/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=5 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-get-tag.i.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 05:19:27,508 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 05:19:27,511 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 05:19:27,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 05:19:27,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 05:19:27,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 05:19:27,543 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 05:19:27,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 05:19:27,547 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 05:19:27,550 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 05:19:27,551 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 05:19:27,552 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 05:19:27,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 05:19:27,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 05:19:27,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 05:19:27,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 05:19:27,556 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 05:19:27,557 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 05:19:27,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 05:19:27,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 05:19:27,567 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 05:19:27,568 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 05:19:27,571 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 05:19:27,573 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 05:19:27,578 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-19 05:19:27,590 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 05:19:27,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 05:19:27,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 05:19:27,604 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 [2020-08-19 05:19:27,647 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 05:19:27,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 05:19:27,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 05:19:27,649 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 05:19:27,649 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 05:19:27,650 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 05:19:27,650 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 05:19:27,650 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 05:19:27,650 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 05:19:27,651 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 05:19:27,651 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 05:19:27,651 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 05:19:27,651 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 05:19:27,651 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 05:19:27,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 05:19:27,652 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 05:19:27,652 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 05:19:27,652 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 05:19:27,652 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 05:19:27,653 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 05:19:27,654 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 05:19:27,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 05:19:27,655 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 05:19:27,655 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 05:19:27,655 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 05:19:27,655 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 05:19:27,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 05:19:27,656 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 05:19:27,656 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 05:19:27,656 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=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3; [2020-08-19 05:19:27,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 05:19:28,006 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 05:19:28,009 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 05:19:28,012 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 05:19:28,012 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 05:19:28,013 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-get-tag.i.v+nlh-reducer.c [2020-08-19 05:19:28,077 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e8f4ce63/cc7df05e30f84a689d66faf6c13c9052/FLAG597c8587a [2020-08-19 05:19:28,594 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 05:19:28,595 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.v+nlh-reducer.c [2020-08-19 05:19:28,607 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e8f4ce63/cc7df05e30f84a689d66faf6c13c9052/FLAG597c8587a [2020-08-19 05:19:28,913 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e8f4ce63/cc7df05e30f84a689d66faf6c13c9052 [2020-08-19 05:19:28,924 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 05:19:28,926 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 05:19:28,927 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 05:19:28,928 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 05:19:28,931 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 05:19:28,932 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 05:19:28" (1/1) ... [2020-08-19 05:19:28,936 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e51550b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:19:28, skipping insertion in model container [2020-08-19 05:19:28,936 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 05:19:28" (1/1) ... [2020-08-19 05:19:28,944 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 05:19:28,973 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 05:19:29,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 05:19:29,180 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 05:19:29,220 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 05:19:29,336 INFO L208 MainTranslator]: Completed translation [2020-08-19 05:19:29,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:19:29 WrapperNode [2020-08-19 05:19:29,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 05:19:29,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 05:19:29,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 05:19:29,337 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 05:19:29,348 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:19:29" (1/1) ... [2020-08-19 05:19:29,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:19:29" (1/1) ... [2020-08-19 05:19:29,355 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:19:29" (1/1) ... [2020-08-19 05:19:29,355 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:19:29" (1/1) ... [2020-08-19 05:19:29,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:19:29" (1/1) ... [2020-08-19 05:19:29,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:19:29" (1/1) ... [2020-08-19 05:19:29,370 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:19:29" (1/1) ... [2020-08-19 05:19:29,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 05:19:29,374 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 05:19:29,374 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 05:19:29,375 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 05:19:29,376 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:19:29" (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 [2020-08-19 05:19:29,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 05:19:29,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 05:19:29,447 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-19 05:19:29,447 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 05:19:29,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 05:19:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-19 05:19:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-19 05:19:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-19 05:19:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 05:19:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 05:19:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 05:19:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 05:19:29,846 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 05:19:29,846 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-19 05:19:29,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 05:19:29 BoogieIcfgContainer [2020-08-19 05:19:29,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 05:19:29,855 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 05:19:29,855 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 05:19:29,859 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 05:19:29,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 05:19:28" (1/3) ... [2020-08-19 05:19:29,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ded300c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 05:19:29, skipping insertion in model container [2020-08-19 05:19:29,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:19:29" (2/3) ... [2020-08-19 05:19:29,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ded300c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 05:19:29, skipping insertion in model container [2020-08-19 05:19:29,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 05:19:29" (3/3) ... [2020-08-19 05:19:29,863 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.v+nlh-reducer.c [2020-08-19 05:19:29,876 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 05:19:29,884 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2020-08-19 05:19:29,919 INFO L251 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2020-08-19 05:19:29,953 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 05:19:29,954 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 05:19:29,954 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 05:19:29,954 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 05:19:29,954 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 05:19:29,955 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 05:19:29,955 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 05:19:29,955 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 05:19:29,987 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2020-08-19 05:19:29,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-08-19 05:19:29,993 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:19:29,993 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:19:29,995 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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:19:30,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:19:30,002 INFO L82 PathProgramCache]: Analyzing trace with hash -1093455773, now seen corresponding path program 1 times [2020-08-19 05:19:30,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:19:30,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1111271123] [2020-08-19 05:19:30,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:19:30,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:19:30,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:19:30,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:19:30,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 05:19:30,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1111271123] [2020-08-19 05:19:30,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:19:30,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 05:19:30,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671828375] [2020-08-19 05:19:30,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 05:19:30,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:19:30,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 05:19:30,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-19 05:19:30,414 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 6 states. [2020-08-19 05:19:31,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:19:31,018 INFO L93 Difference]: Finished difference Result 137 states and 180 transitions. [2020-08-19 05:19:31,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-19 05:19:31,020 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-08-19 05:19:31,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:19:31,033 INFO L225 Difference]: With dead ends: 137 [2020-08-19 05:19:31,033 INFO L226 Difference]: Without dead ends: 113 [2020-08-19 05:19:31,037 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-08-19 05:19:31,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-08-19 05:19:31,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 69. [2020-08-19 05:19:31,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-08-19 05:19:31,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 73 transitions. [2020-08-19 05:19:31,089 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 73 transitions. Word has length 12 [2020-08-19 05:19:31,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:19:31,090 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 73 transitions. [2020-08-19 05:19:31,090 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 05:19:31,090 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 73 transitions. [2020-08-19 05:19:31,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-08-19 05:19:31,091 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:19:31,091 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:19:31,092 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 05:19:31,092 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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:19:31,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:19:31,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1096690079, now seen corresponding path program 1 times [2020-08-19 05:19:31,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:19:31,095 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [730658306] [2020-08-19 05:19:31,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:19:31,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:19:31,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:19:31,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:19:31,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 05:19:31,167 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [730658306] [2020-08-19 05:19:31,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:19:31,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-19 05:19:31,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224743669] [2020-08-19 05:19:31,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 05:19:31,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:19:31,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 05:19:31,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-19 05:19:31,171 INFO L87 Difference]: Start difference. First operand 69 states and 73 transitions. Second operand 5 states. [2020-08-19 05:19:31,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:19:31,341 INFO L93 Difference]: Finished difference Result 69 states and 73 transitions. [2020-08-19 05:19:31,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-19 05:19:31,342 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-08-19 05:19:31,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:19:31,343 INFO L225 Difference]: With dead ends: 69 [2020-08-19 05:19:31,344 INFO L226 Difference]: Without dead ends: 67 [2020-08-19 05:19:31,345 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-08-19 05:19:31,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-08-19 05:19:31,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2020-08-19 05:19:31,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-08-19 05:19:31,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 71 transitions. [2020-08-19 05:19:31,356 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 71 transitions. Word has length 12 [2020-08-19 05:19:31,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:19:31,356 INFO L479 AbstractCegarLoop]: Abstraction has 67 states and 71 transitions. [2020-08-19 05:19:31,357 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 05:19:31,357 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 71 transitions. [2020-08-19 05:19:31,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-08-19 05:19:31,357 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:19:31,358 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:19:31,358 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 05:19:31,359 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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:19:31,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:19:31,359 INFO L82 PathProgramCache]: Analyzing trace with hash 362348992, now seen corresponding path program 1 times [2020-08-19 05:19:31,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:19:31,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2088817543] [2020-08-19 05:19:31,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:19:31,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:19:31,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:19:31,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:19:31,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 05:19:31,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2088817543] [2020-08-19 05:19:31,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:19:31,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-19 05:19:31,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458186887] [2020-08-19 05:19:31,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 05:19:31,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:19:31,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 05:19:31,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-19 05:19:31,448 INFO L87 Difference]: Start difference. First operand 67 states and 71 transitions. Second operand 5 states. [2020-08-19 05:19:31,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:19:31,616 INFO L93 Difference]: Finished difference Result 73 states and 77 transitions. [2020-08-19 05:19:31,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 05:19:31,616 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-08-19 05:19:31,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:19:31,618 INFO L225 Difference]: With dead ends: 73 [2020-08-19 05:19:31,618 INFO L226 Difference]: Without dead ends: 71 [2020-08-19 05:19:31,619 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-08-19 05:19:31,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-08-19 05:19:31,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 70. [2020-08-19 05:19:31,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-08-19 05:19:31,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 74 transitions. [2020-08-19 05:19:31,629 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 74 transitions. Word has length 13 [2020-08-19 05:19:31,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:19:31,629 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 74 transitions. [2020-08-19 05:19:31,630 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 05:19:31,630 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 74 transitions. [2020-08-19 05:19:31,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-08-19 05:19:31,631 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:19:31,631 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:19:31,631 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 05:19:31,632 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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:19:31,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:19:31,632 INFO L82 PathProgramCache]: Analyzing trace with hash -2105928756, now seen corresponding path program 1 times [2020-08-19 05:19:31,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:19:31,633 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1675233534] [2020-08-19 05:19:31,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:19:31,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:19:31,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:19:31,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:19:31,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 05:19:31,764 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1675233534] [2020-08-19 05:19:31,769 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:19:31,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 05:19:31,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350272334] [2020-08-19 05:19:31,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 05:19:31,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:19:31,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 05:19:31,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-19 05:19:31,771 INFO L87 Difference]: Start difference. First operand 70 states and 74 transitions. Second operand 6 states. [2020-08-19 05:19:32,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:19:32,001 INFO L93 Difference]: Finished difference Result 71 states and 75 transitions. [2020-08-19 05:19:32,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 05:19:32,001 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-08-19 05:19:32,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:19:32,003 INFO L225 Difference]: With dead ends: 71 [2020-08-19 05:19:32,003 INFO L226 Difference]: Without dead ends: 69 [2020-08-19 05:19:32,004 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-08-19 05:19:32,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-08-19 05:19:32,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 68. [2020-08-19 05:19:32,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-08-19 05:19:32,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 72 transitions. [2020-08-19 05:19:32,027 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 72 transitions. Word has length 15 [2020-08-19 05:19:32,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:19:32,029 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 72 transitions. [2020-08-19 05:19:32,030 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 05:19:32,030 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 72 transitions. [2020-08-19 05:19:32,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-08-19 05:19:32,031 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:19:32,031 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:19:32,032 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 05:19:32,037 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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:19:32,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:19:32,038 INFO L82 PathProgramCache]: Analyzing trace with hash 325126884, now seen corresponding path program 1 times [2020-08-19 05:19:32,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:19:32,038 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [87781269] [2020-08-19 05:19:32,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:19:32,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:19:32,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:19:32,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:19:32,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 05:19:32,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [87781269] [2020-08-19 05:19:32,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:19:32,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 05:19:32,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99352935] [2020-08-19 05:19:32,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 05:19:32,148 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:19:32,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 05:19:32,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-19 05:19:32,149 INFO L87 Difference]: Start difference. First operand 68 states and 72 transitions. Second operand 6 states. [2020-08-19 05:19:32,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:19:32,353 INFO L93 Difference]: Finished difference Result 69 states and 73 transitions. [2020-08-19 05:19:32,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 05:19:32,354 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-08-19 05:19:32,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:19:32,355 INFO L225 Difference]: With dead ends: 69 [2020-08-19 05:19:32,355 INFO L226 Difference]: Without dead ends: 67 [2020-08-19 05:19:32,356 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-08-19 05:19:32,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-08-19 05:19:32,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 66. [2020-08-19 05:19:32,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-08-19 05:19:32,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2020-08-19 05:19:32,363 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 70 transitions. Word has length 15 [2020-08-19 05:19:32,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:19:32,363 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 70 transitions. [2020-08-19 05:19:32,364 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 05:19:32,364 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 70 transitions. [2020-08-19 05:19:32,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-08-19 05:19:32,365 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:19:32,365 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:19:32,365 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 05:19:32,365 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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:19:32,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:19:32,366 INFO L82 PathProgramCache]: Analyzing trace with hash -858848822, now seen corresponding path program 1 times [2020-08-19 05:19:32,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:19:32,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1609674628] [2020-08-19 05:19:32,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:19:32,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:19:32,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:19:32,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:19:32,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 05:19:32,458 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1609674628] [2020-08-19 05:19:32,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:19:32,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 05:19:32,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162012006] [2020-08-19 05:19:32,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 05:19:32,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:19:32,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 05:19:32,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-19 05:19:32,461 INFO L87 Difference]: Start difference. First operand 66 states and 70 transitions. Second operand 6 states. [2020-08-19 05:19:32,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:19:32,706 INFO L93 Difference]: Finished difference Result 112 states and 119 transitions. [2020-08-19 05:19:32,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 05:19:32,706 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-08-19 05:19:32,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:19:32,708 INFO L225 Difference]: With dead ends: 112 [2020-08-19 05:19:32,708 INFO L226 Difference]: Without dead ends: 110 [2020-08-19 05:19:32,709 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-08-19 05:19:32,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-08-19 05:19:32,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 64. [2020-08-19 05:19:32,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-08-19 05:19:32,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2020-08-19 05:19:32,717 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 16 [2020-08-19 05:19:32,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:19:32,717 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2020-08-19 05:19:32,717 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 05:19:32,717 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2020-08-19 05:19:32,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-08-19 05:19:32,718 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:19:32,718 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:19:32,721 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-19 05:19:32,721 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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:19:32,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:19:32,722 INFO L82 PathProgramCache]: Analyzing trace with hash -859278805, now seen corresponding path program 1 times [2020-08-19 05:19:32,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:19:32,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [284635762] [2020-08-19 05:19:32,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:19:32,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:19:32,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:19:32,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:19:32,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 05:19:32,806 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [284635762] [2020-08-19 05:19:32,806 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:19:32,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-19 05:19:32,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106026111] [2020-08-19 05:19:32,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 05:19:32,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:19:32,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 05:19:32,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-19 05:19:32,808 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand 5 states. [2020-08-19 05:19:32,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:19:32,940 INFO L93 Difference]: Finished difference Result 65 states and 69 transitions. [2020-08-19 05:19:32,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-19 05:19:32,941 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-08-19 05:19:32,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:19:32,942 INFO L225 Difference]: With dead ends: 65 [2020-08-19 05:19:32,942 INFO L226 Difference]: Without dead ends: 61 [2020-08-19 05:19:32,943 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-08-19 05:19:32,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-08-19 05:19:32,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2020-08-19 05:19:32,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-08-19 05:19:32,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 64 transitions. [2020-08-19 05:19:32,949 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 64 transitions. Word has length 16 [2020-08-19 05:19:32,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:19:32,949 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 64 transitions. [2020-08-19 05:19:32,949 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 05:19:32,950 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 64 transitions. [2020-08-19 05:19:32,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-08-19 05:19:32,950 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:19:32,951 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:19:32,951 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-19 05:19:32,951 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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:19:32,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:19:32,952 INFO L82 PathProgramCache]: Analyzing trace with hash 1489001901, now seen corresponding path program 1 times [2020-08-19 05:19:32,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:19:32,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1262142703] [2020-08-19 05:19:32,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:19:32,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:19:32,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:19:32,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:19:32,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 05:19:32,996 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1262142703] [2020-08-19 05:19:32,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:19:32,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-19 05:19:32,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888768663] [2020-08-19 05:19:32,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 05:19:32,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:19:32,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 05:19:32,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-19 05:19:32,998 INFO L87 Difference]: Start difference. First operand 60 states and 64 transitions. Second operand 5 states. [2020-08-19 05:19:33,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:19:33,139 INFO L93 Difference]: Finished difference Result 61 states and 65 transitions. [2020-08-19 05:19:33,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-19 05:19:33,140 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-08-19 05:19:33,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:19:33,140 INFO L225 Difference]: With dead ends: 61 [2020-08-19 05:19:33,141 INFO L226 Difference]: Without dead ends: 57 [2020-08-19 05:19:33,141 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-08-19 05:19:33,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-08-19 05:19:33,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 56. [2020-08-19 05:19:33,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-08-19 05:19:33,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2020-08-19 05:19:33,153 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 16 [2020-08-19 05:19:33,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:19:33,153 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2020-08-19 05:19:33,154 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 05:19:33,156 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2020-08-19 05:19:33,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-08-19 05:19:33,157 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:19:33,157 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:19:33,157 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-19 05:19:33,157 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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:19:33,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:19:33,159 INFO L82 PathProgramCache]: Analyzing trace with hash -854506496, now seen corresponding path program 1 times [2020-08-19 05:19:33,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:19:33,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2027249907] [2020-08-19 05:19:33,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:19:33,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:19:33,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:19:33,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:19:33,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 05:19:33,286 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2027249907] [2020-08-19 05:19:33,286 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:19:33,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-19 05:19:33,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003449769] [2020-08-19 05:19:33,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-19 05:19:33,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:19:33,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-19 05:19:33,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-19 05:19:33,289 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand 7 states. [2020-08-19 05:19:33,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:19:33,543 INFO L93 Difference]: Finished difference Result 95 states and 102 transitions. [2020-08-19 05:19:33,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-19 05:19:33,544 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-08-19 05:19:33,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:19:33,545 INFO L225 Difference]: With dead ends: 95 [2020-08-19 05:19:33,545 INFO L226 Difference]: Without dead ends: 93 [2020-08-19 05:19:33,545 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-08-19 05:19:33,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-08-19 05:19:33,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 54. [2020-08-19 05:19:33,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-08-19 05:19:33,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2020-08-19 05:19:33,559 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 17 [2020-08-19 05:19:33,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:19:33,559 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2020-08-19 05:19:33,560 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-19 05:19:33,560 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2020-08-19 05:19:33,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-08-19 05:19:33,560 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:19:33,563 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:19:33,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-19 05:19:33,564 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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:19:33,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:19:33,564 INFO L82 PathProgramCache]: Analyzing trace with hash -1071358986, now seen corresponding path program 1 times [2020-08-19 05:19:33,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:19:33,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1077993511] [2020-08-19 05:19:33,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:19:33,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:19:33,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:19:33,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:19:33,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 05:19:33,642 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1077993511] [2020-08-19 05:19:33,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:19:33,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 05:19:33,642 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897214422] [2020-08-19 05:19:33,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 05:19:33,643 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:19:33,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 05:19:33,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-19 05:19:33,643 INFO L87 Difference]: Start difference. First operand 54 states and 58 transitions. Second operand 6 states. [2020-08-19 05:19:33,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:19:33,817 INFO L93 Difference]: Finished difference Result 72 states and 78 transitions. [2020-08-19 05:19:33,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 05:19:33,818 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-08-19 05:19:33,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:19:33,819 INFO L225 Difference]: With dead ends: 72 [2020-08-19 05:19:33,819 INFO L226 Difference]: Without dead ends: 70 [2020-08-19 05:19:33,820 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-08-19 05:19:33,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-08-19 05:19:33,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 52. [2020-08-19 05:19:33,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-08-19 05:19:33,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2020-08-19 05:19:33,825 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 17 [2020-08-19 05:19:33,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:19:33,825 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2020-08-19 05:19:33,825 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 05:19:33,826 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2020-08-19 05:19:33,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-08-19 05:19:33,826 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:19:33,827 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:19:33,827 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-19 05:19:33,827 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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:19:33,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:19:33,827 INFO L82 PathProgramCache]: Analyzing trace with hash -1069819786, now seen corresponding path program 1 times [2020-08-19 05:19:33,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:19:33,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1804822327] [2020-08-19 05:19:33,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:19:33,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:19:33,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:19:33,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:19:33,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 05:19:33,868 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1804822327] [2020-08-19 05:19:33,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:19:33,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 05:19:33,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793551917] [2020-08-19 05:19:33,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 05:19:33,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:19:33,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 05:19:33,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-19 05:19:33,869 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand 6 states. [2020-08-19 05:19:33,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:19:33,998 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2020-08-19 05:19:33,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 05:19:33,999 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-08-19 05:19:34,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:19:34,000 INFO L225 Difference]: With dead ends: 53 [2020-08-19 05:19:34,001 INFO L226 Difference]: Without dead ends: 51 [2020-08-19 05:19:34,001 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-08-19 05:19:34,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-08-19 05:19:34,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2020-08-19 05:19:34,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-08-19 05:19:34,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2020-08-19 05:19:34,006 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 17 [2020-08-19 05:19:34,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:19:34,007 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2020-08-19 05:19:34,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 05:19:34,007 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2020-08-19 05:19:34,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-08-19 05:19:34,008 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:19:34,008 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:19:34,008 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-19 05:19:34,008 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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:19:34,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:19:34,009 INFO L82 PathProgramCache]: Analyzing trace with hash -726143538, now seen corresponding path program 1 times [2020-08-19 05:19:34,009 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:19:34,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [541958837] [2020-08-19 05:19:34,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:19:34,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:19:34,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:19:34,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:19:34,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 05:19:34,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [541958837] [2020-08-19 05:19:34,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:19:34,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-19 05:19:34,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759704050] [2020-08-19 05:19:34,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-19 05:19:34,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:19:34,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-19 05:19:34,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-19 05:19:34,105 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand 7 states. [2020-08-19 05:19:34,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:19:34,248 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2020-08-19 05:19:34,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-19 05:19:34,248 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-08-19 05:19:34,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:19:34,249 INFO L225 Difference]: With dead ends: 50 [2020-08-19 05:19:34,249 INFO L226 Difference]: Without dead ends: 48 [2020-08-19 05:19:34,250 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-08-19 05:19:34,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-08-19 05:19:34,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 45. [2020-08-19 05:19:34,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-08-19 05:19:34,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2020-08-19 05:19:34,254 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 18 [2020-08-19 05:19:34,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:19:34,254 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2020-08-19 05:19:34,254 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-19 05:19:34,254 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2020-08-19 05:19:34,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-08-19 05:19:34,255 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:19:34,255 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:19:34,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-19 05:19:34,256 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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:19:34,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:19:34,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1148978332, now seen corresponding path program 1 times [2020-08-19 05:19:34,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:19:34,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1472127959] [2020-08-19 05:19:34,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:19:34,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:19:34,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:19:34,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:19:34,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 05:19:34,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1472127959] [2020-08-19 05:19:34,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:19:34,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 05:19:34,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924048807] [2020-08-19 05:19:34,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 05:19:34,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:19:34,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 05:19:34,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-19 05:19:34,306 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand 6 states. [2020-08-19 05:19:34,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:19:34,458 INFO L93 Difference]: Finished difference Result 69 states and 75 transitions. [2020-08-19 05:19:34,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 05:19:34,459 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-08-19 05:19:34,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:19:34,459 INFO L225 Difference]: With dead ends: 69 [2020-08-19 05:19:34,460 INFO L226 Difference]: Without dead ends: 67 [2020-08-19 05:19:34,460 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-08-19 05:19:34,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-08-19 05:19:34,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 43. [2020-08-19 05:19:34,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-08-19 05:19:34,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2020-08-19 05:19:34,464 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 18 [2020-08-19 05:19:34,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:19:34,465 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2020-08-19 05:19:34,465 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 05:19:34,465 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2020-08-19 05:19:34,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-08-19 05:19:34,465 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:19:34,466 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:19:34,466 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-19 05:19:34,466 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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:19:34,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:19:34,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1147612912, now seen corresponding path program 1 times [2020-08-19 05:19:34,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:19:34,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1245371974] [2020-08-19 05:19:34,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:19:34,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:19:34,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:19:34,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:19:34,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 05:19:34,572 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1245371974] [2020-08-19 05:19:34,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:19:34,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 05:19:34,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615667038] [2020-08-19 05:19:34,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 05:19:34,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:19:34,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 05:19:34,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-19 05:19:34,575 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand 6 states. [2020-08-19 05:19:34,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:19:34,737 INFO L93 Difference]: Finished difference Result 57 states and 63 transitions. [2020-08-19 05:19:34,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-19 05:19:34,737 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-08-19 05:19:34,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:19:34,738 INFO L225 Difference]: With dead ends: 57 [2020-08-19 05:19:34,738 INFO L226 Difference]: Without dead ends: 55 [2020-08-19 05:19:34,739 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-08-19 05:19:34,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-08-19 05:19:34,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 41. [2020-08-19 05:19:34,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-08-19 05:19:34,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2020-08-19 05:19:34,743 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 18 [2020-08-19 05:19:34,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:19:34,744 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2020-08-19 05:19:34,744 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 05:19:34,744 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2020-08-19 05:19:34,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-08-19 05:19:34,744 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:19:34,745 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:19:34,745 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-08-19 05:19:34,745 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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:19:34,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:19:34,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1195328162, now seen corresponding path program 1 times [2020-08-19 05:19:34,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:19:34,746 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1272397476] [2020-08-19 05:19:34,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:19:34,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:19:34,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:19:34,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:19:34,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 05:19:34,802 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1272397476] [2020-08-19 05:19:34,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:19:34,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 05:19:34,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145397830] [2020-08-19 05:19:34,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 05:19:34,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:19:34,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 05:19:34,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-19 05:19:34,804 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand 6 states. [2020-08-19 05:19:34,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:19:34,917 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2020-08-19 05:19:34,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-19 05:19:34,918 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-08-19 05:19:34,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:19:34,919 INFO L225 Difference]: With dead ends: 41 [2020-08-19 05:19:34,919 INFO L226 Difference]: Without dead ends: 37 [2020-08-19 05:19:34,919 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-08-19 05:19:34,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-08-19 05:19:34,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-08-19 05:19:34,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-08-19 05:19:34,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2020-08-19 05:19:34,923 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 18 [2020-08-19 05:19:34,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:19:34,923 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2020-08-19 05:19:34,923 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 05:19:34,923 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2020-08-19 05:19:34,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-08-19 05:19:34,924 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:19:34,924 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:19:34,924 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-08-19 05:19:34,925 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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:19:34,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:19:34,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1258593065, now seen corresponding path program 1 times [2020-08-19 05:19:34,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:19:34,925 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2031157990] [2020-08-19 05:19:34,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:19:34,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:19:34,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:19:34,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:19:34,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 05:19:34,997 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2031157990] [2020-08-19 05:19:34,998 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:19:34,998 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 05:19:34,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245489983] [2020-08-19 05:19:34,998 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 05:19:34,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:19:34,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 05:19:34,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-19 05:19:34,999 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 6 states. [2020-08-19 05:19:35,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:19:35,172 INFO L93 Difference]: Finished difference Result 52 states and 58 transitions. [2020-08-19 05:19:35,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-19 05:19:35,173 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-08-19 05:19:35,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:19:35,173 INFO L225 Difference]: With dead ends: 52 [2020-08-19 05:19:35,173 INFO L226 Difference]: Without dead ends: 50 [2020-08-19 05:19:35,174 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-08-19 05:19:35,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-08-19 05:19:35,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 35. [2020-08-19 05:19:35,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-08-19 05:19:35,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2020-08-19 05:19:35,178 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 19 [2020-08-19 05:19:35,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:19:35,178 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2020-08-19 05:19:35,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 05:19:35,178 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2020-08-19 05:19:35,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-08-19 05:19:35,179 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:19:35,179 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] [2020-08-19 05:19:35,179 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-08-19 05:19:35,179 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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:19:35,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:19:35,180 INFO L82 PathProgramCache]: Analyzing trace with hash -950489901, now seen corresponding path program 1 times [2020-08-19 05:19:35,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:19:35,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [114015139] [2020-08-19 05:19:35,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:19:35,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:19:35,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:19:35,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:19:35,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 05:19:35,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [114015139] [2020-08-19 05:19:35,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:19:35,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-19 05:19:35,211 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92865855] [2020-08-19 05:19:35,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 05:19:35,211 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:19:35,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 05:19:35,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-19 05:19:35,212 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 5 states. [2020-08-19 05:19:35,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:19:35,277 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2020-08-19 05:19:35,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-19 05:19:35,278 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-08-19 05:19:35,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:19:35,278 INFO L225 Difference]: With dead ends: 35 [2020-08-19 05:19:35,278 INFO L226 Difference]: Without dead ends: 33 [2020-08-19 05:19:35,279 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-08-19 05:19:35,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-08-19 05:19:35,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-08-19 05:19:35,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-08-19 05:19:35,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2020-08-19 05:19:35,283 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 20 [2020-08-19 05:19:35,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:19:35,283 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2020-08-19 05:19:35,283 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 05:19:35,283 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2020-08-19 05:19:35,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-08-19 05:19:35,284 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:19:35,284 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] [2020-08-19 05:19:35,284 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-08-19 05:19:35,284 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, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:19:35,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:19:35,285 INFO L82 PathProgramCache]: Analyzing trace with hash 599587266, now seen corresponding path program 1 times [2020-08-19 05:19:35,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:19:35,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1866750359] [2020-08-19 05:19:35,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:19:35,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:19:35,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:19:35,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:19:35,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 05:19:35,318 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1866750359] [2020-08-19 05:19:35,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:19:35,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-19 05:19:35,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496405889] [2020-08-19 05:19:35,319 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 05:19:35,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:19:35,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 05:19:35,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-19 05:19:35,320 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 5 states. [2020-08-19 05:19:35,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:19:35,414 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2020-08-19 05:19:35,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-19 05:19:35,414 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-08-19 05:19:35,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:19:35,415 INFO L225 Difference]: With dead ends: 37 [2020-08-19 05:19:35,415 INFO L226 Difference]: Without dead ends: 0 [2020-08-19 05:19:35,415 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-08-19 05:19:35,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-19 05:19:35,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-19 05:19:35,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-19 05:19:35,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-19 05:19:35,416 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-08-19 05:19:35,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:19:35,417 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-19 05:19:35,417 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 05:19:35,417 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-19 05:19:35,417 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-19 05:19:35,417 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-08-19 05:19:35,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-19 05:19:35,693 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-19 05:19:35,693 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__tmp_383_0~0 |old(~__tmp_383_0~0)|) (= ~__tmp_247_0~0 |old(~__tmp_247_0~0)|) (= ~__return_main~0 |old(~__return_main~0)|) (= ~__return_305~0 |old(~__return_305~0)|)) [2020-08-19 05:19:35,693 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-19 05:19:35,694 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-19 05:19:35,694 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-19 05:19:35,694 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-19 05:19:35,694 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-19 05:19:35,694 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-08-19 05:19:35,694 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-08-19 05:19:35,694 INFO L268 CegarLoopResult]: For program point L5-2(lines 4 6) no Hoare annotation was computed. [2020-08-19 05:19:35,694 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-08-19 05:19:35,695 INFO L268 CegarLoopResult]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 83) no Hoare annotation was computed. [2020-08-19 05:19:35,695 INFO L268 CegarLoopResult]: For program point L349(line 349) no Hoare annotation was computed. [2020-08-19 05:19:35,695 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 373) no Hoare annotation was computed. [2020-08-19 05:19:35,695 INFO L268 CegarLoopResult]: For program point L151(lines 151 159) no Hoare annotation was computed. [2020-08-19 05:19:35,695 INFO L268 CegarLoopResult]: For program point L52(lines 52 252) no Hoare annotation was computed. [2020-08-19 05:19:35,695 INFO L268 CegarLoopResult]: For program point L308(line 308) no Hoare annotation was computed. [2020-08-19 05:19:35,695 INFO L268 CegarLoopResult]: For program point L275(lines 275 362) no Hoare annotation was computed. [2020-08-19 05:19:35,695 INFO L268 CegarLoopResult]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 235) no Hoare annotation was computed. [2020-08-19 05:19:35,696 INFO L268 CegarLoopResult]: For program point L69(lines 69 93) no Hoare annotation was computed. [2020-08-19 05:19:35,696 INFO L268 CegarLoopResult]: For program point L185(lines 185 195) no Hoare annotation was computed. [2020-08-19 05:19:35,696 INFO L268 CegarLoopResult]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 141) no Hoare annotation was computed. [2020-08-19 05:19:35,696 INFO L268 CegarLoopResult]: For program point L111(lines 111 202) no Hoare annotation was computed. [2020-08-19 05:19:35,696 INFO L268 CegarLoopResult]: For program point mainErr14ASSERT_VIOLATIONERROR_FUNCTION(line 308) no Hoare annotation was computed. [2020-08-19 05:19:35,696 INFO L268 CegarLoopResult]: For program point L235(line 235) no Hoare annotation was computed. [2020-08-19 05:19:35,696 INFO L264 CegarLoopResult]: At program point L326(lines 30 366) the Hoare annotation is: (and (< main_~main__t~0 main_~main__tagbuf_len~0) (<= 0 main_~main__t~0)) [2020-08-19 05:19:35,697 INFO L264 CegarLoopResult]: At program point L194(lines 58 252) the Hoare annotation is: (and (not (= main_~__VERIFIER_assert__cond~0 0)) (<= 1 main_~main__t~0) (< main_~main__t~0 (+ main_~main__tagbuf_len~0 1)) (not (= main_~__VERIFIER_assert__cond~1 0))) [2020-08-19 05:19:35,697 INFO L268 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-08-19 05:19:35,697 INFO L268 CegarLoopResult]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 125) no Hoare annotation was computed. [2020-08-19 05:19:35,697 INFO L268 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-08-19 05:19:35,697 INFO L268 CegarLoopResult]: For program point L277(line 277) no Hoare annotation was computed. [2020-08-19 05:19:35,697 INFO L268 CegarLoopResult]: For program point L335(lines 335 358) no Hoare annotation was computed. [2020-08-19 05:19:35,698 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 373) no Hoare annotation was computed. [2020-08-19 05:19:35,698 INFO L268 CegarLoopResult]: For program point mainErr13ASSERT_VIOLATIONERROR_FUNCTION(line 296) no Hoare annotation was computed. [2020-08-19 05:19:35,698 INFO L268 CegarLoopResult]: For program point L104(lines 104 208) no Hoare annotation was computed. [2020-08-19 05:19:35,698 INFO L268 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-08-19 05:19:35,698 INFO L268 CegarLoopResult]: For program point L294(lines 294 316) no Hoare annotation was computed. [2020-08-19 05:19:35,698 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 42) no Hoare annotation was computed. [2020-08-19 05:19:35,698 INFO L268 CegarLoopResult]: For program point L30(lines 30 366) no Hoare annotation was computed. [2020-08-19 05:19:35,699 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 13 373) the Hoare annotation is: (and (= |old(~__tmp_247_0~0)| ~__tmp_247_0~0) (= |old(~__return_305~0)| ~__return_305~0) (= |old(~__tmp_383_0~0)| ~__tmp_383_0~0)) [2020-08-19 05:19:35,699 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-08-19 05:19:35,699 INFO L268 CegarLoopResult]: For program point L22(lines 22 367) no Hoare annotation was computed. [2020-08-19 05:19:35,699 INFO L268 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-08-19 05:19:35,699 INFO L268 CegarLoopResult]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 175) no Hoare annotation was computed. [2020-08-19 05:19:35,699 INFO L268 CegarLoopResult]: For program point mainErr16ASSERT_VIOLATIONERROR_FUNCTION(line 349) no Hoare annotation was computed. [2020-08-19 05:19:35,699 INFO L268 CegarLoopResult]: For program point L287(lines 287 361) no Hoare annotation was computed. [2020-08-19 05:19:35,700 INFO L268 CegarLoopResult]: For program point L221(lines 221 243) no Hoare annotation was computed. [2020-08-19 05:19:35,700 INFO L268 CegarLoopResult]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 153) no Hoare annotation was computed. [2020-08-19 05:19:35,700 INFO L268 CegarLoopResult]: For program point L81(lines 81 91) no Hoare annotation was computed. [2020-08-19 05:19:35,700 INFO L268 CegarLoopResult]: For program point L337(line 337) no Hoare annotation was computed. [2020-08-19 05:19:35,700 INFO L268 CegarLoopResult]: For program point mainErr15ASSERT_VIOLATIONERROR_FUNCTION(line 337) no Hoare annotation was computed. [2020-08-19 05:19:35,700 INFO L268 CegarLoopResult]: For program point L139(lines 139 161) no Hoare annotation was computed. [2020-08-19 05:19:35,700 INFO L268 CegarLoopResult]: For program point L40(lines 40 254) no Hoare annotation was computed. [2020-08-19 05:19:35,700 INFO L268 CegarLoopResult]: For program point L296(line 296) no Hoare annotation was computed. [2020-08-19 05:19:35,700 INFO L268 CegarLoopResult]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 71) no Hoare annotation was computed. [2020-08-19 05:19:35,700 INFO L268 CegarLoopResult]: For program point L123(lines 123 200) no Hoare annotation was computed. [2020-08-19 05:19:35,701 INFO L271 CegarLoopResult]: At program point L313(lines 30 366) the Hoare annotation is: true [2020-08-19 05:19:35,701 INFO L268 CegarLoopResult]: For program point L214(lines 214 249) no Hoare annotation was computed. [2020-08-19 05:19:35,701 INFO L268 CegarLoopResult]: For program point L173(lines 173 197) no Hoare annotation was computed. [2020-08-19 05:19:35,701 INFO L268 CegarLoopResult]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2020-08-19 05:19:35,701 INFO L268 CegarLoopResult]: For program point L264(lines 264 364) no Hoare annotation was computed. [2020-08-19 05:19:35,701 INFO L268 CegarLoopResult]: For program point L132(lines 132 199) no Hoare annotation was computed. [2020-08-19 05:19:35,701 INFO L264 CegarLoopResult]: At program point L355(lines 281 362) the Hoare annotation is: (and (< main_~main__t~0 main_~main__tagbuf_len~0) (not (= main_~__VERIFIER_assert__cond~13 0)) (<= 0 main_~main__t~0)) [2020-08-19 05:19:35,702 INFO L268 CegarLoopResult]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2020-08-19 05:19:35,702 INFO L268 CegarLoopResult]: For program point L223(line 223) no Hoare annotation was computed. [2020-08-19 05:19:35,702 INFO L268 CegarLoopResult]: For program point L347(lines 347 356) no Hoare annotation was computed. [2020-08-19 05:19:35,702 INFO L264 CegarLoopResult]: At program point L248(lines 100 250) the Hoare annotation is: (and (< main_~main__t~0 main_~main__tagbuf_len~0) (not (= main_~__VERIFIER_assert__cond~0 0)) (<= 1 main_~main__t~0) (not (= main_~__VERIFIER_assert__cond~1 0))) [2020-08-19 05:19:35,702 INFO L268 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-08-19 05:19:35,702 INFO L268 CegarLoopResult]: For program point L306(lines 306 314) no Hoare annotation was computed. [2020-08-19 05:19:35,702 INFO L268 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-08-19 05:19:35,702 INFO L268 CegarLoopResult]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 187) no Hoare annotation was computed. [2020-08-19 05:19:35,703 INFO L268 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-08-19 05:19:35,703 INFO L268 CegarLoopResult]: For program point L100(lines 100 250) no Hoare annotation was computed. [2020-08-19 05:19:35,703 INFO L268 CegarLoopResult]: For program point L323(lines 323 360) no Hoare annotation was computed. [2020-08-19 05:19:35,703 INFO L268 CegarLoopResult]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 113) no Hoare annotation was computed. [2020-08-19 05:19:35,703 INFO L268 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-08-19 05:19:35,703 INFO L268 CegarLoopResult]: For program point L18(lines 18 372) no Hoare annotation was computed. [2020-08-19 05:19:35,703 INFO L268 CegarLoopResult]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 277) no Hoare annotation was computed. [2020-08-19 05:19:35,703 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-08-19 05:19:35,704 INFO L268 CegarLoopResult]: For program point L233(lines 233 241) no Hoare annotation was computed. [2020-08-19 05:19:35,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.08 05:19:35 BoogieIcfgContainer [2020-08-19 05:19:35,725 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-19 05:19:35,728 INFO L168 Benchmark]: Toolchain (without parser) took 6801.58 ms. Allocated memory was 149.4 MB in the beginning and 269.5 MB in the end (delta: 120.1 MB). Free memory was 105.2 MB in the beginning and 122.0 MB in the end (delta: -16.8 MB). Peak memory consumption was 103.3 MB. Max. memory is 7.1 GB. [2020-08-19 05:19:35,729 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 149.4 MB. Free memory was 124.0 MB in the beginning and 123.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-19 05:19:35,729 INFO L168 Benchmark]: CACSL2BoogieTranslator took 409.50 ms. Allocated memory was 149.4 MB in the beginning and 205.5 MB in the end (delta: 56.1 MB). Free memory was 105.0 MB in the beginning and 183.8 MB in the end (delta: -78.8 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2020-08-19 05:19:35,730 INFO L168 Benchmark]: Boogie Preprocessor took 36.75 ms. Allocated memory is still 205.5 MB. Free memory was 183.8 MB in the beginning and 181.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-08-19 05:19:35,731 INFO L168 Benchmark]: RCFGBuilder took 478.95 ms. Allocated memory is still 205.5 MB. Free memory was 181.9 MB in the beginning and 156.9 MB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. [2020-08-19 05:19:35,731 INFO L168 Benchmark]: TraceAbstraction took 5870.65 ms. Allocated memory was 205.5 MB in the beginning and 269.5 MB in the end (delta: 64.0 MB). Free memory was 156.2 MB in the beginning and 122.0 MB in the end (delta: 34.2 MB). Peak memory consumption was 98.2 MB. Max. memory is 7.1 GB. [2020-08-19 05:19:35,734 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 149.4 MB. Free memory was 124.0 MB in the beginning and 123.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 409.50 ms. Allocated memory was 149.4 MB in the beginning and 205.5 MB in the end (delta: 56.1 MB). Free memory was 105.0 MB in the beginning and 183.8 MB in the end (delta: -78.8 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 36.75 ms. Allocated memory is still 205.5 MB. Free memory was 183.8 MB in the beginning and 181.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 478.95 ms. Allocated memory is still 205.5 MB. Free memory was 181.9 MB in the beginning and 156.9 MB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5870.65 ms. Allocated memory was 205.5 MB in the beginning and 269.5 MB in the end (delta: 64.0 MB). Free memory was 156.2 MB in the beginning and 122.0 MB in the end (delta: 34.2 MB). Peak memory consumption was 98.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 42]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 337]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 349]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 153]: 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: 296]: 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: 223]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 308]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 277]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 113]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 235]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 71]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 141]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 125]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 83]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 54]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 17 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: main__t < main__tagbuf_len && 0 <= main__t - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: ((!(__VERIFIER_assert__cond == 0) && 1 <= main__t) && main__t < main__tagbuf_len + 1) && !(__VERIFIER_assert__cond == 0) - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: ((main__t < main__tagbuf_len && !(__VERIFIER_assert__cond == 0)) && 1 <= main__t) && !(__VERIFIER_assert__cond == 0) - InvariantResult [Line: 281]: Loop Invariant Derived loop invariant: (main__t < main__tagbuf_len && !(__VERIFIER_assert__cond == 0)) && 0 <= main__t - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 80 locations, 17 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.4s, OverallIterations: 18, TraceHistogramMax: 1, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 802 SDtfs, 1459 SDslu, 821 SDs, 0 SdLazy, 2124 SolverSat, 146 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 182 GetRequests, 60 SyntacticMatches, 8 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred 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: 0.1s AutomataMinimizationTime, 18 MinimizatonAttempts, 209 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 14 NumberOfFragments, 76 HoareAnnotationTreeSize, 9 FomulaSimplifications, 50568 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 1351 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 298 NumberOfCodeBlocks, 298 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 280 ConstructedInterpolants, 0 QuantifiedInterpolants, 13380 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...