/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/ps5-ll_valuebound1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 03:31:02,444 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 03:31:02,446 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 03:31:02,509 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 03:31:02,547 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 03:31:02,547 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 03:31:02,548 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 03:31:02,548 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 03:31:02,572 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 03:31:02,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 03:31:02,573 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 03:31:02,573 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 03:31:02,573 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 03:31:02,574 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 03:31:02,574 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 03:31:02,574 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 03:31:02,574 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 03:31:02,574 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 03:31:02,575 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 03:31:02,575 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 03:31:02,575 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 03:31:02,575 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 03:31:02,575 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 03:31:02,575 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 03:31:02,575 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 03:31:02,575 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 03:31:02,575 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 03:31:02,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 03:31:02,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 03:31:02,576 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 03:31:02,576 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 03:31:02,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 03:31:02,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 03:31:02,577 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 03:31:02,577 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 03:31:02,577 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 03:31:02,577 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 03:31:02,577 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 03:31:02,577 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 03:31:02,577 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 03:31:02,577 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 03:31:02,577 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 03:31:02,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 03:31:02,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 03:31:02,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 03:31:02,781 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 03:31:02,781 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 03:31:02,782 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/ps5-ll_valuebound1.c [2022-01-10 03:31:02,820 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f22643c6b/3161ccaa7e30418c9be1b6022a492a9c/FLAG068835f01 [2022-01-10 03:31:03,164 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 03:31:03,165 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/ps5-ll_valuebound1.c [2022-01-10 03:31:03,169 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f22643c6b/3161ccaa7e30418c9be1b6022a492a9c/FLAG068835f01 [2022-01-10 03:31:03,597 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f22643c6b/3161ccaa7e30418c9be1b6022a492a9c [2022-01-10 03:31:03,601 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 03:31:03,612 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 03:31:03,615 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 03:31:03,615 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 03:31:03,618 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 03:31:03,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:31:03" (1/1) ... [2022-01-10 03:31:03,620 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@209c47e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:31:03, skipping insertion in model container [2022-01-10 03:31:03,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:31:03" (1/1) ... [2022-01-10 03:31:03,624 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 03:31:03,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 03:31:03,807 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/ps5-ll_valuebound1.c[458,471] [2022-01-10 03:31:03,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 03:31:03,838 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 03:31:03,847 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/ps5-ll_valuebound1.c[458,471] [2022-01-10 03:31:03,861 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 03:31:03,869 INFO L208 MainTranslator]: Completed translation [2022-01-10 03:31:03,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:31:03 WrapperNode [2022-01-10 03:31:03,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 03:31:03,870 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 03:31:03,870 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 03:31:03,870 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 03:31:03,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:31:03" (1/1) ... [2022-01-10 03:31:03,879 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:31:03" (1/1) ... [2022-01-10 03:31:03,888 INFO L137 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 35 [2022-01-10 03:31:03,888 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 03:31:03,889 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 03:31:03,889 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 03:31:03,889 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 03:31:03,894 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:31:03" (1/1) ... [2022-01-10 03:31:03,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:31:03" (1/1) ... [2022-01-10 03:31:03,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:31:03" (1/1) ... [2022-01-10 03:31:03,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:31:03" (1/1) ... [2022-01-10 03:31:03,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:31:03" (1/1) ... [2022-01-10 03:31:03,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:31:03" (1/1) ... [2022-01-10 03:31:03,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:31:03" (1/1) ... [2022-01-10 03:31:03,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 03:31:03,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 03:31:03,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 03:31:03,903 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 03:31:03,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:31:03" (1/1) ... [2022-01-10 03:31:03,908 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 03:31:03,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 03:31:03,940 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 03:31:03,948 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 03:31:03,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 03:31:03,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 03:31:03,965 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-01-10 03:31:03,965 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-01-10 03:31:03,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 03:31:03,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 03:31:03,965 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-01-10 03:31:03,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-01-10 03:31:04,002 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 03:31:04,003 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 03:31:04,265 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 03:31:04,269 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 03:31:04,269 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 03:31:04,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:31:04 BoogieIcfgContainer [2022-01-10 03:31:04,271 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 03:31:04,272 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 03:31:04,272 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 03:31:04,274 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 03:31:04,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 03:31:03" (1/3) ... [2022-01-10 03:31:04,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50daef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 03:31:04, skipping insertion in model container [2022-01-10 03:31:04,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:31:03" (2/3) ... [2022-01-10 03:31:04,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50daef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 03:31:04, skipping insertion in model container [2022-01-10 03:31:04,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:31:04" (3/3) ... [2022-01-10 03:31:04,276 INFO L111 eAbstractionObserver]: Analyzing ICFG ps5-ll_valuebound1.c [2022-01-10 03:31:04,279 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 03:31:04,279 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 03:31:04,306 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 03:31:04,312 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 03:31:04,312 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 03:31:04,328 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-01-10 03:31:04,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-10 03:31:04,331 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 03:31:04,331 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 03:31:04,332 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 03:31:04,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 03:31:04,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1845349065, now seen corresponding path program 1 times [2022-01-10 03:31:04,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 03:31:04,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2050800857] [2022-01-10 03:31:04,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 03:31:04,346 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 03:31:04,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 03:31:04,373 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 03:31:04,374 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 03:31:04,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 03:31:04,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2022-01-10 03:31:04,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 03:31:04,628 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-10 03:31:04,628 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 03:31:04,629 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 03:31:04,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2050800857] [2022-01-10 03:31:04,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2050800857] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 03:31:04,629 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 03:31:04,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 03:31:04,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018890201] [2022-01-10 03:31:04,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 03:31:04,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 03:31:04,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 03:31:04,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 03:31:04,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 03:31:04,658 INFO L87 Difference]: Start difference. First operand has 24 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-01-10 03:31:04,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 03:31:04,671 INFO L93 Difference]: Finished difference Result 45 states and 63 transitions. [2022-01-10 03:31:04,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 03:31:04,673 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2022-01-10 03:31:04,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 03:31:04,677 INFO L225 Difference]: With dead ends: 45 [2022-01-10 03:31:04,677 INFO L226 Difference]: Without dead ends: 20 [2022-01-10 03:31:04,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 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 03:31:04,682 INFO L933 BasicCegarLoop]: 27 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, 27 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 03:31:04,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 03:31:04,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-01-10 03:31:04,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-01-10 03:31:04,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-01-10 03:31:04,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2022-01-10 03:31:04,714 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 18 [2022-01-10 03:31:04,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 03:31:04,714 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2022-01-10 03:31:04,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-01-10 03:31:04,715 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2022-01-10 03:31:04,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-10 03:31:04,717 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 03:31:04,717 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 03:31:04,730 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 03:31:04,929 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 03:31:04,930 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 03:31:04,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 03:31:04,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1506842435, now seen corresponding path program 1 times [2022-01-10 03:31:04,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 03:31:04,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [926257800] [2022-01-10 03:31:04,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 03:31:04,935 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 03:31:04,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 03:31:04,937 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 03:31:04,938 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 03:31:05,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 03:31:05,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjunts are in the unsatisfiable core [2022-01-10 03:31:05,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 03:31:05,212 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-10 03:31:05,212 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 03:31:05,213 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 03:31:05,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [926257800] [2022-01-10 03:31:05,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [926257800] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 03:31:05,213 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 03:31:05,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 03:31:05,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992913079] [2022-01-10 03:31:05,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 03:31:05,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 03:31:05,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 03:31:05,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 03:31:05,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 03:31:05,220 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-01-10 03:31:06,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 03:31:06,435 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2022-01-10 03:31:06,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 03:31:06,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2022-01-10 03:31:06,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 03:31:06,451 INFO L225 Difference]: With dead ends: 31 [2022-01-10 03:31:06,451 INFO L226 Difference]: Without dead ends: 27 [2022-01-10 03:31:06,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 03:31:06,452 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 6 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-10 03:31:06,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 75 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-10 03:31:06,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-01-10 03:31:06,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-01-10 03:31:06,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-01-10 03:31:06,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2022-01-10 03:31:06,460 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 18 [2022-01-10 03:31:06,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 03:31:06,460 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2022-01-10 03:31:06,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-01-10 03:31:06,460 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-01-10 03:31:06,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-01-10 03:31:06,461 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 03:31:06,461 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 03:31:06,476 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 03:31:06,661 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 03:31:06,662 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 03:31:06,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 03:31:06,662 INFO L85 PathProgramCache]: Analyzing trace with hash 903983968, now seen corresponding path program 1 times [2022-01-10 03:31:06,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 03:31:06,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [311784801] [2022-01-10 03:31:06,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 03:31:06,663 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 03:31:06,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 03:31:06,664 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 03:31:06,666 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 03:31:06,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 03:31:07,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-10 03:31:07,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 03:31:09,493 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-10 03:31:09,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 03:31:24,797 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-01-10 03:31:24,798 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 03:31:24,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [311784801] [2022-01-10 03:31:24,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [311784801] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-10 03:31:24,798 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-10 03:31:24,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2022-01-10 03:31:24,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682593410] [2022-01-10 03:31:24,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 03:31:24,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 03:31:24,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 03:31:24,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 03:31:24,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 03:31:24,799 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-10 03:31:28,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 03:31:28,852 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2022-01-10 03:31:28,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 03:31:28,880 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25 [2022-01-10 03:31:28,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 03:31:28,880 INFO L225 Difference]: With dead ends: 33 [2022-01-10 03:31:28,880 INFO L226 Difference]: Without dead ends: 29 [2022-01-10 03:31:28,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-01-10 03:31:28,882 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 7 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-01-10 03:31:28,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 64 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-01-10 03:31:28,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-01-10 03:31:28,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-01-10 03:31:28,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-01-10 03:31:28,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2022-01-10 03:31:28,890 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 25 [2022-01-10 03:31:28,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 03:31:28,890 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2022-01-10 03:31:28,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-10 03:31:28,891 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2022-01-10 03:31:28,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-01-10 03:31:28,892 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 03:31:28,892 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 03:31:28,911 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-01-10 03:31:29,110 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 03:31:29,111 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 03:31:29,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 03:31:29,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1648043046, now seen corresponding path program 1 times [2022-01-10 03:31:29,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 03:31:29,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1105752369] [2022-01-10 03:31:29,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 03:31:29,112 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 03:31:29,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 03:31:29,114 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 03:31:29,116 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 03:31:29,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 03:31:29,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-10 03:31:29,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 03:31:30,199 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-01-10 03:31:30,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 03:31:38,959 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-01-10 03:31:38,959 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 03:31:38,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1105752369] [2022-01-10 03:31:38,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1105752369] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 03:31:38,960 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 03:31:38,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-01-10 03:31:38,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049449530] [2022-01-10 03:31:38,960 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 03:31:38,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-10 03:31:38,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 03:31:38,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-10 03:31:38,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-01-10 03:31:38,961 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 15 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 11 states have internal predecessors, (28), 7 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 6 states have call predecessors, (10), 7 states have call successors, (10) [2022-01-10 03:31:43,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 03:31:43,067 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2022-01-10 03:31:43,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 03:31:43,067 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 11 states have internal predecessors, (28), 7 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 6 states have call predecessors, (10), 7 states have call successors, (10) Word has length 36 [2022-01-10 03:31:43,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 03:31:43,067 INFO L225 Difference]: With dead ends: 42 [2022-01-10 03:31:43,068 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 03:31:43,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-01-10 03:31:43,069 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 15 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-01-10 03:31:43,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 157 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-01-10 03:31:43,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 03:31:43,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 03:31:43,070 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 03:31:43,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 03:31:43,070 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2022-01-10 03:31:43,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 03:31:43,070 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 03:31:43,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 11 states have internal predecessors, (28), 7 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 6 states have call predecessors, (10), 7 states have call successors, (10) [2022-01-10 03:31:43,070 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 03:31:43,070 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 03:31:43,072 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 03:31:43,092 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 03:31:43,283 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 03:31:43,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-10 03:31:48,613 WARN L228 SmtUtils]: Spent 5.32s on a formula simplification. DAG size of input: 43 DAG size of output: 43 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-01-10 03:31:56,974 WARN L228 SmtUtils]: Spent 6.56s on a formula simplification. DAG size of input: 43 DAG size of output: 43 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-01-10 03:31:58,945 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-10 03:31:58,946 INFO L854 garLoopResultBuilder]: At program point L29(line 29) the Hoare annotation is: (let ((.cse2 ((_ sign_extend 16) |ULTIMATE.start_main_~k~0#1|))) (let ((.cse1 (bvsle .cse2 (_ bv1 32)))) (or (let ((.cse0 ((_ sign_extend 32) .cse2))) (and (bvslt (_ bv0 64) .cse0) (= (_ bv0 64) (bvadd (bvneg (bvmul |ULTIMATE.start_main_~x~0#1| (_ bv30 64))) (bvmul (bvmul |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|) (_ bv6 64)) (bvmul (_ bv10 64) (bvmul |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (bvmul (bvmul |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|) (_ bv15 64)) (bvneg |ULTIMATE.start_main_~y~0#1|))) .cse1 (= |ULTIMATE.start_main_~y~0#1| (_ bv1 64)) (not (bvslt |ULTIMATE.start_main_~c~0#1| .cse0)))) (and .cse1 (bvsge .cse2 (_ bv0 32)) (= (_ bv0 64) |ULTIMATE.start_main_~x~0#1|) (= (_ bv0 64) |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~c~0#1| (_ bv0 64)))))) [2022-01-10 03:31:58,946 INFO L858 garLoopResultBuilder]: For program point L29-1(lines 28 37) no Hoare annotation was computed. [2022-01-10 03:31:58,946 INFO L861 garLoopResultBuilder]: At program point L21(line 21) the Hoare annotation is: true [2022-01-10 03:31:58,946 INFO L854 garLoopResultBuilder]: At program point L21-1(line 21) the Hoare annotation is: (let ((.cse0 ((_ sign_extend 16) |ULTIMATE.start_main_~k~0#1|))) (and (bvsle .cse0 (_ bv1 32)) (bvsge .cse0 (_ bv0 32)))) [2022-01-10 03:31:58,946 INFO L858 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2022-01-10 03:31:58,946 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-10 03:31:58,946 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-10 03:31:58,947 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-10 03:31:58,947 INFO L854 garLoopResultBuilder]: At program point L28-2(lines 28 37) the Hoare annotation is: (let ((.cse2 ((_ sign_extend 16) |ULTIMATE.start_main_~k~0#1|))) (let ((.cse1 (bvsle .cse2 (_ bv1 32)))) (or (let ((.cse0 ((_ sign_extend 32) .cse2))) (and (bvslt (_ bv0 64) .cse0) (= (_ bv0 64) (bvadd (bvneg (bvmul |ULTIMATE.start_main_~x~0#1| (_ bv30 64))) (bvmul (bvmul |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|) (_ bv6 64)) (bvmul (_ bv10 64) (bvmul |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (bvmul (bvmul |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|) (_ bv15 64)) (bvneg |ULTIMATE.start_main_~y~0#1|))) .cse1 (= |ULTIMATE.start_main_~y~0#1| (_ bv1 64)) (not (bvslt |ULTIMATE.start_main_~c~0#1| .cse0)))) (and .cse1 (bvsge .cse2 (_ bv0 32)) (= (_ bv0 64) |ULTIMATE.start_main_~x~0#1|) (= (_ bv0 64) |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~c~0#1| (_ bv0 64)))))) [2022-01-10 03:31:58,947 INFO L854 garLoopResultBuilder]: At program point L28-3(lines 28 37) the Hoare annotation is: (or (let ((.cse1 ((_ sign_extend 16) |ULTIMATE.start_main_~k~0#1|))) (let ((.cse0 ((_ sign_extend 32) .cse1))) (and (bvslt (_ bv0 64) .cse0) (= (_ bv0 64) (bvadd (bvneg (bvmul |ULTIMATE.start_main_~x~0#1| (_ bv30 64))) (bvmul |ULTIMATE.start_main_~y~0#1| (bvmul |ULTIMATE.start_main_~y~0#1| (bvmul |ULTIMATE.start_main_~y~0#1| (bvmul |ULTIMATE.start_main_~y~0#1| (bvmul |ULTIMATE.start_main_~y~0#1| (_ bv6 64)))))) (bvmul |ULTIMATE.start_main_~y~0#1| (bvmul |ULTIMATE.start_main_~y~0#1| (bvmul |ULTIMATE.start_main_~y~0#1| (bvmul |ULTIMATE.start_main_~y~0#1| (_ bv15 64))))) (bvmul (bvmul |ULTIMATE.start_main_~y~0#1| (bvmul (_ bv10 64) |ULTIMATE.start_main_~y~0#1|)) |ULTIMATE.start_main_~y~0#1|) (bvneg |ULTIMATE.start_main_~y~0#1|))) (bvsle .cse1 (_ bv1 32)) (= |ULTIMATE.start_main_~y~0#1| (_ bv1 64)) (not (bvslt |ULTIMATE.start_main_~c~0#1| .cse0))))) (and (= (_ bv0 64) |ULTIMATE.start_main_~x~0#1|) (= (_ bv0 64) |ULTIMATE.start_main_~y~0#1|))) [2022-01-10 03:31:58,947 INFO L858 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2022-01-10 03:31:58,947 INFO L861 garLoopResultBuilder]: At program point L41(lines 17 42) the Hoare annotation is: true [2022-01-10 03:31:58,947 INFO L854 garLoopResultBuilder]: At program point L39(line 39) the Hoare annotation is: (or (let ((.cse1 ((_ sign_extend 16) |ULTIMATE.start_main_~k~0#1|))) (let ((.cse0 ((_ sign_extend 32) .cse1))) (and (bvslt (_ bv0 64) .cse0) (= (_ bv0 64) (bvadd (bvneg (bvmul |ULTIMATE.start_main_~x~0#1| (_ bv30 64))) (bvmul |ULTIMATE.start_main_~y~0#1| (bvmul |ULTIMATE.start_main_~y~0#1| (bvmul |ULTIMATE.start_main_~y~0#1| (bvmul |ULTIMATE.start_main_~y~0#1| (bvmul |ULTIMATE.start_main_~y~0#1| (_ bv6 64)))))) (bvmul |ULTIMATE.start_main_~y~0#1| (bvmul |ULTIMATE.start_main_~y~0#1| (bvmul |ULTIMATE.start_main_~y~0#1| (bvmul |ULTIMATE.start_main_~y~0#1| (_ bv15 64))))) (bvmul (bvmul |ULTIMATE.start_main_~y~0#1| (bvmul (_ bv10 64) |ULTIMATE.start_main_~y~0#1|)) |ULTIMATE.start_main_~y~0#1|) (bvneg |ULTIMATE.start_main_~y~0#1|))) (bvsle .cse1 (_ bv1 32)) (= |ULTIMATE.start_main_~y~0#1| (_ bv1 64)) (not (bvslt |ULTIMATE.start_main_~c~0#1| .cse0))))) (and (= (_ bv0 64) |ULTIMATE.start_main_~x~0#1|) (= (_ bv0 64) |ULTIMATE.start_main_~y~0#1|))) [2022-01-10 03:31:58,947 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 6 8) the Hoare annotation is: true [2022-01-10 03:31:58,947 INFO L858 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2022-01-10 03:31:58,947 INFO L858 garLoopResultBuilder]: For program point L7-2(lines 6 8) no Hoare annotation was computed. [2022-01-10 03:31:58,947 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 6 8) no Hoare annotation was computed. [2022-01-10 03:31:58,947 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 9 15) the Hoare annotation is: true [2022-01-10 03:31:58,948 INFO L858 garLoopResultBuilder]: For program point L11(lines 11 12) no Hoare annotation was computed. [2022-01-10 03:31:58,948 INFO L858 garLoopResultBuilder]: For program point L10(lines 10 13) no Hoare annotation was computed. [2022-01-10 03:31:58,948 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 9 15) no Hoare annotation was computed. [2022-01-10 03:31:58,948 INFO L858 garLoopResultBuilder]: For program point L10-2(lines 9 15) no Hoare annotation was computed. [2022-01-10 03:31:58,948 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2022-01-10 03:31:58,950 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-01-10 03:31:58,951 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 03:31:58,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 03:31:58 BoogieIcfgContainer [2022-01-10 03:31:58,977 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 03:31:58,978 INFO L158 Benchmark]: Toolchain (without parser) took 55366.17ms. Allocated memory is still 176.2MB. Free memory was 124.2MB in the beginning and 141.6MB in the end (delta: -17.4MB). Peak memory consumption was 52.9MB. Max. memory is 8.0GB. [2022-01-10 03:31:58,978 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 176.2MB. Free memory is still 140.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 03:31:58,978 INFO L158 Benchmark]: CACSL2BoogieTranslator took 254.24ms. Allocated memory is still 176.2MB. Free memory was 124.1MB in the beginning and 150.6MB in the end (delta: -26.5MB). Peak memory consumption was 7.1MB. Max. memory is 8.0GB. [2022-01-10 03:31:58,979 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.43ms. Allocated memory is still 176.2MB. Free memory was 150.1MB in the beginning and 148.9MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 03:31:58,979 INFO L158 Benchmark]: Boogie Preprocessor took 13.37ms. Allocated memory is still 176.2MB. Free memory was 148.9MB in the beginning and 147.5MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 03:31:58,979 INFO L158 Benchmark]: RCFGBuilder took 368.23ms. Allocated memory is still 176.2MB. Free memory was 147.5MB in the beginning and 136.5MB in the end (delta: 11.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-01-10 03:31:58,979 INFO L158 Benchmark]: TraceAbstraction took 54705.86ms. Allocated memory is still 176.2MB. Free memory was 136.0MB in the beginning and 141.6MB in the end (delta: -5.7MB). Peak memory consumption was 65.5MB. Max. memory is 8.0GB. [2022-01-10 03:31:58,981 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 176.2MB. Free memory is still 140.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 254.24ms. Allocated memory is still 176.2MB. Free memory was 124.1MB in the beginning and 150.6MB in the end (delta: -26.5MB). Peak memory consumption was 7.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.43ms. Allocated memory is still 176.2MB. Free memory was 150.1MB in the beginning and 148.9MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.37ms. Allocated memory is still 176.2MB. Free memory was 148.9MB in the beginning and 147.5MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 368.23ms. Allocated memory is still 176.2MB. Free memory was 147.5MB in the beginning and 136.5MB in the end (delta: 11.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 54705.86ms. Allocated memory is still 176.2MB. Free memory was 136.0MB in the beginning and 141.6MB in the end (delta: -5.7MB). Peak memory consumption was 65.5MB. 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: 12]: 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, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 54.6s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 15.7s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 7.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 323 SdHoareTripleChecker+Invalid, 6.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 239 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 127 IncrementalHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 84 mSDtfsCounter, 127 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 157 GetRequests, 128 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 19.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=3, InterpolantAutomatonStates: 24, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 22 PreInvPairs, 32 NumberOfFragments, 275 HoareAnnotationTreeSize, 22 FomulaSimplifications, 5 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 84 FormulaSimplificationTreeSizeReductionInter, 15.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 27.6s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 152 ConstructedInterpolants, 0 QuantifiedInterpolants, 675 SizeOfPredicates, 5 NumberOfNonLiveVariables, 195 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 60/74 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: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: ((((~bvslt64(0bv64, ~sign_extendFrom8To32(~sign_extendFrom8To32(k))) && 0bv64 == ~bvadd32(~bvneg64(~bvmul64(x, 30bv64)), ~bvmul64(~bvmul64(y, y, y, y, y), 6bv64), ~bvmul64(10bv64, ~bvmul64(y, y, y)), ~bvmul64(~bvmul64(y, y, y, y), 15bv64), ~bvneg64(y))) && ~bvsle32(~sign_extendFrom8To32(k), 1bv32)) && y == 1bv64) && !~bvslt64(c, ~sign_extendFrom8To32(~sign_extendFrom8To32(k)))) || ((((~bvsle32(~sign_extendFrom8To32(k), 1bv32) && ~bvsge32(~sign_extendFrom8To32(k), 0bv32)) && 0bv64 == x) && 0bv64 == y) && c == 0bv64) RESULT: Ultimate proved your program to be correct! [2022-01-10 03:31:59,043 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...