/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/nla-digbench-scaling/geo1-ll_valuebound1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 03:14:16,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 03:14:16,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 03:14:16,984 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 03:14:17,002 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 03:14:17,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 03:14:17,004 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 03:14:17,005 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 03:14:17,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 03:14:17,006 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 03:14:17,009 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 03:14:17,013 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 03:14:17,014 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 03:14:17,014 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 03:14:17,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 03:14:17,016 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 03:14:17,021 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 03:14:17,029 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 03:14:17,030 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 03:14:17,030 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 03:14:17,031 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 03:14:17,088 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 03:14:17,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 03:14:17,089 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 03:14:17,089 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 03:14:17,089 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 03:14:17,089 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 03:14:17,090 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 03:14:17,090 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 03:14:17,090 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 03:14:17,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 03:14:17,091 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 03:14:17,091 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 03:14:17,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 03:14:17,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 03:14:17,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 03:14:17,091 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 03:14:17,091 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 03:14:17,091 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 03:14:17,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 03:14:17,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 03:14:17,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 03:14:17,092 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 03:14:17,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 03:14:17,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 03:14:17,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 03:14:17,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 03:14:17,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 03:14:17,093 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 03:14:17,093 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 03:14:17,093 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 03:14:17,093 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 03:14:17,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 03:14:17,093 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 03:14:17,093 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 03:14:17,344 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 03:14:17,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 03:14:17,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 03:14:17,370 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 03:14:17,389 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 03:14:17,390 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/geo1-ll_valuebound1.c [2022-01-10 03:14:17,455 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/213ab16c8/ceb8489f27fe4e318eb7551f089e1a87/FLAG4ed41c1e2 [2022-01-10 03:14:17,757 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 03:14:17,757 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo1-ll_valuebound1.c [2022-01-10 03:14:17,761 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/213ab16c8/ceb8489f27fe4e318eb7551f089e1a87/FLAG4ed41c1e2 [2022-01-10 03:14:17,770 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/213ab16c8/ceb8489f27fe4e318eb7551f089e1a87 [2022-01-10 03:14:17,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 03:14:17,772 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 03:14:17,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 03:14:17,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 03:14:17,777 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 03:14:17,777 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:14:17" (1/1) ... [2022-01-10 03:14:17,778 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@406d3b53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:14:17, skipping insertion in model container [2022-01-10 03:14:17,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:14:17" (1/1) ... [2022-01-10 03:14:17,782 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 03:14:17,796 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 03:14:17,938 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo1-ll_valuebound1.c[546,559] [2022-01-10 03:14:17,960 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 03:14:17,967 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 03:14:17,978 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo1-ll_valuebound1.c[546,559] [2022-01-10 03:14:17,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 03:14:18,001 INFO L208 MainTranslator]: Completed translation [2022-01-10 03:14:18,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:14:18 WrapperNode [2022-01-10 03:14:18,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 03:14:18,003 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 03:14:18,003 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 03:14:18,003 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 03:14:18,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:14:18" (1/1) ... [2022-01-10 03:14:18,014 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:14:18" (1/1) ... [2022-01-10 03:14:18,026 INFO L137 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 40 [2022-01-10 03:14:18,027 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 03:14:18,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 03:14:18,027 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 03:14:18,027 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 03:14:18,033 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:14:18" (1/1) ... [2022-01-10 03:14:18,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:14:18" (1/1) ... [2022-01-10 03:14:18,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:14:18" (1/1) ... [2022-01-10 03:14:18,042 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:14:18" (1/1) ... [2022-01-10 03:14:18,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:14:18" (1/1) ... [2022-01-10 03:14:18,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:14:18" (1/1) ... [2022-01-10 03:14:18,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:14:18" (1/1) ... [2022-01-10 03:14:18,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 03:14:18,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 03:14:18,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 03:14:18,057 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 03:14:18,062 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:14:18" (1/1) ... [2022-01-10 03:14:18,067 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 03:14:18,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 03:14:18,096 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 03:14:18,104 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 03:14:18,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 03:14:18,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 03:14:18,129 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-01-10 03:14:18,129 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-01-10 03:14:18,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 03:14:18,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 03:14:18,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-01-10 03:14:18,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-01-10 03:14:18,178 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 03:14:18,180 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 03:14:18,435 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 03:14:18,440 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 03:14:18,440 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 03:14:18,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:14:18 BoogieIcfgContainer [2022-01-10 03:14:18,441 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 03:14:18,442 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 03:14:18,442 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 03:14:18,445 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 03:14:18,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 03:14:17" (1/3) ... [2022-01-10 03:14:18,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac2d9ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 03:14:18, skipping insertion in model container [2022-01-10 03:14:18,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:14:18" (2/3) ... [2022-01-10 03:14:18,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac2d9ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 03:14:18, skipping insertion in model container [2022-01-10 03:14:18,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:14:18" (3/3) ... [2022-01-10 03:14:18,447 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-ll_valuebound1.c [2022-01-10 03:14:18,450 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 03:14:18,450 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 03:14:18,498 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 03:14:18,503 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 03:14:18,503 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 03:14:18,515 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-01-10 03:14:18,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-01-10 03:14:18,519 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 03:14:18,520 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 03:14:18,520 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 03:14:18,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 03:14:18,525 INFO L85 PathProgramCache]: Analyzing trace with hash -439363615, now seen corresponding path program 1 times [2022-01-10 03:14:18,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 03:14:18,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1909054888] [2022-01-10 03:14:18,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 03:14:18,534 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 03:14:18,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 03:14:18,547 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 03:14:18,554 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 03:14:18,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 03:14:18,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 1 conjunts are in the unsatisfiable core [2022-01-10 03:14:18,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 03:14:18,733 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-01-10 03:14:18,734 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 03:14:18,734 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 03:14:18,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1909054888] [2022-01-10 03:14:18,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1909054888] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 03:14:18,735 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 03:14:18,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 03:14:18,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922818717] [2022-01-10 03:14:18,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 03:14:18,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 03:14:18,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 03:14:18,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 03:14:18,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 03:14:18,757 INFO L87 Difference]: Start difference. First operand has 27 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-01-10 03:14:18,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 03:14:18,773 INFO L93 Difference]: Finished difference Result 51 states and 72 transitions. [2022-01-10 03:14:18,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 03:14:18,775 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 29 [2022-01-10 03:14:18,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 03:14:18,779 INFO L225 Difference]: With dead ends: 51 [2022-01-10 03:14:18,780 INFO L226 Difference]: Without dead ends: 23 [2022-01-10 03:14:18,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 03:14:18,786 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 03:14:18,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 03:14:18,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-01-10 03:14:18,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-01-10 03:14:18,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-01-10 03:14:18,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2022-01-10 03:14:18,812 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 29 [2022-01-10 03:14:18,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 03:14:18,812 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2022-01-10 03:14:18,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-01-10 03:14:18,812 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-01-10 03:14:18,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-01-10 03:14:18,813 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 03:14:18,813 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 03:14:18,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-01-10 03:14:19,024 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 03:14:19,025 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 03:14:19,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 03:14:19,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1976149669, now seen corresponding path program 1 times [2022-01-10 03:14:19,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 03:14:19,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [151396764] [2022-01-10 03:14:19,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 03:14:19,030 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 03:14:19,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 03:14:19,032 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 03:14:19,033 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 03:14:19,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 03:14:19,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 11 conjunts are in the unsatisfiable core [2022-01-10 03:14:19,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 03:14:19,395 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-01-10 03:14:19,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 03:14:20,249 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-10 03:14:20,249 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 03:14:20,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [151396764] [2022-01-10 03:14:20,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [151396764] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-10 03:14:20,250 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-10 03:14:20,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-01-10 03:14:20,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787134798] [2022-01-10 03:14:20,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 03:14:20,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 03:14:20,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 03:14:20,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 03:14:20,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-01-10 03:14:20,253 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-01-10 03:14:22,534 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 03:14:22,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 03:14:22,966 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2022-01-10 03:14:22,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 03:14:22,988 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 29 [2022-01-10 03:14:22,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 03:14:22,989 INFO L225 Difference]: With dead ends: 33 [2022-01-10 03:14:22,989 INFO L226 Difference]: Without dead ends: 31 [2022-01-10 03:14:22,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-01-10 03:14:22,990 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 7 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-01-10 03:14:22,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 87 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-01-10 03:14:22,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-01-10 03:14:22,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2022-01-10 03:14:22,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 20 states have internal predecessors, (20), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-01-10 03:14:22,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2022-01-10 03:14:22,996 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 29 [2022-01-10 03:14:22,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 03:14:22,997 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2022-01-10 03:14:22,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-01-10 03:14:22,997 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2022-01-10 03:14:22,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-01-10 03:14:22,998 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 03:14:22,998 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 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 03:14:23,005 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-01-10 03:14:23,205 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 03:14:23,205 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 03:14:23,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 03:14:23,206 INFO L85 PathProgramCache]: Analyzing trace with hash -900153941, now seen corresponding path program 1 times [2022-01-10 03:14:23,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 03:14:23,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [562850195] [2022-01-10 03:14:23,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 03:14:23,207 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 03:14:23,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 03:14:23,208 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 03:14:23,209 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 03:14:23,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 03:14:23,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 11 conjunts are in the unsatisfiable core [2022-01-10 03:14:23,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 03:14:23,930 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-01-10 03:14:23,930 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 03:14:24,777 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-01-10 03:14:24,777 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 03:14:24,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [562850195] [2022-01-10 03:14:24,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [562850195] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 03:14:24,778 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 03:14:24,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 15 [2022-01-10 03:14:24,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815588116] [2022-01-10 03:14:24,778 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 03:14:24,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-10 03:14:24,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 03:14:24,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-10 03:14:24,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-01-10 03:14:24,779 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 15 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 12 states have internal predecessors, (25), 7 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2022-01-10 03:14:25,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 03:14:25,657 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2022-01-10 03:14:25,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 03:14:25,658 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 12 states have internal predecessors, (25), 7 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) Word has length 36 [2022-01-10 03:14:25,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 03:14:25,658 INFO L225 Difference]: With dead ends: 29 [2022-01-10 03:14:25,658 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 03:14:25,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-01-10 03:14:25,660 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 20 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 03:14:25,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 102 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 03:14:25,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 03:14:25,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 03:14:25,660 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 03:14:25,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 03:14:25,661 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2022-01-10 03:14:25,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 03:14:25,661 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 03:14:25,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 12 states have internal predecessors, (25), 7 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2022-01-10 03:14:25,661 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 03:14:25,661 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 03:14:25,663 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 03:14:25,672 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 03:14:25,872 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 03:14:25,874 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-10 03:14:26,215 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-10 03:14:26,215 INFO L854 garLoopResultBuilder]: At program point L29(line 29) the Hoare annotation is: (and (bvsge |ULTIMATE.start_main_~z~0#1| (_ bv1 32)) (bvsle |ULTIMATE.start_main_~z~0#1| (_ bv1 32))) [2022-01-10 03:14:26,215 INFO L854 garLoopResultBuilder]: At program point L50(line 50) the Hoare annotation is: (and (bvsge |ULTIMATE.start_main_~z~0#1| (_ bv1 32)) (bvsle |ULTIMATE.start_main_~z~0#1| (_ bv1 32)) (exists ((|ULTIMATE.start_main_~z~0#1| (_ BitVec 32))) (and (= |ULTIMATE.start_main_~y~0#1| ((_ sign_extend 32) |ULTIMATE.start_main_~z~0#1|)) (bvsge |ULTIMATE.start_main_~z~0#1| (_ bv1 32)) (exists ((|v_ULTIMATE.start_main_~x~0#1_13| (_ BitVec 64))) (= |ULTIMATE.start_main_~x~0#1| (bvmul ((_ sign_extend 32) (bvadd (_ bv4294967295 32) |ULTIMATE.start_main_~z~0#1|)) |v_ULTIMATE.start_main_~x~0#1_13|))) (bvsle |ULTIMATE.start_main_~z~0#1| (_ bv1 32))))) [2022-01-10 03:14:26,215 INFO L858 garLoopResultBuilder]: For program point L50-1(line 50) no Hoare annotation was computed. [2022-01-10 03:14:26,216 INFO L854 garLoopResultBuilder]: At program point L36-2(lines 36 46) the Hoare annotation is: (and (= |ULTIMATE.start_main_~y~0#1| ((_ sign_extend 32) |ULTIMATE.start_main_~z~0#1|)) (bvsge |ULTIMATE.start_main_~z~0#1| (_ bv1 32)) (bvsle |ULTIMATE.start_main_~z~0#1| (_ bv1 32))) [2022-01-10 03:14:26,216 INFO L858 garLoopResultBuilder]: For program point L36-3(lines 36 46) no Hoare annotation was computed. [2022-01-10 03:14:26,216 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-10 03:14:26,216 INFO L858 garLoopResultBuilder]: For program point L30(line 30) no Hoare annotation was computed. [2022-01-10 03:14:26,216 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-10 03:14:26,216 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-10 03:14:26,216 INFO L854 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: (and (bvsge |ULTIMATE.start_main_~z~0#1| (_ bv0 32)) (bvsle |ULTIMATE.start_main_~z~0#1| (_ bv1 32))) [2022-01-10 03:14:26,216 INFO L854 garLoopResultBuilder]: At program point L28-1(line 28) the Hoare annotation is: (and (bvsge |ULTIMATE.start_main_~z~0#1| (_ bv0 32)) (bvsle |ULTIMATE.start_main_~z~0#1| (_ bv1 32))) [2022-01-10 03:14:26,216 INFO L861 garLoopResultBuilder]: At program point L26(line 26) the Hoare annotation is: true [2022-01-10 03:14:26,216 INFO L858 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2022-01-10 03:14:26,216 INFO L861 garLoopResultBuilder]: At program point L51(lines 22 52) the Hoare annotation is: true [2022-01-10 03:14:26,217 INFO L854 garLoopResultBuilder]: At program point L37(line 37) the Hoare annotation is: (and (= |ULTIMATE.start_main_~y~0#1| ((_ sign_extend 32) |ULTIMATE.start_main_~z~0#1|)) (bvsge |ULTIMATE.start_main_~z~0#1| (_ bv1 32)) (bvsle |ULTIMATE.start_main_~z~0#1| (_ bv1 32))) [2022-01-10 03:14:26,217 INFO L858 garLoopResultBuilder]: For program point L37-1(lines 36 46) no Hoare annotation was computed. [2022-01-10 03:14:26,217 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 12 14) the Hoare annotation is: true [2022-01-10 03:14:26,217 INFO L858 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2022-01-10 03:14:26,217 INFO L858 garLoopResultBuilder]: For program point L13-2(lines 12 14) no Hoare annotation was computed. [2022-01-10 03:14:26,217 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 12 14) no Hoare annotation was computed. [2022-01-10 03:14:26,217 INFO L858 garLoopResultBuilder]: For program point L17(lines 17 18) no Hoare annotation was computed. [2022-01-10 03:14:26,217 INFO L858 garLoopResultBuilder]: For program point L16(lines 16 19) no Hoare annotation was computed. [2022-01-10 03:14:26,217 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 15 21) the Hoare annotation is: true [2022-01-10 03:14:26,217 INFO L858 garLoopResultBuilder]: For program point L16-2(lines 15 21) no Hoare annotation was computed. [2022-01-10 03:14:26,217 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 15 21) no Hoare annotation was computed. [2022-01-10 03:14:26,218 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed. [2022-01-10 03:14:26,220 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-10 03:14:26,221 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 03:14:26,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 03:14:26 BoogieIcfgContainer [2022-01-10 03:14:26,229 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 03:14:26,229 INFO L158 Benchmark]: Toolchain (without parser) took 8456.79ms. Allocated memory was 203.4MB in the beginning and 263.2MB in the end (delta: 59.8MB). Free memory was 157.3MB in the beginning and 171.2MB in the end (delta: -13.9MB). Peak memory consumption was 45.1MB. Max. memory is 8.0GB. [2022-01-10 03:14:26,230 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 203.4MB. Free memory is still 173.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 03:14:26,230 INFO L158 Benchmark]: CACSL2BoogieTranslator took 226.67ms. Allocated memory is still 203.4MB. Free memory was 157.1MB in the beginning and 179.0MB in the end (delta: -22.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-01-10 03:14:26,230 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.61ms. Allocated memory is still 203.4MB. Free memory was 179.0MB in the beginning and 177.7MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 03:14:26,230 INFO L158 Benchmark]: Boogie Preprocessor took 28.82ms. Allocated memory is still 203.4MB. Free memory was 177.7MB in the beginning and 176.4MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 03:14:26,231 INFO L158 Benchmark]: RCFGBuilder took 384.60ms. Allocated memory is still 203.4MB. Free memory was 176.4MB in the beginning and 166.9MB in the end (delta: 9.5MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-01-10 03:14:26,231 INFO L158 Benchmark]: TraceAbstraction took 7786.72ms. Allocated memory was 203.4MB in the beginning and 263.2MB in the end (delta: 59.8MB). Free memory was 166.5MB in the beginning and 171.2MB in the end (delta: -4.8MB). Peak memory consumption was 54.3MB. Max. memory is 8.0GB. [2022-01-10 03:14:26,232 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 203.4MB. Free memory is still 173.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 226.67ms. Allocated memory is still 203.4MB. Free memory was 157.1MB in the beginning and 179.0MB in the end (delta: -22.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.61ms. Allocated memory is still 203.4MB. Free memory was 179.0MB in the beginning and 177.7MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.82ms. Allocated memory is still 203.4MB. Free memory was 177.7MB in the beginning and 176.4MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 384.60ms. Allocated memory is still 203.4MB. Free memory was 176.4MB in the beginning and 166.9MB in the end (delta: 9.5MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 7786.72ms. Allocated memory was 203.4MB in the beginning and 263.2MB in the end (delta: 59.8MB). Free memory was 166.5MB in the beginning and 171.2MB in the end (delta: -4.8MB). Peak memory consumption was 54.3MB. 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: 18]: 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 3 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.7s, OverallIterations: 3, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 220 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 152 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 113 IncrementalHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 68 mSDtfsCounter, 113 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 158 GetRequests, 130 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=2, InterpolantAutomatonStates: 18, 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, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 20 PreInvPairs, 29 NumberOfFragments, 75 HoareAnnotationTreeSize, 20 FomulaSimplifications, 5 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 48 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 94 NumberOfCodeBlocks, 94 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 154 ConstructedInterpolants, 1 QuantifiedInterpolants, 464 SizeOfPredicates, 8 NumberOfNonLiveVariables, 171 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 97/124 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: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: (y == ~sign_extendFrom8To32(z) && ~bvsge32(z, 1bv32)) && ~bvsle32(z, 1bv32) RESULT: Ultimate proved your program to be correct! [2022-01-10 03:14:26,268 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...