/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-get-tag.i.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 14:14:59,878 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 14:14:59,881 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 14:14:59,926 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-08-21 14:14:59,952 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 14:14:59,955 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 14:14:59,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 14:14:59,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 14:14:59,961 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 14:14:59,963 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 14:14:59,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 14:14:59,973 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 14:14:59,974 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 14:14:59,976 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 14:14:59,978 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 14:14:59,978 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 14:14:59,982 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-21 14:14:59,993 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 14:14:59,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 14:14:59,995 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 14:14:59,996 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-21 14:15:00,040 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 14:15:00,040 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 14:15:00,042 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 14:15:00,043 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 14:15:00,043 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 14:15:00,043 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 14:15:00,044 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 14:15:00,044 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 14:15:00,044 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 14:15:00,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 14:15:00,045 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 14:15:00,046 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 14:15:00,046 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 14:15:00,046 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 14:15:00,047 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 14:15:00,047 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 14:15:00,047 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 14:15:00,047 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 14:15:00,048 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 14:15:00,048 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 14:15:00,048 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 14:15:00,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 14:15:00,048 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 14:15:00,049 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 14:15:00,049 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 14:15:00,049 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 14:15:00,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 14:15:00,049 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 14:15:00,050 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 14:15:00,050 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 -> log-additional-information=true; [2020-08-21 14:15:00,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 14:15:00,370 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 14:15:00,374 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 14:15:00,375 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 14:15:00,376 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 14:15:00,377 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-get-tag.i.v+lhb-reducer.c [2020-08-21 14:15:00,444 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/79be71129/fe53f44c4ebf480ea447e3c74b616c62/FLAGf1ba09ea6 [2020-08-21 14:15:00,832 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 14:15:00,833 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.v+lhb-reducer.c [2020-08-21 14:15:00,841 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/79be71129/fe53f44c4ebf480ea447e3c74b616c62/FLAGf1ba09ea6 [2020-08-21 14:15:01,208 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/79be71129/fe53f44c4ebf480ea447e3c74b616c62 [2020-08-21 14:15:01,219 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 14:15:01,221 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 14:15:01,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 14:15:01,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 14:15:01,229 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 14:15:01,230 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 02:15:01" (1/1) ... [2020-08-21 14:15:01,233 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71e0f281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:15:01, skipping insertion in model container [2020-08-21 14:15:01,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 02:15:01" (1/1) ... [2020-08-21 14:15:01,243 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 14:15:01,287 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 14:15:01,629 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 14:15:01,638 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 14:15:01,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 14:15:01,870 INFO L208 MainTranslator]: Completed translation [2020-08-21 14:15:01,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:15:01 WrapperNode [2020-08-21 14:15:01,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 14:15:01,872 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 14:15:01,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 14:15:01,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 14:15:01,887 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:15:01" (1/1) ... [2020-08-21 14:15:01,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:15:01" (1/1) ... [2020-08-21 14:15:01,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:15:01" (1/1) ... [2020-08-21 14:15:01,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:15:01" (1/1) ... [2020-08-21 14:15:01,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:15:01" (1/1) ... [2020-08-21 14:15:01,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:15:01" (1/1) ... [2020-08-21 14:15:01,915 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:15:01" (1/1) ... [2020-08-21 14:15:01,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 14:15:01,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 14:15:01,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 14:15:01,919 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 14:15:01,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:15:01" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 14:15:01,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 14:15:01,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 14:15:01,991 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-21 14:15:01,991 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 14:15:01,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 14:15:01,991 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-21 14:15:01,991 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-21 14:15:01,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-21 14:15:01,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 14:15:01,992 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 14:15:01,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 14:15:01,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 14:15:02,451 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 14:15:02,451 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-21 14:15:02,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 02:15:02 BoogieIcfgContainer [2020-08-21 14:15:02,457 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 14:15:02,458 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 14:15:02,458 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 14:15:02,462 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 14:15:02,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 02:15:01" (1/3) ... [2020-08-21 14:15:02,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@485d21cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 02:15:02, skipping insertion in model container [2020-08-21 14:15:02,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:15:01" (2/3) ... [2020-08-21 14:15:02,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@485d21cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 02:15:02, skipping insertion in model container [2020-08-21 14:15:02,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 02:15:02" (3/3) ... [2020-08-21 14:15:02,466 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.v+lhb-reducer.c [2020-08-21 14:15:02,477 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 14:15:02,484 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2020-08-21 14:15:02,497 INFO L251 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2020-08-21 14:15:02,522 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 14:15:02,522 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 14:15:02,523 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 14:15:02,523 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 14:15:02,523 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 14:15:02,523 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 14:15:02,523 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 14:15:02,523 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 14:15:02,546 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2020-08-21 14:15:02,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-08-21 14:15:02,552 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:15:02,553 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 14:15:02,553 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:15:02,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:15:02,558 INFO L82 PathProgramCache]: Analyzing trace with hash -452302183, now seen corresponding path program 1 times [2020-08-21 14:15:02,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:15:02,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [282522455] [2020-08-21 14:15:02,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:15:02,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:15:02,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:15:02,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:15:02,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 14:15:02,815 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [282522455] [2020-08-21 14:15:02,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 14:15:02,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 14:15:02,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745153353] [2020-08-21 14:15:02,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 14:15:02,825 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:15:02,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 14:15:02,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-21 14:15:02,841 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 5 states. [2020-08-21 14:15:03,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:15:03,234 INFO L93 Difference]: Finished difference Result 135 states and 178 transitions. [2020-08-21 14:15:03,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 14:15:03,237 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-08-21 14:15:03,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:15:03,248 INFO L225 Difference]: With dead ends: 135 [2020-08-21 14:15:03,249 INFO L226 Difference]: Without dead ends: 111 [2020-08-21 14:15:03,253 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-08-21 14:15:03,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-08-21 14:15:03,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 73. [2020-08-21 14:15:03,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-08-21 14:15:03,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 77 transitions. [2020-08-21 14:15:03,305 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 77 transitions. Word has length 12 [2020-08-21 14:15:03,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:15:03,305 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 77 transitions. [2020-08-21 14:15:03,306 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 14:15:03,306 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 77 transitions. [2020-08-21 14:15:03,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-08-21 14:15:03,307 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:15:03,307 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 14:15:03,307 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 14:15:03,308 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:15:03,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:15:03,309 INFO L82 PathProgramCache]: Analyzing trace with hash -449131431, now seen corresponding path program 1 times [2020-08-21 14:15:03,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:15:03,309 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2080328484] [2020-08-21 14:15:03,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:15:03,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:15:03,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:15:03,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:15:03,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 14:15:03,435 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2080328484] [2020-08-21 14:15:03,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 14:15:03,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 14:15:03,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288784776] [2020-08-21 14:15:03,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 14:15:03,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:15:03,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 14:15:03,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-21 14:15:03,438 INFO L87 Difference]: Start difference. First operand 73 states and 77 transitions. Second operand 5 states. [2020-08-21 14:15:03,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:15:03,702 INFO L93 Difference]: Finished difference Result 111 states and 117 transitions. [2020-08-21 14:15:03,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 14:15:03,703 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-08-21 14:15:03,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:15:03,705 INFO L225 Difference]: With dead ends: 111 [2020-08-21 14:15:03,705 INFO L226 Difference]: Without dead ends: 109 [2020-08-21 14:15:03,706 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-08-21 14:15:03,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-08-21 14:15:03,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 71. [2020-08-21 14:15:03,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-08-21 14:15:03,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions. [2020-08-21 14:15:03,718 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 12 [2020-08-21 14:15:03,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:15:03,718 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions. [2020-08-21 14:15:03,719 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 14:15:03,719 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions. [2020-08-21 14:15:03,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-08-21 14:15:03,720 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:15:03,720 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 14:15:03,720 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 14:15:03,721 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:15:03,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:15:03,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1218997650, now seen corresponding path program 1 times [2020-08-21 14:15:03,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:15:03,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [283922264] [2020-08-21 14:15:03,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:15:03,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:15:03,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:15:03,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:15:03,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 14:15:03,798 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [283922264] [2020-08-21 14:15:03,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 14:15:03,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 14:15:03,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781047437] [2020-08-21 14:15:03,799 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 14:15:03,799 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:15:03,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 14:15:03,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 14:15:03,800 INFO L87 Difference]: Start difference. First operand 71 states and 75 transitions. Second operand 6 states. [2020-08-21 14:15:03,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:15:03,984 INFO L93 Difference]: Finished difference Result 73 states and 77 transitions. [2020-08-21 14:15:03,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 14:15:03,985 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-08-21 14:15:03,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:15:03,986 INFO L225 Difference]: With dead ends: 73 [2020-08-21 14:15:03,987 INFO L226 Difference]: Without dead ends: 71 [2020-08-21 14:15:03,987 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 [2020-08-21 14:15:03,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-08-21 14:15:03,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 69. [2020-08-21 14:15:03,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-08-21 14:15:03,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 73 transitions. [2020-08-21 14:15:03,996 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 73 transitions. Word has length 15 [2020-08-21 14:15:03,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:15:03,996 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 73 transitions. [2020-08-21 14:15:03,997 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 14:15:03,997 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 73 transitions. [2020-08-21 14:15:03,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-08-21 14:15:03,998 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:15:03,998 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 14:15:03,998 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 14:15:03,998 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:15:03,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:15:03,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1248304044, now seen corresponding path program 1 times [2020-08-21 14:15:03,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:15:04,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1028705305] [2020-08-21 14:15:04,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:15:04,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:15:04,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:15:04,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:15:04,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 14:15:04,128 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1028705305] [2020-08-21 14:15:04,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 14:15:04,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 14:15:04,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658268289] [2020-08-21 14:15:04,129 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 14:15:04,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:15:04,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 14:15:04,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 14:15:04,130 INFO L87 Difference]: Start difference. First operand 69 states and 73 transitions. Second operand 6 states. [2020-08-21 14:15:04,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:15:04,335 INFO L93 Difference]: Finished difference Result 71 states and 75 transitions. [2020-08-21 14:15:04,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 14:15:04,336 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-08-21 14:15:04,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:15:04,337 INFO L225 Difference]: With dead ends: 71 [2020-08-21 14:15:04,337 INFO L226 Difference]: Without dead ends: 69 [2020-08-21 14:15:04,338 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 [2020-08-21 14:15:04,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-08-21 14:15:04,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2020-08-21 14:15:04,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-08-21 14:15:04,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 71 transitions. [2020-08-21 14:15:04,357 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 71 transitions. Word has length 15 [2020-08-21 14:15:04,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:15:04,358 INFO L479 AbstractCegarLoop]: Abstraction has 67 states and 71 transitions. [2020-08-21 14:15:04,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 14:15:04,358 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 71 transitions. [2020-08-21 14:15:04,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-08-21 14:15:04,359 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:15:04,359 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 14:15:04,360 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 14:15:04,360 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:15:04,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:15:04,361 INFO L82 PathProgramCache]: Analyzing trace with hash 865781601, now seen corresponding path program 1 times [2020-08-21 14:15:04,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:15:04,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1524614500] [2020-08-21 14:15:04,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:15:04,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:15:04,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:15:04,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:15:04,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 14:15:04,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1524614500] [2020-08-21 14:15:04,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 14:15:04,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 14:15:04,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453034163] [2020-08-21 14:15:04,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 14:15:04,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:15:04,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 14:15:04,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-21 14:15:04,466 INFO L87 Difference]: Start difference. First operand 67 states and 71 transitions. Second operand 5 states. [2020-08-21 14:15:04,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:15:04,669 INFO L93 Difference]: Finished difference Result 69 states and 73 transitions. [2020-08-21 14:15:04,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 14:15:04,670 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-08-21 14:15:04,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:15:04,671 INFO L225 Difference]: With dead ends: 69 [2020-08-21 14:15:04,671 INFO L226 Difference]: Without dead ends: 65 [2020-08-21 14:15:04,672 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 [2020-08-21 14:15:04,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-08-21 14:15:04,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 63. [2020-08-21 14:15:04,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-08-21 14:15:04,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 67 transitions. [2020-08-21 14:15:04,678 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 67 transitions. Word has length 16 [2020-08-21 14:15:04,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:15:04,678 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 67 transitions. [2020-08-21 14:15:04,678 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 14:15:04,679 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 67 transitions. [2020-08-21 14:15:04,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-08-21 14:15:04,679 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:15:04,680 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 14:15:04,680 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 14:15:04,680 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:15:04,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:15:04,681 INFO L82 PathProgramCache]: Analyzing trace with hash -42274612, now seen corresponding path program 1 times [2020-08-21 14:15:04,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:15:04,681 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1142375112] [2020-08-21 14:15:04,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:15:04,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:15:04,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:15:04,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:15:04,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 14:15:04,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1142375112] [2020-08-21 14:15:04,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 14:15:04,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 14:15:04,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832964383] [2020-08-21 14:15:04,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 14:15:04,742 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:15:04,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 14:15:04,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 14:15:04,743 INFO L87 Difference]: Start difference. First operand 63 states and 67 transitions. Second operand 6 states. [2020-08-21 14:15:04,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:15:04,983 INFO L93 Difference]: Finished difference Result 108 states and 115 transitions. [2020-08-21 14:15:04,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 14:15:04,986 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-08-21 14:15:04,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:15:04,987 INFO L225 Difference]: With dead ends: 108 [2020-08-21 14:15:04,988 INFO L226 Difference]: Without dead ends: 106 [2020-08-21 14:15:04,988 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 [2020-08-21 14:15:04,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-08-21 14:15:05,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 61. [2020-08-21 14:15:05,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-08-21 14:15:05,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 65 transitions. [2020-08-21 14:15:05,003 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 65 transitions. Word has length 16 [2020-08-21 14:15:05,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:15:05,003 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 65 transitions. [2020-08-21 14:15:05,003 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 14:15:05,003 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 65 transitions. [2020-08-21 14:15:05,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-08-21 14:15:05,007 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:15:05,007 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 14:15:05,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-21 14:15:05,008 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:15:05,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:15:05,008 INFO L82 PathProgramCache]: Analyzing trace with hash -42288514, now seen corresponding path program 1 times [2020-08-21 14:15:05,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:15:05,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [476149306] [2020-08-21 14:15:05,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:15:05,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:15:05,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:15:05,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:15:05,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 14:15:05,061 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [476149306] [2020-08-21 14:15:05,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 14:15:05,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 14:15:05,061 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353660303] [2020-08-21 14:15:05,062 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 14:15:05,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:15:05,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 14:15:05,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 14:15:05,063 INFO L87 Difference]: Start difference. First operand 61 states and 65 transitions. Second operand 6 states. [2020-08-21 14:15:05,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:15:05,264 INFO L93 Difference]: Finished difference Result 93 states and 99 transitions. [2020-08-21 14:15:05,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 14:15:05,264 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-08-21 14:15:05,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:15:05,266 INFO L225 Difference]: With dead ends: 93 [2020-08-21 14:15:05,266 INFO L226 Difference]: Without dead ends: 91 [2020-08-21 14:15:05,267 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 [2020-08-21 14:15:05,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-08-21 14:15:05,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 59. [2020-08-21 14:15:05,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-08-21 14:15:05,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 63 transitions. [2020-08-21 14:15:05,282 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 63 transitions. Word has length 16 [2020-08-21 14:15:05,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:15:05,282 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 63 transitions. [2020-08-21 14:15:05,282 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 14:15:05,282 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 63 transitions. [2020-08-21 14:15:05,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-08-21 14:15:05,287 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:15:05,287 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 14:15:05,288 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-21 14:15:05,288 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:15:05,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:15:05,288 INFO L82 PathProgramCache]: Analyzing trace with hash -42716511, now seen corresponding path program 1 times [2020-08-21 14:15:05,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:15:05,291 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2130842738] [2020-08-21 14:15:05,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:15:05,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:15:05,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:15:05,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:15:05,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 14:15:05,365 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2130842738] [2020-08-21 14:15:05,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 14:15:05,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 14:15:05,365 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137101329] [2020-08-21 14:15:05,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 14:15:05,366 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:15:05,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 14:15:05,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-21 14:15:05,367 INFO L87 Difference]: Start difference. First operand 59 states and 63 transitions. Second operand 5 states. [2020-08-21 14:15:05,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:15:05,495 INFO L93 Difference]: Finished difference Result 61 states and 65 transitions. [2020-08-21 14:15:05,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 14:15:05,496 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-08-21 14:15:05,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:15:05,497 INFO L225 Difference]: With dead ends: 61 [2020-08-21 14:15:05,497 INFO L226 Difference]: Without dead ends: 57 [2020-08-21 14:15:05,499 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-08-21 14:15:05,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-08-21 14:15:05,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2020-08-21 14:15:05,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-08-21 14:15:05,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2020-08-21 14:15:05,513 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 16 [2020-08-21 14:15:05,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:15:05,513 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2020-08-21 14:15:05,513 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 14:15:05,514 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2020-08-21 14:15:05,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-08-21 14:15:05,515 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:15:05,515 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 14:15:05,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-21 14:15:05,515 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:15:05,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:15:05,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1083648192, now seen corresponding path program 1 times [2020-08-21 14:15:05,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:15:05,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [700795693] [2020-08-21 14:15:05,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:15:05,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:15:05,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:15:05,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:15:05,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 14:15:05,584 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [700795693] [2020-08-21 14:15:05,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 14:15:05,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 14:15:05,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141240804] [2020-08-21 14:15:05,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 14:15:05,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:15:05,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 14:15:05,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 14:15:05,586 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand 6 states. [2020-08-21 14:15:05,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:15:05,733 INFO L93 Difference]: Finished difference Result 74 states and 80 transitions. [2020-08-21 14:15:05,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 14:15:05,734 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-08-21 14:15:05,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:15:05,735 INFO L225 Difference]: With dead ends: 74 [2020-08-21 14:15:05,735 INFO L226 Difference]: Without dead ends: 72 [2020-08-21 14:15:05,736 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 [2020-08-21 14:15:05,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-08-21 14:15:05,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 53. [2020-08-21 14:15:05,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-08-21 14:15:05,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2020-08-21 14:15:05,744 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 17 [2020-08-21 14:15:05,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:15:05,745 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2020-08-21 14:15:05,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 14:15:05,745 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2020-08-21 14:15:05,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-08-21 14:15:05,746 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:15:05,746 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 14:15:05,746 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-21 14:15:05,747 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:15:05,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:15:05,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1085187392, now seen corresponding path program 1 times [2020-08-21 14:15:05,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:15:05,747 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1187435287] [2020-08-21 14:15:05,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:15:05,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:15:05,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:15:05,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:15:05,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 14:15:05,797 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1187435287] [2020-08-21 14:15:05,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 14:15:05,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 14:15:05,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648988778] [2020-08-21 14:15:05,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 14:15:05,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:15:05,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 14:15:05,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 14:15:05,799 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand 6 states. [2020-08-21 14:15:05,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:15:05,926 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2020-08-21 14:15:05,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 14:15:05,926 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-08-21 14:15:05,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:15:05,927 INFO L225 Difference]: With dead ends: 55 [2020-08-21 14:15:05,927 INFO L226 Difference]: Without dead ends: 53 [2020-08-21 14:15:05,928 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 [2020-08-21 14:15:05,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-08-21 14:15:05,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 51. [2020-08-21 14:15:05,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-08-21 14:15:05,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2020-08-21 14:15:05,932 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 17 [2020-08-21 14:15:05,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:15:05,932 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2020-08-21 14:15:05,933 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 14:15:05,933 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2020-08-21 14:15:05,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-08-21 14:15:05,934 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:15:05,934 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 14:15:05,934 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-21 14:15:05,934 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:15:05,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:15:05,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1310509752, now seen corresponding path program 1 times [2020-08-21 14:15:05,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:15:05,935 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [316929815] [2020-08-21 14:15:05,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:15:05,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:15:06,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:15:06,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:15:06,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 14:15:06,011 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [316929815] [2020-08-21 14:15:06,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 14:15:06,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 14:15:06,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294520895] [2020-08-21 14:15:06,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 14:15:06,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:15:06,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 14:15:06,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 14:15:06,014 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand 6 states. [2020-08-21 14:15:06,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:15:06,231 INFO L93 Difference]: Finished difference Result 86 states and 93 transitions. [2020-08-21 14:15:06,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 14:15:06,232 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-08-21 14:15:06,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:15:06,232 INFO L225 Difference]: With dead ends: 86 [2020-08-21 14:15:06,232 INFO L226 Difference]: Without dead ends: 84 [2020-08-21 14:15:06,233 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-08-21 14:15:06,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-08-21 14:15:06,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 49. [2020-08-21 14:15:06,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-08-21 14:15:06,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2020-08-21 14:15:06,237 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 17 [2020-08-21 14:15:06,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:15:06,238 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2020-08-21 14:15:06,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 14:15:06,238 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2020-08-21 14:15:06,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-08-21 14:15:06,239 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:15:06,239 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 14:15:06,239 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-21 14:15:06,239 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:15:06,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:15:06,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1310940728, now seen corresponding path program 1 times [2020-08-21 14:15:06,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:15:06,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2065779938] [2020-08-21 14:15:06,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:15:06,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:15:06,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:15:06,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:15:06,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 14:15:06,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2065779938] [2020-08-21 14:15:06,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 14:15:06,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 14:15:06,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140195620] [2020-08-21 14:15:06,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 14:15:06,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:15:06,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 14:15:06,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 14:15:06,303 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand 6 states. [2020-08-21 14:15:06,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:15:06,519 INFO L93 Difference]: Finished difference Result 76 states and 82 transitions. [2020-08-21 14:15:06,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 14:15:06,520 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-08-21 14:15:06,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:15:06,521 INFO L225 Difference]: With dead ends: 76 [2020-08-21 14:15:06,521 INFO L226 Difference]: Without dead ends: 74 [2020-08-21 14:15:06,521 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-08-21 14:15:06,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-08-21 14:15:06,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 47. [2020-08-21 14:15:06,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-08-21 14:15:06,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2020-08-21 14:15:06,534 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 17 [2020-08-21 14:15:06,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:15:06,535 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2020-08-21 14:15:06,535 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 14:15:06,535 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2020-08-21 14:15:06,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-08-21 14:15:06,541 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:15:06,541 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 14:15:06,542 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-21 14:15:06,542 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:15:06,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:15:06,543 INFO L82 PathProgramCache]: Analyzing trace with hash -765275888, now seen corresponding path program 1 times [2020-08-21 14:15:06,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:15:06,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [120933127] [2020-08-21 14:15:06,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:15:06,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:15:06,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:15:06,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:15:06,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 14:15:06,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [120933127] [2020-08-21 14:15:06,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 14:15:06,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 14:15:06,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615787596] [2020-08-21 14:15:06,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 14:15:06,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:15:06,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 14:15:06,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 14:15:06,627 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand 6 states. [2020-08-21 14:15:06,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:15:06,845 INFO L93 Difference]: Finished difference Result 69 states and 75 transitions. [2020-08-21 14:15:06,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 14:15:06,845 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-08-21 14:15:06,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:15:06,846 INFO L225 Difference]: With dead ends: 69 [2020-08-21 14:15:06,846 INFO L226 Difference]: Without dead ends: 67 [2020-08-21 14:15:06,847 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 [2020-08-21 14:15:06,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-08-21 14:15:06,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 45. [2020-08-21 14:15:06,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-08-21 14:15:06,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2020-08-21 14:15:06,850 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 18 [2020-08-21 14:15:06,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:15:06,851 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2020-08-21 14:15:06,851 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 14:15:06,851 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2020-08-21 14:15:06,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-08-21 14:15:06,851 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:15:06,852 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 14:15:06,852 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-21 14:15:06,852 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:15:06,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:15:06,852 INFO L82 PathProgramCache]: Analyzing trace with hash -766641308, now seen corresponding path program 1 times [2020-08-21 14:15:06,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:15:06,853 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1591230034] [2020-08-21 14:15:06,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:15:06,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:15:06,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:15:06,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:15:06,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 14:15:06,918 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1591230034] [2020-08-21 14:15:06,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 14:15:06,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 14:15:06,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490260445] [2020-08-21 14:15:06,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 14:15:06,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:15:06,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 14:15:06,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 14:15:06,920 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand 6 states. [2020-08-21 14:15:07,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:15:07,090 INFO L93 Difference]: Finished difference Result 59 states and 65 transitions. [2020-08-21 14:15:07,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 14:15:07,090 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-08-21 14:15:07,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:15:07,091 INFO L225 Difference]: With dead ends: 59 [2020-08-21 14:15:07,091 INFO L226 Difference]: Without dead ends: 57 [2020-08-21 14:15:07,092 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-08-21 14:15:07,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-08-21 14:15:07,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 43. [2020-08-21 14:15:07,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-08-21 14:15:07,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2020-08-21 14:15:07,096 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 18 [2020-08-21 14:15:07,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:15:07,096 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2020-08-21 14:15:07,097 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 14:15:07,097 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2020-08-21 14:15:07,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-08-21 14:15:07,097 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:15:07,098 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 14:15:07,098 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-08-21 14:15:07,098 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:15:07,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:15:07,098 INFO L82 PathProgramCache]: Analyzing trace with hash -718926058, now seen corresponding path program 1 times [2020-08-21 14:15:07,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:15:07,099 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [332495514] [2020-08-21 14:15:07,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:15:07,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:15:07,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:15:07,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:15:07,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 14:15:07,174 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [332495514] [2020-08-21 14:15:07,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 14:15:07,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 14:15:07,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242553148] [2020-08-21 14:15:07,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 14:15:07,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:15:07,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 14:15:07,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 14:15:07,176 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand 6 states. [2020-08-21 14:15:07,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:15:07,357 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2020-08-21 14:15:07,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 14:15:07,357 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-08-21 14:15:07,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:15:07,358 INFO L225 Difference]: With dead ends: 43 [2020-08-21 14:15:07,358 INFO L226 Difference]: Without dead ends: 39 [2020-08-21 14:15:07,359 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-08-21 14:15:07,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-08-21 14:15:07,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-08-21 14:15:07,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-08-21 14:15:07,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2020-08-21 14:15:07,362 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 18 [2020-08-21 14:15:07,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:15:07,363 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2020-08-21 14:15:07,363 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 14:15:07,363 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2020-08-21 14:15:07,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-08-21 14:15:07,364 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:15:07,364 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 14:15:07,364 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-08-21 14:15:07,364 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:15:07,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:15:07,365 INFO L82 PathProgramCache]: Analyzing trace with hash 2046254387, now seen corresponding path program 1 times [2020-08-21 14:15:07,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:15:07,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1777854477] [2020-08-21 14:15:07,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:15:07,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:15:07,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:15:07,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:15:07,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 14:15:07,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1777854477] [2020-08-21 14:15:07,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 14:15:07,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 14:15:07,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683223890] [2020-08-21 14:15:07,425 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 14:15:07,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:15:07,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 14:15:07,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 14:15:07,426 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand 6 states. [2020-08-21 14:15:07,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:15:07,579 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2020-08-21 14:15:07,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 14:15:07,579 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-08-21 14:15:07,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:15:07,580 INFO L225 Difference]: With dead ends: 54 [2020-08-21 14:15:07,580 INFO L226 Difference]: Without dead ends: 52 [2020-08-21 14:15:07,581 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-08-21 14:15:07,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-08-21 14:15:07,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 37. [2020-08-21 14:15:07,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-08-21 14:15:07,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2020-08-21 14:15:07,585 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 19 [2020-08-21 14:15:07,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:15:07,585 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2020-08-21 14:15:07,585 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 14:15:07,585 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2020-08-21 14:15:07,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-08-21 14:15:07,586 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:15:07,586 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 14:15:07,586 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-08-21 14:15:07,586 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:15:07,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:15:07,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1992174599, now seen corresponding path program 1 times [2020-08-21 14:15:07,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:15:07,587 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1458159667] [2020-08-21 14:15:07,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:15:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:15:07,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:15:07,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:15:07,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 14:15:07,623 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1458159667] [2020-08-21 14:15:07,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 14:15:07,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 14:15:07,624 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135755727] [2020-08-21 14:15:07,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 14:15:07,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:15:07,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 14:15:07,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-21 14:15:07,631 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 5 states. [2020-08-21 14:15:07,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:15:07,711 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2020-08-21 14:15:07,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 14:15:07,711 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-08-21 14:15:07,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:15:07,712 INFO L225 Difference]: With dead ends: 37 [2020-08-21 14:15:07,712 INFO L226 Difference]: Without dead ends: 35 [2020-08-21 14:15:07,712 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 [2020-08-21 14:15:07,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-08-21 14:15:07,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-08-21 14:15:07,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-08-21 14:15:07,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2020-08-21 14:15:07,717 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 20 [2020-08-21 14:15:07,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:15:07,717 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2020-08-21 14:15:07,717 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 14:15:07,717 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2020-08-21 14:15:07,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-08-21 14:15:07,718 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 14:15:07,718 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] [2020-08-21 14:15:07,718 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-08-21 14:15:07,718 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 14:15:07,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 14:15:07,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1627873548, now seen corresponding path program 1 times [2020-08-21 14:15:07,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 14:15:07,719 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [227582546] [2020-08-21 14:15:07,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 14:15:07,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:15:07,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 14:15:07,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 14:15:07,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 14:15:07,776 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [227582546] [2020-08-21 14:15:07,776 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 14:15:07,776 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 14:15:07,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398080234] [2020-08-21 14:15:07,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 14:15:07,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 14:15:07,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 14:15:07,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-21 14:15:07,779 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 5 states. [2020-08-21 14:15:07,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 14:15:07,861 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2020-08-21 14:15:07,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 14:15:07,861 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-08-21 14:15:07,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 14:15:07,862 INFO L225 Difference]: With dead ends: 37 [2020-08-21 14:15:07,862 INFO L226 Difference]: Without dead ends: 0 [2020-08-21 14:15:07,863 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 [2020-08-21 14:15:07,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-21 14:15:07,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-21 14:15:07,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-21 14:15:07,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-21 14:15:07,864 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-08-21 14:15:07,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 14:15:07,864 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-21 14:15:07,864 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 14:15:07,864 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-21 14:15:07,865 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-21 14:15:07,865 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-08-21 14:15:07,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-21 14:15:08,277 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 12 [2020-08-21 14:15:08,281 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-21 14:15:08,282 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_259_0~0 |old(~__tmp_259_0~0)|) (= ~__return_main~0 |old(~__return_main~0)|) (= ~__return_305~0 |old(~__return_305~0)|)) [2020-08-21 14:15:08,282 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-21 14:15:08,282 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-21 14:15:08,282 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-21 14:15:08,282 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-21 14:15:08,283 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-21 14:15:08,283 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-08-21 14:15:08,283 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-08-21 14:15:08,283 INFO L268 CegarLoopResult]: For program point L5-2(lines 4 6) no Hoare annotation was computed. [2020-08-21 14:15:08,283 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-08-21 14:15:08,283 INFO L268 CegarLoopResult]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 112) no Hoare annotation was computed. [2020-08-21 14:15:08,284 INFO L264 CegarLoopResult]: At program point L382(lines 280 389) the Hoare annotation is: (and (<= (+ main_~main__t~0 1) main_~main__tagbuf_len~0) (not (= main_~__VERIFIER_assert__cond~13 0)) (<= 0 main_~main__t~0)) [2020-08-21 14:15:08,284 INFO L264 CegarLoopResult]: At program point L349(lines 30 393) the Hoare annotation is: (and (<= (+ main_~main__t~0 1) main_~main__tagbuf_len~0) (<= 0 main_~main__t~0)) [2020-08-21 14:15:08,284 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 400) no Hoare annotation was computed. [2020-08-21 14:15:08,284 INFO L268 CegarLoopResult]: For program point L184(lines 184 194) no Hoare annotation was computed. [2020-08-21 14:15:08,284 INFO L268 CegarLoopResult]: For program point L374(lines 374 383) no Hoare annotation was computed. [2020-08-21 14:15:08,285 INFO L268 CegarLoopResult]: For program point L341(lines 341 350) no Hoare annotation was computed. [2020-08-21 14:15:08,285 INFO L268 CegarLoopResult]: For program point L110(lines 110 201) no Hoare annotation was computed. [2020-08-21 14:15:08,285 INFO L268 CegarLoopResult]: For program point L234(line 234) no Hoare annotation was computed. [2020-08-21 14:15:08,285 INFO L268 CegarLoopResult]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 276) no Hoare annotation was computed. [2020-08-21 14:15:08,285 INFO L264 CegarLoopResult]: At program point L193(lines 54 251) the Hoare annotation is: (and (<= 1 main_~main__t~0) (<= main_~main__t~0 main_~main__tagbuf_len~0)) [2020-08-21 14:15:08,285 INFO L268 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-08-21 14:15:08,286 INFO L268 CegarLoopResult]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 152) no Hoare annotation was computed. [2020-08-21 14:15:08,286 INFO L268 CegarLoopResult]: For program point L276(line 276) no Hoare annotation was computed. [2020-08-21 14:15:08,286 INFO L268 CegarLoopResult]: For program point mainErr14ASSERT_VIOLATIONERROR_FUNCTION(line 331) no Hoare annotation was computed. [2020-08-21 14:15:08,286 INFO L268 CegarLoopResult]: For program point L103(lines 103 207) no Hoare annotation was computed. [2020-08-21 14:15:08,286 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-08-21 14:15:08,286 INFO L268 CegarLoopResult]: For program point L37(lines 37 253) no Hoare annotation was computed. [2020-08-21 14:15:08,286 INFO L268 CegarLoopResult]: For program point L293(lines 293 315) no Hoare annotation was computed. [2020-08-21 14:15:08,287 INFO L268 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-08-21 14:15:08,287 INFO L268 CegarLoopResult]: For program point L376(line 376) no Hoare annotation was computed. [2020-08-21 14:15:08,287 INFO L268 CegarLoopResult]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 140) no Hoare annotation was computed. [2020-08-21 14:15:08,287 INFO L268 CegarLoopResult]: For program point L343(line 343) no Hoare annotation was computed. [2020-08-21 14:15:08,287 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-08-21 14:15:08,287 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 400) no Hoare annotation was computed. [2020-08-21 14:15:08,288 INFO L268 CegarLoopResult]: For program point mainErr13ASSERT_VIOLATIONERROR_FUNCTION(line 307) no Hoare annotation was computed. [2020-08-21 14:15:08,289 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 50) no Hoare annotation was computed. [2020-08-21 14:15:08,289 INFO L268 CegarLoopResult]: For program point L30(lines 30 393) no Hoare annotation was computed. [2020-08-21 14:15:08,289 INFO L268 CegarLoopResult]: For program point L286(lines 286 388) no Hoare annotation was computed. [2020-08-21 14:15:08,289 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 13 400) the Hoare annotation is: (and (= |old(~__tmp_259_0~0)| ~__tmp_259_0~0) (= |old(~__return_305~0)| ~__return_305~0) (= |old(~__tmp_383_0~0)| ~__tmp_383_0~0)) [2020-08-21 14:15:08,289 INFO L268 CegarLoopResult]: For program point L220(lines 220 242) no Hoare annotation was computed. [2020-08-21 14:15:08,289 INFO L268 CegarLoopResult]: For program point L22(lines 22 394) no Hoare annotation was computed. [2020-08-21 14:15:08,290 INFO L268 CegarLoopResult]: For program point L80(lines 80 90) no Hoare annotation was computed. [2020-08-21 14:15:08,290 INFO L268 CegarLoopResult]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 186) no Hoare annotation was computed. [2020-08-21 14:15:08,290 INFO L268 CegarLoopResult]: For program point L138(lines 138 160) no Hoare annotation was computed. [2020-08-21 14:15:08,290 INFO L268 CegarLoopResult]: For program point L295(line 295) no Hoare annotation was computed. [2020-08-21 14:15:08,290 INFO L268 CegarLoopResult]: For program point mainErr16ASSERT_VIOLATIONERROR_FUNCTION(line 364) no Hoare annotation was computed. [2020-08-21 14:15:08,290 INFO L268 CegarLoopResult]: For program point L122(lines 122 199) no Hoare annotation was computed. [2020-08-21 14:15:08,290 INFO L268 CegarLoopResult]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 174) no Hoare annotation was computed. [2020-08-21 14:15:08,291 INFO L271 CegarLoopResult]: At program point L312(lines 30 393) the Hoare annotation is: true [2020-08-21 14:15:08,291 INFO L268 CegarLoopResult]: For program point L213(lines 213 248) no Hoare annotation was computed. [2020-08-21 14:15:08,291 INFO L268 CegarLoopResult]: For program point L48(lines 48 251) no Hoare annotation was computed. [2020-08-21 14:15:08,291 INFO L268 CegarLoopResult]: For program point mainErr15ASSERT_VIOLATIONERROR_FUNCTION(line 343) no Hoare annotation was computed. [2020-08-21 14:15:08,291 INFO L268 CegarLoopResult]: For program point L172(lines 172 196) no Hoare annotation was computed. [2020-08-21 14:15:08,291 INFO L268 CegarLoopResult]: For program point L362(lines 362 385) no Hoare annotation was computed. [2020-08-21 14:15:08,291 INFO L268 CegarLoopResult]: For program point L329(lines 329 352) no Hoare annotation was computed. [2020-08-21 14:15:08,291 INFO L268 CegarLoopResult]: For program point L263(lines 263 391) no Hoare annotation was computed. [2020-08-21 14:15:08,291 INFO L268 CegarLoopResult]: For program point L131(lines 131 198) no Hoare annotation was computed. [2020-08-21 14:15:08,292 INFO L268 CegarLoopResult]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 82) no Hoare annotation was computed. [2020-08-21 14:15:08,292 INFO L268 CegarLoopResult]: For program point L222(line 222) no Hoare annotation was computed. [2020-08-21 14:15:08,292 INFO L264 CegarLoopResult]: At program point L247(lines 99 249) the Hoare annotation is: (and (<= (+ main_~main__t~0 1) main_~main__tagbuf_len~0) (<= 1 main_~main__t~0)) [2020-08-21 14:15:08,292 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-08-21 14:15:08,293 INFO L268 CegarLoopResult]: For program point L305(lines 305 313) no Hoare annotation was computed. [2020-08-21 14:15:08,293 INFO L268 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-08-21 14:15:08,293 INFO L268 CegarLoopResult]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 234) no Hoare annotation was computed. [2020-08-21 14:15:08,293 INFO L268 CegarLoopResult]: For program point L99(lines 99 249) no Hoare annotation was computed. [2020-08-21 14:15:08,293 INFO L268 CegarLoopResult]: For program point L322(lines 322 387) no Hoare annotation was computed. [2020-08-21 14:15:08,293 INFO L268 CegarLoopResult]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 70) no Hoare annotation was computed. [2020-08-21 14:15:08,293 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-08-21 14:15:08,293 INFO L268 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-08-21 14:15:08,293 INFO L268 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-08-21 14:15:08,294 INFO L268 CegarLoopResult]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 222) no Hoare annotation was computed. [2020-08-21 14:15:08,294 INFO L268 CegarLoopResult]: For program point L364(line 364) no Hoare annotation was computed. [2020-08-21 14:15:08,294 INFO L268 CegarLoopResult]: For program point L331(line 331) no Hoare annotation was computed. [2020-08-21 14:15:08,294 INFO L268 CegarLoopResult]: For program point L232(lines 232 240) no Hoare annotation was computed. [2020-08-21 14:15:08,294 INFO L268 CegarLoopResult]: For program point mainErr17ASSERT_VIOLATIONERROR_FUNCTION(line 376) no Hoare annotation was computed. [2020-08-21 14:15:08,294 INFO L268 CegarLoopResult]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 124) no Hoare annotation was computed. [2020-08-21 14:15:08,294 INFO L268 CegarLoopResult]: For program point L150(lines 150 158) no Hoare annotation was computed. [2020-08-21 14:15:08,294 INFO L268 CegarLoopResult]: For program point L307(line 307) no Hoare annotation was computed. [2020-08-21 14:15:08,295 INFO L268 CegarLoopResult]: For program point L18(lines 18 399) no Hoare annotation was computed. [2020-08-21 14:15:08,295 INFO L268 CegarLoopResult]: For program point L274(lines 274 389) no Hoare annotation was computed. [2020-08-21 14:15:08,295 INFO L268 CegarLoopResult]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 295) no Hoare annotation was computed. [2020-08-21 14:15:08,295 INFO L268 CegarLoopResult]: For program point L68(lines 68 92) no Hoare annotation was computed. [2020-08-21 14:15:08,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 02:15:08 BoogieIcfgContainer [2020-08-21 14:15:08,322 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 14:15:08,325 INFO L168 Benchmark]: Toolchain (without parser) took 7103.38 ms. Allocated memory was 148.4 MB in the beginning and 284.2 MB in the end (delta: 135.8 MB). Free memory was 102.7 MB in the beginning and 248.9 MB in the end (delta: -146.2 MB). Peak memory consumption was 119.2 MB. Max. memory is 7.1 GB. [2020-08-21 14:15:08,327 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 148.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-21 14:15:08,333 INFO L168 Benchmark]: CACSL2BoogieTranslator took 649.84 ms. Allocated memory was 148.4 MB in the beginning and 207.1 MB in the end (delta: 58.7 MB). Free memory was 102.5 MB in the beginning and 185.4 MB in the end (delta: -82.9 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-08-21 14:15:08,334 INFO L168 Benchmark]: Boogie Preprocessor took 45.99 ms. Allocated memory is still 207.1 MB. Free memory was 185.4 MB in the beginning and 183.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-08-21 14:15:08,339 INFO L168 Benchmark]: RCFGBuilder took 538.22 ms. Allocated memory is still 207.1 MB. Free memory was 183.1 MB in the beginning and 157.2 MB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. [2020-08-21 14:15:08,340 INFO L168 Benchmark]: TraceAbstraction took 5864.13 ms. Allocated memory was 207.1 MB in the beginning and 284.2 MB in the end (delta: 77.1 MB). Free memory was 157.2 MB in the beginning and 248.9 MB in the end (delta: -91.8 MB). Peak memory consumption was 114.9 MB. Max. memory is 7.1 GB. [2020-08-21 14:15:08,350 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 148.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 649.84 ms. Allocated memory was 148.4 MB in the beginning and 207.1 MB in the end (delta: 58.7 MB). Free memory was 102.5 MB in the beginning and 185.4 MB in the end (delta: -82.9 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 45.99 ms. Allocated memory is still 207.1 MB. Free memory was 185.4 MB in the beginning and 183.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 538.22 ms. Allocated memory is still 207.1 MB. Free memory was 183.1 MB in the beginning and 157.2 MB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5864.13 ms. Allocated memory was 207.1 MB in the beginning and 284.2 MB in the end (delta: 77.1 MB). Free memory was 157.2 MB in the beginning and 248.9 MB in the end (delta: -91.8 MB). Peak memory consumption was 114.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 50]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 343]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 364]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 174]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 186]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 307]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 222]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 234]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 331]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 295]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 124]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 276]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 376]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 82]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 152]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 140]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 112]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 70]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: 1 <= main__t && main__t <= main__tagbuf_len - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: main__t + 1 <= main__tagbuf_len && 1 <= main__t - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: main__t + 1 <= main__tagbuf_len && 0 <= main__t - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 280]: Loop Invariant Derived loop invariant: (main__t + 1 <= main__tagbuf_len && !(__VERIFIER_assert__cond == 0)) && 0 <= main__t - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 84 locations, 18 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.3s, OverallIterations: 18, TraceHistogramMax: 1, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 838 SDtfs, 1435 SDslu, 856 SDs, 0 SdLazy, 2218 SolverSat, 136 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 187 GetRequests, 67 SyntacticMatches, 7 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred 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, 295 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 14 NumberOfFragments, 64 HoareAnnotationTreeSize, 9 FomulaSimplifications, 145186 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 6289 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 300 NumberOfCodeBlocks, 300 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 282 ConstructedInterpolants, 0 QuantifiedInterpolants, 13120 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...