/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/loop-lit/gcnr2008.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-08 09:33:59,879 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-08 09:33:59,881 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-08 09:33:59,915 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-08 09:33:59,951 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-08 09:33:59,951 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-08 09:33:59,952 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-08 09:33:59,953 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-04-08 09:33:59,960 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-08 09:33:59,961 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-08 09:33:59,961 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-08 09:33:59,961 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-08 09:33:59,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-08 09:33:59,962 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-08 09:33:59,962 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-08 09:33:59,962 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-08 09:33:59,962 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-08 09:33:59,962 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-08 09:33:59,962 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-08 09:33:59,963 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-08 09:33:59,963 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-08 09:33:59,963 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-08 09:33:59,963 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-08 09:33:59,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-08 09:33:59,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-08 09:33:59,963 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-08 09:33:59,963 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-08 09:33:59,963 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-08 09:33:59,963 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-08 09:33:59,963 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-04-08 09:33:59,964 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-08 09:34:00,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-08 09:34:00,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-08 09:34:00,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-08 09:34:00,141 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-08 09:34:00,142 INFO L275 PluginConnector]: CDTParser initialized [2022-04-08 09:34:00,143 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/gcnr2008.i [2022-04-08 09:34:00,177 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe19ed3d4/13ce9a6f47fa40fa8b008ccbccd5d835/FLAGff91d411b [2022-04-08 09:34:00,525 INFO L306 CDTParser]: Found 1 translation units. [2022-04-08 09:34:00,526 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gcnr2008.i [2022-04-08 09:34:00,530 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe19ed3d4/13ce9a6f47fa40fa8b008ccbccd5d835/FLAGff91d411b [2022-04-08 09:34:00,541 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe19ed3d4/13ce9a6f47fa40fa8b008ccbccd5d835 [2022-04-08 09:34:00,542 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-08 09:34:00,544 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-08 09:34:00,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-08 09:34:00,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-08 09:34:00,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-08 09:34:00,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.04 09:34:00" (1/1) ... [2022-04-08 09:34:00,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cd91a92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 09:34:00, skipping insertion in model container [2022-04-08 09:34:00,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.04 09:34:00" (1/1) ... [2022-04-08 09:34:00,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-08 09:34:00,564 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-08 09:34:00,733 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gcnr2008.i[895,908] [2022-04-08 09:34:00,752 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-08 09:34:00,758 INFO L203 MainTranslator]: Completed pre-run [2022-04-08 09:34:00,769 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gcnr2008.i[895,908] [2022-04-08 09:34:00,781 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-08 09:34:00,790 INFO L208 MainTranslator]: Completed translation [2022-04-08 09:34:00,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 09:34:00 WrapperNode [2022-04-08 09:34:00,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-08 09:34:00,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-08 09:34:00,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-08 09:34:00,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-08 09:34:00,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 09:34:00" (1/1) ... [2022-04-08 09:34:00,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 09:34:00" (1/1) ... [2022-04-08 09:34:00,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 09:34:00" (1/1) ... [2022-04-08 09:34:00,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 09:34:00" (1/1) ... [2022-04-08 09:34:00,811 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 09:34:00" (1/1) ... [2022-04-08 09:34:00,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 09:34:00" (1/1) ... [2022-04-08 09:34:00,822 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 09:34:00" (1/1) ... [2022-04-08 09:34:00,824 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-08 09:34:00,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-08 09:34:00,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-08 09:34:00,826 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-08 09:34:00,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 09:34:00" (1/1) ... [2022-04-08 09:34:00,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-08 09:34:00,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 09:34:00,846 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) [2022-04-08 09:34:00,864 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 [2022-04-08 09:34:00,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-08 09:34:00,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-08 09:34:00,879 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-08 09:34:00,879 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-08 09:34:00,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-08 09:34:00,880 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-08 09:34:00,880 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-08 09:34:00,880 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-08 09:34:00,880 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-04-08 09:34:00,880 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-04-08 09:34:00,880 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-08 09:34:00,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-08 09:34:00,881 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-08 09:34:00,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-08 09:34:00,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-08 09:34:00,882 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-08 09:34:00,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-08 09:34:00,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-08 09:34:00,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-08 09:34:00,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-08 09:34:00,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-08 09:34:00,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-08 09:34:00,938 INFO L234 CfgBuilder]: Building ICFG [2022-04-08 09:34:00,939 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-08 09:34:01,037 INFO L275 CfgBuilder]: Performing block encoding [2022-04-08 09:34:01,041 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-08 09:34:01,041 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-08 09:34:01,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.04 09:34:01 BoogieIcfgContainer [2022-04-08 09:34:01,043 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-08 09:34:01,044 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-08 09:34:01,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-08 09:34:01,046 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-08 09:34:01,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.04 09:34:00" (1/3) ... [2022-04-08 09:34:01,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@746c523c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.04 09:34:01, skipping insertion in model container [2022-04-08 09:34:01,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 09:34:00" (2/3) ... [2022-04-08 09:34:01,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@746c523c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.04 09:34:01, skipping insertion in model container [2022-04-08 09:34:01,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.04 09:34:01" (3/3) ... [2022-04-08 09:34:01,048 INFO L111 eAbstractionObserver]: Analyzing ICFG gcnr2008.i [2022-04-08 09:34:01,051 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-08 09:34:01,051 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-08 09:34:01,076 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-08 09:34:01,080 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 [2022-04-08 09:34:01,080 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-08 09:34:01,091 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 18 states have internal predecessors, (25), 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) [2022-04-08 09:34:01,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-08 09:34:01,095 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 09:34:01,095 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 09:34:01,095 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 09:34:01,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 09:34:01,098 INFO L85 PathProgramCache]: Analyzing trace with hash 179110084, now seen corresponding path program 1 times [2022-04-08 09:34:01,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 09:34:01,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1640837917] [2022-04-08 09:34:01,110 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 09:34:01,110 INFO L85 PathProgramCache]: Analyzing trace with hash 179110084, now seen corresponding path program 2 times [2022-04-08 09:34:01,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 09:34:01,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808249272] [2022-04-08 09:34:01,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 09:34:01,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 09:34:01,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 09:34:01,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-08 09:34:01,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 09:34:01,231 INFO L290 TraceCheckUtils]: 0: Hoare triple {33#(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(9, 2); {28#true} is VALID [2022-04-08 09:34:01,232 INFO L290 TraceCheckUtils]: 1: Hoare triple {28#true} assume true; {28#true} is VALID [2022-04-08 09:34:01,232 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {28#true} {28#true} #74#return; {28#true} is VALID [2022-04-08 09:34:01,233 INFO L272 TraceCheckUtils]: 0: Hoare triple {28#true} call ULTIMATE.init(); {33#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-08 09:34:01,233 INFO L290 TraceCheckUtils]: 1: Hoare triple {33#(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(9, 2); {28#true} is VALID [2022-04-08 09:34:01,233 INFO L290 TraceCheckUtils]: 2: Hoare triple {28#true} assume true; {28#true} is VALID [2022-04-08 09:34:01,234 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {28#true} {28#true} #74#return; {28#true} is VALID [2022-04-08 09:34:01,234 INFO L272 TraceCheckUtils]: 4: Hoare triple {28#true} call #t~ret4 := main(); {28#true} is VALID [2022-04-08 09:34:01,234 INFO L290 TraceCheckUtils]: 5: Hoare triple {28#true} havoc ~x~0;havoc ~y~0;havoc ~z~0;havoc ~w~0;~w~0 := 0;~z~0 := ~w~0;~y~0 := ~z~0;~x~0 := ~y~0; {28#true} is VALID [2022-04-08 09:34:01,235 INFO L290 TraceCheckUtils]: 6: Hoare triple {28#true} assume !true; {29#false} is VALID [2022-04-08 09:34:01,235 INFO L272 TraceCheckUtils]: 7: Hoare triple {29#false} call __VERIFIER_assert((if ~x~0 >= 4 && ~y~0 <= 2 then 1 else 0)); {29#false} is VALID [2022-04-08 09:34:01,235 INFO L290 TraceCheckUtils]: 8: Hoare triple {29#false} ~cond := #in~cond; {29#false} is VALID [2022-04-08 09:34:01,235 INFO L290 TraceCheckUtils]: 9: Hoare triple {29#false} assume 0 == ~cond; {29#false} is VALID [2022-04-08 09:34:01,235 INFO L290 TraceCheckUtils]: 10: Hoare triple {29#false} assume !false; {29#false} is VALID [2022-04-08 09:34:01,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-08 09:34:01,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 09:34:01,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808249272] [2022-04-08 09:34:01,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808249272] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 09:34:01,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 09:34:01,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-08 09:34:01,238 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 09:34:01,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1640837917] [2022-04-08 09:34:01,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1640837917] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 09:34:01,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 09:34:01,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-08 09:34:01,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77117751] [2022-04-08 09:34:01,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 09:34:01,242 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 [2022-04-08 09:34:01,243 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 09:34:01,245 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) [2022-04-08 09:34:01,257 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 09:34:01,257 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-08 09:34:01,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 09:34:01,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-08 09:34:01,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-08 09:34:01,273 INFO L87 Difference]: Start difference. First operand has 25 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 18 states have internal predecessors, (25), 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) [2022-04-08 09:34:01,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 09:34:01,360 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2022-04-08 09:34:01,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-08 09:34:01,361 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 [2022-04-08 09:34:01,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 09:34:01,362 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) [2022-04-08 09:34:01,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2022-04-08 09:34:01,371 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) [2022-04-08 09:34:01,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2022-04-08 09:34:01,373 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 44 transitions. [2022-04-08 09:34:01,433 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 44 edges. 44 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 09:34:01,438 INFO L225 Difference]: With dead ends: 37 [2022-04-08 09:34:01,438 INFO L226 Difference]: Without dead ends: 18 [2022-04-08 09:34:01,440 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 [2022-04-08 09:34:01,442 INFO L913 BasicCegarLoop]: 28 mSDtfsCounter, 20 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 31 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 [2022-04-08 09:34:01,443 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 31 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-08 09:34:01,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-04-08 09:34:01,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-04-08 09:34:01,463 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 09:34:01,464 INFO L82 GeneralOperation]: Start isEquivalent. First operand 18 states. Second operand has 18 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 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) [2022-04-08 09:34:01,464 INFO L74 IsIncluded]: Start isIncluded. First operand 18 states. Second operand has 18 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 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) [2022-04-08 09:34:01,464 INFO L87 Difference]: Start difference. First operand 18 states. Second operand has 18 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 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) [2022-04-08 09:34:01,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 09:34:01,466 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2022-04-08 09:34:01,466 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2022-04-08 09:34:01,467 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 09:34:01,467 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 09:34:01,467 INFO L74 IsIncluded]: Start isIncluded. First operand has 18 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 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 18 states. [2022-04-08 09:34:01,467 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 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 18 states. [2022-04-08 09:34:01,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 09:34:01,469 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2022-04-08 09:34:01,469 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2022-04-08 09:34:01,469 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 09:34:01,469 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 09:34:01,469 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 09:34:01,469 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 09:34:01,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 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) [2022-04-08 09:34:01,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2022-04-08 09:34:01,471 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 11 [2022-04-08 09:34:01,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 09:34:01,472 INFO L478 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2022-04-08 09:34:01,472 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) [2022-04-08 09:34:01,472 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 18 states and 22 transitions. [2022-04-08 09:34:01,491 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 09:34:01,491 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2022-04-08 09:34:01,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-08 09:34:01,492 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 09:34:01,492 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 09:34:01,492 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-08 09:34:01,492 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 09:34:01,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 09:34:01,493 INFO L85 PathProgramCache]: Analyzing trace with hash 354566591, now seen corresponding path program 1 times [2022-04-08 09:34:01,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 09:34:01,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [295894627] [2022-04-08 09:34:01,494 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 09:34:01,494 INFO L85 PathProgramCache]: Analyzing trace with hash 354566591, now seen corresponding path program 2 times [2022-04-08 09:34:01,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 09:34:01,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139919582] [2022-04-08 09:34:01,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 09:34:01,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 09:34:01,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-08 09:34:01,511 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-08 09:34:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-08 09:34:01,529 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-08 09:34:01,529 INFO L130 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found a feasible trace [2022-04-08 09:34:01,529 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-08 09:34:01,531 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-08 09:34:01,532 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-08 09:34:01,534 INFO L719 BasicCegarLoop]: Path program histogram: [2, 2] [2022-04-08 09:34:01,536 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-04-08 09:34:01,542 WARN L170 areAnnotationChecker]: reach_errorENTRY has no Hoare annotation [2022-04-08 09:34:01,542 WARN L170 areAnnotationChecker]: reach_errorENTRY has no Hoare annotation [2022-04-08 09:34:01,542 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2022-04-08 09:34:01,542 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-04-08 09:34:01,542 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-04-08 09:34:01,542 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2022-04-08 09:34:01,542 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2022-04-08 09:34:01,542 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2022-04-08 09:34:01,542 WARN L170 areAnnotationChecker]: L12-1 has no Hoare annotation [2022-04-08 09:34:01,542 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-08 09:34:01,542 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-04-08 09:34:01,542 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-04-08 09:34:01,542 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2022-04-08 09:34:01,542 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2022-04-08 09:34:01,542 WARN L170 areAnnotationChecker]: L27-3 has no Hoare annotation [2022-04-08 09:34:01,542 WARN L170 areAnnotationChecker]: L27-3 has no Hoare annotation [2022-04-08 09:34:01,542 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2022-04-08 09:34:01,543 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2022-04-08 09:34:01,543 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2022-04-08 09:34:01,543 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-04-08 09:34:01,543 WARN L170 areAnnotationChecker]: L15-2 has no Hoare annotation [2022-04-08 09:34:01,543 WARN L170 areAnnotationChecker]: L27-4 has no Hoare annotation [2022-04-08 09:34:01,543 WARN L170 areAnnotationChecker]: L27-4 has no Hoare annotation [2022-04-08 09:34:01,543 WARN L170 areAnnotationChecker]: L27-1 has no Hoare annotation [2022-04-08 09:34:01,543 WARN L170 areAnnotationChecker]: L27-1 has no Hoare annotation [2022-04-08 09:34:01,543 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2022-04-08 09:34:01,543 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2022-04-08 09:34:01,543 WARN L170 areAnnotationChecker]: L18-2 has no Hoare annotation [2022-04-08 09:34:01,543 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2022-04-08 09:34:01,543 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2022-04-08 09:34:01,543 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2022-04-08 09:34:01,543 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-08 09:34:01,543 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2022-04-08 09:34:01,543 WARN L170 areAnnotationChecker]: L36-2 has no Hoare annotation [2022-04-08 09:34:01,543 WARN L170 areAnnotationChecker]: L31 has no Hoare annotation [2022-04-08 09:34:01,544 WARN L170 areAnnotationChecker]: L31 has no Hoare annotation [2022-04-08 09:34:01,544 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2022-04-08 09:34:01,544 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2022-04-08 09:34:01,544 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2022-04-08 09:34:01,544 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2022-04-08 09:34:01,544 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2022-04-08 09:34:01,544 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. [2022-04-08 09:34:01,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.04 09:34:01 BoogieIcfgContainer [2022-04-08 09:34:01,545 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-08 09:34:01,545 INFO L158 Benchmark]: Toolchain (without parser) took 1001.22ms. Allocated memory was 177.2MB in the beginning and 212.9MB in the end (delta: 35.7MB). Free memory was 119.6MB in the beginning and 127.7MB in the end (delta: -8.1MB). Peak memory consumption was 28.8MB. Max. memory is 8.0GB. [2022-04-08 09:34:01,546 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 177.2MB. Free memory is still 135.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-08 09:34:01,546 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.48ms. Allocated memory was 177.2MB in the beginning and 212.9MB in the end (delta: 35.7MB). Free memory was 119.4MB in the beginning and 183.2MB in the end (delta: -63.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-04-08 09:34:01,546 INFO L158 Benchmark]: Boogie Preprocessor took 33.36ms. Allocated memory is still 212.9MB. Free memory was 183.2MB in the beginning and 181.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-08 09:34:01,547 INFO L158 Benchmark]: RCFGBuilder took 217.39ms. Allocated memory is still 212.9MB. Free memory was 181.7MB in the beginning and 169.6MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-04-08 09:34:01,547 INFO L158 Benchmark]: TraceAbstraction took 500.90ms. Allocated memory is still 212.9MB. Free memory was 169.1MB in the beginning and 127.7MB in the end (delta: 41.4MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. [2022-04-08 09:34:01,548 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 0.11ms. Allocated memory is still 177.2MB. Free memory is still 135.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 244.48ms. Allocated memory was 177.2MB in the beginning and 212.9MB in the end (delta: 35.7MB). Free memory was 119.4MB in the beginning and 183.2MB in the end (delta: -63.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.36ms. Allocated memory is still 212.9MB. Free memory was 183.2MB in the beginning and 181.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 217.39ms. Allocated memory is still 212.9MB. Free memory was 181.7MB in the beginning and 169.6MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 500.90ms. Allocated memory is still 212.9MB. Free memory was 169.1MB in the beginning and 127.7MB in the end (delta: 41.4MB). Peak memory consumption was 41.9MB. 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: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L25] int x,y,z,w; [L26] EXPR w = 0 [L26] EXPR z = w = 0 [L26] EXPR y = z = w = 0 [L26] x = y = z = w = 0 [L27] COND FALSE !(__VERIFIER_nondet_int() && y < 10000) [L42] CALL __VERIFIER_assert(x >= 4 && y <= 2) [L18] COND TRUE !(cond) [L19] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 28 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, 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 proved your program to be incorrect! [2022-04-08 09:34:01,572 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...