/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/ldv-regression/rule57_ebda_blast.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 06:02:16,772 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 06:02:16,774 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 06:02:16,818 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 06:02:16,868 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 06:02:16,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 06:02:16,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 06:02:16,870 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 06:02:16,893 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 06:02:16,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 06:02:16,894 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 06:02:16,894 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 06:02:16,895 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 06:02:16,895 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 06:02:16,895 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 06:02:16,895 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 06:02:16,896 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 06:02:16,896 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 06:02:16,896 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 06:02:16,897 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 06:02:16,897 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 06:02:16,897 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 06:02:16,897 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 06:02:16,897 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 06:02:16,897 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 06:02:16,897 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 06:02:16,897 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 06:02:16,897 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 06:02:16,898 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 06:02:16,898 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 06:02:16,898 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 06:02:16,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:02:16,899 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 06:02:16,899 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 06:02:16,899 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 06:02:16,899 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 06:02:16,899 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 06:02:16,900 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 06:02:16,900 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 06:02:16,900 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 06:02:16,900 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 06:02:16,900 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 06:02:17,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 06:02:17,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 06:02:17,113 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 06:02:17,114 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 06:02:17,115 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 06:02:17,116 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule57_ebda_blast.i [2022-01-10 06:02:17,171 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/237ec28a3/e145ffc44d614da1b257ffafc66e02d3/FLAG40b26304f [2022-01-10 06:02:17,503 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 06:02:17,503 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/rule57_ebda_blast.i [2022-01-10 06:02:17,511 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/237ec28a3/e145ffc44d614da1b257ffafc66e02d3/FLAG40b26304f [2022-01-10 06:02:17,524 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/237ec28a3/e145ffc44d614da1b257ffafc66e02d3 [2022-01-10 06:02:17,526 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 06:02:17,527 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 06:02:17,530 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 06:02:17,530 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 06:02:17,532 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 06:02:17,532 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:02:17" (1/1) ... [2022-01-10 06:02:17,533 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d9789a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:17, skipping insertion in model container [2022-01-10 06:02:17,533 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:02:17" (1/1) ... [2022-01-10 06:02:17,546 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 06:02:17,563 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:02:17,707 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/rule57_ebda_blast.i[299,312] [2022-01-10 06:02:17,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:02:17,760 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 06:02:17,769 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/rule57_ebda_blast.i[299,312] [2022-01-10 06:02:17,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:02:17,802 INFO L208 MainTranslator]: Completed translation [2022-01-10 06:02:17,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:17 WrapperNode [2022-01-10 06:02:17,802 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 06:02:17,806 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 06:02:17,806 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 06:02:17,806 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 06:02:17,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:17" (1/1) ... [2022-01-10 06:02:17,827 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:17" (1/1) ... [2022-01-10 06:02:17,849 INFO L137 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 98 [2022-01-10 06:02:17,850 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 06:02:17,851 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 06:02:17,851 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 06:02:17,851 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 06:02:17,856 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:17" (1/1) ... [2022-01-10 06:02:17,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:17" (1/1) ... [2022-01-10 06:02:17,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:17" (1/1) ... [2022-01-10 06:02:17,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:17" (1/1) ... [2022-01-10 06:02:17,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:17" (1/1) ... [2022-01-10 06:02:17,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:17" (1/1) ... [2022-01-10 06:02:17,884 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:17" (1/1) ... [2022-01-10 06:02:17,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 06:02:17,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 06:02:17,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 06:02:17,886 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 06:02:17,891 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:17" (1/1) ... [2022-01-10 06:02:17,896 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:02:17,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 06:02:17,914 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 06:02:17,927 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 06:02:17,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 06:02:17,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 06:02:17,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-10 06:02:17,937 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-01-10 06:02:17,937 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-01-10 06:02:17,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-10 06:02:17,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-10 06:02:17,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 06:02:17,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 06:02:17,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-10 06:02:18,026 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 06:02:18,027 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 06:02:18,252 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 06:02:18,256 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 06:02:18,256 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-10 06:02:18,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:02:18 BoogieIcfgContainer [2022-01-10 06:02:18,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 06:02:18,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 06:02:18,259 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 06:02:18,261 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 06:02:18,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:02:17" (1/3) ... [2022-01-10 06:02:18,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fce7983 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:02:18, skipping insertion in model container [2022-01-10 06:02:18,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:17" (2/3) ... [2022-01-10 06:02:18,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fce7983 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:02:18, skipping insertion in model container [2022-01-10 06:02:18,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:02:18" (3/3) ... [2022-01-10 06:02:18,263 INFO L111 eAbstractionObserver]: Analyzing ICFG rule57_ebda_blast.i [2022-01-10 06:02:18,269 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 06:02:18,269 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 06:02:18,310 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 06:02:18,317 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 06:02:18,317 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 06:02:18,333 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-10 06:02:18,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-10 06:02:18,336 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:02:18,337 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:02:18,337 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:02:18,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:02:18,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1771505697, now seen corresponding path program 1 times [2022-01-10 06:02:18,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:02:18,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [571800440] [2022-01-10 06:02:18,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:02:18,351 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:02:18,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:02:18,353 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 06:02:18,354 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 06:02:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:02:18,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjunts are in the unsatisfiable core [2022-01-10 06:02:18,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:02:18,575 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 06:02:18,575 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:02:18,576 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:02:18,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [571800440] [2022-01-10 06:02:18,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [571800440] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:02:18,576 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:02:18,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 06:02:18,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198980865] [2022-01-10 06:02:18,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:02:18,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 06:02:18,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:02:18,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 06:02:18,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 06:02:18,601 INFO L87 Difference]: Start difference. First operand has 34 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-10 06:02:18,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:02:18,679 INFO L93 Difference]: Finished difference Result 70 states and 93 transitions. [2022-01-10 06:02:18,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:02:18,685 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-01-10 06:02:18,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:02:18,690 INFO L225 Difference]: With dead ends: 70 [2022-01-10 06:02:18,690 INFO L226 Difference]: Without dead ends: 36 [2022-01-10 06:02:18,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:02:18,694 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 4 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:02:18,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 110 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:02:18,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-01-10 06:02:18,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-01-10 06:02:18,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 30 states have internal predecessors, (38), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-10 06:02:18,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2022-01-10 06:02:18,720 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 15 [2022-01-10 06:02:18,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:02:18,720 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2022-01-10 06:02:18,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-10 06:02:18,721 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2022-01-10 06:02:18,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-01-10 06:02:18,722 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:02:18,722 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:02:18,728 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-01-10 06:02:18,928 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 06:02:18,928 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:02:18,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:02:18,929 INFO L85 PathProgramCache]: Analyzing trace with hash -678680289, now seen corresponding path program 1 times [2022-01-10 06:02:18,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:02:18,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [368019927] [2022-01-10 06:02:18,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:02:18,930 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:02:18,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:02:18,931 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 06:02:18,933 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 06:02:19,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:02:19,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 06:02:19,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:02:19,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:02:19,096 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:02:19,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:02:19,252 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:02:19,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [368019927] [2022-01-10 06:02:19,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [368019927] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 06:02:19,253 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 06:02:19,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-01-10 06:02:19,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142229262] [2022-01-10 06:02:19,253 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 06:02:19,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 06:02:19,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:02:19,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 06:02:19,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 06:02:19,255 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-01-10 06:02:19,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:02:19,456 INFO L93 Difference]: Finished difference Result 81 states and 102 transitions. [2022-01-10 06:02:19,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 06:02:19,458 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2022-01-10 06:02:19,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:02:19,458 INFO L225 Difference]: With dead ends: 81 [2022-01-10 06:02:19,459 INFO L226 Difference]: Without dead ends: 45 [2022-01-10 06:02:19,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-01-10 06:02:19,460 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 17 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 06:02:19,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 159 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 06:02:19,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-01-10 06:02:19,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-01-10 06:02:19,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 38 states have internal predecessors, (49), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-10 06:02:19,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 55 transitions. [2022-01-10 06:02:19,465 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 55 transitions. Word has length 16 [2022-01-10 06:02:19,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:02:19,466 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 55 transitions. [2022-01-10 06:02:19,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-01-10 06:02:19,466 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions. [2022-01-10 06:02:19,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-10 06:02:19,467 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:02:19,467 INFO L514 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:02:19,476 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 06:02:19,674 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 06:02:19,675 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:02:19,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:02:19,676 INFO L85 PathProgramCache]: Analyzing trace with hash -311688865, now seen corresponding path program 2 times [2022-01-10 06:02:19,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:02:19,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1488917502] [2022-01-10 06:02:19,676 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-10 06:02:19,676 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:02:19,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:02:19,677 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 06:02:19,687 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 06:02:19,728 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-01-10 06:02:19,729 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 06:02:19,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjunts are in the unsatisfiable core [2022-01-10 06:02:19,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:02:19,790 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-01-10 06:02:19,790 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:02:19,790 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:02:19,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1488917502] [2022-01-10 06:02:19,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1488917502] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:02:19,791 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:02:19,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 06:02:19,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747343242] [2022-01-10 06:02:19,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:02:19,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 06:02:19,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:02:19,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 06:02:19,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:02:19,792 INFO L87 Difference]: Start difference. First operand 45 states and 55 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-10 06:02:19,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:02:19,860 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2022-01-10 06:02:19,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 06:02:19,860 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-01-10 06:02:19,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:02:19,861 INFO L225 Difference]: With dead ends: 51 [2022-01-10 06:02:19,861 INFO L226 Difference]: Without dead ends: 45 [2022-01-10 06:02:19,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-10 06:02:19,862 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 25 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 06:02:19,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 126 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 06:02:19,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-01-10 06:02:19,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-01-10 06:02:19,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 38 states have (on average 1.263157894736842) internal successors, (48), 38 states have internal predecessors, (48), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-10 06:02:19,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 54 transitions. [2022-01-10 06:02:19,868 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 54 transitions. Word has length 18 [2022-01-10 06:02:19,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:02:19,868 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 54 transitions. [2022-01-10 06:02:19,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-10 06:02:19,868 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 54 transitions. [2022-01-10 06:02:19,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-01-10 06:02:19,869 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:02:19,869 INFO L514 BasicCegarLoop]: trace histogram [5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:02:19,879 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 06:02:20,075 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 06:02:20,076 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:02:20,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:02:20,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1572462144, now seen corresponding path program 1 times [2022-01-10 06:02:20,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:02:20,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [30050162] [2022-01-10 06:02:20,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:02:20,077 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:02:20,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:02:20,078 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 06:02:20,079 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 06:02:20,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:02:20,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-10 06:02:20,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:02:20,293 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-10 06:02:20,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:02:20,507 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-10 06:02:20,507 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:02:20,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [30050162] [2022-01-10 06:02:20,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [30050162] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 06:02:20,510 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 06:02:20,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-01-10 06:02:20,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457075003] [2022-01-10 06:02:20,510 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 06:02:20,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 06:02:20,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:02:20,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 06:02:20,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-01-10 06:02:20,511 INFO L87 Difference]: Start difference. First operand 45 states and 54 transitions. Second operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-01-10 06:02:20,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:02:20,940 INFO L93 Difference]: Finished difference Result 79 states and 96 transitions. [2022-01-10 06:02:20,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 06:02:20,941 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2022-01-10 06:02:20,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:02:20,941 INFO L225 Difference]: With dead ends: 79 [2022-01-10 06:02:20,942 INFO L226 Difference]: Without dead ends: 49 [2022-01-10 06:02:20,942 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=102, Invalid=170, Unknown=0, NotChecked=0, Total=272 [2022-01-10 06:02:20,943 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 29 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 06:02:20,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 213 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 06:02:20,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-01-10 06:02:20,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-01-10 06:02:20,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 42 states have (on average 1.2142857142857142) internal successors, (51), 42 states have internal predecessors, (51), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-10 06:02:20,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 57 transitions. [2022-01-10 06:02:20,955 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 57 transitions. Word has length 28 [2022-01-10 06:02:20,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:02:20,955 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 57 transitions. [2022-01-10 06:02:20,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-01-10 06:02:20,956 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 57 transitions. [2022-01-10 06:02:20,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-10 06:02:20,956 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:02:20,956 INFO L514 BasicCegarLoop]: trace histogram [9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:02:20,967 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 06:02:21,164 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 06:02:21,165 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:02:21,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:02:21,165 INFO L85 PathProgramCache]: Analyzing trace with hash 690791744, now seen corresponding path program 2 times [2022-01-10 06:02:21,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:02:21,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [27784993] [2022-01-10 06:02:21,166 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-10 06:02:21,166 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:02:21,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:02:21,167 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 06:02:21,169 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 06:02:21,230 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-01-10 06:02:21,231 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 06:02:21,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjunts are in the unsatisfiable core [2022-01-10 06:02:21,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:02:21,312 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-01-10 06:02:21,312 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:02:21,312 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:02:21,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [27784993] [2022-01-10 06:02:21,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [27784993] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:02:21,314 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:02:21,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 06:02:21,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340347646] [2022-01-10 06:02:21,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:02:21,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 06:02:21,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:02:21,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 06:02:21,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:02:21,316 INFO L87 Difference]: Start difference. First operand 49 states and 57 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-01-10 06:02:21,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:02:21,424 INFO L93 Difference]: Finished difference Result 58 states and 64 transitions. [2022-01-10 06:02:21,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 06:02:21,425 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2022-01-10 06:02:21,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:02:21,426 INFO L225 Difference]: With dead ends: 58 [2022-01-10 06:02:21,426 INFO L226 Difference]: Without dead ends: 49 [2022-01-10 06:02:21,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-01-10 06:02:21,426 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 27 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 06:02:21,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 132 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 06:02:21,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-01-10 06:02:21,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-01-10 06:02:21,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 42 states have (on average 1.1428571428571428) internal successors, (48), 42 states have internal predecessors, (48), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-10 06:02:21,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2022-01-10 06:02:21,432 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 32 [2022-01-10 06:02:21,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:02:21,432 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2022-01-10 06:02:21,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-01-10 06:02:21,432 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2022-01-10 06:02:21,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-10 06:02:21,433 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:02:21,433 INFO L514 BasicCegarLoop]: trace histogram [9, 3, 3, 3, 3, 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 06:02:21,443 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-01-10 06:02:21,643 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 06:02:21,643 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:02:21,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:02:21,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1119293012, now seen corresponding path program 1 times [2022-01-10 06:02:21,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:02:21,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1942887934] [2022-01-10 06:02:21,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:02:21,644 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:02:21,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:02:21,645 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 06:02:21,646 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 06:02:21,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:02:21,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 06:02:21,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:02:21,878 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-01-10 06:02:21,878 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:02:21,878 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:02:21,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1942887934] [2022-01-10 06:02:21,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1942887934] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:02:21,879 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:02:21,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 06:02:21,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54735927] [2022-01-10 06:02:21,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:02:21,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 06:02:21,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:02:21,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 06:02:21,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 06:02:21,880 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-01-10 06:02:21,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:02:21,975 INFO L93 Difference]: Finished difference Result 58 states and 63 transitions. [2022-01-10 06:02:21,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 06:02:21,981 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 44 [2022-01-10 06:02:21,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:02:21,982 INFO L225 Difference]: With dead ends: 58 [2022-01-10 06:02:21,982 INFO L226 Difference]: Without dead ends: 49 [2022-01-10 06:02:21,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 06:02:21,983 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 19 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 06:02:21,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 162 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 06:02:21,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-01-10 06:02:21,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-01-10 06:02:21,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 42 states have (on average 1.119047619047619) internal successors, (47), 42 states have internal predecessors, (47), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-10 06:02:21,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2022-01-10 06:02:21,988 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 44 [2022-01-10 06:02:21,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:02:21,988 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2022-01-10 06:02:21,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-01-10 06:02:21,988 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2022-01-10 06:02:21,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-10 06:02:21,989 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:02:21,989 INFO L514 BasicCegarLoop]: trace histogram [9, 3, 3, 3, 3, 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 06:02:22,000 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 06:02:22,189 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 06:02:22,190 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:02:22,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:02:22,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1539851981, now seen corresponding path program 1 times [2022-01-10 06:02:22,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:02:22,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [522499574] [2022-01-10 06:02:22,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:02:22,191 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:02:22,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:02:22,192 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 06:02:22,193 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 06:02:22,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:02:22,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:02:22,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:02:22,442 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-01-10 06:02:22,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:02:22,443 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:02:22,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [522499574] [2022-01-10 06:02:22,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [522499574] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:02:22,443 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:02:22,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:02:22,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440617870] [2022-01-10 06:02:22,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:02:22,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:02:22,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:02:22,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:02:22,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:02:22,444 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-01-10 06:02:22,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:02:22,460 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2022-01-10 06:02:22,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:02:22,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 44 [2022-01-10 06:02:22,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:02:22,462 INFO L225 Difference]: With dead ends: 49 [2022-01-10 06:02:22,462 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 06:02:22,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 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 06:02:22,463 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 7 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:02:22,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 49 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:02:22,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 06:02:22,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 06:02:22,464 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 06:02:22,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 06:02:22,464 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2022-01-10 06:02:22,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:02:22,464 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 06:02:22,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-01-10 06:02:22,464 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 06:02:22,464 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 06:02:22,466 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 06:02:22,491 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 06:02:22,676 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 06:02:22,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-10 06:02:22,836 INFO L854 garLoopResultBuilder]: At program point L-1-1(line -1) the Hoare annotation is: (and (let ((.cse0 ((_ sign_extend 32) |kzalloc_#in~size#1|))) (or (= (_ bv0 64) ~tmp_slot~0.base) (and (= |kzalloc_#Ultimate.meminit_#t~loopctr16#1| (_ bv0 64)) (= .cse0 |kzalloc_#Ultimate.meminit_#product#1|)) (bvult (_ bv0 64) .cse0))) (not (= (_ bv0 64) |kzalloc_#t~malloc4#1.base|))) [2022-01-10 06:02:22,836 INFO L858 garLoopResultBuilder]: For program point L-1-2(line -1) no Hoare annotation was computed. [2022-01-10 06:02:22,836 INFO L858 garLoopResultBuilder]: For program point kzallocEXIT(line 48) no Hoare annotation was computed. [2022-01-10 06:02:22,836 INFO L861 garLoopResultBuilder]: At program point kzallocENTRY(line 48) the Hoare annotation is: true [2022-01-10 06:02:22,836 INFO L858 garLoopResultBuilder]: For program point kzallocFINAL(line 48) no Hoare annotation was computed. [2022-01-10 06:02:22,836 INFO L854 garLoopResultBuilder]: At program point L64(lines 62 65) the Hoare annotation is: (and (not (= (_ bv0 64) |ULTIMATE.start_ebda_rsrc_controller_~hp_slot_ptr~0#1.base|)) (not (= (_ bv0 64) ~tmp_slot~0.base)) (not (= (_ bv0 64) |ULTIMATE.start_ibmphp_find_same_bus_num_#res#1.base|)) (= ~used_tmp_slot~0 (_ bv1 32))) [2022-01-10 06:02:22,837 INFO L854 garLoopResultBuilder]: At program point L122(lines 72 133) the Hoare annotation is: (and (not (= (_ bv0 64) |ULTIMATE.start_ebda_rsrc_controller_~hp_slot_ptr~0#1.base|)) (not (= (_ bv0 64) ~tmp_slot~0.base)) (not (= (_ bv0 64) |ULTIMATE.start_ibmphp_find_same_bus_num_#res#1.base|)) (= ~used_tmp_slot~0 (_ bv1 32))) [2022-01-10 06:02:22,837 INFO L854 garLoopResultBuilder]: At program point L85(line 85) the Hoare annotation is: (not (= (_ bv0 64) |ULTIMATE.start_ebda_rsrc_controller_~hp_slot_ptr~0#1.base|)) [2022-01-10 06:02:22,837 INFO L858 garLoopResultBuilder]: For program point L85-1(line 85) no Hoare annotation was computed. [2022-01-10 06:02:22,837 INFO L858 garLoopResultBuilder]: For program point L135(lines 135 139) no Hoare annotation was computed. [2022-01-10 06:02:22,837 INFO L854 garLoopResultBuilder]: At program point L69(lines 67 70) the Hoare annotation is: (and (not (= (_ bv0 64) |ULTIMATE.start_ebda_rsrc_controller_~hp_slot_ptr~0#1.base|)) (not (= (_ bv0 64) ~tmp_slot~0.base)) (not (= (_ bv0 64) |ULTIMATE.start_ibmphp_find_same_bus_num_#res#1.base|)) (= ~used_tmp_slot~0 (_ bv1 32))) [2022-01-10 06:02:22,837 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-10 06:02:22,837 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-10 06:02:22,837 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-10 06:02:22,837 INFO L854 garLoopResultBuilder]: At program point L57(line 57) the Hoare annotation is: (and (not (= (_ bv0 64) |ULTIMATE.start_ebda_rsrc_controller_~hp_slot_ptr~0#1.base|)) (not (= (_ bv0 64) ~tmp_slot~0.base))) [2022-01-10 06:02:22,837 INFO L858 garLoopResultBuilder]: For program point L57-1(line 57) no Hoare annotation was computed. [2022-01-10 06:02:22,837 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2022-01-10 06:02:22,837 INFO L854 garLoopResultBuilder]: At program point L57-2(lines 56 58) the Hoare annotation is: (and (not (= (_ bv0 64) |ULTIMATE.start_ebda_rsrc_controller_~hp_slot_ptr~0#1.base|)) (not (= (_ bv0 64) ~tmp_slot~0.base)) (not (= (_ bv0 64) |ULTIMATE.start_ibmphp_find_same_bus_num_#res#1.base|))) [2022-01-10 06:02:22,837 INFO L861 garLoopResultBuilder]: At program point L78(line 78) the Hoare annotation is: true [2022-01-10 06:02:22,837 INFO L858 garLoopResultBuilder]: For program point L78-1(line 78) no Hoare annotation was computed. [2022-01-10 06:02:22,838 INFO L858 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2022-01-10 06:02:22,838 INFO L854 garLoopResultBuilder]: At program point L132(lines 72 133) the Hoare annotation is: (and (not (= (_ bv0 64) |ULTIMATE.start_ebda_rsrc_controller_~hp_slot_ptr~0#1.base|)) (not (= (_ bv0 64) ~tmp_slot~0.base)) (not (= (_ bv0 64) |ULTIMATE.start_ibmphp_find_same_bus_num_#res#1.base|)) (= ~used_tmp_slot~0 (_ bv1 32))) [2022-01-10 06:02:22,838 INFO L858 garLoopResultBuilder]: For program point L99(lines 99 107) no Hoare annotation was computed. [2022-01-10 06:02:22,838 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-10 06:02:22,838 INFO L854 garLoopResultBuilder]: At program point L128(lines 72 133) the Hoare annotation is: (and (not (= (_ bv0 64) |ULTIMATE.start_ebda_rsrc_controller_~hp_slot_ptr~0#1.base|)) (not (= (_ bv0 64) ~tmp_slot~0.base)) (not (= (_ bv0 64) |ULTIMATE.start_ibmphp_find_same_bus_num_#res#1.base|)) (= ~used_tmp_slot~0 (_ bv1 32))) [2022-01-10 06:02:22,838 INFO L858 garLoopResultBuilder]: For program point L87(lines 87 90) no Hoare annotation was computed. [2022-01-10 06:02:22,838 INFO L858 garLoopResultBuilder]: For program point L50(lines 50 53) no Hoare annotation was computed. [2022-01-10 06:02:22,838 INFO L858 garLoopResultBuilder]: For program point L79(lines 79 82) no Hoare annotation was computed. [2022-01-10 06:02:22,838 INFO L858 garLoopResultBuilder]: For program point L137(lines 137 138) no Hoare annotation was computed. [2022-01-10 06:02:22,838 INFO L858 garLoopResultBuilder]: For program point L121(lines 121 122) no Hoare annotation was computed. [2022-01-10 06:02:22,838 INFO L858 garLoopResultBuilder]: For program point L117(lines 117 118) no Hoare annotation was computed. [2022-01-10 06:02:22,838 INFO L858 garLoopResultBuilder]: For program point L51(lines 51 52) no Hoare annotation was computed. [2022-01-10 06:02:22,838 INFO L858 garLoopResultBuilder]: For program point L138(line 138) no Hoare annotation was computed. [2022-01-10 06:02:22,838 INFO L858 garLoopResultBuilder]: For program point L6(lines 6 9) no Hoare annotation was computed. [2022-01-10 06:02:22,840 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2022-01-10 06:02:22,841 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 06:02:22,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:02:22 BoogieIcfgContainer [2022-01-10 06:02:22,852 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 06:02:22,853 INFO L158 Benchmark]: Toolchain (without parser) took 5325.15ms. Allocated memory was 216.0MB in the beginning and 273.7MB in the end (delta: 57.7MB). Free memory was 162.9MB in the beginning and 223.7MB in the end (delta: -60.9MB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 06:02:22,853 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 216.0MB. Free memory is still 179.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 06:02:22,853 INFO L158 Benchmark]: CACSL2BoogieTranslator took 272.92ms. Allocated memory is still 216.0MB. Free memory was 162.8MB in the beginning and 188.6MB in the end (delta: -25.8MB). Peak memory consumption was 5.0MB. Max. memory is 8.0GB. [2022-01-10 06:02:22,853 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.36ms. Allocated memory is still 216.0MB. Free memory was 188.6MB in the beginning and 186.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 06:02:22,853 INFO L158 Benchmark]: Boogie Preprocessor took 34.87ms. Allocated memory is still 216.0MB. Free memory was 186.9MB in the beginning and 185.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 06:02:22,854 INFO L158 Benchmark]: RCFGBuilder took 371.79ms. Allocated memory is still 216.0MB. Free memory was 185.4MB in the beginning and 172.2MB in the end (delta: 13.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-01-10 06:02:22,854 INFO L158 Benchmark]: TraceAbstraction took 4593.41ms. Allocated memory was 216.0MB in the beginning and 273.7MB in the end (delta: 57.7MB). Free memory was 171.8MB in the beginning and 223.7MB in the end (delta: -51.9MB). Peak memory consumption was 7.1MB. Max. memory is 8.0GB. [2022-01-10 06:02:22,855 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 216.0MB. Free memory is still 179.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 272.92ms. Allocated memory is still 216.0MB. Free memory was 162.8MB in the beginning and 188.6MB in the end (delta: -25.8MB). Peak memory consumption was 5.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.36ms. Allocated memory is still 216.0MB. Free memory was 188.6MB in the beginning and 186.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.87ms. Allocated memory is still 216.0MB. Free memory was 186.9MB in the beginning and 185.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 371.79ms. Allocated memory is still 216.0MB. Free memory was 185.4MB in the beginning and 172.2MB in the end (delta: 13.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4593.41ms. Allocated memory was 216.0MB in the beginning and 273.7MB in the end (delta: 57.7MB). Free memory was 171.8MB in the beginning and 223.7MB in the end (delta: -51.9MB). Peak memory consumption was 7.1MB. 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: 8]: 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 2 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.5s, OverallIterations: 7, TraceHistogramMax: 9, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 131 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 128 mSDsluCounter, 951 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 715 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 214 IncrementalHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 236 mSDtfsCounter, 214 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 250 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=4, InterpolantAutomatonStates: 55, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 25 PreInvPairs, 43 NumberOfFragments, 129 HoareAnnotationTreeSize, 25 FomulaSimplifications, 10 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 273 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 197 NumberOfCodeBlocks, 177 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 232 ConstructedInterpolants, 0 QuantifiedInterpolants, 467 SizeOfPredicates, 13 NumberOfNonLiveVariables, 1008 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 265/273 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: 62]: Loop Invariant Derived loop invariant: ((!(0bv64 == hp_slot_ptr) && !(0bv64 == tmp_slot)) && !(0bv64 == \result)) && used_tmp_slot == 1bv32 - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: ((!(0bv64 == hp_slot_ptr) && !(0bv64 == tmp_slot)) && !(0bv64 == \result)) && used_tmp_slot == 1bv32 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: ((0bv64 == tmp_slot || (aux-#t~loopctr16-aux == 0bv64 && ~sign_extendFrom8To32(\old(size)) == unknown-#product-unknown)) || ~bvult64(0bv64, ~sign_extendFrom8To32(\old(size)))) && !(0bv64 == calloc(1, size)) - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: (!(0bv64 == hp_slot_ptr) && !(0bv64 == tmp_slot)) && !(0bv64 == \result) - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: ((!(0bv64 == hp_slot_ptr) && !(0bv64 == tmp_slot)) && !(0bv64 == \result)) && used_tmp_slot == 1bv32 - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: ((!(0bv64 == hp_slot_ptr) && !(0bv64 == tmp_slot)) && !(0bv64 == \result)) && used_tmp_slot == 1bv32 - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: ((!(0bv64 == hp_slot_ptr) && !(0bv64 == tmp_slot)) && !(0bv64 == \result)) && used_tmp_slot == 1bv32 RESULT: Ultimate proved your program to be correct! [2022-01-10 06:02:22,883 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...