTION(line 294) no Hoare annotation was computed. [2020-08-21 20:41:44,856 INFO L268 CegarLoopResult]: For program point L202(lines 202 351) no Hoare annotation was computed. [2020-08-21 20:41:44,857 INFO L268 CegarLoopResult]: For program point L260(lines 260 326) no Hoare annotation was computed. [2020-08-21 20:41:44,857 INFO L268 CegarLoopResult]: For program point L384(line 384) no Hoare annotation was computed. [2020-08-21 20:41:44,857 INFO L268 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-08-21 20:41:44,857 INFO L268 CegarLoopResult]: For program point L153(lines 153 358) no Hoare annotation was computed. [2020-08-21 20:41:44,857 INFO L268 CegarLoopResult]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 155) no Hoare annotation was computed. [2020-08-21 20:41:44,857 INFO L268 CegarLoopResult]: For program point L21(lines 21 436) no Hoare annotation was computed. [2020-08-21 20:41:44,857 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 11 437) no Hoare annotation was computed. [2020-08-21 20:41:44,857 INFO L268 CegarLoopResult]: For program point mainErr13ASSERT_VIOLATIONERROR_FUNCTION(line 282) no Hoare annotation was computed. [2020-08-21 20:41:44,857 INFO L268 CegarLoopResult]: For program point L294(line 294) no Hoare annotation was computed. [2020-08-21 20:41:44,858 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 83) no Hoare annotation was computed. [2020-08-21 20:41:44,858 INFO L268 CegarLoopResult]: For program point L63(lines 63 415) no Hoare annotation was computed. [2020-08-21 20:41:44,858 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 11 437) the Hoare annotation is: (= |old(~__return_375~0)| ~__return_375~0) [2020-08-21 20:41:44,858 INFO L268 CegarLoopResult]: For program point L253(line 253) no Hoare annotation was computed. [2020-08-21 20:41:44,858 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-08-21 20:41:44,858 INFO L268 CegarLoopResult]: For program point L121(lines 121 401) no Hoare annotation was computed. [2020-08-21 20:41:44,858 INFO L268 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-08-21 20:41:44,858 INFO L268 CegarLoopResult]: For program point L270(line 270) no Hoare annotation was computed. [2020-08-21 20:41:44,859 INFO L268 CegarLoopResult]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 212) no Hoare annotation was computed. [2020-08-21 20:41:44,859 INFO L268 CegarLoopResult]: For program point L39(lines 39 433) no Hoare annotation was computed. [2020-08-21 20:41:44,859 INFO L268 CegarLoopResult]: For program point mainErr16ASSERT_VIOLATIONERROR_FUNCTION(line 372) no Hoare annotation was computed. [2020-08-21 20:41:44,859 INFO L268 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-08-21 20:41:44,859 INFO L268 CegarLoopResult]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 187) no Hoare annotation was computed. [2020-08-21 20:41:44,859 INFO L268 CegarLoopResult]: For program point L370(lines 370 393) no Hoare annotation was computed. [2020-08-21 20:41:44,859 INFO L268 CegarLoopResult]: For program point L81(lines 81 412) no Hoare annotation was computed. [2020-08-21 20:41:44,859 INFO L268 CegarLoopResult]: For program point L304(lines 304 314) no Hoare annotation was computed. [2020-08-21 20:41:44,860 INFO L268 CegarLoopResult]: For program point mainErr15ASSERT_VIOLATIONERROR_FUNCTION(line 306) no Hoare annotation was computed. [2020-08-21 20:41:44,860 INFO L268 CegarLoopResult]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 111) no Hoare annotation was computed. [2020-08-21 20:41:44,860 INFO L268 CegarLoopResult]: For program point L222(lines 222 342) no Hoare annotation was computed. [2020-08-21 20:41:44,860 INFO L268 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-08-21 20:41:44,860 INFO L268 CegarLoopResult]: For program point L57(lines 57 430) no Hoare annotation was computed. [2020-08-21 20:41:44,860 INFO L264 CegarLoopResult]: At program point L313(lines 228 342) the Hoare annotation is: (let ((.cse17 (+ main_~main__cp~0 1))) (let ((.cse4 (not (= main_~__VERIFIER_assert__cond~11 0))) (.cse9 (not (= main_~__VERIFIER_assert__cond~8 0))) (.cse11 (not (= main_~__VERIFIER_assert__cond~10 0))) (.cse0 (not (= main_~__VERIFIER_assert__cond~5 0))) (.cse1 (< 0 main_~main__scheme~0)) (.cse2 (not (= main_~__VERIFIER_assert__cond~0 0))) (.cse3 (not (= main_~__VERIFIER_assert__cond~2 0))) (.cse5 (= main_~main__c~0 0)) (.cse6 (= main_~__VERIFIER_assert__cond~3 1)) (.cse7 (not (= main_~__VERIFIER_assert__cond~4 0))) (.cse8 (= |old(~__return_375~0)| ~__return_375~0)) (.cse10 (<= .cse17 main_~main__urilen~0)) (.cse12 (= main_~__VERIFIER_assert__cond~9 1)) (.cse13 (not (= main_~__VERIFIER_assert__cond~6 0))) (.cse14 (not (= main_~__VERIFIER_assert__cond~7 0))) (.cse15 (<= 1 main_~main__cp~0)) (.cse16 (not (= main_~__VERIFIER_assert__cond~1 0)))) (or (and .cse0 .cse1 (<= (+ main_~main__c~0 2) main_~main__tokenlen~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse6 .cse7 .cse8 (<= 1 main_~main__c~0) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 (not (= main_~__VERIFIER_assert__cond~15 0)) (not (= main_~__VERIFIER_assert__cond~13 0)) (not (= main_~__VERIFIER_assert__cond~14 0)) .cse15 (not (= main_~__VERIFIER_assert__cond~12 0)) .cse16) (and (< .cse17 main_~main__urilen~0) .cse0 .cse1 .cse2 .cse3 .cse5 .cse6 .cse7 .cse8 .cse10 .cse12 .cse13 .cse14 .cse15 (= main_~__VERIFIER_assert__cond~8 1) .cse16)))) [2020-08-21 20:41:44,861 INFO L268 CegarLoopResult]: For program point L280(lines 280 318) no Hoare annotation was computed. [2020-08-21 20:41:44,861 INFO L268 CegarLoopResult]: For program point L239(lines 239 329) no Hoare annotation was computed. [2020-08-21 20:41:44,861 INFO L268 CegarLoopResult]: For program point L173(lines 173 355) no Hoare annotation was computed. [2020-08-21 20:41:44,861 INFO L268 CegarLoopResult]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 241) no Hoare annotation was computed. [2020-08-21 20:41:44,861 INFO L268 CegarLoopResult]: For program point L33(lines 33 434) no Hoare annotation was computed. [2020-08-21 20:41:44,861 INFO L268 CegarLoopResult]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 95) no Hoare annotation was computed. [2020-08-21 20:41:44,861 INFO L268 CegarLoopResult]: For program point L372(line 372) no Hoare annotation was computed. [2020-08-21 20:41:44,861 INFO L268 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-08-21 20:41:44,861 INFO L268 CegarLoopResult]: For program point L306(line 306) no Hoare annotation was computed. [2020-08-21 20:41:44,862 INFO L268 CegarLoopResult]: For program point L141(lines 141 360) no Hoare annotation was computed. [2020-08-21 20:41:44,862 INFO L268 CegarLoopResult]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 224) no Hoare annotation was computed. [2020-08-21 20:41:44,862 INFO L268 CegarLoopResult]: For program point L232(lines 232 336) no Hoare annotation was computed. [2020-08-21 20:41:44,862 INFO L268 CegarLoopResult]: For program point mainErr17ASSERT_VIOLATIONERROR_FUNCTION(line 384) no Hoare annotation was computed. [2020-08-21 20:41:44,862 INFO L268 CegarLoopResult]: For program point L133(lines 133 395) no Hoare annotation was computed. [2020-08-21 20:41:44,862 INFO L268 CegarLoopResult]: For program point L224(line 224) no Hoare annotation was computed. [2020-08-21 20:41:44,862 INFO L268 CegarLoopResult]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 143) no Hoare annotation was computed. [2020-08-21 20:41:44,862 INFO L268 CegarLoopResult]: For program point L59(lines 59 425) no Hoare annotation was computed. [2020-08-21 20:41:44,863 INFO L268 CegarLoopResult]: For program point L282(line 282) no Hoare annotation was computed. [2020-08-21 20:41:44,863 INFO L268 CegarLoopResult]: For program point L51(lines 51 431) no Hoare annotation was computed. [2020-08-21 20:41:44,863 INFO L268 CegarLoopResult]: For program point L241(line 241) no Hoare annotation was computed. [2020-08-21 20:41:44,863 INFO L268 CegarLoopResult]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 270) no Hoare annotation was computed. [2020-08-21 20:41:44,863 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-08-21 20:41:44,863 INFO L268 CegarLoopResult]: For program point L109(lines 109 403) no Hoare annotation was computed. [2020-08-21 20:41:44,864 INFO L264 CegarLoopResult]: At program point L390(lines 127 401) the Hoare annotation is: (and (let ((.cse0 (< 0 main_~main__scheme~0)) (.cse1 (not (= main_~__VERIFIER_assert__cond~0 0))) (.cse2 (= main_~__VERIFIER_assert__cond~3 1)) (.cse3 (<= 1 main_~main__cp~0)) (.cse4 (not (= main_~__VERIFIER_assert__cond~1 0)))) (or (and .cse0 .cse1 .cse2 (= main_~__VERIFIER_assert__cond~2 1) .cse3 .cse4) (and .cse0 .cse1 (not (= main_~__VERIFIER_assert__cond~2 0)) .cse2 (not (= main_~__VERIFIER_assert__cond~16 0)) (not (= main_~__VERIFIER_assert__cond~17 0)) .cse3 .cse4))) (= |old(~__return_375~0)| ~__return_375~0) (<= (+ main_~main__cp~0 1) main_~main__urilen~0)) [2020-08-21 20:41:44,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 08:41:44 BoogieIcfgContainer [2020-08-21 20:41:44,916 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 20:41:44,917 INFO L168 Benchmark]: Toolchain (without parser) took 9446.54 ms. Allocated memory was 141.0 MB in the beginning and 317.7 MB in the end (delta: 176.7 MB). Free memory was 102.5 MB in the beginning and 143.0 MB in the end (delta: -40.4 MB). Peak memory consumption was 159.1 MB. Max. memory is 7.1 GB. [2020-08-21 20:41:44,918 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-21 20:41:44,919 INFO L168 Benchmark]: CACSL2BoogieTranslator took 410.06 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 102.3 MB in the beginning and 183.2 MB in the end (delta: -80.8 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2020-08-21 20:41:44,919 INFO L168 Benchmark]: Boogie Preprocessor took 46.54 ms. Allocated memory is still 204.5 MB. Free memory was 183.2 MB in the beginning and 180.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-08-21 20:41:44,920 INFO L168 Benchmark]: RCFGBuilder took 556.07 ms. Allocated memory is still 204.5 MB. Free memory was 180.9 MB in the beginning and 153.1 MB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. [2020-08-21 20:41:44,920 INFO L168 Benchmark]: TraceAbstraction took 8429.27 ms. Allocated memory was 204.5 MB in the beginning and 317.7 MB in the end (delta: 113.2 MB). Free memory was 152.4 MB in the beginning and 143.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 145.6 MB. Max. memory is 7.1 GB. [2020-08-21 20:41:44,923 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 410.06 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 102.3 MB in the beginning and 183.2 MB in the end (delta: -80.8 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 46.54 ms. Allocated memory is still 204.5 MB. Free memory was 183.2 MB in the beginning and 180.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 556.07 ms. Allocated memory is still 204.5 MB. Free memory was 180.9 MB in the beginning and 153.1 MB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 8429.27 ms. Allocated memory was 204.5 MB in the beginning and 317.7 MB in the end (delta: 113.2 MB). Free memory was 152.4 MB in the beginning and 143.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 145.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 83]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 306]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 372]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 187]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 212]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 282]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 224]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 241]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 294]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 270]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 143]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 253]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 384]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 111]: 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: 155]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 123]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 95]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: (((((((0 < main__scheme && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && __VERIFIER_assert__cond == 1) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)) || (((((((0 < main__scheme && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0))) && \old(__return_375) == __return_375) && main__cp + 1 <= main__urilen - InvariantResult [Line: 102]: Loop Invariant Derived loop invariant: !(__VERIFIER_assert__cond == 0) && \old(__return_375) == __return_375 - InvariantResult [Line: 228]: Loop Invariant Derived loop invariant: ((((((((((((((((((!(__VERIFIER_assert__cond == 0) && 0 < main__scheme) && main__c + 2 <= main__tokenlen) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && main__c == 0) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && \old(__return_375) == __return_375) && !(__VERIFIER_assert__cond == 0)) && main__cp + 1 <= main__urilen) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)) || ((((((((((((((((((((!(__VERIFIER_assert__cond == 0) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && \old(__return_375) == __return_375) && 1 <= main__c) && !(__VERIFIER_assert__cond == 0)) && main__cp + 1 <= main__urilen) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0))) || (((((((((((((((main__cp + 1 < main__urilen && !(__VERIFIER_assert__cond == 0)) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && main__c == 0) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && \old(__return_375) == __return_375) && main__cp + 1 <= main__urilen) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: ((main__cp < main__urilen && __VERIFIER_assert__cond == 1) && ((((((0 < main__scheme && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)) || ((((0 < main__scheme && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)))) && \old(__return_375) == __return_375 - InvariantResult [Line: 260]: Loop Invariant Derived loop invariant: (((((((((((((((((((((!(__VERIFIER_assert__cond == 0) && __VERIFIER_assert__cond == 1) && 0 < main__scheme) && !(main__urilen == main__cp + 1)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && \old(__return_375) == __return_375) && 1 <= main__c) && !(__VERIFIER_assert__cond == 0)) && main__cp + 1 <= main__urilen) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) || ((((((((((((((((((!(__VERIFIER_assert__cond == 0) && __VERIFIER_assert__cond == 1) && 0 < main__scheme) && main__c + 2 <= main__tokenlen) && !(main__urilen == main__cp + 1)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && main__c == 0) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && \old(__return_375) == __return_375) && !(__VERIFIER_assert__cond == 0)) && main__cp + 1 <= main__urilen) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 91 locations, 18 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.9s, OverallIterations: 24, TraceHistogramMax: 2, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1392 SDtfs, 3840 SDslu, 353 SDs, 0 SdLazy, 2587 SolverSat, 194 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 265 GetRequests, 85 SyntacticMatches, 2 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred 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, 24 MinimizatonAttempts, 288 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 17 NumberOfFragments, 503 HoareAnnotationTreeSize, 9 FomulaSimplifications, 76237 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 9 FomulaSimplificationsInter, 2678 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 801 NumberOfCodeBlocks, 801 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 777 ConstructedInterpolants, 0 QuantifiedInterpolants, 58141 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 21 PerfectInterpolantSequences, 13/19 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...