/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/nla-digbench/geo1-u.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 23:31:21,439 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 23:31:21,440 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 23:31:21,501 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-31 23:31:21,512 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 23:31:21,512 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 23:31:21,513 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 23:31:21,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 23:31:21,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 23:31:21,514 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 23:31:21,515 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 23:31:21,516 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 23:31:21,517 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 23:31:21,525 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 23:31:21,528 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 23:31:21,529 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 23:31:21,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 23:31:21,537 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 23:31:21,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 23:31:21,538 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 23:31:21,543 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 23:31:21,555 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 23:31:21,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 23:31:21,557 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 23:31:21,557 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 23:31:21,557 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 23:31:21,557 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 23:31:21,558 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 23:31:21,558 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 23:31:21,558 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 23:31:21,558 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 23:31:21,558 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 23:31:21,559 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 23:31:21,559 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 23:31:21,559 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 23:31:21,559 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 23:31:21,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:31:21,559 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 23:31:21,559 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 23:31:21,559 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 23:31:21,559 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-01-31 23:31:21,559 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 23:31:21,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 23:31:21,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 23:31:21,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 23:31:21,757 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 23:31:21,758 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 23:31:21,759 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/geo1-u.c [2022-01-31 23:31:21,813 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd7875868/5928d1e35f534272aa9566be972cfce8/FLAG5319791e2 [2022-01-31 23:31:22,164 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 23:31:22,165 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/geo1-u.c [2022-01-31 23:31:22,169 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd7875868/5928d1e35f534272aa9566be972cfce8/FLAG5319791e2 [2022-01-31 23:31:22,607 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd7875868/5928d1e35f534272aa9566be972cfce8 [2022-01-31 23:31:22,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 23:31:22,610 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 23:31:22,613 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 23:31:22,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 23:31:22,615 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 23:31:22,616 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:31:22" (1/1) ... [2022-01-31 23:31:22,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bcff15b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:31:22, skipping insertion in model container [2022-01-31 23:31:22,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:31:22" (1/1) ... [2022-01-31 23:31:22,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 23:31:22,630 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 23:31:22,755 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/geo1-u.c[555,568] [2022-01-31 23:31:22,767 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:31:22,780 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 23:31:22,787 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/geo1-u.c[555,568] [2022-01-31 23:31:22,801 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:31:22,809 INFO L208 MainTranslator]: Completed translation [2022-01-31 23:31:22,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:31:22 WrapperNode [2022-01-31 23:31:22,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 23:31:22,810 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 23:31:22,810 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 23:31:22,810 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 23:31:22,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:31:22" (1/1) ... [2022-01-31 23:31:22,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:31:22" (1/1) ... [2022-01-31 23:31:22,835 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:31:22" (1/1) ... [2022-01-31 23:31:22,835 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:31:22" (1/1) ... [2022-01-31 23:31:22,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:31:22" (1/1) ... [2022-01-31 23:31:22,849 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:31:22" (1/1) ... [2022-01-31 23:31:22,850 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:31:22" (1/1) ... [2022-01-31 23:31:22,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 23:31:22,856 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 23:31:22,856 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 23:31:22,856 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 23:31:22,858 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:31:22" (1/1) ... [2022-01-31 23:31:22,863 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:31:22,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 23:31:22,882 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 23:31:22,930 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 23:31:22,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 23:31:22,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 23:31:22,941 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 23:31:22,941 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-01-31 23:31:22,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-01-31 23:31:22,941 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 23:31:22,941 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 23:31:22,941 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 23:31:22,941 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 23:31:22,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 23:31:22,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2022-01-31 23:31:22,942 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-01-31 23:31:22,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-01-31 23:31:22,942 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 23:31:22,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 23:31:22,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 23:31:22,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 23:31:22,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 23:31:22,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 23:31:22,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 23:31:22,985 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 23:31:22,986 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 23:31:23,090 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 23:31:23,094 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 23:31:23,094 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-31 23:31:23,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:31:23 BoogieIcfgContainer [2022-01-31 23:31:23,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 23:31:23,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 23:31:23,097 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 23:31:23,099 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 23:31:23,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 11:31:22" (1/3) ... [2022-01-31 23:31:23,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f784c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:31:23, skipping insertion in model container [2022-01-31 23:31:23,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:31:22" (2/3) ... [2022-01-31 23:31:23,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f784c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:31:23, skipping insertion in model container [2022-01-31 23:31:23,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:31:23" (3/3) ... [2022-01-31 23:31:23,101 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-u.c [2022-01-31 23:31:23,104 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 23:31:23,104 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 23:31:23,131 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 23:31:23,136 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 23:31:23,136 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 23:31:23,149 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-01-31 23:31:23,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-31 23:31:23,154 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:31:23,154 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:31:23,155 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:31:23,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:31:23,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1656896310, now seen corresponding path program 1 times [2022-01-31 23:31:23,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:31:23,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1306990833] [2022-01-31 23:31:23,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:31:23,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:31:23,201 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:31:23,229 WARN L127 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2022-01-31 23:31:23,231 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2022-01-31 23:31:23,235 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 23:31:23,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 23:31:23,241 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-31 23:31:23,242 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 23:31:23,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 11:31:23 BoogieIcfgContainer [2022-01-31 23:31:23,249 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 23:31:23,250 INFO L158 Benchmark]: Toolchain (without parser) took 640.00ms. Allocated memory is still 203.4MB. Free memory was 154.8MB in the beginning and 157.8MB in the end (delta: -3.1MB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 23:31:23,250 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 203.4MB. Free memory was 171.0MB in the beginning and 170.8MB in the end (delta: 143.3kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 23:31:23,251 INFO L158 Benchmark]: CACSL2BoogieTranslator took 196.83ms. Allocated memory is still 203.4MB. Free memory was 154.6MB in the beginning and 181.4MB in the end (delta: -26.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-01-31 23:31:23,251 INFO L158 Benchmark]: Boogie Preprocessor took 46.01ms. Allocated memory is still 203.4MB. Free memory was 181.4MB in the beginning and 179.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-31 23:31:23,252 INFO L158 Benchmark]: RCFGBuilder took 239.22ms. Allocated memory is still 203.4MB. Free memory was 179.8MB in the beginning and 169.9MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-01-31 23:31:23,252 INFO L158 Benchmark]: TraceAbstraction took 152.62ms. Allocated memory is still 203.4MB. Free memory was 169.4MB in the beginning and 157.8MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-01-31 23:31:23,255 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 203.4MB. Free memory was 171.0MB in the beginning and 170.8MB in the end (delta: 143.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 196.83ms. Allocated memory is still 203.4MB. Free memory was 154.6MB in the beginning and 181.4MB in the end (delta: -26.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 46.01ms. Allocated memory is still 203.4MB. Free memory was 181.4MB in the beginning and 179.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 239.22ms. Allocated memory is still 203.4MB. Free memory was 179.8MB in the beginning and 169.9MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 152.62ms. Allocated memory is still 203.4MB. Free memory was 169.4MB in the beginning and 157.8MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. 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 - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L23] unsigned int z, k; [L24] long long x, y, c; [L25] z = __VERIFIER_nondet_uint() [L26] k = __VERIFIER_nondet_uint() [L28] x = 1 [L29] y = z [L30] c = 1 [L32] COND TRUE 1 [L33] CALL __VERIFIER_assert(x*z - x - y + 1 == 0) [L16] COND TRUE !(cond) [L18] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-01-31 23:31:23,299 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...