/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/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/loop-lit/jm2006_variant.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 08:25:38,658 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 08:25:38,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 08:25:38,701 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-20 08:25:38,737 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 08:25:38,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 08:25:38,739 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 08:25:38,739 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-03-20 08:25:38,758 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 08:25:38,759 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 08:25:38,760 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-20 08:25:38,760 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-20 08:25:38,761 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-20 08:25:38,761 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-20 08:25:38,761 INFO L138 SettingsManager]: * Use SBE=true [2022-03-20 08:25:38,761 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 08:25:38,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 08:25:38,762 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 08:25:38,762 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 08:25:38,762 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 08:25:38,762 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 08:25:38,762 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 08:25:38,762 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 08:25:38,762 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 08:25:38,762 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 08:25:38,763 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 08:25:38,763 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 08:25:38,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 08:25:38,763 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 08:25:38,763 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-20 08:25:38,763 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-20 08:25:38,763 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 08:25:38,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-20 08:25:38,764 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 08:25:38,764 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-03-20 08:25:38,764 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-03-20 08:25:38,764 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-20 08:25:38,764 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 08:25:38,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 08:25:38,991 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 08:25:38,993 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 08:25:38,994 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 08:25:38,994 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 08:25:38,995 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/jm2006_variant.i [2022-03-20 08:25:39,053 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e73106d7f/a123e12345ef49b6acda81e80f771455/FLAGd496cc308 [2022-03-20 08:25:39,423 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 08:25:39,424 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006_variant.i [2022-03-20 08:25:39,428 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e73106d7f/a123e12345ef49b6acda81e80f771455/FLAGd496cc308 [2022-03-20 08:25:39,437 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e73106d7f/a123e12345ef49b6acda81e80f771455 [2022-03-20 08:25:39,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 08:25:39,440 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-20 08:25:39,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 08:25:39,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 08:25:39,443 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 08:25:39,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 08:25:39" (1/1) ... [2022-03-20 08:25:39,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@454990f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 08:25:39, skipping insertion in model container [2022-03-20 08:25:39,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 08:25:39" (1/1) ... [2022-03-20 08:25:39,449 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 08:25:39,457 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 08:25:39,573 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006_variant.i[895,908] [2022-03-20 08:25:39,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 08:25:39,595 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 08:25:39,604 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006_variant.i[895,908] [2022-03-20 08:25:39,609 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 08:25:39,618 INFO L208 MainTranslator]: Completed translation [2022-03-20 08:25:39,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 08:25:39 WrapperNode [2022-03-20 08:25:39,619 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 08:25:39,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 08:25:39,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 08:25:39,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 08:25:39,627 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 08:25:39" (1/1) ... [2022-03-20 08:25:39,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 08:25:39" (1/1) ... [2022-03-20 08:25:39,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 08:25:39" (1/1) ... [2022-03-20 08:25:39,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 08:25:39" (1/1) ... [2022-03-20 08:25:39,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 08:25:39" (1/1) ... [2022-03-20 08:25:39,645 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 08:25:39" (1/1) ... [2022-03-20 08:25:39,648 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 08:25:39" (1/1) ... [2022-03-20 08:25:39,650 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 08:25:39,651 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 08:25:39,651 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 08:25:39,651 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 08:25:39,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 08:25:39" (1/1) ... [2022-03-20 08:25:39,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 08:25:39,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 08:25:39,688 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) [2022-03-20 08:25:39,706 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 [2022-03-20 08:25:39,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 08:25:39,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 08:25:39,721 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 08:25:39,721 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-03-20 08:25:39,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-03-20 08:25:39,721 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 08:25:39,721 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 08:25:39,722 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 08:25:39,722 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-03-20 08:25:39,722 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-03-20 08:25:39,722 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 08:25:39,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 08:25:39,723 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-03-20 08:25:39,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-20 08:25:39,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 08:25:39,723 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 08:25:39,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 08:25:39,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 08:25:39,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 08:25:39,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 08:25:39,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 08:25:39,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 08:25:39,786 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 08:25:39,787 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 08:25:39,893 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 08:25:39,898 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 08:25:39,898 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 08:25:39,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 08:25:39 BoogieIcfgContainer [2022-03-20 08:25:39,899 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 08:25:39,900 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-20 08:25:39,900 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-20 08:25:39,900 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-20 08:25:39,903 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 08:25:39" (1/1) ... [2022-03-20 08:25:39,904 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-03-20 08:26:04,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 08:26:04 BasicIcfg [2022-03-20 08:26:04,298 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-20 08:26:04,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 08:26:04,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 08:26:04,301 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 08:26:04,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 08:25:39" (1/4) ... [2022-03-20 08:26:04,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@670dfc05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 08:26:04, skipping insertion in model container [2022-03-20 08:26:04,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 08:25:39" (2/4) ... [2022-03-20 08:26:04,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@670dfc05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 08:26:04, skipping insertion in model container [2022-03-20 08:26:04,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 08:25:39" (3/4) ... [2022-03-20 08:26:04,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@670dfc05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 08:26:04, skipping insertion in model container [2022-03-20 08:26:04,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 08:26:04" (4/4) ... [2022-03-20 08:26:04,303 INFO L111 eAbstractionObserver]: Analyzing ICFG jm2006_variant.iqvasr [2022-03-20 08:26:04,306 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-20 08:26:04,306 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 08:26:04,338 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 08:26:04,342 INFO L340 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=FINITE_AUTOMATA, 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 [2022-03-20 08:26:04,342 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 08:26:04,352 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 14 states have (on average 1.5) internal successors, (21), 16 states have internal predecessors, (21), 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) [2022-03-20 08:26:04,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-03-20 08:26:04,355 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 08:26:04,355 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 08:26:04,355 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 08:26:04,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 08:26:04,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1409552995, now seen corresponding path program 1 times [2022-03-20 08:26:04,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 08:26:04,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260118874] [2022-03-20 08:26:04,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 08:26:04,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 08:26:04,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 08:26:04,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 08:26:04,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 08:26:04,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 08:26:04,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 08:26:04,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260118874] [2022-03-20 08:26:04,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260118874] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 08:26:04,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 08:26:04,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-20 08:26:04,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475520020] [2022-03-20 08:26:04,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 08:26:04,476 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-20 08:26:04,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 08:26:04,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-20 08:26:04,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-20 08:26:04,498 INFO L87 Difference]: Start difference. First operand has 22 states, 14 states have (on average 1.5) internal successors, (21), 16 states have internal predecessors, (21), 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 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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) [2022-03-20 08:26:04,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 08:26:04,529 INFO L93 Difference]: Finished difference Result 35 states and 42 transitions. [2022-03-20 08:26:04,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-20 08:26:04,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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 14 [2022-03-20 08:26:04,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 08:26:04,541 INFO L225 Difference]: With dead ends: 35 [2022-03-20 08:26:04,541 INFO L226 Difference]: Without dead ends: 15 [2022-03-20 08:26:04,543 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-20 08:26:04,545 INFO L913 BasicCegarLoop]: 23 mSDtfsCounter, 16 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 08:26:04,546 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 26 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 08:26:04,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-03-20 08:26:04,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-03-20 08:26:04,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 3 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) [2022-03-20 08:26:04,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-03-20 08:26:04,582 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 14 [2022-03-20 08:26:04,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 08:26:04,582 INFO L478 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-03-20 08:26:04,582 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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) [2022-03-20 08:26:04,582 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-03-20 08:26:04,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-03-20 08:26:04,583 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 08:26:04,583 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 08:26:04,583 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 08:26:04,583 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 08:26:04,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 08:26:04,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1438182146, now seen corresponding path program 1 times [2022-03-20 08:26:04,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 08:26:04,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143382763] [2022-03-20 08:26:04,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 08:26:04,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 08:26:04,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 08:26:04,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 08:26:04,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 08:26:04,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 08:26:04,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 08:26:04,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143382763] [2022-03-20 08:26:04,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143382763] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 08:26:04,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 08:26:04,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-20 08:26:04,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411626006] [2022-03-20 08:26:04,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 08:26:04,732 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-20 08:26:04,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 08:26:04,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-20 08:26:04,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-03-20 08:26:04,733 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 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) [2022-03-20 08:26:04,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 08:26:04,837 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-03-20 08:26:04,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 08:26:04,838 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 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 14 [2022-03-20 08:26:04,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 08:26:04,838 INFO L225 Difference]: With dead ends: 15 [2022-03-20 08:26:04,839 INFO L226 Difference]: Without dead ends: 0 [2022-03-20 08:26:04,843 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-03-20 08:26:04,845 INFO L913 BasicCegarLoop]: 9 mSDtfsCounter, 10 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 08:26:04,848 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 31 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 08:26:04,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-20 08:26:04,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-20 08:26:04,852 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) [2022-03-20 08:26:04,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-20 08:26:04,852 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-03-20 08:26:04,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 08:26:04,853 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-20 08:26:04,853 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 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) [2022-03-20 08:26:04,853 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-20 08:26:04,853 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-20 08:26:04,855 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-20 08:26:04,855 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 08:26:04,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-03-20 08:26:04,886 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-03-20 08:26:04,887 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2022-03-20 08:26:04,887 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2022-03-20 08:26:04,887 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-03-20 08:26:04,887 INFO L885 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-03-20 08:26:04,887 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-03-20 08:26:04,887 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-03-20 08:26:04,887 INFO L885 garLoopResultBuilder]: At program point mainENTRY(lines 24 42) the Hoare annotation is: true [2022-03-20 08:26:04,887 INFO L882 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2022-03-20 08:26:04,887 INFO L882 garLoopResultBuilder]: For program point mainFINAL(lines 24 42) no Hoare annotation was computed. [2022-03-20 08:26:04,887 INFO L882 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2022-03-20 08:26:04,887 INFO L882 garLoopResultBuilder]: For program point mainEXIT(lines 24 42) no Hoare annotation was computed. [2022-03-20 08:26:04,888 INFO L878 garLoopResultBuilder]: At program point L33-2(lines 33 37) the Hoare annotation is: (let ((.cse0 (= main_~i~0 0))) (and (or .cse0 (= main_~i~0 main_~x~0)) (or (and (= main_~z~0 0) (or (<= main_~y~0 main_~j~0) (<= (+ main_~z~0 main_~y~0) 0)) (< 0 (+ main_~z~0 main_~y~0 1))) (not .cse0)))) [2022-03-20 08:26:04,888 INFO L882 garLoopResultBuilder]: For program point L33-3(lines 24 42) no Hoare annotation was computed. [2022-03-20 08:26:04,888 INFO L878 garLoopResultBuilder]: At program point L39(line 39) the Hoare annotation is: (and (= main_~z~0 0) (<= main_~y~0 0) (= main_~i~0 0) (< 0 (+ main_~z~0 main_~y~0 1))) [2022-03-20 08:26:04,888 INFO L882 garLoopResultBuilder]: For program point L38(lines 38 40) no Hoare annotation was computed. [2022-03-20 08:26:04,888 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 17 22) the Hoare annotation is: true [2022-03-20 08:26:04,888 INFO L882 garLoopResultBuilder]: For program point L18(lines 18 20) no Hoare annotation was computed. [2022-03-20 08:26:04,888 INFO L882 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2022-03-20 08:26:04,888 INFO L882 garLoopResultBuilder]: For program point L18-2(lines 17 22) no Hoare annotation was computed. [2022-03-20 08:26:04,888 INFO L882 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2022-03-20 08:26:04,888 INFO L882 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 17 22) no Hoare annotation was computed. [2022-03-20 08:26:04,893 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1] [2022-03-20 08:26:04,894 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-20 08:26:04,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 08:26:04 BasicIcfg [2022-03-20 08:26:04,908 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-20 08:26:04,908 INFO L158 Benchmark]: Toolchain (without parser) took 25468.63ms. Allocated memory was 178.3MB in the beginning and 290.5MB in the end (delta: 112.2MB). Free memory was 121.8MB in the beginning and 237.4MB in the end (delta: -115.6MB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-20 08:26:04,909 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 178.3MB. Free memory is still 137.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-20 08:26:04,913 INFO L158 Benchmark]: CACSL2BoogieTranslator took 178.73ms. Allocated memory was 178.3MB in the beginning and 290.5MB in the end (delta: 112.2MB). Free memory was 121.6MB in the beginning and 262.3MB in the end (delta: -140.7MB). Peak memory consumption was 11.8MB. Max. memory is 8.0GB. [2022-03-20 08:26:04,913 INFO L158 Benchmark]: Boogie Preprocessor took 29.94ms. Allocated memory is still 290.5MB. Free memory was 262.3MB in the beginning and 260.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-20 08:26:04,914 INFO L158 Benchmark]: RCFGBuilder took 248.63ms. Allocated memory is still 290.5MB. Free memory was 260.7MB in the beginning and 249.7MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-20 08:26:04,914 INFO L158 Benchmark]: IcfgTransformer took 24398.18ms. Allocated memory is still 290.5MB. Free memory was 249.7MB in the beginning and 209.9MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 8.0GB. [2022-03-20 08:26:04,914 INFO L158 Benchmark]: TraceAbstraction took 609.09ms. Allocated memory is still 290.5MB. Free memory was 209.4MB in the beginning and 237.4MB in the end (delta: -28.0MB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-20 08:26:04,916 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 178.3MB. Free memory is still 137.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 178.73ms. Allocated memory was 178.3MB in the beginning and 290.5MB in the end (delta: 112.2MB). Free memory was 121.6MB in the beginning and 262.3MB in the end (delta: -140.7MB). Peak memory consumption was 11.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.94ms. Allocated memory is still 290.5MB. Free memory was 262.3MB in the beginning and 260.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 248.63ms. Allocated memory is still 290.5MB. Free memory was 260.7MB in the beginning and 249.7MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 24398.18ms. Allocated memory is still 290.5MB. Free memory was 249.7MB in the beginning and 209.9MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 8.0GB. * TraceAbstraction took 609.09ms. Allocated memory is still 290.5MB. Free memory was 209.4MB in the beginning and 237.4MB in the end (delta: -28.0MB). There was no memory consumed. 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: 19]: 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, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 57 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35 IncrementalHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 32 mSDtfsCounter, 35 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 11, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 8 PreInvPairs, 9 NumberOfFragments, 59 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 108 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: (i == 0 || i == x) && (((z == 0 && (y <= j || z + y <= 0)) && 0 < z + y + 1) || !(i == 0)) RESULT: Ultimate proved your program to be correct! [2022-03-20 08:26:04,931 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...