/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-cav19/array_init_pair_symmetr2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-09 23:17:29,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-09 23:17:29,962 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-09 23:17:30,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-09 23:17:30,051 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-09 23:17:30,052 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-09 23:17:30,052 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-09 23:17:30,054 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf [2022-01-09 23:17:30,079 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-09 23:17:30,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-09 23:17:30,080 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-09 23:17:30,080 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-09 23:17:30,080 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-09 23:17:30,080 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-09 23:17:30,080 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-09 23:17:30,080 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-09 23:17:30,081 INFO L138 SettingsManager]: * Use SBE=true [2022-01-09 23:17:30,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-09 23:17:30,081 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-09 23:17:30,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-09 23:17:30,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-09 23:17:30,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-09 23:17:30,081 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-09 23:17:30,081 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-09 23:17:30,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-09 23:17:30,081 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-09 23:17:30,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-09 23:17:30,082 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-09 23:17:30,082 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-09 23:17:30,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-09 23:17:30,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-09 23:17:30,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-09 23:17:30,082 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-09 23:17:30,082 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-09 23:17:30,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-09 23:17:30,082 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-09 23:17:30,082 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-09 23:17:30,083 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-09 23:17:30,083 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-09 23:17:30,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-09 23:17:30,287 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-09 23:17:30,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-09 23:17:30,289 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-09 23:17:30,290 INFO L275 PluginConnector]: CDTParser initialized [2022-01-09 23:17:30,291 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-cav19/array_init_pair_symmetr2.c [2022-01-09 23:17:30,329 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7be214434/cc45ad4f3b334aa1a055391668323932/FLAG3b811d490 [2022-01-09 23:17:30,703 INFO L306 CDTParser]: Found 1 translation units. [2022-01-09 23:17:30,703 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-cav19/array_init_pair_symmetr2.c [2022-01-09 23:17:30,707 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7be214434/cc45ad4f3b334aa1a055391668323932/FLAG3b811d490 [2022-01-09 23:17:31,146 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7be214434/cc45ad4f3b334aa1a055391668323932 [2022-01-09 23:17:31,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-09 23:17:31,148 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-09 23:17:31,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-09 23:17:31,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-09 23:17:31,153 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-09 23:17:31,153 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 11:17:31" (1/1) ... [2022-01-09 23:17:31,157 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@285a226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:17:31, skipping insertion in model container [2022-01-09 23:17:31,157 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 11:17:31" (1/1) ... [2022-01-09 23:17:31,162 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-09 23:17:31,169 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-09 23:17:31,335 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-cav19/array_init_pair_symmetr2.c[415,428] [2022-01-09 23:17:31,362 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-09 23:17:31,367 INFO L203 MainTranslator]: Completed pre-run [2022-01-09 23:17:31,374 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-cav19/array_init_pair_symmetr2.c[415,428] [2022-01-09 23:17:31,387 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-09 23:17:31,397 INFO L208 MainTranslator]: Completed translation [2022-01-09 23:17:31,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:17:31 WrapperNode [2022-01-09 23:17:31,398 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-09 23:17:31,399 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-09 23:17:31,400 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-09 23:17:31,400 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-09 23:17:31,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:17:31" (1/1) ... [2022-01-09 23:17:31,415 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:17:31" (1/1) ... [2022-01-09 23:17:31,431 INFO L137 Inliner]: procedures = 15, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 77 [2022-01-09 23:17:31,432 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-09 23:17:31,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-09 23:17:31,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-09 23:17:31,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-09 23:17:31,438 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:17:31" (1/1) ... [2022-01-09 23:17:31,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:17:31" (1/1) ... [2022-01-09 23:17:31,441 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:17:31" (1/1) ... [2022-01-09 23:17:31,442 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:17:31" (1/1) ... [2022-01-09 23:17:31,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:17:31" (1/1) ... [2022-01-09 23:17:31,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:17:31" (1/1) ... [2022-01-09 23:17:31,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:17:31" (1/1) ... [2022-01-09 23:17:31,455 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-09 23:17:31,456 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-09 23:17:31,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-09 23:17:31,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-09 23:17:31,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:17:31" (1/1) ... [2022-01-09 23:17:31,465 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-09 23:17:31,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-09 23:17:31,492 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-09 23:17:31,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-09 23:17:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-09 23:17:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-01-09 23:17:31,528 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-01-09 23:17:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-09 23:17:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-09 23:17:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-09 23:17:31,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-09 23:17:31,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-09 23:17:31,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-09 23:17:31,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-09 23:17:31,575 INFO L234 CfgBuilder]: Building ICFG [2022-01-09 23:17:31,576 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-09 23:17:31,749 INFO L275 CfgBuilder]: Performing block encoding [2022-01-09 23:17:31,753 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-09 23:17:31,754 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-01-09 23:17:31,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 11:17:31 BoogieIcfgContainer [2022-01-09 23:17:31,755 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-09 23:17:31,769 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-09 23:17:31,769 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-09 23:17:31,780 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-09 23:17:31,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 11:17:31" (1/3) ... [2022-01-09 23:17:31,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ed42f8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 11:17:31, skipping insertion in model container [2022-01-09 23:17:31,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:17:31" (2/3) ... [2022-01-09 23:17:31,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ed42f8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 11:17:31, skipping insertion in model container [2022-01-09 23:17:31,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 11:17:31" (3/3) ... [2022-01-09 23:17:31,782 INFO L111 eAbstractionObserver]: Analyzing ICFG array_init_pair_symmetr2.c [2022-01-09 23:17:31,786 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-09 23:17:31,786 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-09 23:17:31,827 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-09 23:17:31,836 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-09 23:17:31,836 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-09 23:17:31,847 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 20 states have (on average 1.45) internal successors, (29), 21 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-09 23:17:31,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-09 23:17:31,850 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:17:31,851 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-09 23:17:31,851 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:17:31,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:17:31,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1607472667, now seen corresponding path program 1 times [2022-01-09 23:17:31,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:17:31,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286245258] [2022-01-09 23:17:31,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:17:31,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:17:31,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:32,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-09 23:17:32,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:17:32,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286245258] [2022-01-09 23:17:32,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286245258] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-09 23:17:32,012 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-09 23:17:32,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-09 23:17:32,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302760492] [2022-01-09 23:17:32,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-09 23:17:32,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-09 23:17:32,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:17:32,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-09 23:17:32,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-09 23:17:32,039 INFO L87 Difference]: Start difference. First operand has 26 states, 20 states have (on average 1.45) internal successors, (29), 21 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:17:32,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:17:32,054 INFO L93 Difference]: Finished difference Result 50 states and 71 transitions. [2022-01-09 23:17:32,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-09 23:17:32,057 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-01-09 23:17:32,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:17:32,061 INFO L225 Difference]: With dead ends: 50 [2022-01-09 23:17:32,061 INFO L226 Difference]: Without dead ends: 22 [2022-01-09 23:17:32,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-09 23:17:32,066 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-09 23:17:32,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-09 23:17:32,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-01-09 23:17:32,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-01-09 23:17:32,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-09 23:17:32,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2022-01-09 23:17:32,091 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 9 [2022-01-09 23:17:32,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:17:32,091 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2022-01-09 23:17:32,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:17:32,092 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2022-01-09 23:17:32,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-09 23:17:32,093 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:17:32,093 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-09 23:17:32,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-09 23:17:32,094 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:17:32,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:17:32,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1898116011, now seen corresponding path program 1 times [2022-01-09 23:17:32,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:17:32,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569441976] [2022-01-09 23:17:32,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:17:32,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:17:32,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:32,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-09 23:17:32,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:17:32,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569441976] [2022-01-09 23:17:32,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569441976] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-09 23:17:32,178 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-09 23:17:32,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-09 23:17:32,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267631647] [2022-01-09 23:17:32,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-09 23:17:32,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-09 23:17:32,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:17:32,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-09 23:17:32,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-09 23:17:32,181 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:17:32,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:17:32,243 INFO L93 Difference]: Finished difference Result 40 states and 50 transitions. [2022-01-09 23:17:32,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-09 23:17:32,243 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-01-09 23:17:32,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:17:32,244 INFO L225 Difference]: With dead ends: 40 [2022-01-09 23:17:32,244 INFO L226 Difference]: Without dead ends: 30 [2022-01-09 23:17:32,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-09 23:17:32,249 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 34 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-09 23:17:32,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 24 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-09 23:17:32,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-01-09 23:17:32,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2022-01-09 23:17:32,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-09 23:17:32,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2022-01-09 23:17:32,261 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 9 [2022-01-09 23:17:32,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:17:32,261 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2022-01-09 23:17:32,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:17:32,262 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2022-01-09 23:17:32,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-01-09 23:17:32,263 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:17:32,263 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-09 23:17:32,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-09 23:17:32,263 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:17:32,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:17:32,265 INFO L85 PathProgramCache]: Analyzing trace with hash 544146986, now seen corresponding path program 1 times [2022-01-09 23:17:32,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:17:32,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305657635] [2022-01-09 23:17:32,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:17:32,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:17:32,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:32,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-01-09 23:17:32,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:32,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-01-09 23:17:32,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:32,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-01-09 23:17:32,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:32,400 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-01-09 23:17:32,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:17:32,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305657635] [2022-01-09 23:17:32,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305657635] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-09 23:17:32,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85253061] [2022-01-09 23:17:32,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:17:32,401 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 23:17:32,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-09 23:17:32,404 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-09 23:17:32,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-09 23:17:32,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:32,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-09 23:17:32,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-09 23:17:32,699 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-01-09 23:17:32,699 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-09 23:17:32,788 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-01-09 23:17:32,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85253061] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-09 23:17:32,789 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-09 23:17:32,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5] total 10 [2022-01-09 23:17:32,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534280617] [2022-01-09 23:17:32,789 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-09 23:17:32,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-09 23:17:32,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:17:32,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-09 23:17:32,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-01-09 23:17:32,791 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-01-09 23:17:32,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:17:32,980 INFO L93 Difference]: Finished difference Result 72 states and 92 transitions. [2022-01-09 23:17:32,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-09 23:17:32,980 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 29 [2022-01-09 23:17:32,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:17:32,981 INFO L225 Difference]: With dead ends: 72 [2022-01-09 23:17:32,981 INFO L226 Difference]: Without dead ends: 61 [2022-01-09 23:17:32,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2022-01-09 23:17:32,982 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 136 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-09 23:17:32,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 38 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-09 23:17:32,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-01-09 23:17:32,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 48. [2022-01-09 23:17:32,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 34 states have (on average 1.088235294117647) internal successors, (37), 34 states have internal predecessors, (37), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-01-09 23:17:32,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 61 transitions. [2022-01-09 23:17:32,990 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 61 transitions. Word has length 29 [2022-01-09 23:17:32,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:17:32,990 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 61 transitions. [2022-01-09 23:17:32,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-01-09 23:17:32,990 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 61 transitions. [2022-01-09 23:17:32,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-01-09 23:17:32,992 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:17:32,992 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-09 23:17:33,023 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-09 23:17:33,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 23:17:33,214 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:17:33,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:17:33,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1645511465, now seen corresponding path program 2 times [2022-01-09 23:17:33,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:17:33,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717926247] [2022-01-09 23:17:33,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:17:33,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:17:33,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:33,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-01-09 23:17:33,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:33,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-01-09 23:17:33,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:33,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-01-09 23:17:33,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:33,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-01-09 23:17:33,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:33,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-01-09 23:17:33,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:33,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-09 23:17:33,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:33,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-09 23:17:33,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:33,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-01-09 23:17:33,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:33,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-01-09 23:17:33,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:33,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-01-09 23:17:33,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:33,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-01-09 23:17:33,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:33,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-01-09 23:17:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:33,408 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2022-01-09 23:17:33,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:17:33,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717926247] [2022-01-09 23:17:33,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717926247] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-09 23:17:33,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096892955] [2022-01-09 23:17:33,409 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-09 23:17:33,409 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 23:17:33,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-09 23:17:33,424 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-09 23:17:33,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-09 23:17:33,510 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-09 23:17:33,510 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-09 23:17:33,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-09 23:17:33,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-09 23:17:33,811 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2022-01-09 23:17:33,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-09 23:17:33,997 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2022-01-09 23:17:33,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1096892955] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-09 23:17:33,999 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-09 23:17:33,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 19 [2022-01-09 23:17:33,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112469702] [2022-01-09 23:17:33,999 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-09 23:17:34,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-09 23:17:34,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:17:34,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-09 23:17:34,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=195, Unknown=0, NotChecked=0, Total=342 [2022-01-09 23:17:34,005 INFO L87 Difference]: Start difference. First operand 48 states and 61 transitions. Second operand has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 12 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) [2022-01-09 23:17:34,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:17:34,289 INFO L93 Difference]: Finished difference Result 162 states and 206 transitions. [2022-01-09 23:17:34,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-09 23:17:34,289 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 12 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) Word has length 89 [2022-01-09 23:17:34,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:17:34,291 INFO L225 Difference]: With dead ends: 162 [2022-01-09 23:17:34,291 INFO L226 Difference]: Without dead ends: 145 [2022-01-09 23:17:34,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=222, Invalid=330, Unknown=0, NotChecked=0, Total=552 [2022-01-09 23:17:34,307 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 315 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-09 23:17:34,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [318 Valid, 63 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-09 23:17:34,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2022-01-09 23:17:34,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 96. [2022-01-09 23:17:34,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 64 states have (on average 1.046875) internal successors, (67), 64 states have internal predecessors, (67), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-01-09 23:17:34,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 127 transitions. [2022-01-09 23:17:34,329 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 127 transitions. Word has length 89 [2022-01-09 23:17:34,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:17:34,329 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 127 transitions. [2022-01-09 23:17:34,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 12 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) [2022-01-09 23:17:34,330 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 127 transitions. [2022-01-09 23:17:34,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-01-09 23:17:34,336 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:17:34,336 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 30, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-09 23:17:34,359 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-09 23:17:34,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-01-09 23:17:34,537 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:17:34,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:17:34,537 INFO L85 PathProgramCache]: Analyzing trace with hash 548463335, now seen corresponding path program 3 times [2022-01-09 23:17:34,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:17:34,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688251339] [2022-01-09 23:17:34,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:17:34,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:17:34,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:34,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-01-09 23:17:34,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:34,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-01-09 23:17:34,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:34,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-01-09 23:17:34,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:34,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-01-09 23:17:34,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:34,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-01-09 23:17:34,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:34,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-09 23:17:34,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:34,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-09 23:17:34,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:34,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-01-09 23:17:34,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:34,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-01-09 23:17:34,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:34,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-01-09 23:17:34,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:34,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-01-09 23:17:34,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:34,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-01-09 23:17:34,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:34,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-01-09 23:17:34,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:34,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-01-09 23:17:34,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:34,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-01-09 23:17:34,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:34,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-01-09 23:17:34,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:34,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-01-09 23:17:34,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:34,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-09 23:17:34,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:34,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-09 23:17:34,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:34,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-01-09 23:17:34,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:34,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-01-09 23:17:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:34,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-01-09 23:17:34,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:34,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-01-09 23:17:34,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:34,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-01-09 23:17:34,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:34,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-01-09 23:17:34,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:34,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-01-09 23:17:34,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:34,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-01-09 23:17:34,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:34,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-01-09 23:17:34,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:34,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-01-09 23:17:34,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:34,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-09 23:17:34,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:34,849 INFO L134 CoverageAnalysis]: Checked inductivity of 2120 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 1840 trivial. 0 not checked. [2022-01-09 23:17:34,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:17:34,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688251339] [2022-01-09 23:17:34,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688251339] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-09 23:17:34,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50706890] [2022-01-09 23:17:34,849 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-09 23:17:34,849 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 23:17:34,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-09 23:17:34,850 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-09 23:17:34,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-09 23:17:35,358 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-01-09 23:17:35,359 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-09 23:17:35,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-09 23:17:35,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-09 23:17:35,836 INFO L134 CoverageAnalysis]: Checked inductivity of 2120 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 2020 trivial. 0 not checked. [2022-01-09 23:17:35,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-09 23:17:36,275 INFO L134 CoverageAnalysis]: Checked inductivity of 2120 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 2020 trivial. 0 not checked. [2022-01-09 23:17:36,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50706890] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-09 23:17:36,276 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-09 23:17:36,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 14] total 37 [2022-01-09 23:17:36,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514782352] [2022-01-09 23:17:36,276 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-09 23:17:36,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-01-09 23:17:36,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:17:36,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-01-09 23:17:36,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=579, Invalid=753, Unknown=0, NotChecked=0, Total=1332 [2022-01-09 23:17:36,279 INFO L87 Difference]: Start difference. First operand 96 states and 127 transitions. Second operand has 37 states, 37 states have (on average 2.7567567567567566) internal successors, (102), 37 states have internal predecessors, (102), 12 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) [2022-01-09 23:17:36,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:17:36,972 INFO L93 Difference]: Finished difference Result 342 states and 434 transitions. [2022-01-09 23:17:36,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-09 23:17:36,973 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 2.7567567567567566) internal successors, (102), 37 states have internal predecessors, (102), 12 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) Word has length 209 [2022-01-09 23:17:36,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:17:36,975 INFO L225 Difference]: With dead ends: 342 [2022-01-09 23:17:36,975 INFO L226 Difference]: Without dead ends: 313 [2022-01-09 23:17:36,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 454 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 745 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=876, Invalid=1380, Unknown=0, NotChecked=0, Total=2256 [2022-01-09 23:17:36,976 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 677 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 514 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 1045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 514 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-09 23:17:36,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [707 Valid, 131 Invalid, 1045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [514 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-09 23:17:36,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2022-01-09 23:17:36,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 192. [2022-01-09 23:17:36,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 124 states have (on average 1.0241935483870968) internal successors, (127), 124 states have internal predecessors, (127), 66 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2022-01-09 23:17:36,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 259 transitions. [2022-01-09 23:17:36,994 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 259 transitions. Word has length 209 [2022-01-09 23:17:36,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:17:36,994 INFO L470 AbstractCegarLoop]: Abstraction has 192 states and 259 transitions. [2022-01-09 23:17:36,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 2.7567567567567566) internal successors, (102), 37 states have internal predecessors, (102), 12 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) [2022-01-09 23:17:36,995 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 259 transitions. [2022-01-09 23:17:37,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2022-01-09 23:17:37,019 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:17:37,019 INFO L514 BasicCegarLoop]: trace histogram [66, 66, 66, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-09 23:17:37,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-09 23:17:37,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 23:17:37,240 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:17:37,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:17:37,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1915094685, now seen corresponding path program 4 times [2022-01-09 23:17:37,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:17:37,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531298832] [2022-01-09 23:17:37,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:17:37,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:17:37,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-01-09 23:17:37,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-01-09 23:17:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-01-09 23:17:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-01-09 23:17:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-01-09 23:17:37,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-09 23:17:37,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-09 23:17:37,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-01-09 23:17:37,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-01-09 23:17:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-01-09 23:17:37,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-01-09 23:17:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-01-09 23:17:37,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-01-09 23:17:37,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-01-09 23:17:37,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-01-09 23:17:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-01-09 23:17:37,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-01-09 23:17:37,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-09 23:17:37,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-09 23:17:37,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-01-09 23:17:37,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-01-09 23:17:37,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-01-09 23:17:37,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-01-09 23:17:37,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-01-09 23:17:37,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-01-09 23:17:37,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-01-09 23:17:37,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-01-09 23:17:37,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-01-09 23:17:37,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-01-09 23:17:37,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-09 23:17:37,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-09 23:17:37,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-01-09 23:17:37,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-01-09 23:17:37,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-01-09 23:17:37,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-01-09 23:17:37,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-01-09 23:17:37,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-01-09 23:17:37,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-01-09 23:17:37,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-01-09 23:17:37,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-01-09 23:17:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-01-09 23:17:37,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-09 23:17:37,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-09 23:17:37,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-01-09 23:17:37,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-01-09 23:17:37,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-01-09 23:17:37,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-01-09 23:17:37,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-01-09 23:17:37,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-01-09 23:17:37,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-01-09 23:17:37,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2022-01-09 23:17:37,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-01-09 23:17:37,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-01-09 23:17:37,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-09 23:17:37,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-09 23:17:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-01-09 23:17:37,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2022-01-09 23:17:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2022-01-09 23:17:37,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-01-09 23:17:37,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2022-01-09 23:17:37,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2022-01-09 23:17:37,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-01-09 23:17:37,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2022-01-09 23:17:37,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2022-01-09 23:17:37,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-01-09 23:17:37,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-09 23:17:37,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:17:37,846 INFO L134 CoverageAnalysis]: Checked inductivity of 10472 backedges. 0 proven. 1408 refuted. 0 times theorem prover too weak. 9064 trivial. 0 not checked. [2022-01-09 23:17:37,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:17:37,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531298832] [2022-01-09 23:17:37,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531298832] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-09 23:17:37,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103543029] [2022-01-09 23:17:37,847 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-09 23:17:37,847 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 23:17:37,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-09 23:17:37,864 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-09 23:17:37,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-09 23:17:38,133 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-09 23:17:38,133 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-09 23:17:38,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 280 conjunts are in the unsatisfiable core [2022-01-09 23:17:38,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-09 23:17:38,206 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-01-09 23:17:38,206 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 28 [2022-01-09 23:17:38,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:17:38,485 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 31 [2022-01-09 23:17:38,489 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 28 [2022-01-09 23:17:38,492 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-01-09 23:17:38,495 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-01-09 23:17:38,891 INFO L353 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-01-09 23:17:38,891 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2022-01-09 23:17:39,235 INFO L353 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-01-09 23:17:39,235 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2022-01-09 23:17:39,644 INFO L353 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-01-09 23:17:39,644 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2022-01-09 23:17:39,998 INFO L353 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-01-09 23:17:39,999 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2022-01-09 23:17:40,399 INFO L353 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-01-09 23:17:40,399 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2022-01-09 23:17:40,759 INFO L353 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-01-09 23:17:40,759 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2022-01-09 23:17:41,123 INFO L353 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-01-09 23:17:41,124 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2022-01-09 23:17:41,529 INFO L353 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-01-09 23:17:41,529 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2022-01-09 23:17:41,913 INFO L353 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-01-09 23:17:41,913 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2022-01-09 23:17:42,295 INFO L353 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-01-09 23:17:42,295 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2022-01-09 23:17:42,699 INFO L353 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-01-09 23:17:42,700 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2022-01-09 23:17:43,091 INFO L353 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-01-09 23:17:43,091 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2022-01-09 23:17:43,473 INFO L353 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-01-09 23:17:43,474 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2022-01-09 23:17:43,914 INFO L353 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-01-09 23:17:43,914 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2022-01-09 23:17:44,351 INFO L353 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-01-09 23:17:44,351 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2022-01-09 23:17:44,750 INFO L353 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-01-09 23:17:44,751 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2022-01-09 23:17:45,162 INFO L353 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-01-09 23:17:45,162 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2022-01-09 23:17:45,546 INFO L353 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-01-09 23:17:45,546 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2022-01-09 23:17:45,938 INFO L353 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-01-09 23:17:45,939 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2022-01-09 23:17:46,412 INFO L353 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-01-09 23:17:46,412 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2022-01-09 23:17:46,506 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 27 [2022-01-09 23:17:46,546 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 42 [2022-01-09 23:17:46,752 INFO L353 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-01-09 23:17:46,752 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 47 [2022-01-09 23:17:46,898 INFO L353 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-01-09 23:17:46,899 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 47 [2022-01-09 23:17:47,029 INFO L353 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-01-09 23:17:47,031 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 47 [2022-01-09 23:17:47,202 INFO L353 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-01-09 23:17:47,203 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 47 [2022-01-09 23:17:47,354 INFO L353 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-01-09 23:17:47,354 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 47 [2022-01-09 23:17:47,483 INFO L353 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-01-09 23:17:47,483 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 47 [2022-01-09 23:17:47,675 INFO L353 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-01-09 23:17:47,676 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 47 [2022-01-09 23:17:47,824 INFO L353 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-01-09 23:17:47,825 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 47 [2022-01-09 23:17:47,973 INFO L353 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-01-09 23:17:47,974 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 47 [2022-01-09 23:17:48,106 INFO L353 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-01-09 23:17:48,107 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 47 [2022-01-09 23:17:48,279 INFO L353 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-01-09 23:17:48,279 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 47 [2022-01-09 23:17:48,425 INFO L353 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-01-09 23:17:48,425 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 47 [2022-01-09 23:17:48,575 INFO L353 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-01-09 23:17:48,575 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 47 [2022-01-09 23:17:48,723 INFO L353 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-01-09 23:17:48,723 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 47 [2022-01-09 23:17:48,906 INFO L353 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-01-09 23:17:48,906 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 47 [2022-01-09 23:17:49,062 INFO L353 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-01-09 23:17:49,062 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 47 [2022-01-09 23:17:49,227 INFO L353 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-01-09 23:17:49,227 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 47 [2022-01-09 23:17:49,421 INFO L353 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-01-09 23:17:49,421 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 47 [2022-01-09 23:17:49,578 INFO L353 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-01-09 23:17:49,578 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 47 [2022-01-09 23:17:49,735 INFO L353 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-01-09 23:17:49,735 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 47 [2022-01-09 23:17:49,992 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 12 [2022-01-09 23:17:50,047 INFO L134 CoverageAnalysis]: Checked inductivity of 10472 backedges. 2757 proven. 590 refuted. 0 times theorem prover too weak. 7125 trivial. 0 not checked. [2022-01-09 23:17:50,048 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-09 23:17:52,227 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_117| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) |v_ULTIMATE.start_main_~i~0#1_117|)) (forall ((v_ArrVal_854 Int)) (< 0 (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#c~0#1.base|) (+ |c_ULTIMATE.start_main_~#c~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_117| 4)) v_ArrVal_854) (+ |c_ULTIMATE.start_main_~#c~0#1.offset| 4)))))) is different from false [2022-01-09 23:18:03,433 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_118| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) |v_ULTIMATE.start_main_~i~0#1_118|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_117| Int) (v_ArrVal_854 Int) (v_ArrVal_853 Int)) (or (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_118| 1) |v_ULTIMATE.start_main_~i~0#1_117|)) (< 0 (select (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#c~0#1.base|) (+ |c_ULTIMATE.start_main_~#c~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_118| 4)) v_ArrVal_853) (+ |c_ULTIMATE.start_main_~#c~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_117| 4)) v_ArrVal_854) (+ |c_ULTIMATE.start_main_~#c~0#1.offset| 4))))))) is different from false [2022-01-09 23:18:41,945 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_119| Int)) (or (forall ((v_ArrVal_851 Int) (|v_ULTIMATE.start_main_~i~0#1_118| Int) (|v_ULTIMATE.start_main_~i~0#1_117| Int) (v_ArrVal_854 Int) (v_ArrVal_853 Int)) (or (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_118| 1) |v_ULTIMATE.start_main_~i~0#1_117|)) (< 0 (select (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#c~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_119| 4) |c_ULTIMATE.start_main_~#c~0#1.offset|) v_ArrVal_851) (+ |c_ULTIMATE.start_main_~#c~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_118| 4)) v_ArrVal_853) (+ |c_ULTIMATE.start_main_~#c~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_117| 4)) v_ArrVal_854) (+ |c_ULTIMATE.start_main_~#c~0#1.offset| 4))) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_119| 1) |v_ULTIMATE.start_main_~i~0#1_118|)))) (not (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) |v_ULTIMATE.start_main_~i~0#1_119|)))) is different from false