/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_Bitvector.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label09.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 04:15:32,199 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 04:15:32,201 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 04:15:32,263 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 04:15:32,301 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 04:15:32,302 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 04:15:32,302 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 04:15:32,306 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-01-10 04:15:32,333 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 04:15:32,333 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 04:15:32,333 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 04:15:32,333 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 04:15:32,334 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 04:15:32,334 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 04:15:32,334 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 04:15:32,335 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 04:15:32,335 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 04:15:32,335 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 04:15:32,335 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 04:15:32,336 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 04:15:32,336 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 04:15:32,336 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 04:15:32,336 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 04:15:32,336 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 04:15:32,336 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 04:15:32,336 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 04:15:32,336 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 04:15:32,337 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 04:15:32,337 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 04:15:32,337 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 04:15:32,337 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 04:15:32,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 04:15:32,338 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 04:15:32,338 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 04:15:32,338 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 04:15:32,338 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 04:15:32,339 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 04:15:32,339 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 04:15:32,339 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 04:15:32,339 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 04:15:32,339 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 04:15:32,339 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 04:15:32,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 04:15:32,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 04:15:32,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 04:15:32,542 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 04:15:32,543 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 04:15:32,543 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label09.c [2022-01-10 04:15:32,595 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f40c6eaa6/3f5358349bbe4f4db468500b7935f7ef/FLAG66f932bf8 [2022-01-10 04:15:33,044 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 04:15:33,044 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label09.c [2022-01-10 04:15:33,063 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f40c6eaa6/3f5358349bbe4f4db468500b7935f7ef/FLAG66f932bf8 [2022-01-10 04:15:33,578 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f40c6eaa6/3f5358349bbe4f4db468500b7935f7ef [2022-01-10 04:15:33,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 04:15:33,581 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 04:15:33,584 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 04:15:33,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 04:15:33,587 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 04:15:33,587 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 04:15:33" (1/1) ... [2022-01-10 04:15:33,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@671cac36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:15:33, skipping insertion in model container [2022-01-10 04:15:33,588 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 04:15:33" (1/1) ... [2022-01-10 04:15:33,593 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 04:15:33,624 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 04:15:33,852 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label09.c[20223,20236] [2022-01-10 04:15:33,868 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 04:15:33,875 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 04:15:33,965 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label09.c[20223,20236] [2022-01-10 04:15:33,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 04:15:34,000 INFO L208 MainTranslator]: Completed translation [2022-01-10 04:15:34,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:15:34 WrapperNode [2022-01-10 04:15:34,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 04:15:34,002 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 04:15:34,002 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 04:15:34,002 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 04:15:34,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:15:34" (1/1) ... [2022-01-10 04:15:34,031 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:15:34" (1/1) ... [2022-01-10 04:15:34,065 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 655 [2022-01-10 04:15:34,066 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 04:15:34,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 04:15:34,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 04:15:34,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 04:15:34,074 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:15:34" (1/1) ... [2022-01-10 04:15:34,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:15:34" (1/1) ... [2022-01-10 04:15:34,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:15:34" (1/1) ... [2022-01-10 04:15:34,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:15:34" (1/1) ... [2022-01-10 04:15:34,092 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:15:34" (1/1) ... [2022-01-10 04:15:34,097 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:15:34" (1/1) ... [2022-01-10 04:15:34,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:15:34" (1/1) ... [2022-01-10 04:15:34,113 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 04:15:34,113 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 04:15:34,113 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 04:15:34,114 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 04:15:34,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:15:34" (1/1) ... [2022-01-10 04:15:34,133 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 04:15:34,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 04:15:34,164 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) [2022-01-10 04:15:34,183 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 [2022-01-10 04:15:34,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 04:15:34,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 04:15:34,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 04:15:34,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 04:15:34,246 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 04:15:34,247 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 04:15:35,058 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 04:15:35,067 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 04:15:35,069 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 04:15:35,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 04:15:35 BoogieIcfgContainer [2022-01-10 04:15:35,071 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 04:15:35,072 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 04:15:35,072 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 04:15:35,075 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 04:15:35,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 04:15:33" (1/3) ... [2022-01-10 04:15:35,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2df242e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 04:15:35, skipping insertion in model container [2022-01-10 04:15:35,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:15:34" (2/3) ... [2022-01-10 04:15:35,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2df242e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 04:15:35, skipping insertion in model container [2022-01-10 04:15:35,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 04:15:35" (3/3) ... [2022-01-10 04:15:35,078 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label09.c [2022-01-10 04:15:35,081 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 04:15:35,082 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 04:15:35,128 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 04:15:35,135 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 [2022-01-10 04:15:35,136 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 04:15:35,161 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 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) [2022-01-10 04:15:35,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-01-10 04:15:35,175 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:15:35,176 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:15:35,177 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:15:35,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:15:35,181 INFO L85 PathProgramCache]: Analyzing trace with hash -286092569, now seen corresponding path program 1 times [2022-01-10 04:15:35,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:15:35,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1283108512] [2022-01-10 04:15:35,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:15:35,194 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:15:35,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:15:35,209 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:15:35,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-01-10 04:15:35,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:15:35,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 16 conjunts are in the unsatisfiable core [2022-01-10 04:15:35,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:15:41,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 04:15:41,110 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:15:41,111 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:15:41,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1283108512] [2022-01-10 04:15:41,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1283108512] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:15:41,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:15:41,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 04:15:41,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996534534] [2022-01-10 04:15:41,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:15:41,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 04:15:41,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:15:41,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 04:15:41,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-01-10 04:15:41,145 INFO L87 Difference]: Start difference. First operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 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) Second operand has 10 states, 10 states have (on average 11.8) internal successors, (118), 9 states have internal predecessors, (118), 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) [2022-01-10 04:15:42,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:15:42,731 INFO L93 Difference]: Finished difference Result 724 states and 1298 transitions. [2022-01-10 04:15:42,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 04:15:42,733 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.8) internal successors, (118), 9 states have internal predecessors, (118), 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 118 [2022-01-10 04:15:42,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:15:42,741 INFO L225 Difference]: With dead ends: 724 [2022-01-10 04:15:42,741 INFO L226 Difference]: Without dead ends: 324 [2022-01-10 04:15:42,744 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-01-10 04:15:42,747 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 513 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 1468 mSolverCounterSat, 249 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 1717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 249 IncrementalHoareTripleChecker+Valid, 1468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-10 04:15:42,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [513 Valid, 185 Invalid, 1717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [249 Valid, 1468 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-10 04:15:42,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2022-01-10 04:15:42,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2022-01-10 04:15:42,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 323 states have (on average 1.3529411764705883) internal successors, (437), 323 states have internal predecessors, (437), 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) [2022-01-10 04:15:42,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 437 transitions. [2022-01-10 04:15:42,786 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 437 transitions. Word has length 118 [2022-01-10 04:15:42,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:15:42,787 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 437 transitions. [2022-01-10 04:15:42,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.8) internal successors, (118), 9 states have internal predecessors, (118), 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) [2022-01-10 04:15:42,787 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 437 transitions. [2022-01-10 04:15:42,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-01-10 04:15:42,789 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:15:42,789 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:15:42,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-01-10 04:15:42,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:15:42,995 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:15:42,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:15:42,996 INFO L85 PathProgramCache]: Analyzing trace with hash -674279649, now seen corresponding path program 1 times [2022-01-10 04:15:42,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:15:42,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1338535520] [2022-01-10 04:15:42,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:15:42,997 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:15:42,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:15:42,998 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:15:42,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-01-10 04:15:43,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:15:43,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 16 conjunts are in the unsatisfiable core [2022-01-10 04:15:43,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:15:45,187 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 04:15:45,187 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:15:45,187 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:15:45,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1338535520] [2022-01-10 04:15:45,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1338535520] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:15:45,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:15:45,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 04:15:45,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139134889] [2022-01-10 04:15:45,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:15:45,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 04:15:45,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:15:45,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 04:15:45,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2022-01-10 04:15:45,197 INFO L87 Difference]: Start difference. First operand 324 states and 437 transitions. Second operand has 10 states, 10 states have (on average 12.2) internal successors, (122), 9 states have internal predecessors, (122), 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) [2022-01-10 04:15:46,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:15:46,089 INFO L93 Difference]: Finished difference Result 921 states and 1313 transitions. [2022-01-10 04:15:46,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 04:15:46,090 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 9 states have internal predecessors, (122), 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 122 [2022-01-10 04:15:46,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:15:46,092 INFO L225 Difference]: With dead ends: 921 [2022-01-10 04:15:46,093 INFO L226 Difference]: Without dead ends: 657 [2022-01-10 04:15:46,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2022-01-10 04:15:46,112 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 244 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1144 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 1235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-10 04:15:46,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [244 Valid, 146 Invalid, 1235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1144 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-10 04:15:46,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2022-01-10 04:15:46,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 651. [2022-01-10 04:15:46,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 650 states have (on average 1.2938461538461539) internal successors, (841), 650 states have internal predecessors, (841), 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) [2022-01-10 04:15:46,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 841 transitions. [2022-01-10 04:15:46,133 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 841 transitions. Word has length 122 [2022-01-10 04:15:46,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:15:46,133 INFO L470 AbstractCegarLoop]: Abstraction has 651 states and 841 transitions. [2022-01-10 04:15:46,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 9 states have internal predecessors, (122), 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) [2022-01-10 04:15:46,134 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 841 transitions. [2022-01-10 04:15:46,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-10 04:15:46,136 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:15:46,137 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:15:46,147 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-01-10 04:15:46,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:15:46,347 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:15:46,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:15:46,348 INFO L85 PathProgramCache]: Analyzing trace with hash 893260638, now seen corresponding path program 1 times [2022-01-10 04:15:46,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:15:46,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [764483060] [2022-01-10 04:15:46,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:15:46,349 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:15:46,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:15:46,351 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:15:46,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-01-10 04:15:46,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:15:46,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 04:15:46,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:15:46,608 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-01-10 04:15:46,608 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:15:46,608 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:15:46,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [764483060] [2022-01-10 04:15:46,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [764483060] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:15:46,609 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:15:46,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 04:15:46,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903409617] [2022-01-10 04:15:46,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:15:46,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 04:15:46,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:15:46,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 04:15:46,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:15:46,612 INFO L87 Difference]: Start difference. First operand 651 states and 841 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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) [2022-01-10 04:15:47,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:15:47,045 INFO L93 Difference]: Finished difference Result 1766 states and 2322 transitions. [2022-01-10 04:15:47,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 04:15:47,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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 137 [2022-01-10 04:15:47,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:15:47,049 INFO L225 Difference]: With dead ends: 1766 [2022-01-10 04:15:47,049 INFO L226 Difference]: Without dead ends: 1175 [2022-01-10 04:15:47,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:15:47,051 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 29 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 04:15:47,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 122 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 04:15:47,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2022-01-10 04:15:47,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 913. [2022-01-10 04:15:47,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 912 states have (on average 1.2883771929824561) internal successors, (1175), 912 states have internal predecessors, (1175), 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) [2022-01-10 04:15:47,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1175 transitions. [2022-01-10 04:15:47,073 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1175 transitions. Word has length 137 [2022-01-10 04:15:47,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:15:47,074 INFO L470 AbstractCegarLoop]: Abstraction has 913 states and 1175 transitions. [2022-01-10 04:15:47,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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) [2022-01-10 04:15:47,074 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1175 transitions. [2022-01-10 04:15:47,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-01-10 04:15:47,076 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:15:47,076 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:15:47,084 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-01-10 04:15:47,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:15:47,284 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:15:47,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:15:47,285 INFO L85 PathProgramCache]: Analyzing trace with hash -26410351, now seen corresponding path program 1 times [2022-01-10 04:15:47,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:15:47,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1389842818] [2022-01-10 04:15:47,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:15:47,286 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:15:47,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:15:47,288 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:15:47,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-01-10 04:15:47,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:15:47,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 04:15:47,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:15:47,599 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 04:15:47,600 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:15:47,600 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:15:47,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1389842818] [2022-01-10 04:15:47,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1389842818] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:15:47,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:15:47,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 04:15:47,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648836113] [2022-01-10 04:15:47,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:15:47,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 04:15:47,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:15:47,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 04:15:47,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:15:47,601 INFO L87 Difference]: Start difference. First operand 913 states and 1175 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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) [2022-01-10 04:15:48,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:15:48,043 INFO L93 Difference]: Finished difference Result 2552 states and 3324 transitions. [2022-01-10 04:15:48,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 04:15:48,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 155 [2022-01-10 04:15:48,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:15:48,049 INFO L225 Difference]: With dead ends: 2552 [2022-01-10 04:15:48,049 INFO L226 Difference]: Without dead ends: 1699 [2022-01-10 04:15:48,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:15:48,056 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 112 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 04:15:48,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 68 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 04:15:48,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2022-01-10 04:15:48,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 1437. [2022-01-10 04:15:48,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1437 states, 1436 states have (on average 1.2249303621169916) internal successors, (1759), 1436 states have internal predecessors, (1759), 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) [2022-01-10 04:15:48,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1437 states to 1437 states and 1759 transitions. [2022-01-10 04:15:48,082 INFO L78 Accepts]: Start accepts. Automaton has 1437 states and 1759 transitions. Word has length 155 [2022-01-10 04:15:48,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:15:48,082 INFO L470 AbstractCegarLoop]: Abstraction has 1437 states and 1759 transitions. [2022-01-10 04:15:48,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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) [2022-01-10 04:15:48,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1437 states and 1759 transitions. [2022-01-10 04:15:48,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-01-10 04:15:48,085 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:15:48,086 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:15:48,094 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-01-10 04:15:48,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:15:48,293 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:15:48,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:15:48,293 INFO L85 PathProgramCache]: Analyzing trace with hash -193386277, now seen corresponding path program 1 times [2022-01-10 04:15:48,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:15:48,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2055911470] [2022-01-10 04:15:48,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:15:48,294 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:15:48,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:15:48,295 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:15:48,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-01-10 04:15:48,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:15:48,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 04:15:48,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:15:48,564 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2022-01-10 04:15:48,564 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:15:48,564 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:15:48,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2055911470] [2022-01-10 04:15:48,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2055911470] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:15:48,564 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:15:48,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 04:15:48,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580380785] [2022-01-10 04:15:48,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:15:48,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 04:15:48,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:15:48,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 04:15:48,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:15:48,566 INFO L87 Difference]: Start difference. First operand 1437 states and 1759 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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) [2022-01-10 04:15:48,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:15:48,944 INFO L93 Difference]: Finished difference Result 2814 states and 3453 transitions. [2022-01-10 04:15:48,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 04:15:48,944 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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 213 [2022-01-10 04:15:48,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:15:48,947 INFO L225 Difference]: With dead ends: 2814 [2022-01-10 04:15:48,947 INFO L226 Difference]: Without dead ends: 1175 [2022-01-10 04:15:48,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:15:48,949 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 128 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 04:15:48,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 124 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 04:15:48,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2022-01-10 04:15:48,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 1044. [2022-01-10 04:15:48,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1044 states, 1043 states have (on average 1.1064237775647172) internal successors, (1154), 1043 states have internal predecessors, (1154), 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) [2022-01-10 04:15:48,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1154 transitions. [2022-01-10 04:15:48,963 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1154 transitions. Word has length 213 [2022-01-10 04:15:48,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:15:48,963 INFO L470 AbstractCegarLoop]: Abstraction has 1044 states and 1154 transitions. [2022-01-10 04:15:48,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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) [2022-01-10 04:15:48,964 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1154 transitions. [2022-01-10 04:15:48,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-01-10 04:15:48,966 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:15:48,966 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:15:48,974 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-01-10 04:15:49,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:15:49,173 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:15:49,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:15:49,173 INFO L85 PathProgramCache]: Analyzing trace with hash 82107608, now seen corresponding path program 1 times [2022-01-10 04:15:49,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:15:49,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2082757462] [2022-01-10 04:15:49,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:15:49,174 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:15:49,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:15:49,175 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:15:49,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-01-10 04:15:49,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:15:49,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 16 conjunts are in the unsatisfiable core [2022-01-10 04:15:49,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:15:51,413 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-10 04:15:51,413 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:15:51,414 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:15:51,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2082757462] [2022-01-10 04:15:51,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2082757462] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:15:51,414 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:15:51,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-10 04:15:51,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669665833] [2022-01-10 04:15:51,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:15:51,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-10 04:15:51,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:15:51,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-10 04:15:51,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2022-01-10 04:15:51,415 INFO L87 Difference]: Start difference. First operand 1044 states and 1154 transitions. Second operand has 11 states, 11 states have (on average 21.181818181818183) internal successors, (233), 10 states have internal predecessors, (233), 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) [2022-01-10 04:15:52,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:15:52,521 INFO L93 Difference]: Finished difference Result 2095 states and 2338 transitions. [2022-01-10 04:15:52,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 04:15:52,521 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 21.181818181818183) internal successors, (233), 10 states have internal predecessors, (233), 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 237 [2022-01-10 04:15:52,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:15:52,524 INFO L225 Difference]: With dead ends: 2095 [2022-01-10 04:15:52,524 INFO L226 Difference]: Without dead ends: 1111 [2022-01-10 04:15:52,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2022-01-10 04:15:52,526 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 383 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1640 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 1701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-10 04:15:52,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [383 Valid, 74 Invalid, 1701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1640 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-10 04:15:52,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2022-01-10 04:15:52,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 1108. [2022-01-10 04:15:52,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1108 states, 1107 states have (on average 1.09936766034327) internal successors, (1217), 1107 states have internal predecessors, (1217), 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) [2022-01-10 04:15:52,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1217 transitions. [2022-01-10 04:15:52,541 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1217 transitions. Word has length 237 [2022-01-10 04:15:52,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:15:52,541 INFO L470 AbstractCegarLoop]: Abstraction has 1108 states and 1217 transitions. [2022-01-10 04:15:52,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 21.181818181818183) internal successors, (233), 10 states have internal predecessors, (233), 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) [2022-01-10 04:15:52,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1217 transitions. [2022-01-10 04:15:52,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-01-10 04:15:52,544 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:15:52,544 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:15:52,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-01-10 04:15:52,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:15:52,750 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:15:52,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:15:52,751 INFO L85 PathProgramCache]: Analyzing trace with hash -872204405, now seen corresponding path program 1 times [2022-01-10 04:15:52,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:15:52,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1599237791] [2022-01-10 04:15:52,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:15:52,752 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:15:52,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:15:52,753 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:15:52,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-01-10 04:15:52,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:15:52,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 16 conjunts are in the unsatisfiable core [2022-01-10 04:15:52,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:15:54,816 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-10 04:15:54,816 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:15:54,816 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:15:54,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1599237791] [2022-01-10 04:15:54,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1599237791] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:15:54,817 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:15:54,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-10 04:15:54,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386298631] [2022-01-10 04:15:54,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:15:54,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-10 04:15:54,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:15:54,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-10 04:15:54,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2022-01-10 04:15:54,818 INFO L87 Difference]: Start difference. First operand 1108 states and 1217 transitions. Second operand has 11 states, 11 states have (on average 22.09090909090909) internal successors, (243), 10 states have internal predecessors, (243), 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) [2022-01-10 04:15:55,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:15:55,491 INFO L93 Difference]: Finished difference Result 2738 states and 3015 transitions. [2022-01-10 04:15:55,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 04:15:55,492 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 22.09090909090909) internal successors, (243), 10 states have internal predecessors, (243), 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 253 [2022-01-10 04:15:55,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:15:55,496 INFO L225 Difference]: With dead ends: 2738 [2022-01-10 04:15:55,496 INFO L226 Difference]: Without dead ends: 1690 [2022-01-10 04:15:55,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2022-01-10 04:15:55,497 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 323 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 859 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 04:15:55,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [323 Valid, 52 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 859 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 04:15:55,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2022-01-10 04:15:55,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 1166. [2022-01-10 04:15:55,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1166 states, 1165 states have (on average 1.0969957081545065) internal successors, (1278), 1165 states have internal predecessors, (1278), 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) [2022-01-10 04:15:55,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1166 states to 1166 states and 1278 transitions. [2022-01-10 04:15:55,515 INFO L78 Accepts]: Start accepts. Automaton has 1166 states and 1278 transitions. Word has length 253 [2022-01-10 04:15:55,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:15:55,515 INFO L470 AbstractCegarLoop]: Abstraction has 1166 states and 1278 transitions. [2022-01-10 04:15:55,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 22.09090909090909) internal successors, (243), 10 states have internal predecessors, (243), 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) [2022-01-10 04:15:55,515 INFO L276 IsEmpty]: Start isEmpty. Operand 1166 states and 1278 transitions. [2022-01-10 04:15:55,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-01-10 04:15:55,518 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:15:55,518 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:15:55,540 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-01-10 04:15:55,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:15:55,725 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:15:55,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:15:55,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1975194419, now seen corresponding path program 1 times [2022-01-10 04:15:55,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:15:55,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1450832246] [2022-01-10 04:15:55,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:15:55,728 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:15:55,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:15:55,729 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:15:55,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-01-10 04:15:55,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:15:55,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 16 conjunts are in the unsatisfiable core [2022-01-10 04:15:55,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:15:57,979 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-10 04:15:57,979 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:15:57,979 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:15:57,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1450832246] [2022-01-10 04:15:57,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1450832246] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:15:57,979 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:15:57,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-10 04:15:57,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736106215] [2022-01-10 04:15:57,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:15:57,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-10 04:15:57,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:15:57,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-10 04:15:57,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-01-10 04:15:57,980 INFO L87 Difference]: Start difference. First operand 1166 states and 1278 transitions. Second operand has 12 states, 12 states have (on average 20.25) internal successors, (243), 11 states have internal predecessors, (243), 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) [2022-01-10 04:15:58,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:15:58,749 INFO L93 Difference]: Finished difference Result 2458 states and 2714 transitions. [2022-01-10 04:15:58,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 04:15:58,750 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 20.25) internal successors, (243), 11 states have internal predecessors, (243), 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 259 [2022-01-10 04:15:58,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:15:58,753 INFO L225 Difference]: With dead ends: 2458 [2022-01-10 04:15:58,753 INFO L226 Difference]: Without dead ends: 1335 [2022-01-10 04:15:58,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-01-10 04:15:58,754 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 557 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 999 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 1052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 04:15:58,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [557 Valid, 62 Invalid, 1052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 999 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 04:15:58,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2022-01-10 04:15:58,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 1201. [2022-01-10 04:15:58,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1201 states, 1200 states have (on average 1.0966666666666667) internal successors, (1316), 1200 states have internal predecessors, (1316), 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) [2022-01-10 04:15:58,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1201 states to 1201 states and 1316 transitions. [2022-01-10 04:15:58,768 INFO L78 Accepts]: Start accepts. Automaton has 1201 states and 1316 transitions. Word has length 259 [2022-01-10 04:15:58,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:15:58,769 INFO L470 AbstractCegarLoop]: Abstraction has 1201 states and 1316 transitions. [2022-01-10 04:15:58,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 20.25) internal successors, (243), 11 states have internal predecessors, (243), 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) [2022-01-10 04:15:58,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1201 states and 1316 transitions. [2022-01-10 04:15:58,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2022-01-10 04:15:58,771 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:15:58,772 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:15:58,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-01-10 04:15:58,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:15:58,979 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:15:58,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:15:58,979 INFO L85 PathProgramCache]: Analyzing trace with hash -828390553, now seen corresponding path program 1 times [2022-01-10 04:15:58,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:15:58,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1214195001] [2022-01-10 04:15:58,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:15:58,981 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:15:58,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:15:58,982 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:15:58,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-01-10 04:15:59,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:15:59,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 16 conjunts are in the unsatisfiable core [2022-01-10 04:15:59,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:16:02,274 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 128 proven. 142 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-10 04:16:02,274 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 04:16:09,564 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 144 proven. 126 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-10 04:16:09,564 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:16:09,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1214195001] [2022-01-10 04:16:09,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1214195001] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 04:16:09,565 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 04:16:09,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2022-01-10 04:16:09,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692188106] [2022-01-10 04:16:09,565 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 04:16:09,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-10 04:16:09,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:16:09,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-10 04:16:09,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=338, Unknown=0, NotChecked=0, Total=506 [2022-01-10 04:16:09,566 INFO L87 Difference]: Start difference. First operand 1201 states and 1316 transitions. Second operand has 23 states, 23 states have (on average 17.652173913043477) internal successors, (406), 22 states have internal predecessors, (406), 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) [2022-01-10 04:16:12,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:16:12,562 INFO L93 Difference]: Finished difference Result 3381 states and 3765 transitions. [2022-01-10 04:16:12,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-10 04:16:12,562 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 17.652173913043477) internal successors, (406), 22 states have internal predecessors, (406), 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 265 [2022-01-10 04:16:12,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:16:12,567 INFO L225 Difference]: With dead ends: 3381 [2022-01-10 04:16:12,567 INFO L226 Difference]: Without dead ends: 1978 [2022-01-10 04:16:12,568 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 537 GetRequests, 507 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=347, Invalid=645, Unknown=0, NotChecked=0, Total=992 [2022-01-10 04:16:12,569 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 1688 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 3033 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1688 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 3207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 3033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-01-10 04:16:12,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1688 Valid, 125 Invalid, 3207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 3033 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-01-10 04:16:12,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1978 states. [2022-01-10 04:16:12,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1978 to 1201. [2022-01-10 04:16:12,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1201 states, 1200 states have (on average 1.0966666666666667) internal successors, (1316), 1200 states have internal predecessors, (1316), 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) [2022-01-10 04:16:12,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1201 states to 1201 states and 1316 transitions. [2022-01-10 04:16:12,588 INFO L78 Accepts]: Start accepts. Automaton has 1201 states and 1316 transitions. Word has length 265 [2022-01-10 04:16:12,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:16:12,588 INFO L470 AbstractCegarLoop]: Abstraction has 1201 states and 1316 transitions. [2022-01-10 04:16:12,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 17.652173913043477) internal successors, (406), 22 states have internal predecessors, (406), 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) [2022-01-10 04:16:12,589 INFO L276 IsEmpty]: Start isEmpty. Operand 1201 states and 1316 transitions. [2022-01-10 04:16:12,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2022-01-10 04:16:12,591 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:16:12,592 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:16:12,611 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-01-10 04:16:12,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:16:12,798 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:16:12,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:16:12,798 INFO L85 PathProgramCache]: Analyzing trace with hash 2004559128, now seen corresponding path program 1 times [2022-01-10 04:16:12,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:16:12,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [539131184] [2022-01-10 04:16:12,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:16:12,800 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:16:12,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:16:12,801 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:16:12,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-01-10 04:16:12,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:16:12,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-10 04:16:12,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:16:13,763 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 194 proven. 8 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-01-10 04:16:13,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 04:16:15,195 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 166 proven. 36 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-01-10 04:16:15,196 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:16:15,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [539131184] [2022-01-10 04:16:15,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [539131184] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 04:16:15,196 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 04:16:15,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-01-10 04:16:15,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709299201] [2022-01-10 04:16:15,196 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 04:16:15,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 04:16:15,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:16:15,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 04:16:15,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-10 04:16:15,197 INFO L87 Difference]: Start difference. First operand 1201 states and 1316 transitions. Second operand has 7 states, 7 states have (on average 38.57142857142857) internal successors, (270), 6 states have internal predecessors, (270), 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) [2022-01-10 04:16:16,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:16:16,318 INFO L93 Difference]: Finished difference Result 2759 states and 3011 transitions. [2022-01-10 04:16:16,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-10 04:16:16,326 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 38.57142857142857) internal successors, (270), 6 states have internal predecessors, (270), 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 271 [2022-01-10 04:16:16,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:16:16,329 INFO L225 Difference]: With dead ends: 2759 [2022-01-10 04:16:16,330 INFO L226 Difference]: Without dead ends: 1618 [2022-01-10 04:16:16,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 535 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-01-10 04:16:16,331 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 862 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 1166 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 1255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-10 04:16:16,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [862 Valid, 102 Invalid, 1255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1166 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-10 04:16:16,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1618 states. [2022-01-10 04:16:16,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1618 to 1332. [2022-01-10 04:16:16,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1332 states, 1331 states have (on average 1.0901577761081893) internal successors, (1451), 1331 states have internal predecessors, (1451), 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) [2022-01-10 04:16:16,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 1451 transitions. [2022-01-10 04:16:16,346 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 1451 transitions. Word has length 271 [2022-01-10 04:16:16,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:16:16,346 INFO L470 AbstractCegarLoop]: Abstraction has 1332 states and 1451 transitions. [2022-01-10 04:16:16,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 38.57142857142857) internal successors, (270), 6 states have internal predecessors, (270), 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) [2022-01-10 04:16:16,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 1451 transitions. [2022-01-10 04:16:16,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2022-01-10 04:16:16,349 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:16:16,349 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:16:16,357 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-01-10 04:16:16,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:16:16,555 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:16:16,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:16:16,556 INFO L85 PathProgramCache]: Analyzing trace with hash 693576989, now seen corresponding path program 1 times [2022-01-10 04:16:16,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:16:16,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [751791512] [2022-01-10 04:16:16,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:16:16,564 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:16:16,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:16:16,565 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:16:16,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-01-10 04:16:16,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:16:16,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 04:16:16,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:16:17,078 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 04:16:17,079 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:16:17,079 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:16:17,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [751791512] [2022-01-10 04:16:17,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [751791512] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:16:17,079 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:16:17,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 04:16:17,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181707335] [2022-01-10 04:16:17,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:16:17,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 04:16:17,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:16:17,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 04:16:17,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 04:16:17,081 INFO L87 Difference]: Start difference. First operand 1332 states and 1451 transitions. Second operand has 4 states, 4 states have (on average 72.25) internal successors, (289), 4 states have internal predecessors, (289), 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) [2022-01-10 04:16:17,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:16:17,558 INFO L93 Difference]: Finished difference Result 2997 states and 3274 transitions. [2022-01-10 04:16:17,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 04:16:17,559 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 72.25) internal successors, (289), 4 states have internal predecessors, (289), 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 291 [2022-01-10 04:16:17,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:16:17,561 INFO L225 Difference]: With dead ends: 2997 [2022-01-10 04:16:17,561 INFO L226 Difference]: Without dead ends: 979 [2022-01-10 04:16:17,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 04:16:17,563 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 164 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 04:16:17,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 38 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 04:16:17,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2022-01-10 04:16:17,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 717. [2022-01-10 04:16:17,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 716 states have (on average 1.0460893854748603) internal successors, (749), 716 states have internal predecessors, (749), 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) [2022-01-10 04:16:17,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 749 transitions. [2022-01-10 04:16:17,572 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 749 transitions. Word has length 291 [2022-01-10 04:16:17,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:16:17,572 INFO L470 AbstractCegarLoop]: Abstraction has 717 states and 749 transitions. [2022-01-10 04:16:17,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 72.25) internal successors, (289), 4 states have internal predecessors, (289), 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) [2022-01-10 04:16:17,572 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 749 transitions. [2022-01-10 04:16:17,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-01-10 04:16:17,573 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:16:17,574 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:16:17,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-01-10 04:16:17,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:16:17,774 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:16:17,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:16:17,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1397654559, now seen corresponding path program 1 times [2022-01-10 04:16:17,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:16:17,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1685218306] [2022-01-10 04:16:17,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:16:17,776 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:16:17,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:16:17,777 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:16:17,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-01-10 04:16:17,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:16:17,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 16 conjunts are in the unsatisfiable core [2022-01-10 04:16:17,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:16:20,128 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 266 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-01-10 04:16:20,128 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:16:20,128 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:16:20,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1685218306] [2022-01-10 04:16:20,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1685218306] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:16:20,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:16:20,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 04:16:20,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600873808] [2022-01-10 04:16:20,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:16:20,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 04:16:20,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:16:20,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 04:16:20,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2022-01-10 04:16:20,130 INFO L87 Difference]: Start difference. First operand 717 states and 749 transitions. Second operand has 10 states, 10 states have (on average 23.6) internal successors, (236), 9 states have internal predecessors, (236), 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) [2022-01-10 04:16:20,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:16:20,542 INFO L93 Difference]: Finished difference Result 1698 states and 1771 transitions. [2022-01-10 04:16:20,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 04:16:20,542 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 23.6) internal successors, (236), 9 states have internal predecessors, (236), 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 293 [2022-01-10 04:16:20,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:16:20,545 INFO L225 Difference]: With dead ends: 1698 [2022-01-10 04:16:20,545 INFO L226 Difference]: Without dead ends: 994 [2022-01-10 04:16:20,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2022-01-10 04:16:20,546 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 255 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 04:16:20,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 55 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 04:16:20,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2022-01-10 04:16:20,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 857. [2022-01-10 04:16:20,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 857 states, 856 states have (on average 1.0397196261682242) internal successors, (890), 856 states have internal predecessors, (890), 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) [2022-01-10 04:16:20,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 890 transitions. [2022-01-10 04:16:20,555 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 890 transitions. Word has length 293 [2022-01-10 04:16:20,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:16:20,555 INFO L470 AbstractCegarLoop]: Abstraction has 857 states and 890 transitions. [2022-01-10 04:16:20,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 23.6) internal successors, (236), 9 states have internal predecessors, (236), 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) [2022-01-10 04:16:20,556 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 890 transitions. [2022-01-10 04:16:20,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-01-10 04:16:20,557 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:16:20,557 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:16:20,566 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-01-10 04:16:20,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:16:20,764 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:16:20,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:16:20,765 INFO L85 PathProgramCache]: Analyzing trace with hash -591222129, now seen corresponding path program 1 times [2022-01-10 04:16:20,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:16:20,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [937368689] [2022-01-10 04:16:20,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:16:20,766 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:16:20,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:16:20,767 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:16:20,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-01-10 04:16:20,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:16:20,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 04:16:20,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:16:21,872 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2022-01-10 04:16:21,872 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:16:21,872 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:16:21,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [937368689] [2022-01-10 04:16:21,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [937368689] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:16:21,872 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:16:21,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 04:16:21,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474502276] [2022-01-10 04:16:21,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:16:21,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 04:16:21,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:16:21,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 04:16:21,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 04:16:21,873 INFO L87 Difference]: Start difference. First operand 857 states and 890 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 4 states have internal predecessors, (191), 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) [2022-01-10 04:16:22,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:16:22,457 INFO L93 Difference]: Finished difference Result 1995 states and 2075 transitions. [2022-01-10 04:16:22,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 04:16:22,458 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 4 states have internal predecessors, (191), 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 302 [2022-01-10 04:16:22,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:16:22,463 INFO L225 Difference]: With dead ends: 1995 [2022-01-10 04:16:22,463 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 04:16:22,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 04:16:22,465 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 282 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 04:16:22,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 22 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 04:16:22,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 04:16:22,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 04:16:22,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-01-10 04:16:22,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 04:16:22,466 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 302 [2022-01-10 04:16:22,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:16:22,466 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 04:16:22,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 4 states have internal predecessors, (191), 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) [2022-01-10 04:16:22,467 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 04:16:22,467 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 04:16:22,469 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 04:16:22,479 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-01-10 04:16:22,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:16:22,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-10 04:16:24,886 INFO L858 garLoopResultBuilder]: For program point L564(line 564) no Hoare annotation was computed. [2022-01-10 04:16:24,886 INFO L858 garLoopResultBuilder]: For program point L531(line 531) no Hoare annotation was computed. [2022-01-10 04:16:24,887 INFO L858 garLoopResultBuilder]: For program point L498(line 498) no Hoare annotation was computed. [2022-01-10 04:16:24,887 INFO L858 garLoopResultBuilder]: For program point L465(line 465) no Hoare annotation was computed. [2022-01-10 04:16:24,887 INFO L858 garLoopResultBuilder]: For program point L432(line 432) no Hoare annotation was computed. [2022-01-10 04:16:24,887 INFO L858 garLoopResultBuilder]: For program point L102(lines 102 400) no Hoare annotation was computed. [2022-01-10 04:16:24,887 INFO L858 garLoopResultBuilder]: For program point L598(line 598) no Hoare annotation was computed. [2022-01-10 04:16:24,887 INFO L858 garLoopResultBuilder]: For program point L334(lines 334 400) no Hoare annotation was computed. [2022-01-10 04:16:24,887 INFO L858 garLoopResultBuilder]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,887 INFO L858 garLoopResultBuilder]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,887 INFO L858 garLoopResultBuilder]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,887 INFO L858 garLoopResultBuilder]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,887 INFO L858 garLoopResultBuilder]: For program point L401(lines 401 403) no Hoare annotation was computed. [2022-01-10 04:16:24,887 INFO L858 garLoopResultBuilder]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,887 INFO L858 garLoopResultBuilder]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,887 INFO L858 garLoopResultBuilder]: For program point L302(lines 302 400) no Hoare annotation was computed. [2022-01-10 04:16:24,887 INFO L858 garLoopResultBuilder]: For program point L170(lines 170 400) no Hoare annotation was computed. [2022-01-10 04:16:24,887 INFO L858 garLoopResultBuilder]: For program point L567(line 567) no Hoare annotation was computed. [2022-01-10 04:16:24,887 INFO L858 garLoopResultBuilder]: For program point L534(line 534) no Hoare annotation was computed. [2022-01-10 04:16:24,887 INFO L858 garLoopResultBuilder]: For program point L501(line 501) no Hoare annotation was computed. [2022-01-10 04:16:24,887 INFO L858 garLoopResultBuilder]: For program point L468(line 468) no Hoare annotation was computed. [2022-01-10 04:16:24,887 INFO L858 garLoopResultBuilder]: For program point L435(line 435) no Hoare annotation was computed. [2022-01-10 04:16:24,887 INFO L858 garLoopResultBuilder]: For program point L402(line 402) no Hoare annotation was computed. [2022-01-10 04:16:24,887 INFO L858 garLoopResultBuilder]: For program point L204(lines 204 400) no Hoare annotation was computed. [2022-01-10 04:16:24,887 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 400) no Hoare annotation was computed. [2022-01-10 04:16:24,888 INFO L858 garLoopResultBuilder]: For program point L271(lines 271 400) no Hoare annotation was computed. [2022-01-10 04:16:24,888 INFO L858 garLoopResultBuilder]: For program point L139(lines 139 400) no Hoare annotation was computed. [2022-01-10 04:16:24,888 INFO L858 garLoopResultBuilder]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,888 INFO L858 garLoopResultBuilder]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,888 INFO L858 garLoopResultBuilder]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,888 INFO L858 garLoopResultBuilder]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,888 INFO L858 garLoopResultBuilder]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,888 INFO L858 garLoopResultBuilder]: For program point L371(lines 371 400) no Hoare annotation was computed. [2022-01-10 04:16:24,888 INFO L858 garLoopResultBuilder]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,888 INFO L858 garLoopResultBuilder]: For program point L107(lines 107 400) no Hoare annotation was computed. [2022-01-10 04:16:24,888 INFO L858 garLoopResultBuilder]: For program point L41(lines 41 400) no Hoare annotation was computed. [2022-01-10 04:16:24,888 INFO L858 garLoopResultBuilder]: For program point L570(line 570) no Hoare annotation was computed. [2022-01-10 04:16:24,888 INFO L858 garLoopResultBuilder]: For program point L537(line 537) no Hoare annotation was computed. [2022-01-10 04:16:24,888 INFO L858 garLoopResultBuilder]: For program point L504(line 504) no Hoare annotation was computed. [2022-01-10 04:16:24,888 INFO L858 garLoopResultBuilder]: For program point L471(line 471) no Hoare annotation was computed. [2022-01-10 04:16:24,888 INFO L858 garLoopResultBuilder]: For program point L438(line 438) no Hoare annotation was computed. [2022-01-10 04:16:24,888 INFO L858 garLoopResultBuilder]: For program point L405(line 405) no Hoare annotation was computed. [2022-01-10 04:16:24,888 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 400) no Hoare annotation was computed. [2022-01-10 04:16:24,888 INFO L858 garLoopResultBuilder]: For program point L207(lines 207 400) no Hoare annotation was computed. [2022-01-10 04:16:24,888 INFO L858 garLoopResultBuilder]: For program point L75(lines 75 400) no Hoare annotation was computed. [2022-01-10 04:16:24,888 INFO L858 garLoopResultBuilder]: For program point L373(lines 373 400) no Hoare annotation was computed. [2022-01-10 04:16:24,888 INFO L858 garLoopResultBuilder]: For program point L241(lines 241 400) no Hoare annotation was computed. [2022-01-10 04:16:24,888 INFO L858 garLoopResultBuilder]: For program point L175(lines 175 400) no Hoare annotation was computed. [2022-01-10 04:16:24,888 INFO L858 garLoopResultBuilder]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,888 INFO L858 garLoopResultBuilder]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,889 INFO L858 garLoopResultBuilder]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,889 INFO L858 garLoopResultBuilder]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,889 INFO L858 garLoopResultBuilder]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,889 INFO L858 garLoopResultBuilder]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,889 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 400) no Hoare annotation was computed. [2022-01-10 04:16:24,889 INFO L858 garLoopResultBuilder]: For program point L573(line 573) no Hoare annotation was computed. [2022-01-10 04:16:24,889 INFO L858 garLoopResultBuilder]: For program point L540(line 540) no Hoare annotation was computed. [2022-01-10 04:16:24,889 INFO L858 garLoopResultBuilder]: For program point L507(line 507) no Hoare annotation was computed. [2022-01-10 04:16:24,889 INFO L858 garLoopResultBuilder]: For program point L474(line 474) no Hoare annotation was computed. [2022-01-10 04:16:24,889 INFO L858 garLoopResultBuilder]: For program point L441(line 441) no Hoare annotation was computed. [2022-01-10 04:16:24,889 INFO L858 garLoopResultBuilder]: For program point L408(line 408) no Hoare annotation was computed. [2022-01-10 04:16:24,889 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 400) no Hoare annotation was computed. [2022-01-10 04:16:24,889 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 400) no Hoare annotation was computed. [2022-01-10 04:16:24,889 INFO L858 garLoopResultBuilder]: For program point L45(lines 45 400) no Hoare annotation was computed. [2022-01-10 04:16:24,889 INFO L858 garLoopResultBuilder]: For program point L343(lines 343 400) no Hoare annotation was computed. [2022-01-10 04:16:24,889 INFO L858 garLoopResultBuilder]: For program point L112(lines 112 400) no Hoare annotation was computed. [2022-01-10 04:16:24,889 INFO L858 garLoopResultBuilder]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,889 INFO L858 garLoopResultBuilder]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,889 INFO L858 garLoopResultBuilder]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,889 INFO L858 garLoopResultBuilder]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,889 INFO L858 garLoopResultBuilder]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,889 INFO L858 garLoopResultBuilder]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,889 INFO L858 garLoopResultBuilder]: For program point L278(lines 278 400) no Hoare annotation was computed. [2022-01-10 04:16:24,889 INFO L858 garLoopResultBuilder]: For program point L146(lines 146 400) no Hoare annotation was computed. [2022-01-10 04:16:24,890 INFO L858 garLoopResultBuilder]: For program point L576(line 576) no Hoare annotation was computed. [2022-01-10 04:16:24,890 INFO L858 garLoopResultBuilder]: For program point L543(line 543) no Hoare annotation was computed. [2022-01-10 04:16:24,890 INFO L858 garLoopResultBuilder]: For program point L510(line 510) no Hoare annotation was computed. [2022-01-10 04:16:24,890 INFO L858 garLoopResultBuilder]: For program point L477(line 477) no Hoare annotation was computed. [2022-01-10 04:16:24,890 INFO L858 garLoopResultBuilder]: For program point L444(line 444) no Hoare annotation was computed. [2022-01-10 04:16:24,890 INFO L858 garLoopResultBuilder]: For program point L411(line 411) no Hoare annotation was computed. [2022-01-10 04:16:24,890 INFO L858 garLoopResultBuilder]: For program point L213(lines 213 400) no Hoare annotation was computed. [2022-01-10 04:16:24,890 INFO L858 garLoopResultBuilder]: For program point L82(lines 82 400) no Hoare annotation was computed. [2022-01-10 04:16:24,890 INFO L858 garLoopResultBuilder]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,890 INFO L858 garLoopResultBuilder]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,890 INFO L858 garLoopResultBuilder]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,890 INFO L858 garLoopResultBuilder]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,890 INFO L858 garLoopResultBuilder]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,890 INFO L858 garLoopResultBuilder]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,890 INFO L858 garLoopResultBuilder]: For program point L347(lines 347 400) no Hoare annotation was computed. [2022-01-10 04:16:24,890 INFO L858 garLoopResultBuilder]: For program point L248(lines 248 400) no Hoare annotation was computed. [2022-01-10 04:16:24,890 INFO L858 garLoopResultBuilder]: For program point L579(line 579) no Hoare annotation was computed. [2022-01-10 04:16:24,890 INFO L858 garLoopResultBuilder]: For program point L546(line 546) no Hoare annotation was computed. [2022-01-10 04:16:24,890 INFO L858 garLoopResultBuilder]: For program point L513(line 513) no Hoare annotation was computed. [2022-01-10 04:16:24,890 INFO L858 garLoopResultBuilder]: For program point L480(line 480) no Hoare annotation was computed. [2022-01-10 04:16:24,890 INFO L858 garLoopResultBuilder]: For program point L447(line 447) no Hoare annotation was computed. [2022-01-10 04:16:24,890 INFO L858 garLoopResultBuilder]: For program point L414(line 414) no Hoare annotation was computed. [2022-01-10 04:16:24,890 INFO L858 garLoopResultBuilder]: For program point L183(lines 183 400) no Hoare annotation was computed. [2022-01-10 04:16:24,890 INFO L858 garLoopResultBuilder]: For program point L150(lines 150 400) no Hoare annotation was computed. [2022-01-10 04:16:24,890 INFO L858 garLoopResultBuilder]: For program point L382(lines 382 400) no Hoare annotation was computed. [2022-01-10 04:16:24,890 INFO L858 garLoopResultBuilder]: For program point L316(lines 316 400) no Hoare annotation was computed. [2022-01-10 04:16:24,891 INFO L858 garLoopResultBuilder]: For program point L283(lines 283 400) no Hoare annotation was computed. [2022-01-10 04:16:24,891 INFO L858 garLoopResultBuilder]: For program point L118(lines 118 400) no Hoare annotation was computed. [2022-01-10 04:16:24,891 INFO L858 garLoopResultBuilder]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2022-01-10 04:16:24,891 INFO L858 garLoopResultBuilder]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,891 INFO L858 garLoopResultBuilder]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,891 INFO L858 garLoopResultBuilder]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,891 INFO L858 garLoopResultBuilder]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,891 INFO L858 garLoopResultBuilder]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,891 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-10 04:16:24,891 INFO L858 garLoopResultBuilder]: For program point L218(lines 218 400) no Hoare annotation was computed. [2022-01-10 04:16:24,891 INFO L858 garLoopResultBuilder]: For program point L53(lines 53 400) no Hoare annotation was computed. [2022-01-10 04:16:24,891 INFO L858 garLoopResultBuilder]: For program point L582(line 582) no Hoare annotation was computed. [2022-01-10 04:16:24,891 INFO L858 garLoopResultBuilder]: For program point L549(line 549) no Hoare annotation was computed. [2022-01-10 04:16:24,891 INFO L858 garLoopResultBuilder]: For program point L516(line 516) no Hoare annotation was computed. [2022-01-10 04:16:24,891 INFO L858 garLoopResultBuilder]: For program point L483(line 483) no Hoare annotation was computed. [2022-01-10 04:16:24,891 INFO L858 garLoopResultBuilder]: For program point L450(line 450) no Hoare annotation was computed. [2022-01-10 04:16:24,891 INFO L858 garLoopResultBuilder]: For program point L417(line 417) no Hoare annotation was computed. [2022-01-10 04:16:24,891 INFO L858 garLoopResultBuilder]: For program point L154(lines 154 400) no Hoare annotation was computed. [2022-01-10 04:16:24,892 INFO L854 garLoopResultBuilder]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse1 (= (_ bv8 32) ~a12~0)) (.cse6 (= (_ bv1 32) ~a21~0))) (let ((.cse5 (= (_ bv4 32) |ULTIMATE.start_calculate_output_~input#1|)) (.cse3 (= (_ bv1 32) ~a17~0)) (.cse2 (= ~a8~0 (_ bv15 32))) (.cse0 (= (_ bv1 32) ~a20~0)) (.cse4 (= ~a7~0 (_ bv0 32))) (.cse7 (or (not .cse1) (and (not (= (_ bv6 32) ~a16~0)) (not (= (_ bv5 32) ~a16~0))) (not .cse6))) (.cse9 (= ~a7~0 (_ bv1 32))) (.cse8 (= (_ bv0 32) ~a20~0))) (or (and .cse0 .cse1 .cse2 (not .cse3) .cse4 (not .cse5) .cse6) (and .cse0 .cse1 .cse4 (= ~a8~0 (_ bv13 32)) .cse6) (and .cse0 (or (= (_ bv1 32) |ULTIMATE.start_calculate_output_~input#1|) .cse5 (= (_ bv2 32) |ULTIMATE.start_calculate_output_~input#1|) (= (_ bv5 32) |ULTIMATE.start_calculate_output_~input#1|) (= (_ bv3 32) |ULTIMATE.start_calculate_output_~input#1|) (= (_ bv6 32) |ULTIMATE.start_calculate_output_~input#1|)) .cse2 .cse4 .cse7 .cse3) (and .cse1 .cse8 .cse4 .cse6) (and .cse1 .cse9 .cse7) (and .cse1 .cse9 .cse2) (and .cse0 .cse9 .cse6) (and .cse0 .cse1 .cse4 .cse7 .cse6) (and .cse1 .cse9 .cse8 (= (_ bv0 32) ~a17~0) (= (_ bv14 32) ~a8~0))))) [2022-01-10 04:16:24,892 INFO L858 garLoopResultBuilder]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,892 INFO L858 garLoopResultBuilder]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,892 INFO L858 garLoopResultBuilder]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,892 INFO L858 garLoopResultBuilder]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,892 INFO L858 garLoopResultBuilder]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,892 INFO L858 garLoopResultBuilder]: For program point L188(lines 188 400) no Hoare annotation was computed. [2022-01-10 04:16:24,892 INFO L858 garLoopResultBuilder]: For program point L552(line 552) no Hoare annotation was computed. [2022-01-10 04:16:24,892 INFO L858 garLoopResultBuilder]: For program point L519(line 519) no Hoare annotation was computed. [2022-01-10 04:16:24,892 INFO L858 garLoopResultBuilder]: For program point L486(line 486) no Hoare annotation was computed. [2022-01-10 04:16:24,892 INFO L858 garLoopResultBuilder]: For program point L453(line 453) no Hoare annotation was computed. [2022-01-10 04:16:24,892 INFO L858 garLoopResultBuilder]: For program point L420(line 420) no Hoare annotation was computed. [2022-01-10 04:16:24,892 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 400) no Hoare annotation was computed. [2022-01-10 04:16:24,892 INFO L858 garLoopResultBuilder]: For program point L288(lines 288 400) no Hoare annotation was computed. [2022-01-10 04:16:24,892 INFO L858 garLoopResultBuilder]: For program point L255(lines 255 400) no Hoare annotation was computed. [2022-01-10 04:16:24,892 INFO L858 garLoopResultBuilder]: For program point L90(lines 90 400) no Hoare annotation was computed. [2022-01-10 04:16:24,892 INFO L858 garLoopResultBuilder]: For program point L355(lines 355 400) no Hoare annotation was computed. [2022-01-10 04:16:24,892 INFO L858 garLoopResultBuilder]: For program point L322(lines 322 400) no Hoare annotation was computed. [2022-01-10 04:16:24,892 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-10 04:16:24,892 INFO L858 garLoopResultBuilder]: For program point L124(lines 124 400) no Hoare annotation was computed. [2022-01-10 04:16:24,892 INFO L861 garLoopResultBuilder]: At program point L587(lines 587 604) the Hoare annotation is: true [2022-01-10 04:16:24,892 INFO L858 garLoopResultBuilder]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,892 INFO L858 garLoopResultBuilder]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,892 INFO L858 garLoopResultBuilder]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,893 INFO L858 garLoopResultBuilder]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,893 INFO L858 garLoopResultBuilder]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,893 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 400) no Hoare annotation was computed. [2022-01-10 04:16:24,893 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 400) no Hoare annotation was computed. [2022-01-10 04:16:24,893 INFO L858 garLoopResultBuilder]: For program point L59(lines 59 400) no Hoare annotation was computed. [2022-01-10 04:16:24,893 INFO L858 garLoopResultBuilder]: For program point L555(line 555) no Hoare annotation was computed. [2022-01-10 04:16:24,893 INFO L858 garLoopResultBuilder]: For program point L522(line 522) no Hoare annotation was computed. [2022-01-10 04:16:24,893 INFO L858 garLoopResultBuilder]: For program point L489(line 489) no Hoare annotation was computed. [2022-01-10 04:16:24,893 INFO L858 garLoopResultBuilder]: For program point L456(line 456) no Hoare annotation was computed. [2022-01-10 04:16:24,893 INFO L858 garLoopResultBuilder]: For program point L423(line 423) no Hoare annotation was computed. [2022-01-10 04:16:24,893 INFO L858 garLoopResultBuilder]: For program point L94(lines 94 400) no Hoare annotation was computed. [2022-01-10 04:16:24,893 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-10 04:16:24,893 INFO L858 garLoopResultBuilder]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,893 INFO L858 garLoopResultBuilder]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,893 INFO L858 garLoopResultBuilder]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,893 INFO L858 garLoopResultBuilder]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,893 INFO L858 garLoopResultBuilder]: For program point L392(lines 392 400) no Hoare annotation was computed. [2022-01-10 04:16:24,893 INFO L858 garLoopResultBuilder]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,893 INFO L858 garLoopResultBuilder]: For program point L326(lines 326 400) no Hoare annotation was computed. [2022-01-10 04:16:24,893 INFO L858 garLoopResultBuilder]: For program point L260(lines 260 400) no Hoare annotation was computed. [2022-01-10 04:16:24,893 INFO L858 garLoopResultBuilder]: For program point L558(line 558) no Hoare annotation was computed. [2022-01-10 04:16:24,893 INFO L858 garLoopResultBuilder]: For program point L525(line 525) no Hoare annotation was computed. [2022-01-10 04:16:24,893 INFO L858 garLoopResultBuilder]: For program point L492(line 492) no Hoare annotation was computed. [2022-01-10 04:16:24,893 INFO L858 garLoopResultBuilder]: For program point L459(line 459) no Hoare annotation was computed. [2022-01-10 04:16:24,893 INFO L858 garLoopResultBuilder]: For program point L426(line 426) no Hoare annotation was computed. [2022-01-10 04:16:24,893 INFO L858 garLoopResultBuilder]: For program point L228(lines 228 400) no Hoare annotation was computed. [2022-01-10 04:16:24,894 INFO L858 garLoopResultBuilder]: For program point L162(lines 162 400) no Hoare annotation was computed. [2022-01-10 04:16:24,894 INFO L858 garLoopResultBuilder]: For program point L129(lines 129 400) no Hoare annotation was computed. [2022-01-10 04:16:24,894 INFO L858 garLoopResultBuilder]: For program point L328(lines 328 400) no Hoare annotation was computed. [2022-01-10 04:16:24,894 INFO L858 garLoopResultBuilder]: For program point L196(lines 196 400) no Hoare annotation was computed. [2022-01-10 04:16:24,894 INFO L858 garLoopResultBuilder]: For program point L64(lines 64 400) no Hoare annotation was computed. [2022-01-10 04:16:24,894 INFO L858 garLoopResultBuilder]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,894 INFO L854 garLoopResultBuilder]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse1 (= (_ bv8 32) ~a12~0)) (.cse3 (= (_ bv1 32) ~a21~0))) (let ((.cse6 (= (_ bv4 32) |ULTIMATE.start_calculate_output_~input#1|)) (.cse5 (= ~a8~0 (_ bv15 32))) (.cse0 (= (_ bv1 32) ~a20~0)) (.cse2 (= ~a7~0 (_ bv0 32))) (.cse8 (or (not .cse1) (and (not (= (_ bv6 32) ~a16~0)) (not (= (_ bv5 32) ~a16~0))) (not .cse3))) (.cse7 (= ~a7~0 (_ bv1 32))) (.cse4 (= (_ bv0 32) ~a20~0))) (or (and .cse0 .cse1 .cse2 (= ~a8~0 (_ bv13 32)) .cse3) (and .cse1 .cse4 .cse2 .cse3) (and .cse0 .cse1 .cse5 .cse2 (not .cse6) .cse3) (and .cse1 .cse7 .cse8) (and .cse1 .cse7 .cse5) (and .cse0 (or (= (_ bv1 32) |ULTIMATE.start_calculate_output_~input#1|) .cse6 (= (_ bv2 32) |ULTIMATE.start_calculate_output_~input#1|) (= (_ bv5 32) |ULTIMATE.start_calculate_output_~input#1|) (= (_ bv3 32) |ULTIMATE.start_calculate_output_~input#1|) (= (_ bv6 32) |ULTIMATE.start_calculate_output_~input#1|)) .cse5 .cse2 (= (_ bv1 32) ~a17~0)) (and .cse0 .cse7 .cse3) (and .cse0 .cse1 .cse2 .cse8 .cse3) (and .cse1 .cse7 .cse4 (= (_ bv0 32) ~a17~0) (= (_ bv14 32) ~a8~0))))) [2022-01-10 04:16:24,894 INFO L858 garLoopResultBuilder]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,894 INFO L858 garLoopResultBuilder]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,894 INFO L858 garLoopResultBuilder]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,894 INFO L858 garLoopResultBuilder]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,894 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 400) no Hoare annotation was computed. [2022-01-10 04:16:24,894 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-10 04:16:24,894 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 540) no Hoare annotation was computed. [2022-01-10 04:16:24,894 INFO L858 garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed. [2022-01-10 04:16:24,894 INFO L858 garLoopResultBuilder]: For program point L528(line 528) no Hoare annotation was computed. [2022-01-10 04:16:24,894 INFO L858 garLoopResultBuilder]: For program point L495(line 495) no Hoare annotation was computed. [2022-01-10 04:16:24,894 INFO L858 garLoopResultBuilder]: For program point L462(line 462) no Hoare annotation was computed. [2022-01-10 04:16:24,894 INFO L858 garLoopResultBuilder]: For program point L429(line 429) no Hoare annotation was computed. [2022-01-10 04:16:24,894 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 400) no Hoare annotation was computed. [2022-01-10 04:16:24,894 INFO L858 garLoopResultBuilder]: For program point L199(lines 199 400) no Hoare annotation was computed. [2022-01-10 04:16:24,895 INFO L858 garLoopResultBuilder]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,895 INFO L858 garLoopResultBuilder]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,895 INFO L858 garLoopResultBuilder]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,895 INFO L858 garLoopResultBuilder]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,895 INFO L858 garLoopResultBuilder]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2022-01-10 04:16:24,895 INFO L858 garLoopResultBuilder]: For program point L365(lines 365 400) no Hoare annotation was computed. [2022-01-10 04:16:24,895 INFO L858 garLoopResultBuilder]: For program point L266(lines 266 400) no Hoare annotation was computed. [2022-01-10 04:16:24,895 INFO L858 garLoopResultBuilder]: For program point L233(lines 233 400) no Hoare annotation was computed. [2022-01-10 04:16:24,895 INFO L858 garLoopResultBuilder]: For program point L134(lines 134 400) no Hoare annotation was computed. [2022-01-10 04:16:24,897 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:16:24,898 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 04:16:24,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 04:16:24 BoogieIcfgContainer [2022-01-10 04:16:24,936 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 04:16:24,937 INFO L158 Benchmark]: Toolchain (without parser) took 51355.76ms. Allocated memory was 198.2MB in the beginning and 631.2MB in the end (delta: 433.1MB). Free memory was 145.8MB in the beginning and 276.7MB in the end (delta: -130.9MB). Peak memory consumption was 357.9MB. Max. memory is 8.0GB. [2022-01-10 04:16:24,937 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 198.2MB. Free memory is still 164.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 04:16:24,937 INFO L158 Benchmark]: CACSL2BoogieTranslator took 417.36ms. Allocated memory is still 198.2MB. Free memory was 145.6MB in the beginning and 156.1MB in the end (delta: -10.5MB). Peak memory consumption was 14.9MB. Max. memory is 8.0GB. [2022-01-10 04:16:24,937 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.12ms. Allocated memory is still 198.2MB. Free memory was 156.1MB in the beginning and 150.0MB in the end (delta: 6.1MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-01-10 04:16:24,937 INFO L158 Benchmark]: Boogie Preprocessor took 46.55ms. Allocated memory is still 198.2MB. Free memory was 150.0MB in the beginning and 145.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-01-10 04:16:24,938 INFO L158 Benchmark]: RCFGBuilder took 957.42ms. Allocated memory is still 198.2MB. Free memory was 145.8MB in the beginning and 86.1MB in the end (delta: 59.8MB). Peak memory consumption was 59.8MB. Max. memory is 8.0GB. [2022-01-10 04:16:24,938 INFO L158 Benchmark]: TraceAbstraction took 49864.53ms. Allocated memory was 198.2MB in the beginning and 631.2MB in the end (delta: 433.1MB). Free memory was 85.5MB in the beginning and 276.7MB in the end (delta: -191.2MB). Peak memory consumption was 296.9MB. Max. memory is 8.0GB. [2022-01-10 04:16:24,939 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 198.2MB. Free memory is still 164.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 417.36ms. Allocated memory is still 198.2MB. Free memory was 145.6MB in the beginning and 156.1MB in the end (delta: -10.5MB). Peak memory consumption was 14.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 64.12ms. Allocated memory is still 198.2MB. Free memory was 156.1MB in the beginning and 150.0MB in the end (delta: 6.1MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 46.55ms. Allocated memory is still 198.2MB. Free memory was 150.0MB in the beginning and 145.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 957.42ms. Allocated memory is still 198.2MB. Free memory was 145.8MB in the beginning and 86.1MB in the end (delta: 59.8MB). Peak memory consumption was 59.8MB. Max. memory is 8.0GB. * TraceAbstraction took 49864.53ms. Allocated memory was 198.2MB in the beginning and 631.2MB in the end (delta: 433.1MB). Free memory was 85.5MB in the beginning and 276.7MB in the end (delta: -191.2MB). Peak memory consumption was 296.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 540]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 198 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 49.8s, OverallIterations: 13, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 12.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5540 SdHoareTripleChecker+Valid, 10.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5540 mSDsluCounter, 1175 SdHoareTripleChecker+Invalid, 8.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 355 mSDsCounter, 1085 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13077 IncrementalHoareTripleChecker+Invalid, 14162 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1085 mSolverCounterUnsat, 820 mSDtfsCounter, 13077 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3456 GetRequests, 3351 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1437occurred in iteration=4, InterpolantAutomatonStates: 112, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 2784 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 56 NumberOfFragments, 371 HoareAnnotationTreeSize, 3 FomulaSimplifications, 6507 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 3 FomulaSimplificationsInter, 27407 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 31.4s InterpolantComputationTime, 2916 NumberOfCodeBlocks, 2916 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 3437 ConstructedInterpolants, 0 QuantifiedInterpolants, 41063 SizeOfPredicates, 42 NumberOfNonLiveVariables, 3869 ConjunctsInSsa, 139 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 2627/2939 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: (((((((((((1bv32 == a20 && 8bv32 == a12) && a7 == 0bv32) && a8 == 13bv32) && 1bv32 == a21) || (((8bv32 == a12 && 0bv32 == a20) && a7 == 0bv32) && 1bv32 == a21)) || (((((1bv32 == a20 && 8bv32 == a12) && a8 == 15bv32) && a7 == 0bv32) && !(4bv32 == input)) && 1bv32 == a21)) || ((8bv32 == a12 && a7 == 1bv32) && ((!(8bv32 == a12) || (!(6bv32 == a16) && !(5bv32 == a16))) || !(1bv32 == a21)))) || ((8bv32 == a12 && a7 == 1bv32) && a8 == 15bv32)) || ((((1bv32 == a20 && (((((1bv32 == input || 4bv32 == input) || 2bv32 == input) || 5bv32 == input) || 3bv32 == input) || 6bv32 == input)) && a8 == 15bv32) && a7 == 0bv32) && 1bv32 == a17)) || ((1bv32 == a20 && a7 == 1bv32) && 1bv32 == a21)) || ((((1bv32 == a20 && 8bv32 == a12) && a7 == 0bv32) && ((!(8bv32 == a12) || (!(6bv32 == a16) && !(5bv32 == a16))) || !(1bv32 == a21))) && 1bv32 == a21)) || ((((8bv32 == a12 && a7 == 1bv32) && 0bv32 == a20) && 0bv32 == a17) && 14bv32 == a8) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (((((((((((((1bv32 == a20 && 8bv32 == a12) && a8 == 15bv32) && !(1bv32 == a17)) && a7 == 0bv32) && !(4bv32 == input)) && 1bv32 == a21) || ((((1bv32 == a20 && 8bv32 == a12) && a7 == 0bv32) && a8 == 13bv32) && 1bv32 == a21)) || (((((1bv32 == a20 && (((((1bv32 == input || 4bv32 == input) || 2bv32 == input) || 5bv32 == input) || 3bv32 == input) || 6bv32 == input)) && a8 == 15bv32) && a7 == 0bv32) && ((!(8bv32 == a12) || (!(6bv32 == a16) && !(5bv32 == a16))) || !(1bv32 == a21))) && 1bv32 == a17)) || (((8bv32 == a12 && 0bv32 == a20) && a7 == 0bv32) && 1bv32 == a21)) || ((8bv32 == a12 && a7 == 1bv32) && ((!(8bv32 == a12) || (!(6bv32 == a16) && !(5bv32 == a16))) || !(1bv32 == a21)))) || ((8bv32 == a12 && a7 == 1bv32) && a8 == 15bv32)) || ((1bv32 == a20 && a7 == 1bv32) && 1bv32 == a21)) || ((((1bv32 == a20 && 8bv32 == a12) && a7 == 0bv32) && ((!(8bv32 == a12) || (!(6bv32 == a16) && !(5bv32 == a16))) || !(1bv32 == a21))) && 1bv32 == a21)) || ((((8bv32 == a12 && a7 == 1bv32) && 0bv32 == a20) && 0bv32 == a17) && 14bv32 == a8) RESULT: Ultimate proved your program to be correct! [2022-01-10 04:16:24,978 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...