/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/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/lcm1_valuebound1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 09:12:41,219 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 09:12:41,220 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 09:12:41,254 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 09:12:41,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 09:12:41,268 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 09:12:41,273 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 09:12:41,276 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 09:12:41,276 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 09:12:41,279 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 09:12:41,284 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 09:12:41,287 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 09:12:41,288 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 09:12:41,303 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 09:12:41,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 09:12:41,304 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 09:12:41,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 09:12:41,310 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 09:12:41,311 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 09:12:41,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 09:12:41,313 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 09:12:41,326 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 09:12:41,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 09:12:41,326 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 09:12:41,327 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 09:12:41,334 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 09:12:41,334 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 09:12:41,334 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 09:12:41,334 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 09:12:41,334 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 09:12:41,334 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 09:12:41,335 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 09:12:41,335 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 09:12:41,335 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 09:12:41,335 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 09:12:41,335 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 09:12:41,335 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 09:12:41,336 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 09:12:41,336 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 09:12:41,336 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 09:12:41,336 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 09:12:41,336 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 09:12:41,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 09:12:41,337 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 09:12:41,337 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 09:12:41,337 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 09:12:41,337 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 09:12:41,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 09:12:41,338 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 09:12:41,338 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 09:12:41,338 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 09:12:41,338 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 09:12:41,338 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 09:12:41,338 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 09:12:41,338 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 09:12:41,528 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 09:12:41,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 09:12:41,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 09:12:41,567 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 09:12:41,567 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 09:12:41,568 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/lcm1_valuebound1.c [2022-01-10 09:12:41,609 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b31faafd9/fbef951f27b94f18a2b32fd59aa02321/FLAG9bbc4ecbd [2022-01-10 09:12:41,958 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 09:12:41,958 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/lcm1_valuebound1.c [2022-01-10 09:12:41,962 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b31faafd9/fbef951f27b94f18a2b32fd59aa02321/FLAG9bbc4ecbd [2022-01-10 09:12:42,398 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b31faafd9/fbef951f27b94f18a2b32fd59aa02321 [2022-01-10 09:12:42,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 09:12:42,412 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 09:12:42,413 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 09:12:42,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 09:12:42,419 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 09:12:42,419 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 09:12:42" (1/1) ... [2022-01-10 09:12:42,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16f3dcaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:12:42, skipping insertion in model container [2022-01-10 09:12:42,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 09:12:42" (1/1) ... [2022-01-10 09:12:42,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 09:12:42,446 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 09:12:42,622 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/lcm1_valuebound1.c[552,565] [2022-01-10 09:12:42,665 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 09:12:42,677 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 09:12:42,689 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/lcm1_valuebound1.c[552,565] [2022-01-10 09:12:42,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 09:12:42,725 INFO L208 MainTranslator]: Completed translation [2022-01-10 09:12:42,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:12:42 WrapperNode [2022-01-10 09:12:42,726 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 09:12:42,727 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 09:12:42,727 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 09:12:42,727 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 09:12:42,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:12:42" (1/1) ... [2022-01-10 09:12:42,736 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:12:42" (1/1) ... [2022-01-10 09:12:42,748 INFO L137 Inliner]: procedures = 14, calls = 25, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 109 [2022-01-10 09:12:42,748 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 09:12:42,749 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 09:12:42,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 09:12:42,749 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 09:12:42,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:12:42" (1/1) ... [2022-01-10 09:12:42,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:12:42" (1/1) ... [2022-01-10 09:12:42,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:12:42" (1/1) ... [2022-01-10 09:12:42,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:12:42" (1/1) ... [2022-01-10 09:12:42,777 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:12:42" (1/1) ... [2022-01-10 09:12:42,780 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:12:42" (1/1) ... [2022-01-10 09:12:42,781 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:12:42" (1/1) ... [2022-01-10 09:12:42,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 09:12:42,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 09:12:42,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 09:12:42,786 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 09:12:42,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:12:42" (1/1) ... [2022-01-10 09:12:42,792 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 09:12:42,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 09:12:42,829 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 09:12:42,847 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 09:12:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 09:12:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 09:12:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 09:12:42,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 09:12:42,903 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 09:12:42,904 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 09:12:43,182 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 09:12:43,187 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 09:12:43,187 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-01-10 09:12:43,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:12:43 BoogieIcfgContainer [2022-01-10 09:12:43,188 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 09:12:43,189 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 09:12:43,189 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 09:12:43,189 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 09:12:43,191 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:12:43" (1/1) ... [2022-01-10 09:12:43,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 09:12:43 BasicIcfg [2022-01-10 09:12:43,263 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 09:12:43,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 09:12:43,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 09:12:43,266 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 09:12:43,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 09:12:42" (1/4) ... [2022-01-10 09:12:43,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cad1841 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 09:12:43, skipping insertion in model container [2022-01-10 09:12:43,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:12:42" (2/4) ... [2022-01-10 09:12:43,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cad1841 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 09:12:43, skipping insertion in model container [2022-01-10 09:12:43,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:12:43" (3/4) ... [2022-01-10 09:12:43,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cad1841 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 09:12:43, skipping insertion in model container [2022-01-10 09:12:43,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 09:12:43" (4/4) ... [2022-01-10 09:12:43,267 INFO L111 eAbstractionObserver]: Analyzing ICFG lcm1_valuebound1.cTransformedIcfg [2022-01-10 09:12:43,270 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 09:12:43,270 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-10 09:12:43,298 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 09:12:43,302 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 09:12:43,303 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-10 09:12:43,310 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 38 states have (on average 1.6578947368421053) internal successors, (63), 43 states have internal predecessors, (63), 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 09:12:43,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-10 09:12:43,313 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 09:12:43,314 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 09:12:43,314 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 09:12:43,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 09:12:43,317 INFO L85 PathProgramCache]: Analyzing trace with hash -571069561, now seen corresponding path program 1 times [2022-01-10 09:12:43,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 09:12:43,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224184084] [2022-01-10 09:12:43,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:12:43,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 09:12:43,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 09:12:43,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 09:12:43,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 09:12:43,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224184084] [2022-01-10 09:12:43,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224184084] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 09:12:43,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 09:12:43,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 09:12:43,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439694134] [2022-01-10 09:12:43,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 09:12:43,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 09:12:43,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 09:12:43,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 09:12:43,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 09:12:43,477 INFO L87 Difference]: Start difference. First operand has 44 states, 38 states have (on average 1.6578947368421053) internal successors, (63), 43 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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 09:12:43,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 09:12:43,498 INFO L93 Difference]: Finished difference Result 85 states and 122 transitions. [2022-01-10 09:12:43,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 09:12:43,499 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-01-10 09:12:43,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 09:12:43,504 INFO L225 Difference]: With dead ends: 85 [2022-01-10 09:12:43,504 INFO L226 Difference]: Without dead ends: 40 [2022-01-10 09:12:43,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 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 09:12:43,508 INFO L933 BasicCegarLoop]: 46 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, 46 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 09:12:43,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 09:12:43,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-01-10 09:12:43,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-01-10 09:12:43,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 35 states have (on average 1.2) internal successors, (42), 39 states have internal predecessors, (42), 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 09:12:43,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 42 transitions. [2022-01-10 09:12:43,532 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 42 transitions. Word has length 17 [2022-01-10 09:12:43,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 09:12:43,533 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 42 transitions. [2022-01-10 09:12:43,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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 09:12:43,534 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2022-01-10 09:12:43,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-10 09:12:43,534 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 09:12:43,535 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 09:12:43,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 09:12:43,535 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 09:12:43,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 09:12:43,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1779496372, now seen corresponding path program 1 times [2022-01-10 09:12:43,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 09:12:43,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123682549] [2022-01-10 09:12:43,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:12:43,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 09:12:43,593 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 09:12:43,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [444578439] [2022-01-10 09:12:43,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:12:43,594 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 09:12:43,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 09:12:43,605 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 09:12:43,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-10 09:12:43,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 09:12:43,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-10 09:12:43,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 09:12:43,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 09:12:43,854 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 09:12:43,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 09:12:43,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123682549] [2022-01-10 09:12:43,855 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 09:12:43,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444578439] [2022-01-10 09:12:43,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444578439] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 09:12:43,855 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 09:12:43,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 09:12:43,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666593390] [2022-01-10 09:12:43,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 09:12:43,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 09:12:43,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 09:12:43,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 09:12:43,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 09:12:43,857 INFO L87 Difference]: Start difference. First operand 40 states and 42 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 09:12:43,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 09:12:43,931 INFO L93 Difference]: Finished difference Result 67 states and 71 transitions. [2022-01-10 09:12:43,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 09:12:43,931 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-01-10 09:12:43,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 09:12:43,932 INFO L225 Difference]: With dead ends: 67 [2022-01-10 09:12:43,932 INFO L226 Difference]: Without dead ends: 61 [2022-01-10 09:12:43,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 09:12:43,933 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 35 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 09:12:43,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 71 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 09:12:43,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-01-10 09:12:43,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 52. [2022-01-10 09:12:43,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 47 states have (on average 1.2127659574468086) internal successors, (57), 51 states have internal predecessors, (57), 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 09:12:43,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions. [2022-01-10 09:12:43,939 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 57 transitions. Word has length 17 [2022-01-10 09:12:43,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 09:12:43,939 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 57 transitions. [2022-01-10 09:12:43,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 09:12:43,940 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 57 transitions. [2022-01-10 09:12:43,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-10 09:12:43,940 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 09:12:43,940 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 09:12:43,957 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-10 09:12:44,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 09:12:44,156 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 09:12:44,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 09:12:44,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1716375385, now seen corresponding path program 1 times [2022-01-10 09:12:44,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 09:12:44,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087394764] [2022-01-10 09:12:44,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:12:44,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 09:12:44,173 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 09:12:44,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [942068561] [2022-01-10 09:12:44,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:12:44,174 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 09:12:44,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 09:12:44,175 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 09:12:44,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-10 09:12:44,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 09:12:44,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 30 conjunts are in the unsatisfiable core [2022-01-10 09:12:44,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 09:12:58,794 WARN L228 SmtUtils]: Spent 14.24s on a formula simplification that was a NOOP. DAG size: 19 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-01-10 09:12:58,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 09:12:58,822 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 09:12:58,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 09:12:58,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087394764] [2022-01-10 09:12:58,822 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 09:12:58,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942068561] [2022-01-10 09:12:58,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942068561] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 09:12:58,823 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 09:12:58,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 09:12:58,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271327764] [2022-01-10 09:12:58,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 09:12:58,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 09:12:58,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 09:12:58,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 09:12:58,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-10 09:12:58,824 INFO L87 Difference]: Start difference. First operand 52 states and 57 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 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 09:13:03,951 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-10 09:13:04,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 09:13:04,416 INFO L93 Difference]: Finished difference Result 75 states and 82 transitions. [2022-01-10 09:13:04,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 09:13:04,416 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-01-10 09:13:04,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 09:13:04,417 INFO L225 Difference]: With dead ends: 75 [2022-01-10 09:13:04,417 INFO L226 Difference]: Without dead ends: 67 [2022-01-10 09:13:04,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 17.8s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 09:13:04,418 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 45 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-01-10 09:13:04,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 100 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-01-10 09:13:04,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-01-10 09:13:04,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 64. [2022-01-10 09:13:04,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 59 states have (on average 1.2033898305084745) internal successors, (71), 63 states have internal predecessors, (71), 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 09:13:04,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 71 transitions. [2022-01-10 09:13:04,424 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 71 transitions. Word has length 21 [2022-01-10 09:13:04,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 09:13:04,425 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 71 transitions. [2022-01-10 09:13:04,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 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 09:13:04,425 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 71 transitions. [2022-01-10 09:13:04,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-01-10 09:13:04,425 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 09:13:04,425 INFO L514 BasicCegarLoop]: trace histogram [2, 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 09:13:04,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-10 09:13:04,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-01-10 09:13:04,645 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 09:13:04,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 09:13:04,646 INFO L85 PathProgramCache]: Analyzing trace with hash 816419945, now seen corresponding path program 1 times [2022-01-10 09:13:04,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 09:13:04,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993067041] [2022-01-10 09:13:04,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:13:04,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 09:13:04,663 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 09:13:04,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [564247117] [2022-01-10 09:13:04,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:13:04,666 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 09:13:04,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 09:13:04,667 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 09:13:04,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-10 09:13:04,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 09:13:04,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 11 conjunts are in the unsatisfiable core [2022-01-10 09:13:04,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 09:13:05,014 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 09:13:05,015 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 09:13:05,015 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 09:13:05,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993067041] [2022-01-10 09:13:05,015 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 09:13:05,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [564247117] [2022-01-10 09:13:05,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [564247117] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 09:13:05,015 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 09:13:05,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 09:13:05,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595619508] [2022-01-10 09:13:05,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 09:13:05,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 09:13:05,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 09:13:05,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 09:13:05,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-10 09:13:05,019 INFO L87 Difference]: Start difference. First operand 64 states and 71 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 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 09:13:05,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 09:13:05,133 INFO L93 Difference]: Finished difference Result 72 states and 78 transitions. [2022-01-10 09:13:05,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 09:13:05,133 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-01-10 09:13:05,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 09:13:05,134 INFO L225 Difference]: With dead ends: 72 [2022-01-10 09:13:05,135 INFO L226 Difference]: Without dead ends: 46 [2022-01-10 09:13:05,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-01-10 09:13:05,137 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 62 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 09:13:05,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 22 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 09:13:05,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-01-10 09:13:05,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-01-10 09:13:05,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 44 states have (on average 1.0909090909090908) internal successors, (48), 45 states have internal predecessors, (48), 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 09:13:05,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 48 transitions. [2022-01-10 09:13:05,151 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 48 transitions. Word has length 25 [2022-01-10 09:13:05,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 09:13:05,151 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 48 transitions. [2022-01-10 09:13:05,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 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 09:13:05,152 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 48 transitions. [2022-01-10 09:13:05,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-10 09:13:05,153 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 09:13:05,153 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 09:13:05,195 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-01-10 09:13:05,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 09:13:05,374 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 09:13:05,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 09:13:05,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1998703169, now seen corresponding path program 1 times [2022-01-10 09:13:05,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 09:13:05,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595357495] [2022-01-10 09:13:05,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:13:05,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 09:13:05,404 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 09:13:05,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1842833300] [2022-01-10 09:13:05,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:13:05,404 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 09:13:05,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 09:13:05,416 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 09:13:05,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-10 09:13:05,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 09:13:05,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 11 conjunts are in the unsatisfiable core [2022-01-10 09:13:05,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 09:13:05,723 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 09:13:05,723 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 09:13:05,724 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 09:13:05,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595357495] [2022-01-10 09:13:05,724 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 09:13:05,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842833300] [2022-01-10 09:13:05,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1842833300] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 09:13:05,724 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 09:13:05,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 09:13:05,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366088243] [2022-01-10 09:13:05,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 09:13:05,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 09:13:05,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 09:13:05,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 09:13:05,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-10 09:13:05,726 INFO L87 Difference]: Start difference. First operand 46 states and 48 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 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 09:13:05,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 09:13:05,820 INFO L93 Difference]: Finished difference Result 46 states and 48 transitions. [2022-01-10 09:13:05,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 09:13:05,821 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-10 09:13:05,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 09:13:05,821 INFO L225 Difference]: With dead ends: 46 [2022-01-10 09:13:05,821 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 09:13:05,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-01-10 09:13:05,822 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 50 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 09:13:05,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 18 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 09:13:05,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 09:13:05,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 09:13:05,822 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 09:13:05,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 09:13:05,823 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2022-01-10 09:13:05,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 09:13:05,823 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 09:13:05,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 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 09:13:05,823 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 09:13:05,823 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 09:13:05,825 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-01-10 09:13:05,825 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-01-10 09:13:05,825 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2022-01-10 09:13:05,825 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2022-01-10 09:13:05,825 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-01-10 09:13:05,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-10 09:13:06,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 09:13:06,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-10 09:13:06,911 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-10 09:13:06,911 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-10 09:13:06,912 INFO L858 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2022-01-10 09:13:06,912 INFO L858 garLoopResultBuilder]: For program point L11(lines 11 13) no Hoare annotation was computed. [2022-01-10 09:13:06,912 INFO L858 garLoopResultBuilder]: For program point L12-2(line 12) no Hoare annotation was computed. [2022-01-10 09:13:06,912 INFO L858 garLoopResultBuilder]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2022-01-10 09:13:06,912 INFO L858 garLoopResultBuilder]: For program point L12-4(line 12) no Hoare annotation was computed. [2022-01-10 09:13:06,912 INFO L858 garLoopResultBuilder]: For program point L11-2(lines 11 13) no Hoare annotation was computed. [2022-01-10 09:13:06,912 INFO L858 garLoopResultBuilder]: For program point L12-6(line 12) no Hoare annotation was computed. [2022-01-10 09:13:06,912 INFO L858 garLoopResultBuilder]: For program point L11-3(lines 11 13) no Hoare annotation was computed. [2022-01-10 09:13:06,912 INFO L858 garLoopResultBuilder]: For program point L12-8(line 12) no Hoare annotation was computed. [2022-01-10 09:13:06,912 INFO L858 garLoopResultBuilder]: For program point L11-4(lines 11 13) no Hoare annotation was computed. [2022-01-10 09:13:06,913 INFO L858 garLoopResultBuilder]: For program point L12-10(line 12) no Hoare annotation was computed. [2022-01-10 09:13:06,913 INFO L858 garLoopResultBuilder]: For program point L11-5(lines 11 13) no Hoare annotation was computed. [2022-01-10 09:13:06,913 INFO L854 garLoopResultBuilder]: At program point L53-2(lines 40 60) the Hoare annotation is: (and (<= |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int| 0) (<= |ULTIMATE.start_ULTIMATE.start_assume_abort_if_not_~cond#1Int| 1) (<= 0 |ULTIMATE.start_ULTIMATE.start_assume_abort_if_not_~cond#1Int|) (<= 1 |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) (<= 1 |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) (= |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int|) (<= |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| 1) (<= |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 1) (<= 0 |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int|) (= |ULTIMATE.start_ULTIMATE.start_main_~a~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) (= |ULTIMATE.start_ULTIMATE.start_main_~u~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int|)) [2022-01-10 09:13:06,913 INFO L858 garLoopResultBuilder]: For program point L40-2(lines 40 60) no Hoare annotation was computed. [2022-01-10 09:13:06,913 INFO L858 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2022-01-10 09:13:06,913 INFO L858 garLoopResultBuilder]: For program point L15-9(lines 15 18) no Hoare annotation was computed. [2022-01-10 09:13:06,913 INFO L858 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed. [2022-01-10 09:13:06,913 INFO L854 garLoopResultBuilder]: At program point L15-2(lines 14 20) the Hoare annotation is: (and (= 1 |ULTIMATE.start_ULTIMATE.start___VERIFIER_assert_~cond#1Int|) (<= |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int| 0) (<= |ULTIMATE.start_ULTIMATE.start_assume_abort_if_not_~cond#1Int| 1) (<= 0 |ULTIMATE.start_ULTIMATE.start_assume_abort_if_not_~cond#1Int|) (<= 1 |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) (<= 1 |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) (= |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int|) (<= |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| 1) (<= |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 1) (<= 0 |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int|) (= |ULTIMATE.start_ULTIMATE.start_main_~a~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) (= |ULTIMATE.start_ULTIMATE.start_main_~u~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int|)) [2022-01-10 09:13:06,913 INFO L858 garLoopResultBuilder]: For program point L16-3(lines 16 17) no Hoare annotation was computed. [2022-01-10 09:13:06,913 INFO L854 garLoopResultBuilder]: At program point L15-11(lines 14 20) the Hoare annotation is: (and (= 1 |ULTIMATE.start_ULTIMATE.start___VERIFIER_assert_~cond#1Int|) (= (mod (+ (mod (* |ULTIMATE.start_ULTIMATE.start_main_~u~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) 4294967296) (mod (* |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) 4294967296)) 4294967296) (mod (* |ULTIMATE.start_ULTIMATE.start_main_~a~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int|) 4294967296)) (= |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~a~0#1Int|) (= |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int|) (= |ULTIMATE.start_ULTIMATE.start_main_~a~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) (= |ULTIMATE.start_ULTIMATE.start_main_~u~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int|)) [2022-01-10 09:13:06,913 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2022-01-10 09:13:06,913 INFO L858 garLoopResultBuilder]: For program point L42(lines 42 43) no Hoare annotation was computed. [2022-01-10 09:13:06,913 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2022-01-10 09:13:06,913 INFO L858 garLoopResultBuilder]: For program point L15-12(lines 15 18) no Hoare annotation was computed. [2022-01-10 09:13:06,914 INFO L854 garLoopResultBuilder]: At program point L45-2(lines 45 51) the Hoare annotation is: (and (= 1 |ULTIMATE.start_ULTIMATE.start___VERIFIER_assert_~cond#1Int|) (<= |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int| 0) (<= |ULTIMATE.start_ULTIMATE.start_assume_abort_if_not_~cond#1Int| 1) (<= 0 |ULTIMATE.start_ULTIMATE.start_assume_abort_if_not_~cond#1Int|) (<= 1 |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) (<= 1 |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) (= |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int|) (<= |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| 1) (<= |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 1) (<= 0 |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int|) (= |ULTIMATE.start_ULTIMATE.start_main_~a~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) (= |ULTIMATE.start_ULTIMATE.start_main_~u~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int|)) [2022-01-10 09:13:06,914 INFO L858 garLoopResultBuilder]: For program point L16-4(lines 16 17) no Hoare annotation was computed. [2022-01-10 09:13:06,914 INFO L861 garLoopResultBuilder]: At program point L15-14(lines 14 20) the Hoare annotation is: true [2022-01-10 09:13:06,914 INFO L858 garLoopResultBuilder]: For program point L53-1(lines 40 60) no Hoare annotation was computed. [2022-01-10 09:13:06,914 INFO L858 garLoopResultBuilder]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2022-01-10 09:13:06,914 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2022-01-10 09:13:06,914 INFO L861 garLoopResultBuilder]: At program point L67(lines 22 68) the Hoare annotation is: true [2022-01-10 09:13:06,914 INFO L858 garLoopResultBuilder]: For program point L15-6(lines 15 18) no Hoare annotation was computed. [2022-01-10 09:13:06,914 INFO L858 garLoopResultBuilder]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2022-01-10 09:13:06,914 INFO L854 garLoopResultBuilder]: At program point L15-5(lines 14 20) the Hoare annotation is: (and (= 1 |ULTIMATE.start_ULTIMATE.start___VERIFIER_assert_~cond#1Int|) (<= |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int| 0) (<= |ULTIMATE.start_ULTIMATE.start_assume_abort_if_not_~cond#1Int| 1) (<= 0 |ULTIMATE.start_ULTIMATE.start_assume_abort_if_not_~cond#1Int|) (<= 1 |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) (<= 1 |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) (= |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int|) (<= |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| 1) (<= |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 1) (<= 0 |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int|) (= |ULTIMATE.start_ULTIMATE.start_main_~a~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) (= |ULTIMATE.start_ULTIMATE.start_main_~u~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int|)) [2022-01-10 09:13:06,914 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-10 09:13:06,914 INFO L858 garLoopResultBuilder]: For program point L16-2(lines 16 17) no Hoare annotation was computed. [2022-01-10 09:13:06,914 INFO L854 garLoopResultBuilder]: At program point L15-8(lines 14 20) the Hoare annotation is: (and (= 1 |ULTIMATE.start_ULTIMATE.start___VERIFIER_assert_~cond#1Int|) (<= |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int| 0) (<= |ULTIMATE.start_ULTIMATE.start_assume_abort_if_not_~cond#1Int| 1) (<= 0 |ULTIMATE.start_ULTIMATE.start_assume_abort_if_not_~cond#1Int|) (<= 1 |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) (<= 1 |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) (= |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int|) (<= |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| 1) (<= |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 1) (<= 0 |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int|) (= |ULTIMATE.start_ULTIMATE.start_main_~a~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) (= |ULTIMATE.start_ULTIMATE.start_main_~u~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int|)) [2022-01-10 09:13:06,914 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2022-01-10 09:13:06,914 INFO L858 garLoopResultBuilder]: For program point L47(lines 47 48) no Hoare annotation was computed. [2022-01-10 09:13:06,914 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-10 09:13:06,915 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2022-01-10 09:13:06,915 INFO L858 garLoopResultBuilder]: For program point L55(lines 55 56) no Hoare annotation was computed. [2022-01-10 09:13:06,917 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-01-10 09:13:06,917 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 09:13:06,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 09:13:06 BasicIcfg [2022-01-10 09:13:06,949 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 09:13:06,950 INFO L158 Benchmark]: Toolchain (without parser) took 24538.08ms. Allocated memory was 232.8MB in the beginning and 341.8MB in the end (delta: 109.1MB). Free memory was 178.4MB in the beginning and 196.6MB in the end (delta: -18.2MB). Peak memory consumption was 92.1MB. Max. memory is 8.0GB. [2022-01-10 09:13:06,950 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 232.8MB. Free memory is still 194.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 09:13:06,950 INFO L158 Benchmark]: CACSL2BoogieTranslator took 312.60ms. Allocated memory is still 232.8MB. Free memory was 178.3MB in the beginning and 204.8MB in the end (delta: -26.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-01-10 09:13:06,950 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.85ms. Allocated memory is still 232.8MB. Free memory was 204.8MB in the beginning and 203.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 09:13:06,951 INFO L158 Benchmark]: Boogie Preprocessor took 33.69ms. Allocated memory is still 232.8MB. Free memory was 203.2MB in the beginning and 201.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 09:13:06,951 INFO L158 Benchmark]: RCFGBuilder took 402.50ms. Allocated memory is still 232.8MB. Free memory was 201.6MB in the beginning and 190.1MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-01-10 09:13:06,951 INFO L158 Benchmark]: IcfgTransformer took 74.07ms. Allocated memory is still 232.8MB. Free memory was 190.1MB in the beginning and 184.9MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2022-01-10 09:13:06,951 INFO L158 Benchmark]: TraceAbstraction took 23685.79ms. Allocated memory was 232.8MB in the beginning and 341.8MB in the end (delta: 109.1MB). Free memory was 184.3MB in the beginning and 196.6MB in the end (delta: -12.3MB). Peak memory consumption was 97.8MB. Max. memory is 8.0GB. [2022-01-10 09:13:06,953 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 232.8MB. Free memory is still 194.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 312.60ms. Allocated memory is still 232.8MB. Free memory was 178.3MB in the beginning and 204.8MB in the end (delta: -26.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 21.85ms. Allocated memory is still 232.8MB. Free memory was 204.8MB in the beginning and 203.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.69ms. Allocated memory is still 232.8MB. Free memory was 203.2MB in the beginning and 201.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 402.50ms. Allocated memory is still 232.8MB. Free memory was 201.6MB in the beginning and 190.1MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * IcfgTransformer took 74.07ms. Allocated memory is still 232.8MB. Free memory was 190.1MB in the beginning and 184.9MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * TraceAbstraction took 23685.79ms. Allocated memory was 232.8MB in the beginning and 341.8MB in the end (delta: 109.1MB). Free memory was 184.3MB in the beginning and 196.6MB in the end (delta: -12.3MB). Peak memory consumption was 97.8MB. 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: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 23.6s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 192 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 192 mSDsluCounter, 257 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 130 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 187 IncrementalHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 127 mSDtfsCounter, 187 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 107 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 18.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=3, InterpolantAutomatonStates: 27, 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, 5 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 16 NumberOfFragments, 219 HoareAnnotationTreeSize, 8 FomulaSimplifications, 62 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 243 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 15.3s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 598 SizeOfPredicates, 40 NumberOfNonLiveVariables, 974 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 10/10 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 5 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((x == a && cond == 1bv32) && u == b) && y == b) && ~bvadd16(~zero_extendFrom32To33(~bvmul32(~zero_extendFrom32To64(x), ~zero_extendFrom32To64(u))[31:0]), ~zero_extendFrom32To33(~bvmul32(~zero_extendFrom32To64(v), ~zero_extendFrom32To64(y))[31:0]))[31:0] == ~bvmul32(~zero_extendFrom32To64(a), ~zero_extendFrom32To64(b))[31:0]) && y == a - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((((((((x == a && ~bvule32(1bv32, y)) && cond == 1bv32) && ~bvule32(v, 0bv32)) && u == b) && y == b) && ~bvule32(0bv32, cond)) && ~bvule32(x, 1bv32)) && ~bvule32(1bv32, x)) && ~bvule32(y, 1bv32)) && ~bvule32(0bv32, v)) && ~bvule32(cond, 1bv32) - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (((((((((x == a && ~bvule32(1bv32, y)) && ~bvule32(v, 0bv32)) && u == b) && y == b) && ~bvule32(0bv32, cond)) && ~bvule32(x, 1bv32)) && ~bvule32(1bv32, x)) && ~bvule32(y, 1bv32)) && ~bvule32(0bv32, v)) && ~bvule32(cond, 1bv32) - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: ((((((((((x == a && ~bvule32(1bv32, y)) && cond == 1bv32) && ~bvule32(v, 0bv32)) && u == b) && y == b) && ~bvule32(0bv32, cond)) && ~bvule32(x, 1bv32)) && ~bvule32(1bv32, x)) && ~bvule32(y, 1bv32)) && ~bvule32(0bv32, v)) && ~bvule32(cond, 1bv32) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((((((((x == a && ~bvule32(1bv32, y)) && cond == 1bv32) && ~bvule32(v, 0bv32)) && u == b) && y == b) && ~bvule32(0bv32, cond)) && ~bvule32(x, 1bv32)) && ~bvule32(1bv32, x)) && ~bvule32(y, 1bv32)) && ~bvule32(0bv32, v)) && ~bvule32(cond, 1bv32) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((((((((x == a && ~bvule32(1bv32, y)) && cond == 1bv32) && ~bvule32(v, 0bv32)) && u == b) && y == b) && ~bvule32(0bv32, cond)) && ~bvule32(x, 1bv32)) && ~bvule32(1bv32, x)) && ~bvule32(y, 1bv32)) && ~bvule32(0bv32, v)) && ~bvule32(cond, 1bv32) RESULT: Ultimate proved your program to be correct! [2022-01-10 09:13:06,984 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...