/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 14:12:05,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 14:12:05,593 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 14:12:05,605 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 14:12:05,605 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 14:12:05,606 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 14:12:05,607 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 14:12:05,609 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 14:12:05,611 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 14:12:05,612 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 14:12:05,612 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 14:12:05,614 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 14:12:05,614 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 14:12:05,615 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 14:12:05,616 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 14:12:05,617 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 14:12:05,618 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 14:12:05,619 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 14:12:05,620 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 14:12:05,622 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 14:12:05,624 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 14:12:05,625 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 14:12:05,626 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 14:12:05,626 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 14:12:05,629 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 14:12:05,636 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 14:12:05,637 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 14:12:05,638 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 14:12:05,638 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 14:12:05,659 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 14:12:05,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 14:12:05,660 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 14:12:05,660 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 14:12:05,661 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 14:12:05,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 14:12:05,661 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 14:12:05,661 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 14:12:05,661 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 14:12:05,661 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 14:12:05,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 14:12:05,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 14:12:05,662 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 14:12:05,662 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 14:12:05,662 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 14:12:05,662 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 14:12:05,663 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 14:12:05,663 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 14:12:05,663 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 14:12:05,663 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 14:12:05,663 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 14:12:05,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 14:12:05,664 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 14:12:05,664 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 14:12:05,664 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 14:12:05,664 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 14:12:05,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:05,665 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 14:12:05,665 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 14:12:05,665 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 -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 14:12:05,930 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 14:12:05,951 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 14:12:05,955 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 14:12:05,958 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 14:12:05,959 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 14:12:05,959 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-07-21 14:12:06,038 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6f54e3a2/e62ca74a9f6047c780004d4598b0dfe8/FLAGc6e126d6e [2020-07-21 14:12:06,491 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 14:12:06,491 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-07-21 14:12:06,500 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6f54e3a2/e62ca74a9f6047c780004d4598b0dfe8/FLAGc6e126d6e [2020-07-21 14:12:06,838 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6f54e3a2/e62ca74a9f6047c780004d4598b0dfe8 [2020-07-21 14:12:06,846 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 14:12:06,849 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 14:12:06,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 14:12:06,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 14:12:06,854 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 14:12:06,855 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:12:06" (1/1) ... [2020-07-21 14:12:06,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a9f735c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:12:06, skipping insertion in model container [2020-07-21 14:12:06,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:12:06" (1/1) ... [2020-07-21 14:12:06,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 14:12:06,897 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 14:12:07,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 14:12:07,108 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 14:12:07,155 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 14:12:07,178 INFO L208 MainTranslator]: Completed translation [2020-07-21 14:12:07,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:12:07 WrapperNode [2020-07-21 14:12:07,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 14:12:07,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 14:12:07,180 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 14:12:07,180 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 14:12:07,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:12:07" (1/1) ... [2020-07-21 14:12:07,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:12:07" (1/1) ... [2020-07-21 14:12:07,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:12:07" (1/1) ... [2020-07-21 14:12:07,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:12:07" (1/1) ... [2020-07-21 14:12:07,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:12:07" (1/1) ... [2020-07-21 14:12:07,294 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:12:07" (1/1) ... [2020-07-21 14:12:07,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:12:07" (1/1) ... [2020-07-21 14:12:07,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 14:12:07,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 14:12:07,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 14:12:07,300 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 14:12:07,301 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:12:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-07-21 14:12:07,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 14:12:07,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 14:12:07,365 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-21 14:12:07,366 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 14:12:07,366 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 14:12:07,366 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-21 14:12:07,366 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-21 14:12:07,366 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-21 14:12:07,366 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 14:12:07,366 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 14:12:07,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 14:12:07,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 14:12:07,956 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 14:12:07,956 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-21 14:12:07,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 02:12:07 BoogieIcfgContainer [2020-07-21 14:12:07,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 14:12:07,963 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 14:12:07,963 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 14:12:07,966 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 14:12:07,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 02:12:06" (1/3) ... [2020-07-21 14:12:07,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44669292 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 02:12:07, skipping insertion in model container [2020-07-21 14:12:07,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:12:07" (2/3) ... [2020-07-21 14:12:07,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44669292 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 02:12:07, skipping insertion in model container [2020-07-21 14:12:07,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 02:12:07" (3/3) ... [2020-07-21 14:12:07,969 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i.v+cfa-reducer.c [2020-07-21 14:12:07,978 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 14:12:07,985 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2020-07-21 14:12:07,999 INFO L251 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2020-07-21 14:12:08,023 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 14:12:08,024 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 14:12:08,024 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 14:12:08,024 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 14:12:08,024 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 14:12:08,024 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 14:12:08,024 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 14:12:08,025 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 14:12:08,049 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2020-07-21 14:12:08,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-07-21 14:12:08,056 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:12:08,057 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 14:12:08,058 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]=== [2020-07-21 14:12:08,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:12:08,064 INFO L82 PathProgramCache]: Analyzing trace with hash -2019463306, now seen corresponding path program 1 times [2020-07-21 14:12:08,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:12:08,073 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2142621676] [2020-07-21 14:12:08,073 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:08,191 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:12:08,191 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:12:08,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 14:12:08,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:12:08,244 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:08,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 14:12:08,278 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:12:08,279 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2142621676] [2020-07-21 14:12:08,279 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:12:08,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 14:12:08,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059809449] [2020-07-21 14:12:08,286 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 14:12:08,286 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:12:08,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 14:12:08,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 14:12:08,308 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 3 states. [2020-07-21 14:12:08,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:12:08,346 INFO L93 Difference]: Finished difference Result 93 states and 129 transitions. [2020-07-21 14:12:08,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 14:12:08,348 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-07-21 14:12:08,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:12:08,359 INFO L225 Difference]: With dead ends: 93 [2020-07-21 14:12:08,360 INFO L226 Difference]: Without dead ends: 80 [2020-07-21 14:12:08,363 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 14:12:08,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-07-21 14:12:08,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-07-21 14:12:08,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-07-21 14:12:08,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 83 transitions. [2020-07-21 14:12:08,408 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 83 transitions. Word has length 19 [2020-07-21 14:12:08,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:12:08,409 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 83 transitions. [2020-07-21 14:12:08,409 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 14:12:08,410 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 83 transitions. [2020-07-21 14:12:08,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-07-21 14:12:08,410 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:12:08,411 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] [2020-07-21 14:12:08,626 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:08,628 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]=== [2020-07-21 14:12:08,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:12:08,629 INFO L82 PathProgramCache]: Analyzing trace with hash 1821150056, now seen corresponding path program 1 times [2020-07-21 14:12:08,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:12:08,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [844263403] [2020-07-21 14:12:08,630 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:08,678 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:12:08,679 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:12:08,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 14:12:08,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:12:08,717 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:08,719 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:08,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 14:12:08,730 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:12:08,730 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [844263403] [2020-07-21 14:12:08,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:12:08,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 14:12:08,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273769944] [2020-07-21 14:12:08,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 14:12:08,733 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:12:08,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 14:12:08,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 14:12:08,734 INFO L87 Difference]: Start difference. First operand 80 states and 83 transitions. Second operand 6 states. [2020-07-21 14:12:08,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:12:08,874 INFO L93 Difference]: Finished difference Result 80 states and 83 transitions. [2020-07-21 14:12:08,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 14:12:08,876 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2020-07-21 14:12:08,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:12:08,877 INFO L225 Difference]: With dead ends: 80 [2020-07-21 14:12:08,878 INFO L226 Difference]: Without dead ends: 78 [2020-07-21 14:12:08,879 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 14:12:08,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-07-21 14:12:08,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-07-21 14:12:08,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-07-21 14:12:08,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 81 transitions. [2020-07-21 14:12:08,904 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 81 transitions. Word has length 20 [2020-07-21 14:12:08,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:12:08,907 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 81 transitions. [2020-07-21 14:12:08,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 14:12:08,907 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 81 transitions. [2020-07-21 14:12:08,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-21 14:12:08,908 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:12:08,908 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 14:12:09,124 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:09,128 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]=== [2020-07-21 14:12:09,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:12:09,129 INFO L82 PathProgramCache]: Analyzing trace with hash 2073610827, now seen corresponding path program 1 times [2020-07-21 14:12:09,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:12:09,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [410765740] [2020-07-21 14:12:09,130 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:09,186 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:12:09,186 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:12:09,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 14:12:09,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:12:09,201 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:09,203 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:09,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 14:12:09,229 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:12:09,229 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [410765740] [2020-07-21 14:12:09,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:12:09,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-21 14:12:09,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436622514] [2020-07-21 14:12:09,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 14:12:09,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:12:09,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 14:12:09,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-21 14:12:09,232 INFO L87 Difference]: Start difference. First operand 78 states and 81 transitions. Second operand 4 states. [2020-07-21 14:12:09,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:12:09,312 INFO L93 Difference]: Finished difference Result 101 states and 106 transitions. [2020-07-21 14:12:09,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 14:12:09,312 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-07-21 14:12:09,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:12:09,314 INFO L225 Difference]: With dead ends: 101 [2020-07-21 14:12:09,314 INFO L226 Difference]: Without dead ends: 99 [2020-07-21 14:12:09,314 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 14:12:09,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-07-21 14:12:09,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 76. [2020-07-21 14:12:09,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-07-21 14:12:09,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2020-07-21 14:12:09,325 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 22 [2020-07-21 14:12:09,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:12:09,326 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2020-07-21 14:12:09,326 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 14:12:09,326 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2020-07-21 14:12:09,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-21 14:12:09,327 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:12:09,327 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 14:12:09,543 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:09,544 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]=== [2020-07-21 14:12:09,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:12:09,545 INFO L82 PathProgramCache]: Analyzing trace with hash -142570686, now seen corresponding path program 1 times [2020-07-21 14:12:09,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:12:09,546 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1095333027] [2020-07-21 14:12:09,547 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:09,589 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:12:09,589 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:12:09,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 14:12:09,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:12:09,620 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:09,622 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:09,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 14:12:09,632 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:12:09,633 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1095333027] [2020-07-21 14:12:09,633 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:12:09,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 14:12:09,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494853687] [2020-07-21 14:12:09,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 14:12:09,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:12:09,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 14:12:09,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 14:12:09,635 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand 5 states. [2020-07-21 14:12:09,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:12:09,732 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2020-07-21 14:12:09,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 14:12:09,733 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-07-21 14:12:09,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:12:09,734 INFO L225 Difference]: With dead ends: 76 [2020-07-21 14:12:09,734 INFO L226 Difference]: Without dead ends: 74 [2020-07-21 14:12:09,735 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 14:12:09,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-07-21 14:12:09,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-07-21 14:12:09,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-07-21 14:12:09,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 77 transitions. [2020-07-21 14:12:09,752 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 77 transitions. Word has length 23 [2020-07-21 14:12:09,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:12:09,755 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 77 transitions. [2020-07-21 14:12:09,755 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 14:12:09,756 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 77 transitions. [2020-07-21 14:12:09,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-21 14:12:09,756 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:12:09,757 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 14:12:09,972 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:09,973 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]=== [2020-07-21 14:12:09,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:12:09,974 INFO L82 PathProgramCache]: Analyzing trace with hash 402497124, now seen corresponding path program 1 times [2020-07-21 14:12:09,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:12:09,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2134872145] [2020-07-21 14:12:09,975 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:10,013 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:12:10,013 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:12:10,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 14:12:10,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:12:10,033 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:10,035 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:10,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 14:12:10,047 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:12:10,047 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2134872145] [2020-07-21 14:12:10,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:12:10,047 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-21 14:12:10,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965044806] [2020-07-21 14:12:10,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 14:12:10,048 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:12:10,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 14:12:10,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-21 14:12:10,049 INFO L87 Difference]: Start difference. First operand 74 states and 77 transitions. Second operand 4 states. [2020-07-21 14:12:10,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:12:10,183 INFO L93 Difference]: Finished difference Result 158 states and 166 transitions. [2020-07-21 14:12:10,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 14:12:10,184 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-07-21 14:12:10,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:12:10,185 INFO L225 Difference]: With dead ends: 158 [2020-07-21 14:12:10,186 INFO L226 Difference]: Without dead ends: 156 [2020-07-21 14:12:10,189 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 14:12:10,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-07-21 14:12:10,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 77. [2020-07-21 14:12:10,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-07-21 14:12:10,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2020-07-21 14:12:10,208 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 26 [2020-07-21 14:12:10,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:12:10,208 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2020-07-21 14:12:10,208 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 14:12:10,209 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2020-07-21 14:12:10,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-21 14:12:10,212 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:12:10,212 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 14:12:10,419 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:10,420 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]=== [2020-07-21 14:12:10,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:12:10,420 INFO L82 PathProgramCache]: Analyzing trace with hash 406230933, now seen corresponding path program 1 times [2020-07-21 14:12:10,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:12:10,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1590968074] [2020-07-21 14:12:10,421 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:10,460 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:12:10,460 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:12:10,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 14:12:10,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:12:10,482 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:10,486 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:10,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 14:12:10,498 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:12:10,498 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1590968074] [2020-07-21 14:12:10,498 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:12:10,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-21 14:12:10,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548464865] [2020-07-21 14:12:10,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 14:12:10,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:12:10,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 14:12:10,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-21 14:12:10,499 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand 4 states. [2020-07-21 14:12:10,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:12:10,578 INFO L93 Difference]: Finished difference Result 124 states and 130 transitions. [2020-07-21 14:12:10,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 14:12:10,578 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-07-21 14:12:10,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:12:10,580 INFO L225 Difference]: With dead ends: 124 [2020-07-21 14:12:10,582 INFO L226 Difference]: Without dead ends: 122 [2020-07-21 14:12:10,583 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 14:12:10,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-07-21 14:12:10,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 79. [2020-07-21 14:12:10,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-07-21 14:12:10,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2020-07-21 14:12:10,591 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 26 [2020-07-21 14:12:10,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:12:10,592 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2020-07-21 14:12:10,592 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 14:12:10,592 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2020-07-21 14:12:10,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-21 14:12:10,593 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:12:10,593 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 14:12:10,807 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:10,808 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]=== [2020-07-21 14:12:10,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:12:10,809 INFO L82 PathProgramCache]: Analyzing trace with hash -407487796, now seen corresponding path program 1 times [2020-07-21 14:12:10,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:12:10,810 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1873331584] [2020-07-21 14:12:10,810 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:10,847 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:12:10,847 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:12:10,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 14:12:10,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:12:10,867 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 14:12:10,868 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:10,874 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:10,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 14:12:10,886 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:12:10,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1873331584] [2020-07-21 14:12:10,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:12:10,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 14:12:10,887 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764355714] [2020-07-21 14:12:10,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 14:12:10,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:12:10,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 14:12:10,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 14:12:10,888 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand 5 states. [2020-07-21 14:12:11,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:12:11,046 INFO L93 Difference]: Finished difference Result 121 states and 127 transitions. [2020-07-21 14:12:11,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 14:12:11,046 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-07-21 14:12:11,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:12:11,048 INFO L225 Difference]: With dead ends: 121 [2020-07-21 14:12:11,048 INFO L226 Difference]: Without dead ends: 119 [2020-07-21 14:12:11,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 14:12:11,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-07-21 14:12:11,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 77. [2020-07-21 14:12:11,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-07-21 14:12:11,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2020-07-21 14:12:11,070 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 27 [2020-07-21 14:12:11,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:12:11,072 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2020-07-21 14:12:11,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 14:12:11,072 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2020-07-21 14:12:11,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-21 14:12:11,074 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:12:11,074 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 14:12:11,286 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:11,287 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]=== [2020-07-21 14:12:11,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:12:11,288 INFO L82 PathProgramCache]: Analyzing trace with hash -291739827, now seen corresponding path program 1 times [2020-07-21 14:12:11,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:12:11,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2034913975] [2020-07-21 14:12:11,289 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:11,339 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:12:11,339 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:12:11,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 14:12:11,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:12:11,375 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:11,377 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:11,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 14:12:11,389 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:12:11,390 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2034913975] [2020-07-21 14:12:11,390 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:12:11,390 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 14:12:11,390 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550149645] [2020-07-21 14:12:11,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 14:12:11,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:12:11,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 14:12:11,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 14:12:11,391 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand 6 states. [2020-07-21 14:12:11,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:12:11,461 INFO L93 Difference]: Finished difference Result 77 states and 82 transitions. [2020-07-21 14:12:11,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 14:12:11,461 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-07-21 14:12:11,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:12:11,462 INFO L225 Difference]: With dead ends: 77 [2020-07-21 14:12:11,462 INFO L226 Difference]: Without dead ends: 75 [2020-07-21 14:12:11,462 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-07-21 14:12:11,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-07-21 14:12:11,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-07-21 14:12:11,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-07-21 14:12:11,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2020-07-21 14:12:11,469 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 80 transitions. Word has length 27 [2020-07-21 14:12:11,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:12:11,470 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 80 transitions. [2020-07-21 14:12:11,470 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 14:12:11,470 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 80 transitions. [2020-07-21 14:12:11,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-07-21 14:12:11,471 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:12:11,471 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 14:12:11,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:11,683 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]=== [2020-07-21 14:12:11,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:12:11,684 INFO L82 PathProgramCache]: Analyzing trace with hash -1188998893, now seen corresponding path program 1 times [2020-07-21 14:12:11,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:12:11,685 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1298425414] [2020-07-21 14:12:11,686 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:11,728 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:12:11,729 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:12:11,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 14:12:11,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:12:11,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 14:12:11,753 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:12:11,753 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1298425414] [2020-07-21 14:12:11,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:12:11,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 14:12:11,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012691816] [2020-07-21 14:12:11,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 14:12:11,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:12:11,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 14:12:11,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 14:12:11,755 INFO L87 Difference]: Start difference. First operand 75 states and 80 transitions. Second operand 3 states. [2020-07-21 14:12:11,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:12:11,815 INFO L93 Difference]: Finished difference Result 115 states and 121 transitions. [2020-07-21 14:12:11,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 14:12:11,815 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2020-07-21 14:12:11,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:12:11,816 INFO L225 Difference]: With dead ends: 115 [2020-07-21 14:12:11,816 INFO L226 Difference]: Without dead ends: 75 [2020-07-21 14:12:11,817 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 14:12:11,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-07-21 14:12:11,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-07-21 14:12:11,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-07-21 14:12:11,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 78 transitions. [2020-07-21 14:12:11,823 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 78 transitions. Word has length 29 [2020-07-21 14:12:11,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:12:11,823 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 78 transitions. [2020-07-21 14:12:11,823 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 14:12:11,823 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 78 transitions. [2020-07-21 14:12:11,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-21 14:12:11,824 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:12:11,824 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 14:12:12,028 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:12,029 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]=== [2020-07-21 14:12:12,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:12:12,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1640998784, now seen corresponding path program 1 times [2020-07-21 14:12:12,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:12:12,031 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [144959515] [2020-07-21 14:12:12,031 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:12,079 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:12:12,079 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:12:12,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 14:12:12,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:12:12,097 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:12,099 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 14:12:12,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 14:12:12,107 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:12:12,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [144959515] [2020-07-21 14:12:12,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:12:12,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-21 14:12:12,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609545793] [2020-07-21 14:12:12,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 14:12:12,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:12:12,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 14:12:12,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-21 14:12:12,109 INFO L87 Difference]: Start difference. First operand 75 states and 78 transitions. Second operand 4 states. [2020-07-21 14:12:12,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:12:12,174 INFO L93 Difference]: Finished difference Result 114 states and 118 transitions. [2020-07-21 14:12:12,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 14:12:12,175 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-07-21 14:12:12,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:12:12,176 INFO L225 Difference]: With dead ends: 114 [2020-07-21 14:12:12,176 INFO L226 Difference]: Without dead ends: 112 [2020-07-21 14:12:12,177 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 14:12:12,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-07-21 14:12:12,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 78. [2020-07-21 14:12:12,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-07-21 14:12:12,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 81 transitions. [2020-07-21 14:12:12,182 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 81 transitions. Word has length 30 [2020-07-21 14:12:12,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:12:12,182 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 81 transitions. [2020-07-21 14:12:12,182 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 14:12:12,182 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 81 transitions. [2020-07-21 14:12:12,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-21 14:12:12,183 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:12:12,184 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 14:12:12,397 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:12,398 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]=== [2020-07-21 14:12:12,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:12:12,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1892106755, now seen corresponding path program 1 times [2020-07-21 14:12:12,400 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:12:12,400 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2105770641] [2020-07-21 14:12:12,401 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:12,440 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:12:12,440 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:12:12,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 14:12:12,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:12:12,487 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:12,489 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:12,497 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-21 14:12:12,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 14:12:12,505 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 14:12:12,548 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-21 14:12:12,549 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2105770641] [2020-07-21 14:12:12,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 14:12:12,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2020-07-21 14:12:12,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942942143] [2020-07-21 14:12:12,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 14:12:12,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:12:12,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 14:12:12,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 14:12:12,551 INFO L87 Difference]: Start difference. First operand 78 states and 81 transitions. Second operand 5 states. [2020-07-21 14:12:12,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:12:12,649 INFO L93 Difference]: Finished difference Result 113 states and 117 transitions. [2020-07-21 14:12:12,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 14:12:12,649 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-07-21 14:12:12,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:12:12,651 INFO L225 Difference]: With dead ends: 113 [2020-07-21 14:12:12,651 INFO L226 Difference]: Without dead ends: 111 [2020-07-21 14:12:12,652 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 51 SyntacticMatches, 5 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-21 14:12:12,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-07-21 14:12:12,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 75. [2020-07-21 14:12:12,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-07-21 14:12:12,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 78 transitions. [2020-07-21 14:12:12,658 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 78 transitions. Word has length 30 [2020-07-21 14:12:12,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:12:12,658 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 78 transitions. [2020-07-21 14:12:12,658 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 14:12:12,658 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 78 transitions. [2020-07-21 14:12:12,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-21 14:12:12,659 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:12:12,659 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 14:12:12,866 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:12,867 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]=== [2020-07-21 14:12:12,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:12:12,868 INFO L82 PathProgramCache]: Analyzing trace with hash 668648404, now seen corresponding path program 1 times [2020-07-21 14:12:12,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:12:12,869 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [533444609] [2020-07-21 14:12:12,869 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:12,903 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:12:12,903 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:12:12,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 14:12:12,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:12:12,919 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:12,920 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:12,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 14:12:12,928 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:12:12,928 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [533444609] [2020-07-21 14:12:12,929 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:12:12,929 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 14:12:12,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113809448] [2020-07-21 14:12:12,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 14:12:12,930 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:12:12,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 14:12:12,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 14:12:12,930 INFO L87 Difference]: Start difference. First operand 75 states and 78 transitions. Second operand 5 states. [2020-07-21 14:12:12,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:12:12,985 INFO L93 Difference]: Finished difference Result 75 states and 78 transitions. [2020-07-21 14:12:12,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 14:12:12,986 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-07-21 14:12:12,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:12:12,987 INFO L225 Difference]: With dead ends: 75 [2020-07-21 14:12:12,988 INFO L226 Difference]: Without dead ends: 73 [2020-07-21 14:12:12,988 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 14:12:12,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-07-21 14:12:12,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-07-21 14:12:12,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-07-21 14:12:13,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 76 transitions. [2020-07-21 14:12:13,001 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 76 transitions. Word has length 31 [2020-07-21 14:12:13,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:12:13,001 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 76 transitions. [2020-07-21 14:12:13,001 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 14:12:13,001 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 76 transitions. [2020-07-21 14:12:13,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-21 14:12:13,002 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:12:13,002 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 14:12:13,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:13,213 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]=== [2020-07-21 14:12:13,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:12:13,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1470784207, now seen corresponding path program 1 times [2020-07-21 14:12:13,214 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:12:13,214 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1377667097] [2020-07-21 14:12:13,215 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:13,253 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:12:13,253 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:12:13,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 14:12:13,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:12:13,276 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:13,278 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:13,284 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-21 14:12:13,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 14:12:13,290 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 14:12:13,312 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-21 14:12:13,312 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1377667097] [2020-07-21 14:12:13,312 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 14:12:13,312 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2020-07-21 14:12:13,312 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638366357] [2020-07-21 14:12:13,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 14:12:13,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:12:13,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 14:12:13,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 14:12:13,314 INFO L87 Difference]: Start difference. First operand 73 states and 76 transitions. Second operand 5 states. [2020-07-21 14:12:13,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:12:13,382 INFO L93 Difference]: Finished difference Result 74 states and 77 transitions. [2020-07-21 14:12:13,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 14:12:13,382 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-07-21 14:12:13,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:12:13,383 INFO L225 Difference]: With dead ends: 74 [2020-07-21 14:12:13,383 INFO L226 Difference]: Without dead ends: 72 [2020-07-21 14:12:13,384 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 53 SyntacticMatches, 5 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-21 14:12:13,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-07-21 14:12:13,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 71. [2020-07-21 14:12:13,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-07-21 14:12:13,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 74 transitions. [2020-07-21 14:12:13,388 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 74 transitions. Word has length 31 [2020-07-21 14:12:13,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:12:13,389 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 74 transitions. [2020-07-21 14:12:13,389 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 14:12:13,389 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 74 transitions. [2020-07-21 14:12:13,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-07-21 14:12:13,390 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:12:13,390 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 14:12:13,600 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:13,601 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]=== [2020-07-21 14:12:13,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:12:13,602 INFO L82 PathProgramCache]: Analyzing trace with hash -350608983, now seen corresponding path program 1 times [2020-07-21 14:12:13,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:12:13,602 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1545384103] [2020-07-21 14:12:13,603 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:13,641 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:12:13,642 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:12:13,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 14:12:13,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:12:13,663 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:13,664 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 14:12:13,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 14:12:13,677 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:12:13,677 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1545384103] [2020-07-21 14:12:13,678 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:12:13,678 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 14:12:13,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841572616] [2020-07-21 14:12:13,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 14:12:13,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:12:13,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 14:12:13,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 14:12:13,679 INFO L87 Difference]: Start difference. First operand 71 states and 74 transitions. Second operand 5 states. [2020-07-21 14:12:13,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:12:13,759 INFO L93 Difference]: Finished difference Result 72 states and 75 transitions. [2020-07-21 14:12:13,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 14:12:13,760 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-07-21 14:12:13,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:12:13,761 INFO L225 Difference]: With dead ends: 72 [2020-07-21 14:12:13,761 INFO L226 Difference]: Without dead ends: 70 [2020-07-21 14:12:13,761 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-21 14:12:13,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-07-21 14:12:13,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 69. [2020-07-21 14:12:13,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-07-21 14:12:13,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 72 transitions. [2020-07-21 14:12:13,769 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 72 transitions. Word has length 34 [2020-07-21 14:12:13,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:12:13,770 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 72 transitions. [2020-07-21 14:12:13,770 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 14:12:13,770 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 72 transitions. [2020-07-21 14:12:13,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-07-21 14:12:13,775 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:12:13,775 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 14:12:13,989 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:13,990 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]=== [2020-07-21 14:12:13,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:12:13,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1120926823, now seen corresponding path program 1 times [2020-07-21 14:12:13,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:12:13,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [842158178] [2020-07-21 14:12:13,991 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:14,027 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:12:14,027 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:12:14,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 14:12:14,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:12:14,062 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:14,064 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 14:12:14,074 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-21 14:12:14,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 14:12:14,081 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 14:12:14,108 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-21 14:12:14,109 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [842158178] [2020-07-21 14:12:14,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 14:12:14,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2020-07-21 14:12:14,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187912291] [2020-07-21 14:12:14,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 14:12:14,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:12:14,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 14:12:14,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 14:12:14,110 INFO L87 Difference]: Start difference. First operand 69 states and 72 transitions. Second operand 5 states. [2020-07-21 14:12:14,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:12:14,177 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2020-07-21 14:12:14,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 14:12:14,177 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-07-21 14:12:14,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:12:14,178 INFO L225 Difference]: With dead ends: 70 [2020-07-21 14:12:14,178 INFO L226 Difference]: Without dead ends: 68 [2020-07-21 14:12:14,179 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 59 SyntacticMatches, 5 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-21 14:12:14,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-07-21 14:12:14,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 60. [2020-07-21 14:12:14,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-07-21 14:12:14,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2020-07-21 14:12:14,185 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 62 transitions. Word has length 34 [2020-07-21 14:12:14,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:12:14,185 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 62 transitions. [2020-07-21 14:12:14,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 14:12:14,186 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2020-07-21 14:12:14,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-07-21 14:12:14,187 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:12:14,188 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 14:12:14,397 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:14,398 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]=== [2020-07-21 14:12:14,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:12:14,398 INFO L82 PathProgramCache]: Analyzing trace with hash 2016026591, now seen corresponding path program 1 times [2020-07-21 14:12:14,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:12:14,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [47682968] [2020-07-21 14:12:14,399 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:14,436 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:12:14,436 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:12:14,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 14:12:14,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:12:14,452 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 14:12:14,453 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:14,470 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:14,472 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:14,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 14:12:14,481 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:12:14,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [47682968] [2020-07-21 14:12:14,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:12:14,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 14:12:14,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588974200] [2020-07-21 14:12:14,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 14:12:14,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:12:14,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 14:12:14,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 14:12:14,484 INFO L87 Difference]: Start difference. First operand 60 states and 62 transitions. Second operand 6 states. [2020-07-21 14:12:14,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:12:14,635 INFO L93 Difference]: Finished difference Result 71 states and 74 transitions. [2020-07-21 14:12:14,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 14:12:14,635 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-07-21 14:12:14,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:12:14,636 INFO L225 Difference]: With dead ends: 71 [2020-07-21 14:12:14,636 INFO L226 Difference]: Without dead ends: 69 [2020-07-21 14:12:14,637 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-07-21 14:12:14,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-07-21 14:12:14,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 58. [2020-07-21 14:12:14,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-07-21 14:12:14,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2020-07-21 14:12:14,644 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 35 [2020-07-21 14:12:14,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:12:14,645 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2020-07-21 14:12:14,645 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 14:12:14,645 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2020-07-21 14:12:14,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-21 14:12:14,646 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:12:14,646 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 14:12:14,846 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:14,847 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]=== [2020-07-21 14:12:14,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:12:14,847 INFO L82 PathProgramCache]: Analyzing trace with hash -1371399406, now seen corresponding path program 1 times [2020-07-21 14:12:14,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:12:14,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1502968895] [2020-07-21 14:12:14,847 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:14,887 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:12:14,888 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:12:14,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 14:12:14,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:12:14,912 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 14:12:14,912 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:14,926 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:14,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 14:12:14,939 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:12:14,939 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1502968895] [2020-07-21 14:12:14,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:12:14,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 14:12:14,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954204338] [2020-07-21 14:12:14,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 14:12:14,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:12:14,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 14:12:14,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 14:12:14,940 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand 5 states. [2020-07-21 14:12:15,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:12:15,056 INFO L93 Difference]: Finished difference Result 93 states and 97 transitions. [2020-07-21 14:12:15,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 14:12:15,056 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2020-07-21 14:12:15,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:12:15,057 INFO L225 Difference]: With dead ends: 93 [2020-07-21 14:12:15,057 INFO L226 Difference]: Without dead ends: 91 [2020-07-21 14:12:15,058 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 14:12:15,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-07-21 14:12:15,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 61. [2020-07-21 14:12:15,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-07-21 14:12:15,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 63 transitions. [2020-07-21 14:12:15,062 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 63 transitions. Word has length 38 [2020-07-21 14:12:15,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:12:15,062 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 63 transitions. [2020-07-21 14:12:15,062 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 14:12:15,062 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2020-07-21 14:12:15,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-07-21 14:12:15,063 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:12:15,063 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 14:12:15,263 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:15,264 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]=== [2020-07-21 14:12:15,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:12:15,265 INFO L82 PathProgramCache]: Analyzing trace with hash 436294569, now seen corresponding path program 1 times [2020-07-21 14:12:15,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:12:15,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [552391096] [2020-07-21 14:12:15,266 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:15,301 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:12:15,301 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:12:15,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 14:12:15,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:12:15,334 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 14:12:15,335 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:15,340 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:15,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 14:12:15,346 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:12:15,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [552391096] [2020-07-21 14:12:15,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:12:15,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 14:12:15,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500628478] [2020-07-21 14:12:15,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 14:12:15,348 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:12:15,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 14:12:15,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 14:12:15,352 INFO L87 Difference]: Start difference. First operand 61 states and 63 transitions. Second operand 5 states. [2020-07-21 14:12:15,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:12:15,435 INFO L93 Difference]: Finished difference Result 61 states and 63 transitions. [2020-07-21 14:12:15,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 14:12:15,436 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2020-07-21 14:12:15,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:12:15,436 INFO L225 Difference]: With dead ends: 61 [2020-07-21 14:12:15,437 INFO L226 Difference]: Without dead ends: 59 [2020-07-21 14:12:15,437 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 14:12:15,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-07-21 14:12:15,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-07-21 14:12:15,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-07-21 14:12:15,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2020-07-21 14:12:15,441 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 39 [2020-07-21 14:12:15,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:12:15,441 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2020-07-21 14:12:15,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 14:12:15,442 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2020-07-21 14:12:15,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-07-21 14:12:15,442 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:12:15,442 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 14:12:15,651 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:15,652 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 14:12:15,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:12:15,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1627614740, now seen corresponding path program 1 times [2020-07-21 14:12:15,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:12:15,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1112458807] [2020-07-21 14:12:15,653 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:15,697 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:12:15,698 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:12:15,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 14:12:15,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:12:15,716 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:15,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 14:12:15,726 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:12:15,726 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1112458807] [2020-07-21 14:12:15,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:12:15,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-21 14:12:15,726 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670821877] [2020-07-21 14:12:15,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 14:12:15,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:12:15,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 14:12:15,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-21 14:12:15,728 INFO L87 Difference]: Start difference. First operand 59 states and 61 transitions. Second operand 4 states. [2020-07-21 14:12:15,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:12:15,759 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2020-07-21 14:12:15,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 14:12:15,760 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2020-07-21 14:12:15,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:12:15,760 INFO L225 Difference]: With dead ends: 70 [2020-07-21 14:12:15,761 INFO L226 Difference]: Without dead ends: 68 [2020-07-21 14:12:15,761 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 14:12:15,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-07-21 14:12:15,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 57. [2020-07-21 14:12:15,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-07-21 14:12:15,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 59 transitions. [2020-07-21 14:12:15,765 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 59 transitions. Word has length 41 [2020-07-21 14:12:15,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:12:15,766 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 59 transitions. [2020-07-21 14:12:15,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 14:12:15,766 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2020-07-21 14:12:15,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-07-21 14:12:15,766 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:12:15,767 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 14:12:15,967 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:15,967 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 14:12:15,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:12:15,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1083553822, now seen corresponding path program 1 times [2020-07-21 14:12:15,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:12:15,968 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1130049020] [2020-07-21 14:12:15,968 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:16,017 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:12:16,017 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:12:16,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 14:12:16,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:12:16,027 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:16,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 14:12:16,041 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:12:16,041 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1130049020] [2020-07-21 14:12:16,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:12:16,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 14:12:16,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685724345] [2020-07-21 14:12:16,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 14:12:16,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:12:16,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 14:12:16,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 14:12:16,043 INFO L87 Difference]: Start difference. First operand 57 states and 59 transitions. Second operand 5 states. [2020-07-21 14:12:16,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:12:16,074 INFO L93 Difference]: Finished difference Result 66 states and 69 transitions. [2020-07-21 14:12:16,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 14:12:16,074 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2020-07-21 14:12:16,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:12:16,075 INFO L225 Difference]: With dead ends: 66 [2020-07-21 14:12:16,075 INFO L226 Difference]: Without dead ends: 64 [2020-07-21 14:12:16,075 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-07-21 14:12:16,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-07-21 14:12:16,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 55. [2020-07-21 14:12:16,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-07-21 14:12:16,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2020-07-21 14:12:16,079 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 42 [2020-07-21 14:12:16,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:12:16,080 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2020-07-21 14:12:16,080 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 14:12:16,080 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2020-07-21 14:12:16,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-07-21 14:12:16,081 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:12:16,081 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 14:12:16,289 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:16,290 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 14:12:16,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:12:16,291 INFO L82 PathProgramCache]: Analyzing trace with hash -769566670, now seen corresponding path program 1 times [2020-07-21 14:12:16,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:12:16,291 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1842303799] [2020-07-21 14:12:16,292 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:16,334 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:12:16,334 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:12:16,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 14:12:16,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:12:16,356 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 14:12:16,357 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:16,367 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:16,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 14:12:16,376 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:12:16,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1842303799] [2020-07-21 14:12:16,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:12:16,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 14:12:16,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652782336] [2020-07-21 14:12:16,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 14:12:16,378 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:12:16,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 14:12:16,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 14:12:16,379 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand 5 states. [2020-07-21 14:12:16,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:12:16,516 INFO L93 Difference]: Finished difference Result 76 states and 80 transitions. [2020-07-21 14:12:16,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 14:12:16,516 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2020-07-21 14:12:16,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:12:16,517 INFO L225 Difference]: With dead ends: 76 [2020-07-21 14:12:16,517 INFO L226 Difference]: Without dead ends: 74 [2020-07-21 14:12:16,518 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 14:12:16,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-07-21 14:12:16,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 53. [2020-07-21 14:12:16,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-07-21 14:12:16,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2020-07-21 14:12:16,525 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 55 transitions. Word has length 43 [2020-07-21 14:12:16,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:12:16,525 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 55 transitions. [2020-07-21 14:12:16,525 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 14:12:16,526 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2020-07-21 14:12:16,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-07-21 14:12:16,526 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:12:16,526 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 14:12:16,727 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:16,727 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 14:12:16,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:12:16,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1913240228, now seen corresponding path program 1 times [2020-07-21 14:12:16,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:12:16,728 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [683327420] [2020-07-21 14:12:16,728 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:16,780 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:12:16,780 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:12:16,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 14:12:16,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:12:16,793 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 14:12:16,794 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:16,797 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:16,798 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:16,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 14:12:16,804 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 14:12:16,805 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [683327420] [2020-07-21 14:12:16,805 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 14:12:16,805 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 14:12:16,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197288169] [2020-07-21 14:12:16,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 14:12:16,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:12:16,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 14:12:16,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 14:12:16,806 INFO L87 Difference]: Start difference. First operand 53 states and 55 transitions. Second operand 5 states. [2020-07-21 14:12:16,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:12:16,911 INFO L93 Difference]: Finished difference Result 65 states and 68 transitions. [2020-07-21 14:12:16,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 14:12:16,911 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2020-07-21 14:12:16,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:12:16,912 INFO L225 Difference]: With dead ends: 65 [2020-07-21 14:12:16,912 INFO L226 Difference]: Without dead ends: 63 [2020-07-21 14:12:16,913 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 14:12:16,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-07-21 14:12:16,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 51. [2020-07-21 14:12:16,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-07-21 14:12:16,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 53 transitions. [2020-07-21 14:12:16,917 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 53 transitions. Word has length 44 [2020-07-21 14:12:16,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:12:16,917 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 53 transitions. [2020-07-21 14:12:16,917 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 14:12:16,917 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2020-07-21 14:12:16,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-07-21 14:12:16,918 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 14:12:16,918 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 14:12:17,126 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:17,127 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 14:12:17,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 14:12:17,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1562566919, now seen corresponding path program 1 times [2020-07-21 14:12:17,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 14:12:17,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1293061524] [2020-07-21 14:12:17,128 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:17,168 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 14:12:17,168 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 14:12:17,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 14:12:17,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 14:12:17,209 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 14:12:17,218 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 14:12:17,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 14:12:17,222 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 14:12:17,231 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 14:12:17,251 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 14:12:17,252 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1293061524] [2020-07-21 14:12:17,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 14:12:17,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2020-07-21 14:12:17,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204712100] [2020-07-21 14:12:17,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 14:12:17,253 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 14:12:17,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 14:12:17,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 14:12:17,253 INFO L87 Difference]: Start difference. First operand 51 states and 53 transitions. Second operand 5 states. [2020-07-21 14:12:17,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 14:12:17,324 INFO L93 Difference]: Finished difference Result 51 states and 53 transitions. [2020-07-21 14:12:17,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 14:12:17,325 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2020-07-21 14:12:17,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 14:12:17,326 INFO L225 Difference]: With dead ends: 51 [2020-07-21 14:12:17,326 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 14:12:17,327 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 77 SyntacticMatches, 7 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-21 14:12:17,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 14:12:17,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 14:12:17,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 14:12:17,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 14:12:17,327 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2020-07-21 14:12:17,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 14:12:17,328 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 14:12:17,328 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 14:12:17,328 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 14:12:17,328 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 14:12:17,529 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 14:12:17,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 14:12:17,813 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 93 [2020-07-21 14:12:18,340 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 59 [2020-07-21 14:12:18,521 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 26 [2020-07-21 14:12:18,822 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 55 [2020-07-21 14:12:18,825 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 14:12:18,826 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-21 14:12:18,826 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 14:12:18,826 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 14:12:18,826 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-21 14:12:18,826 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 14:12:18,827 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 14:12:18,827 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-07-21 14:12:18,827 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-07-21 14:12:18,827 INFO L268 CegarLoopResult]: For program point L5-2(lines 4 6) no Hoare annotation was computed. [2020-07-21 14:12:18,827 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-07-21 14:12:18,827 INFO L268 CegarLoopResult]: For program point L192(lines 192 352) no Hoare annotation was computed. [2020-07-21 14:12:18,827 INFO L268 CegarLoopResult]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 123) no Hoare annotation was computed. [2020-07-21 14:12:18,828 INFO L268 CegarLoopResult]: For program point L382(lines 382 391) no Hoare annotation was computed. [2020-07-21 14:12:18,828 INFO L268 CegarLoopResult]: For program point L93(lines 93 410) no Hoare annotation was computed. [2020-07-21 14:12:18,828 INFO L268 CegarLoopResult]: For program point L27(lines 27 435) no Hoare annotation was computed. [2020-07-21 14:12:18,828 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 437) no Hoare annotation was computed. [2020-07-21 14:12:18,828 INFO L268 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-07-21 14:12:18,828 INFO L264 CegarLoopResult]: At program point L399(lines 129 400) the Hoare annotation is: (let ((.cse6 (+ main_~main__cp~0 1))) (let ((.cse0 (<= 1 main_~__VERIFIER_assert__cond~1)) (.cse1 (<= 0 main_~main__scheme~0)) (.cse2 (<= .cse6 main_~main__urilen~0)) (.cse3 (= 1 main_~__VERIFIER_assert__cond~3)) (.cse4 (not (= 0 main_~main__scheme~0))) (.cse5 (<= 1 main_~main__cp~0)) (.cse7 (<= 1 main_~__VERIFIER_assert__cond~2)) (.cse8 (<= 1 main_~__VERIFIER_assert__cond~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (= .cse6 main_~main__urilen~0) .cse7 .cse8) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse7 .cse8 (= 1 main_~__VERIFIER_assert__cond~1))))) [2020-07-21 14:12:18,828 INFO L268 CegarLoopResult]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 253) no Hoare annotation was computed. [2020-07-21 14:12:18,829 INFO L268 CegarLoopResult]: For program point L102(lines 102 409) no Hoare annotation was computed. [2020-07-21 14:12:18,829 INFO L268 CegarLoopResult]: For program point L69(lines 69 414) no Hoare annotation was computed. [2020-07-21 14:12:18,829 INFO L264 CegarLoopResult]: At program point L325(lines 260 326) the Hoare annotation is: (and (= main_~__VERIFIER_assert__cond~10 1) (<= 0 main_~main__c~0) (< main_~main__cp~0 main_~main__urilen~0) (not (= (+ main_~main__cp~0 1) main_~main__urilen~0)) (let ((.cse0 (<= 0 main_~main__scheme~0)) (.cse1 (= 1 main_~__VERIFIER_assert__cond~9)) (.cse2 (<= 1 main_~__VERIFIER_assert__cond~4)) (.cse3 (= 1 main_~__VERIFIER_assert__cond~3)) (.cse4 (<= 1 main_~__VERIFIER_assert__cond~0)) (.cse5 (= 1 main_~__VERIFIER_assert__cond~1)) (.cse6 (<= 1 main_~__VERIFIER_assert__cond~5)) (.cse7 (<= 1 main_~__VERIFIER_assert__cond~6)) (.cse8 (<= 2 main_~main__cp~0)) (.cse9 (<= 1 main_~__VERIFIER_assert__cond~8)) (.cse10 (not (= 0 main_~main__scheme~0))) (.cse11 (<= 1 main_~__VERIFIER_assert__cond~7)) (.cse12 (<= 1 main_~__VERIFIER_assert__cond~2)) (.cse13 (<= 1 main_~__VERIFIER_assert__cond~9))) (or (and .cse0 .cse1 (< (+ main_~main__c~0 1) main_~main__tokenlen~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13) (and .cse0 .cse1 .cse2 .cse3 (<= 1 main_~__VERIFIER_assert__cond~12) .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13))) (= main_~__VERIFIER_assert__cond~11 1)) [2020-07-21 14:12:18,829 INFO L268 CegarLoopResult]: For program point L292(lines 292 316) no Hoare annotation was computed. [2020-07-21 14:12:18,829 INFO L268 CegarLoopResult]: For program point L160(lines 160 357) no Hoare annotation was computed. [2020-07-21 14:12:18,829 INFO L268 CegarLoopResult]: For program point L61(lines 61 420) no Hoare annotation was computed. [2020-07-21 14:12:18,829 INFO L268 CegarLoopResult]: For program point L251(lines 251 327) no Hoare annotation was computed. [2020-07-21 14:12:18,829 INFO L268 CegarLoopResult]: For program point L185(lines 185 353) no Hoare annotation was computed. [2020-07-21 14:12:18,830 INFO L268 CegarLoopResult]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 175) no Hoare annotation was computed. [2020-07-21 14:12:18,830 INFO L264 CegarLoopResult]: At program point L408(lines 102 409) the Hoare annotation is: (<= 1 main_~__VERIFIER_assert__cond~0) [2020-07-21 14:12:18,830 INFO L268 CegarLoopResult]: For program point L210(lines 210 344) no Hoare annotation was computed. [2020-07-21 14:12:18,830 INFO L268 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-07-21 14:12:18,830 INFO L268 CegarLoopResult]: For program point L45(lines 45 432) no Hoare annotation was computed. [2020-07-21 14:12:18,830 INFO L268 CegarLoopResult]: For program point L268(lines 268 320) no Hoare annotation was computed. [2020-07-21 14:12:18,830 INFO L268 CegarLoopResult]: For program point mainErr14ASSERT_VIOLATIONERROR_FUNCTION(line 294) no Hoare annotation was computed. [2020-07-21 14:12:18,830 INFO L268 CegarLoopResult]: For program point L202(lines 202 351) no Hoare annotation was computed. [2020-07-21 14:12:18,831 INFO L268 CegarLoopResult]: For program point L260(lines 260 326) no Hoare annotation was computed. [2020-07-21 14:12:18,831 INFO L268 CegarLoopResult]: For program point L384(line 384) no Hoare annotation was computed. [2020-07-21 14:12:18,831 INFO L268 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-07-21 14:12:18,831 INFO L268 CegarLoopResult]: For program point L153(lines 153 358) no Hoare annotation was computed. [2020-07-21 14:12:18,831 INFO L268 CegarLoopResult]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 155) no Hoare annotation was computed. [2020-07-21 14:12:18,831 INFO L268 CegarLoopResult]: For program point L21(lines 21 436) no Hoare annotation was computed. [2020-07-21 14:12:18,831 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 11 437) no Hoare annotation was computed. [2020-07-21 14:12:18,831 INFO L268 CegarLoopResult]: For program point mainErr13ASSERT_VIOLATIONERROR_FUNCTION(line 282) no Hoare annotation was computed. [2020-07-21 14:12:18,831 INFO L268 CegarLoopResult]: For program point L294(line 294) no Hoare annotation was computed. [2020-07-21 14:12:18,832 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 83) no Hoare annotation was computed. [2020-07-21 14:12:18,832 INFO L268 CegarLoopResult]: For program point L63(lines 63 415) no Hoare annotation was computed. [2020-07-21 14:12:18,832 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 11 437) the Hoare annotation is: true [2020-07-21 14:12:18,832 INFO L268 CegarLoopResult]: For program point L253(line 253) no Hoare annotation was computed. [2020-07-21 14:12:18,832 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 14:12:18,832 INFO L268 CegarLoopResult]: For program point L121(lines 121 401) no Hoare annotation was computed. [2020-07-21 14:12:18,832 INFO L268 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-07-21 14:12:18,832 INFO L268 CegarLoopResult]: For program point L270(line 270) no Hoare annotation was computed. [2020-07-21 14:12:18,832 INFO L268 CegarLoopResult]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 212) no Hoare annotation was computed. [2020-07-21 14:12:18,833 INFO L268 CegarLoopResult]: For program point L39(lines 39 433) no Hoare annotation was computed. [2020-07-21 14:12:18,833 INFO L268 CegarLoopResult]: For program point mainErr16ASSERT_VIOLATIONERROR_FUNCTION(line 372) no Hoare annotation was computed. [2020-07-21 14:12:18,833 INFO L268 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-07-21 14:12:18,833 INFO L268 CegarLoopResult]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 187) no Hoare annotation was computed. [2020-07-21 14:12:18,833 INFO L268 CegarLoopResult]: For program point L370(lines 370 393) no Hoare annotation was computed. [2020-07-21 14:12:18,833 INFO L268 CegarLoopResult]: For program point L81(lines 81 412) no Hoare annotation was computed. [2020-07-21 14:12:18,833 INFO L268 CegarLoopResult]: For program point L304(lines 304 314) no Hoare annotation was computed. [2020-07-21 14:12:18,833 INFO L268 CegarLoopResult]: For program point mainErr15ASSERT_VIOLATIONERROR_FUNCTION(line 306) no Hoare annotation was computed. [2020-07-21 14:12:18,833 INFO L268 CegarLoopResult]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 111) no Hoare annotation was computed. [2020-07-21 14:12:18,834 INFO L268 CegarLoopResult]: For program point L222(lines 222 342) no Hoare annotation was computed. [2020-07-21 14:12:18,834 INFO L268 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-07-21 14:12:18,834 INFO L268 CegarLoopResult]: For program point L57(lines 57 430) no Hoare annotation was computed. [2020-07-21 14:12:18,834 INFO L264 CegarLoopResult]: At program point L313(lines 228 342) the Hoare annotation is: (let ((.cse2 (+ main_~main__cp~0 1))) (let ((.cse11 (<= .cse2 main_~main__urilen~0)) (.cse10 (<= 0 main_~main__c~0)) (.cse0 (<= 0 main_~main__scheme~0)) (.cse1 (= 1 main_~__VERIFIER_assert__cond~9)) (.cse3 (<= 1 main_~__VERIFIER_assert__cond~4)) (.cse4 (= 1 main_~__VERIFIER_assert__cond~3)) (.cse5 (<= 1 main_~__VERIFIER_assert__cond~0)) (.cse6 (= 1 main_~__VERIFIER_assert__cond~1)) (.cse7 (<= 1 main_~__VERIFIER_assert__cond~5)) (.cse8 (<= 1 main_~__VERIFIER_assert__cond~6)) (.cse9 (<= 2 main_~main__cp~0)) (.cse12 (<= 1 main_~__VERIFIER_assert__cond~8)) (.cse13 (not (= 0 main_~main__scheme~0))) (.cse14 (<= 1 main_~main__cp~0)) (.cse15 (<= 1 main_~__VERIFIER_assert__cond~7)) (.cse16 (<= 1 main_~__VERIFIER_assert__cond~2))) (or (and .cse0 .cse1 (not (= .cse2 main_~main__urilen~0)) .cse3 .cse4 (= 1 main_~__VERIFIER_assert__cond~8) .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16) (and (<= 1 main_~__VERIFIER_assert__cond~10) .cse11 .cse10 (let ((.cse17 (= main_~__VERIFIER_assert__cond~11 1)) (.cse18 (<= 1 main_~__VERIFIER_assert__cond~9))) (or (and .cse0 .cse1 (< (+ main_~main__c~0 1) main_~main__tokenlen~0) .cse3 .cse4 .cse5 .cse17 .cse6 .cse7 .cse8 .cse9 .cse12 .cse13 .cse14 .cse15 .cse18 .cse16) (and .cse0 .cse1 .cse3 .cse4 (<= 1 main_~__VERIFIER_assert__cond~12) .cse5 .cse17 .cse6 .cse7 .cse8 .cse9 .cse12 .cse13 .cse14 .cse15 .cse18 .cse16))))))) [2020-07-21 14:12:18,834 INFO L268 CegarLoopResult]: For program point L280(lines 280 318) no Hoare annotation was computed. [2020-07-21 14:12:18,834 INFO L268 CegarLoopResult]: For program point L239(lines 239 329) no Hoare annotation was computed. [2020-07-21 14:12:18,835 INFO L268 CegarLoopResult]: For program point L173(lines 173 355) no Hoare annotation was computed. [2020-07-21 14:12:18,835 INFO L268 CegarLoopResult]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 241) no Hoare annotation was computed. [2020-07-21 14:12:18,835 INFO L268 CegarLoopResult]: For program point L33(lines 33 434) no Hoare annotation was computed. [2020-07-21 14:12:18,835 INFO L268 CegarLoopResult]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 95) no Hoare annotation was computed. [2020-07-21 14:12:18,835 INFO L268 CegarLoopResult]: For program point L372(line 372) no Hoare annotation was computed. [2020-07-21 14:12:18,835 INFO L268 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-07-21 14:12:18,835 INFO L268 CegarLoopResult]: For program point L306(line 306) no Hoare annotation was computed. [2020-07-21 14:12:18,835 INFO L268 CegarLoopResult]: For program point L141(lines 141 360) no Hoare annotation was computed. [2020-07-21 14:12:18,835 INFO L268 CegarLoopResult]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 224) no Hoare annotation was computed. [2020-07-21 14:12:18,836 INFO L268 CegarLoopResult]: For program point L232(lines 232 336) no Hoare annotation was computed. [2020-07-21 14:12:18,836 INFO L268 CegarLoopResult]: For program point mainErr17ASSERT_VIOLATIONERROR_FUNCTION(line 384) no Hoare annotation was computed. [2020-07-21 14:12:18,836 INFO L268 CegarLoopResult]: For program point L133(lines 133 395) no Hoare annotation was computed. [2020-07-21 14:12:18,836 INFO L268 CegarLoopResult]: For program point L224(line 224) no Hoare annotation was computed. [2020-07-21 14:12:18,836 INFO L268 CegarLoopResult]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 143) no Hoare annotation was computed. [2020-07-21 14:12:18,836 INFO L268 CegarLoopResult]: For program point L59(lines 59 425) no Hoare annotation was computed. [2020-07-21 14:12:18,836 INFO L268 CegarLoopResult]: For program point L282(line 282) no Hoare annotation was computed. [2020-07-21 14:12:18,836 INFO L268 CegarLoopResult]: For program point L51(lines 51 431) no Hoare annotation was computed. [2020-07-21 14:12:18,836 INFO L268 CegarLoopResult]: For program point L241(line 241) no Hoare annotation was computed. [2020-07-21 14:12:18,837 INFO L268 CegarLoopResult]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 270) no Hoare annotation was computed. [2020-07-21 14:12:18,837 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 14:12:18,837 INFO L268 CegarLoopResult]: For program point L109(lines 109 403) no Hoare annotation was computed. [2020-07-21 14:12:18,837 INFO L264 CegarLoopResult]: At program point L390(lines 127 401) the Hoare annotation is: (and (<= 0 main_~main__scheme~0) (< main_~main__cp~0 main_~main__urilen~0) (= 1 main_~__VERIFIER_assert__cond~3) (not (= 0 main_~main__scheme~0)) (<= 1 main_~main__cp~0) (<= 1 main_~__VERIFIER_assert__cond~2) (<= 1 main_~__VERIFIER_assert__cond~0) (= 1 main_~__VERIFIER_assert__cond~1)) [2020-07-21 14:12:18,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 02:12:18 BoogieIcfgContainer [2020-07-21 14:12:18,861 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 14:12:18,862 INFO L168 Benchmark]: Toolchain (without parser) took 12014.60 ms. Allocated memory was 137.4 MB in the beginning and 300.9 MB in the end (delta: 163.6 MB). Free memory was 102.0 MB in the beginning and 171.9 MB in the end (delta: -69.9 MB). Peak memory consumption was 157.3 MB. Max. memory is 7.1 GB. [2020-07-21 14:12:18,863 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 137.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 14:12:18,863 INFO L168 Benchmark]: CACSL2BoogieTranslator took 329.84 ms. Allocated memory is still 137.4 MB. Free memory was 101.6 MB in the beginning and 88.7 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2020-07-21 14:12:18,864 INFO L168 Benchmark]: Boogie Preprocessor took 119.76 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 88.7 MB in the beginning and 178.1 MB in the end (delta: -89.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2020-07-21 14:12:18,865 INFO L168 Benchmark]: RCFGBuilder took 661.63 ms. Allocated memory is still 200.8 MB. Free memory was 178.1 MB in the beginning and 150.1 MB in the end (delta: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. [2020-07-21 14:12:18,865 INFO L168 Benchmark]: TraceAbstraction took 10897.93 ms. Allocated memory was 200.8 MB in the beginning and 300.9 MB in the end (delta: 100.1 MB). Free memory was 150.1 MB in the beginning and 171.9 MB in the end (delta: -21.8 MB). Peak memory consumption was 141.9 MB. Max. memory is 7.1 GB. [2020-07-21 14:12:18,868 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 137.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 329.84 ms. Allocated memory is still 137.4 MB. Free memory was 101.6 MB in the beginning and 88.7 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.76 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 88.7 MB in the beginning and 178.1 MB in the end (delta: -89.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 661.63 ms. Allocated memory is still 200.8 MB. Free memory was 178.1 MB in the beginning and 150.1 MB in the end (delta: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10897.93 ms. Allocated memory was 200.8 MB in the beginning and 300.9 MB in the end (delta: 100.1 MB). Free memory was 150.1 MB in the beginning and 171.9 MB in the end (delta: -21.8 MB). Peak memory consumption was 141.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 83]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 306]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 372]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 187]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 212]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 282]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 224]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 241]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 294]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 270]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 143]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 253]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 384]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 111]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 175]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 155]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 123]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 95]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: ((((((0 <= main__scheme && main__cp < main__urilen) && 1 == __VERIFIER_assert__cond) && !(0 == main__scheme)) && 1 <= main__cp) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 == __VERIFIER_assert__cond - InvariantResult [Line: 102]: Loop Invariant Derived loop invariant: 1 <= __VERIFIER_assert__cond - InvariantResult [Line: 228]: Loop Invariant Derived loop invariant: (((((((((((((((((0 <= main__scheme && 1 == __VERIFIER_assert__cond) && !(main__cp + 1 == main__urilen)) && 1 <= __VERIFIER_assert__cond) && 1 == __VERIFIER_assert__cond) && 1 == __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 == __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 2 <= main__cp) && 0 <= main__c) && main__cp + 1 <= main__urilen) && 1 <= __VERIFIER_assert__cond) && !(0 == main__scheme)) && 1 <= main__cp) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) || (((1 <= __VERIFIER_assert__cond && main__cp + 1 <= main__urilen) && 0 <= main__c) && (((((((((((((((((0 <= main__scheme && 1 == __VERIFIER_assert__cond) && main__c + 1 < main__tokenlen) && 1 <= __VERIFIER_assert__cond) && 1 == __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && __VERIFIER_assert__cond == 1) && 1 == __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 2 <= main__cp) && 1 <= __VERIFIER_assert__cond) && !(0 == main__scheme)) && 1 <= main__cp) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) || ((((((((((((((((0 <= main__scheme && 1 == __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 == __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && __VERIFIER_assert__cond == 1) && 1 == __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 2 <= main__cp) && 1 <= __VERIFIER_assert__cond) && !(0 == main__scheme)) && 1 <= main__cp) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond))) - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: ((((((((1 <= __VERIFIER_assert__cond && 0 <= main__scheme) && main__cp + 1 <= main__urilen) && 1 == __VERIFIER_assert__cond) && !(0 == main__scheme)) && 1 <= main__cp) && main__cp + 1 == main__urilen) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) || ((((((((1 <= __VERIFIER_assert__cond && 0 <= main__scheme) && main__cp + 1 <= main__urilen) && 1 == __VERIFIER_assert__cond) && !(0 == main__scheme)) && 1 <= main__cp) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 == __VERIFIER_assert__cond) - InvariantResult [Line: 260]: Loop Invariant Derived loop invariant: ((((__VERIFIER_assert__cond == 1 && 0 <= main__c) && main__cp < main__urilen) && !(main__cp + 1 == main__urilen)) && (((((((((((((((0 <= main__scheme && 1 == __VERIFIER_assert__cond) && main__c + 1 < main__tokenlen) && 1 <= __VERIFIER_assert__cond) && 1 == __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 == __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 2 <= main__cp) && 1 <= __VERIFIER_assert__cond) && !(0 == main__scheme)) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) || ((((((((((((((0 <= main__scheme && 1 == __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 == __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 == __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 2 <= main__cp) && 1 <= __VERIFIER_assert__cond) && !(0 == main__scheme)) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond))) && __VERIFIER_assert__cond == 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 91 locations, 18 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.5s, OverallIterations: 23, TraceHistogramMax: 2, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1350 SDtfs, 1984 SDslu, 1577 SDs, 0 SdLazy, 1023 SolverSat, 108 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 893 GetRequests, 768 SyntacticMatches, 23 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 23 MinimizatonAttempts, 361 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 13 NumberOfFragments, 397 HoareAnnotationTreeSize, 9 FomulaSimplifications, 884283 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 9 FomulaSimplificationsInter, 39931 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 735 NumberOfCodeBlocks, 735 NumberOfCodeBlocksAsserted, 46 NumberOfCheckSat, 847 ConstructedInterpolants, 0 QuantifiedInterpolants, 73436 SizeOfPredicates, 121 NumberOfNonLiveVariables, 2487 ConjunctsInSsa, 173 ConjunctsInUnsatCore, 27 InterpolantComputations, 19 PerfectInterpolantSequences, 6/20 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...