/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/xcsp/AllInterval-005.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 07:27:32,245 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 07:27:32,247 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 07:27:32,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 07:27:32,350 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 07:27:32,351 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 07:27:32,352 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 07:27:32,360 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 07:27:32,386 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 07:27:32,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 07:27:32,387 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 07:27:32,387 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 07:27:32,388 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 07:27:32,388 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 07:27:32,388 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 07:27:32,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 07:27:32,388 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 07:27:32,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 07:27:32,389 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 07:27:32,389 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 07:27:32,390 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 07:27:32,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 07:27:32,390 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 07:27:32,390 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 07:27:32,390 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 07:27:32,390 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 07:27:32,390 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 07:27:32,391 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 07:27:32,391 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 07:27:32,391 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 07:27:32,391 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 07:27:32,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 07:27:32,392 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 07:27:32,392 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 07:27:32,393 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 07:27:32,393 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 07:27:32,393 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 07:27:32,393 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 07:27:32,393 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 07:27:32,393 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 07:27:32,393 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 07:27:32,394 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 07:27:32,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 07:27:32,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 07:27:32,593 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 07:27:32,594 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 07:27:32,594 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 07:27:32,595 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/xcsp/AllInterval-005.c [2022-01-10 07:27:32,649 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb4bca482/c57f407c5d514be6b43eb81d976e7d9c/FLAG6741b9aea [2022-01-10 07:27:33,045 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 07:27:33,045 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/xcsp/AllInterval-005.c [2022-01-10 07:27:33,055 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb4bca482/c57f407c5d514be6b43eb81d976e7d9c/FLAG6741b9aea [2022-01-10 07:27:33,072 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb4bca482/c57f407c5d514be6b43eb81d976e7d9c [2022-01-10 07:27:33,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 07:27:33,079 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 07:27:33,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 07:27:33,082 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 07:27:33,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 07:27:33,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:27:33" (1/1) ... [2022-01-10 07:27:33,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16dc5bc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:27:33, skipping insertion in model container [2022-01-10 07:27:33,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:27:33" (1/1) ... [2022-01-10 07:27:33,093 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 07:27:33,114 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 07:27:33,259 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/xcsp/AllInterval-005.c[2566,2579] [2022-01-10 07:27:33,262 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 07:27:33,281 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 07:27:33,320 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/xcsp/AllInterval-005.c[2566,2579] [2022-01-10 07:27:33,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 07:27:33,332 INFO L208 MainTranslator]: Completed translation [2022-01-10 07:27:33,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:27:33 WrapperNode [2022-01-10 07:27:33,333 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 07:27:33,334 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 07:27:33,334 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 07:27:33,334 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 07:27:33,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:27:33" (1/1) ... [2022-01-10 07:27:33,346 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:27:33" (1/1) ... [2022-01-10 07:27:33,363 INFO L137 Inliner]: procedures = 13, calls = 45, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 107 [2022-01-10 07:27:33,363 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 07:27:33,364 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 07:27:33,364 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 07:27:33,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 07:27:33,370 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:27:33" (1/1) ... [2022-01-10 07:27:33,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:27:33" (1/1) ... [2022-01-10 07:27:33,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:27:33" (1/1) ... [2022-01-10 07:27:33,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:27:33" (1/1) ... [2022-01-10 07:27:33,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:27:33" (1/1) ... [2022-01-10 07:27:33,379 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:27:33" (1/1) ... [2022-01-10 07:27:33,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:27:33" (1/1) ... [2022-01-10 07:27:33,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 07:27:33,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 07:27:33,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 07:27:33,383 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 07:27:33,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:27:33" (1/1) ... [2022-01-10 07:27:33,390 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 07:27:33,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 07:27:33,412 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 07:27:33,428 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 07:27:33,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 07:27:33,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 07:27:33,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 07:27:33,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 07:27:33,443 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2022-01-10 07:27:33,443 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2022-01-10 07:27:33,502 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 07:27:33,503 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 07:27:33,658 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 07:27:33,664 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 07:27:33,664 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-10 07:27:33,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:27:33 BoogieIcfgContainer [2022-01-10 07:27:33,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 07:27:33,667 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 07:27:33,667 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 07:27:33,670 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 07:27:33,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 07:27:33" (1/3) ... [2022-01-10 07:27:33,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14ccd360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 07:27:33, skipping insertion in model container [2022-01-10 07:27:33,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:27:33" (2/3) ... [2022-01-10 07:27:33,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14ccd360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 07:27:33, skipping insertion in model container [2022-01-10 07:27:33,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:27:33" (3/3) ... [2022-01-10 07:27:33,672 INFO L111 eAbstractionObserver]: Analyzing ICFG AllInterval-005.c [2022-01-10 07:27:33,676 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 07:27:33,677 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 07:27:33,712 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 07:27:33,718 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 07:27:33,718 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 07:27:33,736 INFO L276 IsEmpty]: Start isEmpty. Operand has 70 states, 29 states have (on average 1.206896551724138) internal successors, (35), 30 states have internal predecessors, (35), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-01-10 07:27:33,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-01-10 07:27:33,756 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:27:33,757 INFO L514 BasicCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:27:33,758 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:27:33,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:27:33,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1769002494, now seen corresponding path program 1 times [2022-01-10 07:27:33,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:27:33,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [643425043] [2022-01-10 07:27:33,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:27:33,782 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:27:33,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:27:33,785 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 07:27:33,786 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 07:27:33,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:27:33,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 1 conjunts are in the unsatisfiable core [2022-01-10 07:27:34,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:27:34,443 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 1274 proven. 0 refuted. 0 times theorem prover too weak. 1538 trivial. 0 not checked. [2022-01-10 07:27:34,444 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:27:34,445 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:27:34,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [643425043] [2022-01-10 07:27:34,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [643425043] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:27:34,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:27:34,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 07:27:34,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771509329] [2022-01-10 07:27:34,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:27:34,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 07:27:34,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:27:34,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 07:27:34,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 07:27:34,483 INFO L87 Difference]: Start difference. First operand has 70 states, 29 states have (on average 1.206896551724138) internal successors, (35), 30 states have internal predecessors, (35), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-01-10 07:27:34,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:27:34,510 INFO L93 Difference]: Finished difference Result 134 states and 254 transitions. [2022-01-10 07:27:34,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 07:27:34,512 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 214 [2022-01-10 07:27:34,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:27:34,519 INFO L225 Difference]: With dead ends: 134 [2022-01-10 07:27:34,519 INFO L226 Difference]: Without dead ends: 67 [2022-01-10 07:27:34,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 213 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 07:27:34,525 INFO L933 BasicCegarLoop]: 107 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, 107 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 07:27:34,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 07:27:34,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-01-10 07:27:34,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-01-10 07:27:34,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-01-10 07:27:34,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 107 transitions. [2022-01-10 07:27:34,571 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 107 transitions. Word has length 214 [2022-01-10 07:27:34,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:27:34,571 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 107 transitions. [2022-01-10 07:27:34,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-01-10 07:27:34,572 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 107 transitions. [2022-01-10 07:27:34,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-01-10 07:27:34,580 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:27:34,581 INFO L514 BasicCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:27:34,597 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 07:27:34,792 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 07:27:34,792 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:27:34,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:27:34,794 INFO L85 PathProgramCache]: Analyzing trace with hash 829123638, now seen corresponding path program 1 times [2022-01-10 07:27:34,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:27:34,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [533998474] [2022-01-10 07:27:34,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:27:34,796 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:27:34,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:27:34,802 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 07:27:34,805 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 07:27:34,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:27:34,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 84 conjunts are in the unsatisfiable core [2022-01-10 07:27:34,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:27:42,802 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 448 proven. 600 refuted. 0 times theorem prover too weak. 1764 trivial. 0 not checked. [2022-01-10 07:27:42,802 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 07:27:52,319 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:27:52,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [533998474] [2022-01-10 07:27:52,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [533998474] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 07:27:52,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [540098621] [2022-01-10 07:27:52,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:27:52,321 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-01-10 07:27:52,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2022-01-10 07:27:52,327 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-01-10 07:27:52,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-01-10 07:27:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:27:52,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 100 conjunts are in the unsatisfiable core [2022-01-10 07:27:52,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:28:11,812 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 213 proven. 570 refuted. 0 times theorem prover too weak. 2029 trivial. 0 not checked. [2022-01-10 07:28:11,813 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 07:28:34,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [540098621] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 07:28:34,871 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 07:28:34,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 40] total 62 [2022-01-10 07:28:34,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261734599] [2022-01-10 07:28:34,872 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 07:28:34,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-01-10 07:28:34,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:28:34,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-01-10 07:28:34,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1795, Invalid=11777, Unknown=0, NotChecked=0, Total=13572 [2022-01-10 07:28:34,880 INFO L87 Difference]: Start difference. First operand 67 states and 107 transitions. Second operand has 62 states, 37 states have (on average 1.3513513513513513) internal successors, (50), 30 states have internal predecessors, (50), 47 states have call successors, (67), 2 states have call predecessors, (67), 3 states have return successors, (68), 45 states have call predecessors, (68), 47 states have call successors, (68)