/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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/loops/sum03-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 12:13:55,262 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 12:13:55,264 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 12:13:55,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 12:13:55,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 12:13:55,310 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 12:13:55,311 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 12:13:55,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 12:13:55,315 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 12:13:55,319 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 12:13:55,319 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 12:13:55,320 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 12:13:55,321 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 12:13:55,322 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 12:13:55,323 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 12:13:55,325 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 12:13:55,326 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 12:13:55,326 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 12:13:55,328 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 12:13:55,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 12:13:55,332 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 12:13:55,333 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 12:13:55,334 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 12:13:55,335 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 12:13:55,339 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 12:13:55,345 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 12:13:55,346 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 12:13:55,346 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 12:13:55,347 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-01-31 12:13:55,355 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 12:13:55,355 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 12:13:55,357 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 12:13:55,357 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 12:13:55,357 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 12:13:55,357 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 12:13:55,357 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 12:13:55,357 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 12:13:55,357 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 12:13:55,357 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 12:13:55,358 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 12:13:55,358 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 12:13:55,358 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 12:13:55,358 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 12:13:55,358 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 12:13:55,358 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 12:13:55,358 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 12:13:55,358 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 12:13:55,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 12:13:55,359 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 12:13:55,359 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-31 12:13:55,359 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-31 12:13:55,359 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 12:13:55,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 12:13:55,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 12:13:55,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 12:13:55,568 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 12:13:55,571 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 12:13:55,572 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/sum03-2.i [2022-01-31 12:13:55,616 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b61dd14d/e95cf7661ff7460fa8b9bb91e010a4f0/FLAG94b1d39a3 [2022-01-31 12:13:55,905 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 12:13:55,905 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/sum03-2.i [2022-01-31 12:13:55,909 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b61dd14d/e95cf7661ff7460fa8b9bb91e010a4f0/FLAG94b1d39a3 [2022-01-31 12:13:56,346 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b61dd14d/e95cf7661ff7460fa8b9bb91e010a4f0 [2022-01-31 12:13:56,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 12:13:56,349 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-31 12:13:56,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 12:13:56,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 12:13:56,354 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 12:13:56,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 12:13:56" (1/1) ... [2022-01-31 12:13:56,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66936abd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 12:13:56, skipping insertion in model container [2022-01-31 12:13:56,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 12:13:56" (1/1) ... [2022-01-31 12:13:56,360 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 12:13:56,370 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 12:13:56,464 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/sum03-2.i[807,820] [2022-01-31 12:13:56,474 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 12:13:56,479 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 12:13:56,492 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/sum03-2.i[807,820] [2022-01-31 12:13:56,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 12:13:56,528 INFO L208 MainTranslator]: Completed translation [2022-01-31 12:13:56,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 12:13:56 WrapperNode [2022-01-31 12:13:56,528 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 12:13:56,529 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 12:13:56,529 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 12:13:56,529 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 12:13:56,538 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 12:13:56" (1/1) ... [2022-01-31 12:13:56,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 12:13:56" (1/1) ... [2022-01-31 12:13:56,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 12:13:56" (1/1) ... [2022-01-31 12:13:56,544 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 12:13:56" (1/1) ... [2022-01-31 12:13:56,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 12:13:56" (1/1) ... [2022-01-31 12:13:56,549 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 12:13:56" (1/1) ... [2022-01-31 12:13:56,553 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 12:13:56" (1/1) ... [2022-01-31 12:13:56,556 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 12:13:56,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 12:13:56,557 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 12:13:56,558 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 12:13:56,558 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 12:13:56" (1/1) ... [2022-01-31 12:13:56,563 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 12:13:56,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 12:13:56,581 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) [2022-01-31 12:13:56,597 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 [2022-01-31 12:13:56,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 12:13:56,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 12:13:56,619 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 12:13:56,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-01-31 12:13:56,619 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 12:13:56,619 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 12:13:56,619 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 12:13:56,619 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-01-31 12:13:56,619 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-01-31 12:13:56,620 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 12:13:56,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 12:13:56,620 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-01-31 12:13:56,621 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2022-01-31 12:13:56,621 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 12:13:56,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 12:13:56,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 12:13:56,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 12:13:56,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 12:13:56,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 12:13:56,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 12:13:56,674 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 12:13:56,675 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 12:13:56,739 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 12:13:56,743 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 12:13:56,743 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-31 12:13:56,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 12:13:56 BoogieIcfgContainer [2022-01-31 12:13:56,745 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 12:13:56,745 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-31 12:13:56,745 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-31 12:13:56,746 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-31 12:13:56,748 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 12:13:56" (1/1) ... [2022-01-31 12:13:56,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 12:13:56 BasicIcfg [2022-01-31 12:13:56,762 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-31 12:13:56,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 12:13:56,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 12:13:56,765 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 12:13:56,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 12:13:56" (1/4) ... [2022-01-31 12:13:56,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@280da58d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 12:13:56, skipping insertion in model container [2022-01-31 12:13:56,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 12:13:56" (2/4) ... [2022-01-31 12:13:56,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@280da58d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 12:13:56, skipping insertion in model container [2022-01-31 12:13:56,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 12:13:56" (3/4) ... [2022-01-31 12:13:56,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@280da58d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 12:13:56, skipping insertion in model container [2022-01-31 12:13:56,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 12:13:56" (4/4) ... [2022-01-31 12:13:56,767 INFO L111 eAbstractionObserver]: Analyzing ICFG sum03-2.iJordan [2022-01-31 12:13:56,771 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-01-31 12:13:56,771 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 12:13:56,797 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 12:13:56,802 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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 [2022-01-31 12:13:56,802 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 12:13:56,810 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 10 states have (on average 1.4) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-31 12:13:56,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-31 12:13:56,814 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 12:13:56,815 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 12:13:56,815 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 12:13:56,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 12:13:56,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1196085861, now seen corresponding path program 1 times [2022-01-31 12:13:56,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 12:13:56,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859031472] [2022-01-31 12:13:56,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 12:13:56,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 12:13:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 12:13:57,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 12:13:57,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 12:13:57,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 12:13:57,207 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 12:13:57,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859031472] [2022-01-31 12:13:57,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859031472] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 12:13:57,207 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 12:13:57,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-31 12:13:57,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262338959] [2022-01-31 12:13:57,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 12:13:57,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-31 12:13:57,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 12:13:57,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-31 12:13:57,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-31 12:13:57,245 INFO L87 Difference]: Start difference. First operand has 18 states, 10 states have (on average 1.4) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 12:13:57,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 12:13:57,385 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2022-01-31 12:13:57,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-31 12:13:57,387 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-01-31 12:13:57,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 12:13:57,391 INFO L225 Difference]: With dead ends: 21 [2022-01-31 12:13:57,391 INFO L226 Difference]: Without dead ends: 21 [2022-01-31 12:13:57,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-01-31 12:13:57,394 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 16 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 12:13:57,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 27 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 12:13:57,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-01-31 12:13:57,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2022-01-31 12:13:57,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 13 states have internal predecessors, (13), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-31 12:13:57,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2022-01-31 12:13:57,418 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 11 [2022-01-31 12:13:57,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 12:13:57,419 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2022-01-31 12:13:57,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 12:13:57,419 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2022-01-31 12:13:57,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-31 12:13:57,420 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 12:13:57,420 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 12:13:57,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 12:13:57,421 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 12:13:57,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 12:13:57,424 INFO L85 PathProgramCache]: Analyzing trace with hash 593480926, now seen corresponding path program 1 times [2022-01-31 12:13:57,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 12:13:57,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498640447] [2022-01-31 12:13:57,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 12:13:57,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 12:13:57,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 12:13:57,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 12:13:57,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 12:13:57,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 12:13:57,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 12:13:57,671 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 12:13:57,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 12:13:57,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498640447] [2022-01-31 12:13:57,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498640447] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 12:13:57,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086173101] [2022-01-31 12:13:57,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 12:13:57,672 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 12:13:57,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 12:13:57,675 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) [2022-01-31 12:13:57,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-31 12:13:57,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 12:13:57,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 15 conjunts are in the unsatisfiable core [2022-01-31 12:13:57,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 12:13:57,910 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 12:13:57,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 12:13:58,179 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 12:13:58,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086173101] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 12:13:58,180 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-31 12:13:58,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 14 [2022-01-31 12:13:58,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484455697] [2022-01-31 12:13:58,181 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-31 12:13:58,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-31 12:13:58,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 12:13:58,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-31 12:13:58,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-01-31 12:13:58,182 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 14 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 6 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-31 12:13:58,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 12:13:58,433 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2022-01-31 12:13:58,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-31 12:13:58,433 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 6 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 17 [2022-01-31 12:13:58,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 12:13:58,434 INFO L225 Difference]: With dead ends: 23 [2022-01-31 12:13:58,434 INFO L226 Difference]: Without dead ends: 0 [2022-01-31 12:13:58,436 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2022-01-31 12:13:58,437 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 11 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 12:13:58,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 46 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 12:13:58,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-31 12:13:58,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-31 12:13:58,438 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) [2022-01-31 12:13:58,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-31 12:13:58,438 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2022-01-31 12:13:58,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 12:13:58,438 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-31 12:13:58,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 6 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-31 12:13:58,439 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-31 12:13:58,439 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-31 12:13:58,440 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 12:13:58,461 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-31 12:13:58,651 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 [2022-01-31 12:13:58,654 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-31 12:13:58,655 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 12:13:58,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 12:13:58 BasicIcfg [2022-01-31 12:13:58,657 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 12:13:58,657 INFO L158 Benchmark]: Toolchain (without parser) took 2308.03ms. Allocated memory was 185.6MB in the beginning and 234.9MB in the end (delta: 49.3MB). Free memory was 130.6MB in the beginning and 96.4MB in the end (delta: 34.2MB). Peak memory consumption was 83.1MB. Max. memory is 8.0GB. [2022-01-31 12:13:58,658 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 185.6MB. Free memory is still 146.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 12:13:58,658 INFO L158 Benchmark]: CACSL2BoogieTranslator took 176.41ms. Allocated memory was 185.6MB in the beginning and 234.9MB in the end (delta: 49.3MB). Free memory was 130.4MB in the beginning and 209.1MB in the end (delta: -78.7MB). Peak memory consumption was 12.0MB. Max. memory is 8.0GB. [2022-01-31 12:13:58,659 INFO L158 Benchmark]: Boogie Preprocessor took 27.29ms. Allocated memory is still 234.9MB. Free memory was 209.1MB in the beginning and 207.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-31 12:13:58,659 INFO L158 Benchmark]: RCFGBuilder took 187.68ms. Allocated memory is still 234.9MB. Free memory was 207.6MB in the beginning and 196.6MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-01-31 12:13:58,659 INFO L158 Benchmark]: IcfgTransformer took 16.68ms. Allocated memory is still 234.9MB. Free memory was 196.6MB in the beginning and 195.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-31 12:13:58,660 INFO L158 Benchmark]: TraceAbstraction took 1894.01ms. Allocated memory is still 234.9MB. Free memory was 195.0MB in the beginning and 96.4MB in the end (delta: 98.6MB). Peak memory consumption was 98.6MB. Max. memory is 8.0GB. [2022-01-31 12:13:58,664 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 185.6MB. Free memory is still 146.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 176.41ms. Allocated memory was 185.6MB in the beginning and 234.9MB in the end (delta: 49.3MB). Free memory was 130.4MB in the beginning and 209.1MB in the end (delta: -78.7MB). Peak memory consumption was 12.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.29ms. Allocated memory is still 234.9MB. Free memory was 209.1MB in the beginning and 207.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 187.68ms. Allocated memory is still 234.9MB. Free memory was 207.6MB in the beginning and 196.6MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 16.68ms. Allocated memory is still 234.9MB. Free memory was 196.6MB in the beginning and 195.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * TraceAbstraction took 1894.01ms. Allocated memory is still 234.9MB. Free memory was 195.0MB in the beginning and 96.4MB in the end (delta: 98.6MB). Peak memory consumption was 98.6MB. 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: 15]: 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 4 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 28 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 73 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 54 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 110 IncrementalHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 19 mSDtfsCounter, 110 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=1, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 345 SizeOfPredicates, 1 NumberOfNonLiveVariables, 69 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 6/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-31 12:13:58,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...