/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/loop-acceleration/functions_1-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 23:23:16,114 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 23:23:16,116 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 23:23:16,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-31 23:23:16,191 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 23:23:16,192 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 23:23:16,192 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 23:23:16,193 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 23:23:16,194 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 23:23:16,194 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 23:23:16,195 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 23:23:16,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 23:23:16,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 23:23:16,200 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 23:23:16,203 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 23:23:16,204 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 23:23:16,211 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 23:23:16,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 23:23:16,221 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 23:23:16,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 23:23:16,223 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 23:23:16,233 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 23:23:16,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 23:23:16,235 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 23:23:16,235 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 23:23:16,235 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 23:23:16,236 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 23:23:16,236 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 23:23:16,236 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 23:23:16,236 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 23:23:16,236 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 23:23:16,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 23:23:16,237 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 23:23:16,237 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 23:23:16,237 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 23:23:16,238 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 23:23:16,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:23:16,238 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 23:23:16,238 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 23:23:16,238 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 23:23:16,238 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-01-31 23:23:16,238 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 23:23:16,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 23:23:16,492 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 23:23:16,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 23:23:16,494 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 23:23:16,495 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 23:23:16,496 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/functions_1-2.c [2022-01-31 23:23:16,557 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8de588611/6e0708b2cb9e420ca27ec4f88d4b85c0/FLAGdd7d0c114 [2022-01-31 23:23:16,953 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 23:23:16,953 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/functions_1-2.c [2022-01-31 23:23:16,963 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8de588611/6e0708b2cb9e420ca27ec4f88d4b85c0/FLAGdd7d0c114 [2022-01-31 23:23:16,979 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8de588611/6e0708b2cb9e420ca27ec4f88d4b85c0 [2022-01-31 23:23:16,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 23:23:16,983 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 23:23:16,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 23:23:16,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 23:23:16,988 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 23:23:16,989 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:23:16" (1/1) ... [2022-01-31 23:23:16,990 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c2fa301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:23:16, skipping insertion in model container [2022-01-31 23:23:16,990 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:23:16" (1/1) ... [2022-01-31 23:23:16,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 23:23:17,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 23:23:17,156 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-acceleration/functions_1-2.c[325,338] [2022-01-31 23:23:17,164 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:23:17,170 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 23:23:17,194 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-acceleration/functions_1-2.c[325,338] [2022-01-31 23:23:17,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:23:17,218 INFO L208 MainTranslator]: Completed translation [2022-01-31 23:23:17,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:23:17 WrapperNode [2022-01-31 23:23:17,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 23:23:17,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 23:23:17,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 23:23:17,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 23:23:17,245 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:23:17" (1/1) ... [2022-01-31 23:23:17,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:23:17" (1/1) ... [2022-01-31 23:23:17,252 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:23:17" (1/1) ... [2022-01-31 23:23:17,252 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:23:17" (1/1) ... [2022-01-31 23:23:17,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:23:17" (1/1) ... [2022-01-31 23:23:17,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:23:17" (1/1) ... [2022-01-31 23:23:17,263 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:23:17" (1/1) ... [2022-01-31 23:23:17,267 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 23:23:17,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 23:23:17,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 23:23:17,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 23:23:17,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:23:17" (1/1) ... [2022-01-31 23:23:17,276 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:23:17,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 23:23:17,300 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 23:23:17,323 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 23:23:17,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 23:23:17,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 23:23:17,341 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 23:23:17,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-01-31 23:23:17,341 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-01-31 23:23:17,341 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 23:23:17,341 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 23:23:17,341 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 23:23:17,342 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 23:23:17,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 23:23:17,342 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-01-31 23:23:17,343 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-01-31 23:23:17,343 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 23:23:17,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 23:23:17,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 23:23:17,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 23:23:17,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 23:23:17,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 23:23:17,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 23:23:17,395 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 23:23:17,397 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 23:23:17,520 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 23:23:17,525 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 23:23:17,525 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-31 23:23:17,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:23:17 BoogieIcfgContainer [2022-01-31 23:23:17,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 23:23:17,528 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 23:23:17,528 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 23:23:17,546 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 23:23:17,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 11:23:16" (1/3) ... [2022-01-31 23:23:17,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dbf239a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:23:17, skipping insertion in model container [2022-01-31 23:23:17,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:23:17" (2/3) ... [2022-01-31 23:23:17,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dbf239a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:23:17, skipping insertion in model container [2022-01-31 23:23:17,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:23:17" (3/3) ... [2022-01-31 23:23:17,549 INFO L111 eAbstractionObserver]: Analyzing ICFG functions_1-2.c [2022-01-31 23:23:17,558 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 23:23:17,559 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 23:23:17,615 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 23:23:17,623 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 23:23:17,624 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 23:23:17,639 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-01-31 23:23:17,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-31 23:23:17,645 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:23:17,645 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:23:17,646 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:23:17,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:23:17,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1649640916, now seen corresponding path program 1 times [2022-01-31 23:23:17,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:23:17,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1068909908] [2022-01-31 23:23:17,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:23:17,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:23:17,715 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:23:17,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:17,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:23:17,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:17,845 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 23:23:17,846 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:23:17,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1068909908] [2022-01-31 23:23:17,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1068909908] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:23:17,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:23:17,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-31 23:23:17,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061050541] [2022-01-31 23:23:17,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:23:17,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-31 23:23:17,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:23:17,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-31 23:23:17,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-31 23:23:17,921 INFO L87 Difference]: Start difference. First operand has 23 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:18,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:23:18,002 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2022-01-31 23:23:18,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-31 23:23:18,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-01-31 23:23:18,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:23:18,021 INFO L225 Difference]: With dead ends: 34 [2022-01-31 23:23:18,021 INFO L226 Difference]: Without dead ends: 17 [2022-01-31 23:23:18,026 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 23:23:18,036 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 12 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 23:23:18,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 24 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 23:23:18,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-01-31 23:23:18,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-01-31 23:23:18,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-31 23:23:18,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-01-31 23:23:18,071 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 11 [2022-01-31 23:23:18,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:23:18,071 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-01-31 23:23:18,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:18,072 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-01-31 23:23:18,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-31 23:23:18,072 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:23:18,073 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:23:18,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 23:23:18,073 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:23:18,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:23:18,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1655182042, now seen corresponding path program 1 times [2022-01-31 23:23:18,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:23:18,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1608373077] [2022-01-31 23:23:18,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:23:18,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:23:18,077 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:23:18,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:18,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:23:18,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:23:18,181 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 23:23:18,181 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:23:18,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1608373077] [2022-01-31 23:23:18,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1608373077] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:23:18,183 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:23:18,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 23:23:18,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871242505] [2022-01-31 23:23:18,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:23:18,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 23:23:18,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:23:18,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 23:23:18,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:23:18,185 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:18,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:23:18,226 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2022-01-31 23:23:18,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 23:23:18,227 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-01-31 23:23:18,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:23:18,228 INFO L225 Difference]: With dead ends: 25 [2022-01-31 23:23:18,228 INFO L226 Difference]: Without dead ends: 20 [2022-01-31 23:23:18,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:23:18,230 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 12 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 23:23:18,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 22 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 23:23:18,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-01-31 23:23:18,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2022-01-31 23:23:18,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-31 23:23:18,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-01-31 23:23:18,238 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 11 [2022-01-31 23:23:18,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:23:18,238 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-01-31 23:23:18,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:23:18,239 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-01-31 23:23:18,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-31 23:23:18,239 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:23:18,240 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 23:23:18,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 23:23:18,240 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:23:18,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:23:18,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1503524740, now seen corresponding path program 1 times [2022-01-31 23:23:18,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:23:18,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1995116313] [2022-01-31 23:23:18,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:23:18,261 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 23:23:18,265 INFO L158 Benchmark]: Toolchain (without parser) took 1281.89ms. Allocated memory was 182.5MB in the beginning and 266.3MB in the end (delta: 83.9MB). Free memory was 128.3MB in the beginning and 195.7MB in the end (delta: -67.5MB). Peak memory consumption was 16.4MB. Max. memory is 8.0GB. [2022-01-31 23:23:18,265 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 182.5MB. Free memory is still 144.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 23:23:18,266 INFO L158 Benchmark]: CACSL2BoogieTranslator took 234.03ms. Allocated memory was 182.5MB in the beginning and 266.3MB in the end (delta: 83.9MB). Free memory was 128.1MB in the beginning and 241.3MB in the end (delta: -113.3MB). Peak memory consumption was 12.2MB. Max. memory is 8.0GB. [2022-01-31 23:23:18,266 INFO L158 Benchmark]: Boogie Preprocessor took 47.03ms. Allocated memory is still 266.3MB. Free memory was 241.3MB in the beginning and 239.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-31 23:23:18,267 INFO L158 Benchmark]: RCFGBuilder took 258.53ms. Allocated memory is still 266.3MB. Free memory was 239.8MB in the beginning and 228.4MB in the end (delta: 11.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-01-31 23:23:18,267 INFO L158 Benchmark]: TraceAbstraction took 736.46ms. Allocated memory is still 266.3MB. Free memory was 227.7MB in the beginning and 195.7MB in the end (delta: 32.0MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2022-01-31 23:23:18,269 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 182.5MB. Free memory is still 144.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 234.03ms. Allocated memory was 182.5MB in the beginning and 266.3MB in the end (delta: 83.9MB). Free memory was 128.1MB in the beginning and 241.3MB in the end (delta: -113.3MB). Peak memory consumption was 12.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 47.03ms. Allocated memory is still 266.3MB. Free memory was 241.3MB in the beginning and 239.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 258.53ms. Allocated memory is still 266.3MB. Free memory was 239.8MB in the beginning and 228.4MB in the end (delta: 11.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 736.46ms. Allocated memory is still 266.3MB. Free memory was 227.7MB in the beginning and 195.7MB in the end (delta: 32.0MB). Peak memory consumption was 31.5MB. 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 23:23:18,299 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...