/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/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/in-de52.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 23:25:43,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 23:25:43,612 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 23:25:43,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-31 23:25:43,686 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 23:25:43,687 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 23:25:43,688 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 23:25:43,689 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 23:25:43,689 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 23:25:43,690 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 23:25:43,691 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 23:25:43,692 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 23:25:43,693 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 23:25:43,699 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 23:25:43,699 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 23:25:43,700 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 23:25:43,702 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 23:25:43,708 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 23:25:43,708 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 23:25:43,709 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 23:25:43,713 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-01-31 23:25:43,720 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 23:25:43,720 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 23:25:43,721 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 23:25:43,722 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 23:25:43,722 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 23:25:43,722 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 23:25:43,722 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 23:25:43,722 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 23:25:43,723 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 23:25:43,723 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 23:25:43,728 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 23:25:43,729 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 23:25:43,729 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 23:25:43,729 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 23:25:43,729 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 23:25:43,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:25:43,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 23:25:43,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 23:25:43,730 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 23:25:43,730 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-01-31 23:25:43,730 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 23:25:43,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 23:25:43,978 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 23:25:43,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 23:25:43,981 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 23:25:43,982 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 23:25:43,983 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/in-de52.c [2022-01-31 23:25:44,055 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a4b11b31/23977c1eab9341f2ace90cb088c25004/FLAGb839439d2 [2022-01-31 23:25:44,388 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 23:25:44,389 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/in-de52.c [2022-01-31 23:25:44,394 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a4b11b31/23977c1eab9341f2ace90cb088c25004/FLAGb839439d2 [2022-01-31 23:25:44,816 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a4b11b31/23977c1eab9341f2ace90cb088c25004 [2022-01-31 23:25:44,818 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 23:25:44,819 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 23:25:44,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 23:25:44,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 23:25:44,827 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 23:25:44,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:25:44" (1/1) ... [2022-01-31 23:25:44,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@320e13c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:25:44, skipping insertion in model container [2022-01-31 23:25:44,829 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:25:44" (1/1) ... [2022-01-31 23:25:44,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 23:25:44,846 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 23:25:44,944 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-crafted-1/in-de52.c[368,381] [2022-01-31 23:25:44,975 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:25:44,980 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 23:25:44,989 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-crafted-1/in-de52.c[368,381] [2022-01-31 23:25:44,993 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:25:45,004 INFO L208 MainTranslator]: Completed translation [2022-01-31 23:25:45,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:25:45 WrapperNode [2022-01-31 23:25:45,004 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 23:25:45,005 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 23:25:45,006 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 23:25:45,006 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 23:25:45,016 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:25:45" (1/1) ... [2022-01-31 23:25:45,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:25:45" (1/1) ... [2022-01-31 23:25:45,025 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:25:45" (1/1) ... [2022-01-31 23:25:45,025 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:25:45" (1/1) ... [2022-01-31 23:25:45,038 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:25:45" (1/1) ... [2022-01-31 23:25:45,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:25:45" (1/1) ... [2022-01-31 23:25:45,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:25:45" (1/1) ... [2022-01-31 23:25:45,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 23:25:45,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 23:25:45,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 23:25:45,052 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 23:25:45,054 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:25:45" (1/1) ... [2022-01-31 23:25:45,060 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:25:45,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 23:25:45,092 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 23:25:45,118 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 23:25:45,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 23:25:45,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 23:25:45,132 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 23:25:45,132 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-01-31 23:25:45,132 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 23:25:45,133 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 23:25:45,133 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 23:25:45,133 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 23:25:45,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 23:25:45,133 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2022-01-31 23:25:45,133 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-01-31 23:25:45,134 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 23:25:45,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 23:25:45,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 23:25:45,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 23:25:45,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 23:25:45,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 23:25:45,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 23:25:45,196 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 23:25:45,199 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 23:25:45,285 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 23:25:45,290 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 23:25:45,290 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-01-31 23:25:45,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:25:45 BoogieIcfgContainer [2022-01-31 23:25:45,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 23:25:45,292 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 23:25:45,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 23:25:45,306 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 23:25:45,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 11:25:44" (1/3) ... [2022-01-31 23:25:45,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@349f7293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:25:45, skipping insertion in model container [2022-01-31 23:25:45,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:25:45" (2/3) ... [2022-01-31 23:25:45,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@349f7293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:25:45, skipping insertion in model container [2022-01-31 23:25:45,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:25:45" (3/3) ... [2022-01-31 23:25:45,309 INFO L111 eAbstractionObserver]: Analyzing ICFG in-de52.c [2022-01-31 23:25:45,313 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 23:25:45,313 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 23:25:45,349 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 23:25:45,354 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, 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=QVASR [2022-01-31 23:25:45,355 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 23:25:45,365 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 16 states have (on average 1.75) internal successors, (28), 17 states have internal predecessors, (28), 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 23:25:45,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-01-31 23:25:45,371 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:25:45,372 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:25:45,372 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:25:45,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:25:45,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1060076674, now seen corresponding path program 1 times [2022-01-31 23:25:45,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:25:45,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [638584214] [2022-01-31 23:25:45,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:25:45,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:25:45,488 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:25:45,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:25:45,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:25:45,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:25:45,632 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 23:25:45,634 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:25:45,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [638584214] [2022-01-31 23:25:45,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [638584214] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:25:45,636 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:25:45,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-31 23:25:45,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473585630] [2022-01-31 23:25:45,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:25:45,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-31 23:25:45,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:25:45,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-31 23:25:45,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-31 23:25:45,672 INFO L87 Difference]: Start difference. First operand has 24 states, 16 states have (on average 1.75) internal successors, (28), 17 states have internal predecessors, (28), 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 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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 23:25:45,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:25:45,724 INFO L93 Difference]: Finished difference Result 41 states and 60 transitions. [2022-01-31 23:25:45,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-31 23:25:45,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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 16 [2022-01-31 23:25:45,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:25:45,741 INFO L225 Difference]: With dead ends: 41 [2022-01-31 23:25:45,741 INFO L226 Difference]: Without dead ends: 17 [2022-01-31 23:25:45,744 INFO L932 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 [2022-01-31 23:25:45,747 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 19 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 23:25:45,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 30 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 23:25:45,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-01-31 23:25:45,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-01-31 23:25:45,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 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) [2022-01-31 23:25:45,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2022-01-31 23:25:45,791 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 16 [2022-01-31 23:25:45,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:25:45,792 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2022-01-31 23:25:45,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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 23:25:45,792 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2022-01-31 23:25:45,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-01-31 23:25:45,793 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:25:45,793 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:25:45,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 23:25:45,793 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:25:45,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:25:45,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1174593278, now seen corresponding path program 1 times [2022-01-31 23:25:45,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:25:45,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1139596216] [2022-01-31 23:25:45,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:25:45,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:25:45,797 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:25:45,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:25:45,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:25:45,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:25:45,929 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 23:25:45,930 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:25:45,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1139596216] [2022-01-31 23:25:45,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1139596216] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:25:45,931 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:25:45,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 23:25:45,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126845393] [2022-01-31 23:25:45,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:25:45,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 23:25:45,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:25:45,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 23:25:45,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:25:45,934 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 4 states have internal predecessors, (12), 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 23:25:46,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:25:46,042 INFO L93 Difference]: Finished difference Result 34 states and 45 transitions. [2022-01-31 23:25:46,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 23:25:46,042 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 4 states have internal predecessors, (12), 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 16 [2022-01-31 23:25:46,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:25:46,043 INFO L225 Difference]: With dead ends: 34 [2022-01-31 23:25:46,043 INFO L226 Difference]: Without dead ends: 23 [2022-01-31 23:25:46,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 23:25:46,045 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 28 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 23:25:46,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 32 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 23:25:46,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-01-31 23:25:46,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-01-31 23:25:46,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 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) [2022-01-31 23:25:46,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2022-01-31 23:25:46,054 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 30 transitions. Word has length 16 [2022-01-31 23:25:46,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:25:46,054 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 30 transitions. [2022-01-31 23:25:46,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 4 states have internal predecessors, (12), 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 23:25:46,054 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2022-01-31 23:25:46,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-31 23:25:46,055 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:25:46,055 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:25:46,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 23:25:46,055 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:25:46,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:25:46,056 INFO L85 PathProgramCache]: Analyzing trace with hash -2018158143, now seen corresponding path program 1 times [2022-01-31 23:25:46,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:25:46,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1269005114] [2022-01-31 23:25:46,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:25:46,074 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:493) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:426) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.term(WrapperScript.java:249) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.term(WrapperScript.java:249) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.checkEquivalence(SmtUtils.java:2374) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.areFormulasEquivalent(SmtUtils.java:2366) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrUtils.checkTermEquiv(QvasrUtils.java:211) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrAbstractor.simplifyRealMultiplication(QvasrAbstractor.java:720) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrAbstractor.gaussPartialPivot(QvasrAbstractor.java:196) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrAbstractor.gaussianSolve(QvasrAbstractor.java:132) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrAbstractor.computeAbstraction(QvasrAbstractor.java:111) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrSummarizer.summarizeLoop(QvasrSummarizer.java:133) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrLoopSummarization.getQvasrAcceleration(QvasrLoopSummarization.java:79) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.AcceleratorQvasr.accelerateLoop(AcceleratorQvasr.java:87) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:210) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:185) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:264) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-01-31 23:25:46,077 INFO L158 Benchmark]: Toolchain (without parser) took 1258.00ms. Allocated memory is still 177.2MB. Free memory was 129.1MB in the beginning and 106.8MB in the end (delta: 22.3MB). Peak memory consumption was 22.2MB. Max. memory is 8.0GB. [2022-01-31 23:25:46,078 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 177.2MB. Free memory is still 145.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 23:25:46,078 INFO L158 Benchmark]: CACSL2BoogieTranslator took 180.33ms. Allocated memory is still 177.2MB. Free memory was 128.9MB in the beginning and 154.7MB in the end (delta: -25.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-01-31 23:25:46,079 INFO L158 Benchmark]: Boogie Preprocessor took 45.68ms. Allocated memory is still 177.2MB. Free memory was 154.7MB in the beginning and 153.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-31 23:25:46,079 INFO L158 Benchmark]: RCFGBuilder took 239.55ms. Allocated memory is still 177.2MB. Free memory was 153.2MB in the beginning and 142.8MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-01-31 23:25:46,080 INFO L158 Benchmark]: TraceAbstraction took 784.20ms. Allocated memory is still 177.2MB. Free memory was 142.5MB in the beginning and 106.8MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. [2022-01-31 23:25:46,081 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 177.2MB. Free memory is still 145.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 180.33ms. Allocated memory is still 177.2MB. Free memory was 128.9MB in the beginning and 154.7MB in the end (delta: -25.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 45.68ms. Allocated memory is still 177.2MB. Free memory was 154.7MB in the beginning and 153.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 239.55ms. Allocated memory is still 177.2MB. Free memory was 153.2MB in the beginning and 142.8MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 784.20ms. Allocated memory is still 177.2MB. Free memory was 142.5MB in the beginning and 106.8MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:493) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-01-31 23:25:46,110 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...