/usr/bin/java -ea -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/terminator_02-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-e106359-m [2022-04-15 12:03:56,094 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-15 12:03:56,096 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-15 12:03:56,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-15 12:03:56,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-15 12:03:56,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-15 12:03:56,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-15 12:03:56,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-15 12:03:56,130 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-15 12:03:56,131 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-15 12:03:56,133 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-15 12:03:56,134 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-15 12:03:56,135 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-15 12:03:56,137 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-15 12:03:56,138 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-15 12:03:56,139 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-15 12:03:56,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-15 12:03:56,141 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-15 12:03:56,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-15 12:03:56,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-15 12:03:56,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-15 12:03:56,149 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-04-15 12:03:56,156 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-15 12:03:56,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-15 12:03:56,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-15 12:03:56,158 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-15 12:03:56,158 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-15 12:03:56,158 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-15 12:03:56,158 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-15 12:03:56,158 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-15 12:03:56,158 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-15 12:03:56,159 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-15 12:03:56,159 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-15 12:03:56,159 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-15 12:03:56,159 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-15 12:03:56,159 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-15 12:03:56,159 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-15 12:03:56,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-15 12:03:56,160 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-15 12:03:56,160 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-15 12:03:56,160 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-15 12:03:56,160 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-15 12:03:56,160 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-15 12:03:56,160 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-04-15 12:03:56,160 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-15 12:03:56,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-15 12:03:56,387 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-15 12:03:56,389 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-15 12:03:56,390 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-15 12:03:56,392 INFO L275 PluginConnector]: CDTParser initialized [2022-04-15 12:03:56,393 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_02-1.c [2022-04-15 12:03:56,461 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4362fb25/87905fe8de9f41bda2a693419b6da274/FLAGbf7b254bd [2022-04-15 12:03:56,846 INFO L306 CDTParser]: Found 1 translation units. [2022-04-15 12:03:56,847 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_02-1.c [2022-04-15 12:03:56,851 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4362fb25/87905fe8de9f41bda2a693419b6da274/FLAGbf7b254bd [2022-04-15 12:03:57,268 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4362fb25/87905fe8de9f41bda2a693419b6da274 [2022-04-15 12:03:57,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-15 12:03:57,272 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-15 12:03:57,273 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-15 12:03:57,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-15 12:03:57,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-15 12:03:57,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 12:03:57" (1/1) ... [2022-04-15 12:03:57,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d1b6f75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:03:57, skipping insertion in model container [2022-04-15 12:03:57,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 12:03:57" (1/1) ... [2022-04-15 12:03:57,286 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-15 12:03:57,297 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-15 12:03:57,433 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/terminator_02-1.c[327,340] [2022-04-15 12:03:57,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-15 12:03:57,459 INFO L203 MainTranslator]: Completed pre-run [2022-04-15 12:03:57,468 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/terminator_02-1.c[327,340] [2022-04-15 12:03:57,472 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-15 12:03:57,485 INFO L208 MainTranslator]: Completed translation [2022-04-15 12:03:57,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:03:57 WrapperNode [2022-04-15 12:03:57,485 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-15 12:03:57,486 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-15 12:03:57,486 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-15 12:03:57,486 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-15 12:03:57,498 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:03:57" (1/1) ... [2022-04-15 12:03:57,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:03:57" (1/1) ... [2022-04-15 12:03:57,505 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:03:57" (1/1) ... [2022-04-15 12:03:57,505 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:03:57" (1/1) ... [2022-04-15 12:03:57,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:03:57" (1/1) ... [2022-04-15 12:03:57,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:03:57" (1/1) ... [2022-04-15 12:03:57,520 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:03:57" (1/1) ... [2022-04-15 12:03:57,525 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-15 12:03:57,526 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-15 12:03:57,526 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-15 12:03:57,526 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-15 12:03:57,527 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:03:57" (1/1) ... [2022-04-15 12:03:57,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-15 12:03:57,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 12:03:57,563 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) [2022-04-15 12:03:57,567 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 [2022-04-15 12:03:57,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-15 12:03:57,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-15 12:03:57,592 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-15 12:03:57,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-15 12:03:57,592 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-15 12:03:57,593 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-15 12:03:57,593 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-15 12:03:57,593 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-15 12:03:57,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-15 12:03:57,593 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-15 12:03:57,593 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-15 12:03:57,593 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2022-04-15 12:03:57,593 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-15 12:03:57,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-15 12:03:57,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-15 12:03:57,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-15 12:03:57,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-15 12:03:57,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-15 12:03:57,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-15 12:03:57,656 INFO L234 CfgBuilder]: Building ICFG [2022-04-15 12:03:57,664 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-15 12:03:57,839 INFO L275 CfgBuilder]: Performing block encoding [2022-04-15 12:03:57,848 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-15 12:03:57,849 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-15 12:03:57,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 12:03:57 BoogieIcfgContainer [2022-04-15 12:03:57,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-15 12:03:57,854 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-15 12:03:57,854 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-15 12:03:57,863 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-15 12:03:57,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.04 12:03:57" (1/3) ... [2022-04-15 12:03:57,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dc338f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 12:03:57, skipping insertion in model container [2022-04-15 12:03:57,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:03:57" (2/3) ... [2022-04-15 12:03:57,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dc338f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 12:03:57, skipping insertion in model container [2022-04-15 12:03:57,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 12:03:57" (3/3) ... [2022-04-15 12:03:57,865 INFO L111 eAbstractionObserver]: Analyzing ICFG terminator_02-1.c [2022-04-15 12:03:57,882 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-15 12:03:57,882 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-15 12:03:57,940 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-15 12:03:57,973 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, 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 [2022-04-15 12:03:57,974 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-15 12:03:57,999 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 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) [2022-04-15 12:03:58,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-15 12:03:58,004 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 12:03:58,005 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 12:03:58,005 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 12:03:58,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 12:03:58,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1706373939, now seen corresponding path program 1 times [2022-04-15 12:03:58,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-15 12:03:58,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1104867892] [2022-04-15 12:03:58,034 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-15 12:03:58,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1706373939, now seen corresponding path program 2 times [2022-04-15 12:03:58,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 12:03:58,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142180547] [2022-04-15 12:03:58,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 12:03:58,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 12:03:58,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 12:03:58,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 12:03:58,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 12:03:58,233 INFO L290 TraceCheckUtils]: 0: Hoare triple {28#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); {23#true} is VALID [2022-04-15 12:03:58,233 INFO L290 TraceCheckUtils]: 1: Hoare triple {23#true} assume true; {23#true} is VALID [2022-04-15 12:03:58,233 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {23#true} {23#true} #43#return; {23#true} is VALID [2022-04-15 12:03:58,235 INFO L272 TraceCheckUtils]: 0: Hoare triple {23#true} call ULTIMATE.init(); {28#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 12:03:58,235 INFO L290 TraceCheckUtils]: 1: Hoare triple {28#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); {23#true} is VALID [2022-04-15 12:03:58,236 INFO L290 TraceCheckUtils]: 2: Hoare triple {23#true} assume true; {23#true} is VALID [2022-04-15 12:03:58,236 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {23#true} {23#true} #43#return; {23#true} is VALID [2022-04-15 12:03:58,236 INFO L272 TraceCheckUtils]: 4: Hoare triple {23#true} call #t~ret11 := main(); {23#true} is VALID [2022-04-15 12:03:58,236 INFO L290 TraceCheckUtils]: 5: Hoare triple {23#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~x~0 := #t~nondet4;havoc #t~nondet4;assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~y~0 := #t~nondet5;havoc #t~nondet5;assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647;~z~0 := #t~nondet6;havoc #t~nondet6; {23#true} is VALID [2022-04-15 12:03:58,237 INFO L290 TraceCheckUtils]: 6: Hoare triple {23#true} assume !true; {24#false} is VALID [2022-04-15 12:03:58,237 INFO L272 TraceCheckUtils]: 7: Hoare triple {24#false} call __VERIFIER_assert(0); {24#false} is VALID [2022-04-15 12:03:58,237 INFO L290 TraceCheckUtils]: 8: Hoare triple {24#false} ~cond := #in~cond; {24#false} is VALID [2022-04-15 12:03:58,237 INFO L290 TraceCheckUtils]: 9: Hoare triple {24#false} assume 0 == ~cond; {24#false} is VALID [2022-04-15 12:03:58,238 INFO L290 TraceCheckUtils]: 10: Hoare triple {24#false} assume !false; {24#false} is VALID [2022-04-15 12:03:58,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 12:03:58,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 12:03:58,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142180547] [2022-04-15 12:03:58,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142180547] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 12:03:58,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 12:03:58,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-15 12:03:58,243 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-15 12:03:58,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1104867892] [2022-04-15 12:03:58,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1104867892] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 12:03:58,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 12:03:58,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-15 12:03:58,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710067159] [2022-04-15 12:03:58,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 12:03:58,250 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 [2022-04-15 12:03:58,251 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 12:03:58,254 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 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) [2022-04-15 12:03:58,271 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 12:03:58,272 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-15 12:03:58,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-15 12:03:58,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-15 12:03:58,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-15 12:03:58,298 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 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 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) [2022-04-15 12:03:58,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 12:03:58,366 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2022-04-15 12:03:58,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-15 12:03:58,366 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 [2022-04-15 12:03:58,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 12:03:58,368 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2022-04-15 12:03:58,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 36 transitions. [2022-04-15 12:03:58,378 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2022-04-15 12:03:58,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 36 transitions. [2022-04-15 12:03:58,385 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 36 transitions. [2022-04-15 12:03:58,443 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 12:03:58,449 INFO L225 Difference]: With dead ends: 32 [2022-04-15 12:03:58,449 INFO L226 Difference]: Without dead ends: 13 [2022-04-15 12:03:58,452 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-15 12:03:58,454 INFO L913 BasicCegarLoop]: 20 mSDtfsCounter, 12 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 23 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 [2022-04-15 12:03:58,459 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 23 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-15 12:03:58,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-04-15 12:03:58,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-04-15 12:03:58,493 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 12:03:58,493 INFO L82 GeneralOperation]: Start isEquivalent. First operand 13 states. Second operand has 13 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 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) [2022-04-15 12:03:58,494 INFO L74 IsIncluded]: Start isIncluded. First operand 13 states. Second operand has 13 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 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) [2022-04-15 12:03:58,494 INFO L87 Difference]: Start difference. First operand 13 states. Second operand has 13 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 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) [2022-04-15 12:03:58,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 12:03:58,500 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2022-04-15 12:03:58,500 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-04-15 12:03:58,501 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 12:03:58,501 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 12:03:58,501 INFO L74 IsIncluded]: Start isIncluded. First operand has 13 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 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) Second operand 13 states. [2022-04-15 12:03:58,501 INFO L87 Difference]: Start difference. First operand has 13 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 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) Second operand 13 states. [2022-04-15 12:03:58,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 12:03:58,503 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2022-04-15 12:03:58,503 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-04-15 12:03:58,503 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 12:03:58,503 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 12:03:58,504 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 12:03:58,504 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 12:03:58,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 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) [2022-04-15 12:03:58,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-04-15 12:03:58,506 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 11 [2022-04-15 12:03:58,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 12:03:58,507 INFO L478 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-04-15 12:03:58,507 INFO L479 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) [2022-04-15 12:03:58,507 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 13 states and 14 transitions. [2022-04-15 12:03:58,529 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 12:03:58,530 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-04-15 12:03:58,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-15 12:03:58,532 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 12:03:58,534 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 12:03:58,535 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-15 12:03:58,539 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 12:03:58,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 12:03:58,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1697138729, now seen corresponding path program 1 times [2022-04-15 12:03:58,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-15 12:03:58,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [248026958] [2022-04-15 12:03:58,545 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-15 12:03:58,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1697138729, now seen corresponding path program 2 times [2022-04-15 12:03:58,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 12:03:58,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485112223] [2022-04-15 12:03:58,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 12:03:58,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 12:03:58,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-15 12:03:58,580 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-15 12:03:58,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-15 12:03:58,626 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-15 12:03:58,629 INFO L130 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found a feasible trace [2022-04-15 12:03:58,629 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-15 12:03:58,632 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-15 12:03:58,633 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-15 12:03:58,636 INFO L719 BasicCegarLoop]: Path program histogram: [2, 2] [2022-04-15 12:03:58,639 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-15 12:03:58,649 WARN L170 areAnnotationChecker]: reach_errorENTRY has no Hoare annotation [2022-04-15 12:03:58,650 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2022-04-15 12:03:58,650 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-04-15 12:03:58,650 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-04-15 12:03:58,650 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2022-04-15 12:03:58,650 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2022-04-15 12:03:58,650 WARN L170 areAnnotationChecker]: reach_errorFINAL has no Hoare annotation [2022-04-15 12:03:58,650 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-15 12:03:58,650 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-04-15 12:03:58,650 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-04-15 12:03:58,650 WARN L170 areAnnotationChecker]: L23-2 has no Hoare annotation [2022-04-15 12:03:58,650 WARN L170 areAnnotationChecker]: L23-2 has no Hoare annotation [2022-04-15 12:03:58,650 WARN L170 areAnnotationChecker]: L23-2 has no Hoare annotation [2022-04-15 12:03:58,650 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2022-04-15 12:03:58,664 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2022-04-15 12:03:58,664 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2022-04-15 12:03:58,664 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-04-15 12:03:58,664 WARN L170 areAnnotationChecker]: L20-2 has no Hoare annotation [2022-04-15 12:03:58,664 WARN L170 areAnnotationChecker]: L20-2 has no Hoare annotation [2022-04-15 12:03:58,665 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2022-04-15 12:03:58,665 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2022-04-15 12:03:58,665 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2022-04-15 12:03:58,665 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2022-04-15 12:03:58,665 WARN L170 areAnnotationChecker]: L6-2 has no Hoare annotation [2022-04-15 12:03:58,665 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2022-04-15 12:03:58,665 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-15 12:03:58,665 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2022-04-15 12:03:58,665 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2022-04-15 12:03:58,665 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-04-15 12:03:58,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.04 12:03:58 BoogieIcfgContainer [2022-04-15 12:03:58,670 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-15 12:03:58,673 INFO L158 Benchmark]: Toolchain (without parser) took 1399.68ms. Allocated memory was 177.2MB in the beginning and 224.4MB in the end (delta: 47.2MB). Free memory was 126.4MB in the beginning and 202.0MB in the end (delta: -75.6MB). Peak memory consumption was 29.3MB. Max. memory is 8.0GB. [2022-04-15 12:03:58,676 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 177.2MB. Free memory was 142.8MB in the beginning and 142.7MB in the end (delta: 69.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-15 12:03:58,676 INFO L158 Benchmark]: CACSL2BoogieTranslator took 212.00ms. Allocated memory is still 177.2MB. Free memory was 126.2MB in the beginning and 152.9MB in the end (delta: -26.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-04-15 12:03:58,679 INFO L158 Benchmark]: Boogie Preprocessor took 39.58ms. Allocated memory is still 177.2MB. Free memory was 152.9MB in the beginning and 151.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-15 12:03:58,680 INFO L158 Benchmark]: RCFGBuilder took 326.23ms. Allocated memory is still 177.2MB. Free memory was 151.4MB in the beginning and 140.6MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-04-15 12:03:58,680 INFO L158 Benchmark]: TraceAbstraction took 816.61ms. Allocated memory was 177.2MB in the beginning and 224.4MB in the end (delta: 47.2MB). Free memory was 140.1MB in the beginning and 202.0MB in the end (delta: -61.9MB). Peak memory consumption was 42.9MB. Max. memory is 8.0GB. [2022-04-15 12:03:58,684 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 177.2MB. Free memory was 142.8MB in the beginning and 142.7MB in the end (delta: 69.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 212.00ms. Allocated memory is still 177.2MB. Free memory was 126.2MB in the beginning and 152.9MB in the end (delta: -26.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 39.58ms. Allocated memory is still 177.2MB. Free memory was 152.9MB in the beginning and 151.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 326.23ms. Allocated memory is still 177.2MB. Free memory was 151.4MB in the beginning and 140.6MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 816.61ms. Allocated memory was 177.2MB in the beginning and 224.4MB in the end (delta: 47.2MB). Free memory was 140.1MB in the beginning and 202.0MB in the end (delta: -61.9MB). Peak memory consumption was 42.9MB. 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 - CounterExampleResult [Line: 7]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L16] int x=__VERIFIER_nondet_int(); [L17] int y=__VERIFIER_nondet_int(); [L18] int z=__VERIFIER_nondet_int(); [L20] COND FALSE !(x<100 && 100