/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/trex03-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-e106359-m [2022-04-14 13:18:50,991 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-14 13:18:50,993 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-14 13:18:51,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-14 13:18:51,047 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-14 13:18:51,049 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-14 13:18:51,049 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-14 13:18:51,051 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-14 13:18:51,052 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-14 13:18:51,052 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-14 13:18:51,054 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-14 13:18:51,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-14 13:18:51,059 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-14 13:18:51,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-14 13:18:51,060 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-14 13:18:51,061 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-14 13:18:51,062 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-14 13:18:51,066 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-14 13:18:51,071 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-14 13:18:51,072 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-14 13:18:51,073 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-14 13:18:51,073 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2022-04-14 13:18:51,095 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-14 13:18:51,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-14 13:18:51,096 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-14 13:18:51,096 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-14 13:18:51,097 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-14 13:18:51,097 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-14 13:18:51,097 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-14 13:18:51,097 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-14 13:18:51,097 INFO L138 SettingsManager]: * Use SBE=true [2022-04-14 13:18:51,098 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-14 13:18:51,098 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-14 13:18:51,098 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-14 13:18:51,098 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-14 13:18:51,098 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-14 13:18:51,099 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-14 13:18:51,099 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-14 13:18:51,099 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-14 13:18:51,099 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-14 13:18:51,100 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-14 13:18:51,100 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-14 13:18:51,100 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-14 13:18:51,100 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-14 13:18:51,100 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-14 13:18:51,100 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-14 13:18:51,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-14 13:18:51,101 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-14 13:18:51,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-14 13:18:51,101 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-14 13:18:51,101 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-14 13:18:51,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-14 13:18:51,101 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-14 13:18:51,101 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-14 13:18:51,101 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-14 13:18:51,101 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-14 13:18:51,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-14 13:18:51,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-14 13:18:51,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-14 13:18:51,320 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-14 13:18:51,320 INFO L275 PluginConnector]: CDTParser initialized [2022-04-14 13:18:51,321 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/trex03-1.c [2022-04-14 13:18:51,386 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3685e0fda/b72644cc74bc49cd81a757164b94e5a8/FLAGa220afe60 [2022-04-14 13:18:51,678 INFO L306 CDTParser]: Found 1 translation units. [2022-04-14 13:18:51,679 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/trex03-1.c [2022-04-14 13:18:51,683 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3685e0fda/b72644cc74bc49cd81a757164b94e5a8/FLAGa220afe60 [2022-04-14 13:18:52,111 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3685e0fda/b72644cc74bc49cd81a757164b94e5a8 [2022-04-14 13:18:52,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-14 13:18:52,114 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-14 13:18:52,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-14 13:18:52,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-14 13:18:52,128 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-14 13:18:52,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 01:18:52" (1/1) ... [2022-04-14 13:18:52,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@585fe1fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:18:52, skipping insertion in model container [2022-04-14 13:18:52,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 01:18:52" (1/1) ... [2022-04-14 13:18:52,134 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-14 13:18:52,142 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-14 13:18:52,253 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/trex03-1.c[320,333] [2022-04-14 13:18:52,263 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-14 13:18:52,269 INFO L203 MainTranslator]: Completed pre-run [2022-04-14 13:18:52,276 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/trex03-1.c[320,333] [2022-04-14 13:18:52,279 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-14 13:18:52,288 INFO L208 MainTranslator]: Completed translation [2022-04-14 13:18:52,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:18:52 WrapperNode [2022-04-14 13:18:52,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-14 13:18:52,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-14 13:18:52,289 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-14 13:18:52,289 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-14 13:18:52,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:18:52" (1/1) ... [2022-04-14 13:18:52,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:18:52" (1/1) ... [2022-04-14 13:18:52,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:18:52" (1/1) ... [2022-04-14 13:18:52,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:18:52" (1/1) ... [2022-04-14 13:18:52,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:18:52" (1/1) ... [2022-04-14 13:18:52,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:18:52" (1/1) ... [2022-04-14 13:18:52,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:18:52" (1/1) ... [2022-04-14 13:18:52,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-14 13:18:52,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-14 13:18:52,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-14 13:18:52,308 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-14 13:18:52,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:18:52" (1/1) ... [2022-04-14 13:18:52,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-14 13:18:52,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-14 13:18:52,337 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) [2022-04-14 13:18:52,346 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 [2022-04-14 13:18:52,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-14 13:18:52,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-14 13:18:52,360 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-14 13:18:52,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-14 13:18:52,360 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-14 13:18:52,361 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-14 13:18:52,361 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-14 13:18:52,361 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-14 13:18:52,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-14 13:18:52,361 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-14 13:18:52,361 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2022-04-14 13:18:52,361 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2022-04-14 13:18:52,361 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-14 13:18:52,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-14 13:18:52,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-14 13:18:52,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-14 13:18:52,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-14 13:18:52,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-14 13:18:52,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-14 13:18:52,402 INFO L234 CfgBuilder]: Building ICFG [2022-04-14 13:18:52,403 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-14 13:18:52,526 INFO L275 CfgBuilder]: Performing block encoding [2022-04-14 13:18:52,531 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-14 13:18:52,531 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-14 13:18:52,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 01:18:52 BoogieIcfgContainer [2022-04-14 13:18:52,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-14 13:18:52,533 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-14 13:18:52,533 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-14 13:18:52,545 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-14 13:18:52,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.04 01:18:52" (1/3) ... [2022-04-14 13:18:52,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38ee0fbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 01:18:52, skipping insertion in model container [2022-04-14 13:18:52,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 01:18:52" (2/3) ... [2022-04-14 13:18:52,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38ee0fbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 01:18:52, skipping insertion in model container [2022-04-14 13:18:52,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 01:18:52" (3/3) ... [2022-04-14 13:18:52,547 INFO L111 eAbstractionObserver]: Analyzing ICFG trex03-1.c [2022-04-14 13:18:52,551 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-14 13:18:52,551 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-14 13:18:52,580 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-14 13:18:52,584 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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 [2022-04-14 13:18:52,585 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-14 13:18:52,598 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 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) [2022-04-14 13:18:52,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-14 13:18:52,603 INFO L491 BasicCegarLoop]: Found error trace [2022-04-14 13:18:52,603 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-14 13:18:52,603 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-14 13:18:52,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-14 13:18:52,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1016564801, now seen corresponding path program 1 times [2022-04-14 13:18:52,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-14 13:18:52,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595451815] [2022-04-14 13:18:52,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 13:18:52,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-14 13:18:52,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 13:18:52,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-14 13:18:52,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 13:18:52,764 INFO L290 TraceCheckUtils]: 0: Hoare triple {30#(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(11, 2);call #Ultimate.allocInit(12, 3); {25#true} is VALID [2022-04-14 13:18:52,764 INFO L290 TraceCheckUtils]: 1: Hoare triple {25#true} assume true; {25#true} is VALID [2022-04-14 13:18:52,765 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {25#true} {25#true} #49#return; {25#true} is VALID [2022-04-14 13:18:52,766 INFO L272 TraceCheckUtils]: 0: Hoare triple {25#true} call ULTIMATE.init(); {30#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-14 13:18:52,766 INFO L290 TraceCheckUtils]: 1: Hoare triple {30#(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(11, 2);call #Ultimate.allocInit(12, 3); {25#true} is VALID [2022-04-14 13:18:52,767 INFO L290 TraceCheckUtils]: 2: Hoare triple {25#true} assume true; {25#true} is VALID [2022-04-14 13:18:52,767 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {25#true} {25#true} #49#return; {25#true} is VALID [2022-04-14 13:18:52,767 INFO L272 TraceCheckUtils]: 4: Hoare triple {25#true} call #t~ret11 := main(); {25#true} is VALID [2022-04-14 13:18:52,767 INFO L290 TraceCheckUtils]: 5: Hoare triple {25#true} ~x1~0 := #t~nondet4;havoc #t~nondet4;~x2~0 := #t~nondet5;havoc #t~nondet5;~x3~0 := #t~nondet6;havoc #t~nondet6;~d1~0 := 1;~d2~0 := 1;~d3~0 := 1;~c1~0 := #t~nondet7;havoc #t~nondet7;~c2~0 := #t~nondet8;havoc #t~nondet8; {25#true} is VALID [2022-04-14 13:18:52,768 INFO L290 TraceCheckUtils]: 6: Hoare triple {25#true} assume !true; {26#false} is VALID [2022-04-14 13:18:52,768 INFO L272 TraceCheckUtils]: 7: Hoare triple {26#false} call __VERIFIER_assert((if (0 == ~x1~0 % 4294967296 && 0 == ~x2~0 % 4294967296) && 0 == ~x3~0 % 4294967296 then 1 else 0)); {26#false} is VALID [2022-04-14 13:18:52,768 INFO L290 TraceCheckUtils]: 8: Hoare triple {26#false} ~cond := #in~cond; {26#false} is VALID [2022-04-14 13:18:52,768 INFO L290 TraceCheckUtils]: 9: Hoare triple {26#false} assume 0 == ~cond; {26#false} is VALID [2022-04-14 13:18:52,771 INFO L290 TraceCheckUtils]: 10: Hoare triple {26#false} assume !false; {26#false} is VALID [2022-04-14 13:18:52,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-14 13:18:52,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-14 13:18:52,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595451815] [2022-04-14 13:18:52,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595451815] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-14 13:18:52,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-14 13:18:52,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-14 13:18:52,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988254911] [2022-04-14 13:18:52,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-14 13:18:52,777 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 [2022-04-14 13:18:52,778 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-14 13:18:52,780 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) [2022-04-14 13:18:52,792 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 13:18:52,792 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-14 13:18:52,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-14 13:18:52,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-14 13:18:52,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-14 13:18:52,808 INFO L87 Difference]: Start difference. First operand has 22 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 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) [2022-04-14 13:18:52,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 13:18:52,857 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2022-04-14 13:18:52,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-14 13:18:52,857 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 [2022-04-14 13:18:52,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-14 13:18:52,858 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) [2022-04-14 13:18:52,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 39 transitions. [2022-04-14 13:18:52,863 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) [2022-04-14 13:18:52,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 39 transitions. [2022-04-14 13:18:52,866 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 39 transitions. [2022-04-14 13:18:52,942 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 39 edges. 39 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 13:18:52,947 INFO L225 Difference]: With dead ends: 34 [2022-04-14 13:18:52,947 INFO L226 Difference]: Without dead ends: 15 [2022-04-14 13:18:52,949 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 [2022-04-14 13:18:52,951 INFO L913 BasicCegarLoop]: 23 mSDtfsCounter, 15 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 26 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 [2022-04-14 13:18:52,952 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 26 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-14 13:18:52,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-04-14 13:18:52,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-04-14 13:18:52,983 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-14 13:18:52,985 INFO L82 GeneralOperation]: Start isEquivalent. First operand 15 states. Second operand has 15 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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) [2022-04-14 13:18:52,985 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand has 15 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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) [2022-04-14 13:18:52,986 INFO L87 Difference]: Start difference. First operand 15 states. Second operand has 15 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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) [2022-04-14 13:18:52,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 13:18:52,993 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2022-04-14 13:18:52,993 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-04-14 13:18:52,993 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 13:18:52,993 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 13:18:52,994 INFO L74 IsIncluded]: Start isIncluded. First operand has 15 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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 15 states. [2022-04-14 13:18:52,994 INFO L87 Difference]: Start difference. First operand has 15 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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 15 states. [2022-04-14 13:18:52,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 13:18:52,997 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2022-04-14 13:18:52,997 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-04-14 13:18:52,998 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 13:18:52,998 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 13:18:52,998 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-14 13:18:52,998 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-14 13:18:52,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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) [2022-04-14 13:18:52,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-04-14 13:18:53,000 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2022-04-14 13:18:53,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-14 13:18:53,001 INFO L478 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-04-14 13:18:53,001 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) [2022-04-14 13:18:53,002 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-04-14 13:18:53,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-14 13:18:53,003 INFO L491 BasicCegarLoop]: Found error trace [2022-04-14 13:18:53,006 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-14 13:18:53,006 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-14 13:18:53,010 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-14 13:18:53,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-14 13:18:53,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1031341137, now seen corresponding path program 1 times [2022-04-14 13:18:53,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-14 13:18:53,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353607861] [2022-04-14 13:18:53,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 13:18:53,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-14 13:18:53,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-14 13:18:53,045 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-14 13:18:53,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-14 13:18:53,070 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-14 13:18:53,070 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-14 13:18:53,071 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-14 13:18:53,072 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-14 13:18:53,074 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1] [2022-04-14 13:18:53,076 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-14 13:18:53,088 WARN L170 areAnnotationChecker]: reach_errorENTRY has no Hoare annotation [2022-04-14 13:18:53,088 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2022-04-14 13:18:53,088 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-04-14 13:18:53,088 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-04-14 13:18:53,088 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2022-04-14 13:18:53,088 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2022-04-14 13:18:53,088 WARN L170 areAnnotationChecker]: reach_errorFINAL has no Hoare annotation [2022-04-14 13:18:53,088 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-14 13:18:53,088 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-04-14 13:18:53,088 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-04-14 13:18:53,088 WARN L170 areAnnotationChecker]: L21-2 has no Hoare annotation [2022-04-14 13:18:53,088 WARN L170 areAnnotationChecker]: L21-2 has no Hoare annotation [2022-04-14 13:18:53,088 WARN L170 areAnnotationChecker]: L21-2 has no Hoare annotation [2022-04-14 13:18:53,089 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2022-04-14 13:18:53,089 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2022-04-14 13:18:53,089 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2022-04-14 13:18:53,089 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-04-14 13:18:53,089 WARN L170 areAnnotationChecker]: L21-3 has no Hoare annotation [2022-04-14 13:18:53,089 WARN L170 areAnnotationChecker]: L21-3 has no Hoare annotation [2022-04-14 13:18:53,089 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2022-04-14 13:18:53,089 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2022-04-14 13:18:53,089 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2022-04-14 13:18:53,089 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2022-04-14 13:18:53,089 WARN L170 areAnnotationChecker]: L6-2 has no Hoare annotation [2022-04-14 13:18:53,089 WARN L170 areAnnotationChecker]: L30 has no Hoare annotation [2022-04-14 13:18:53,089 WARN L170 areAnnotationChecker]: L24-2 has no Hoare annotation [2022-04-14 13:18:53,089 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2022-04-14 13:18:53,089 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2022-04-14 13:18:53,089 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-14 13:18:53,090 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2022-04-14 13:18:53,090 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2022-04-14 13:18:53,090 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. [2022-04-14 13:18:53,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.04 01:18:53 BoogieIcfgContainer [2022-04-14 13:18:53,090 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-14 13:18:53,091 INFO L158 Benchmark]: Toolchain (without parser) took 977.22ms. Allocated memory is still 194.0MB. Free memory was 142.8MB in the beginning and 118.1MB in the end (delta: 24.7MB). Peak memory consumption was 24.5MB. Max. memory is 8.0GB. [2022-04-14 13:18:53,091 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 194.0MB. Free memory is still 159.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-14 13:18:53,092 INFO L158 Benchmark]: CACSL2BoogieTranslator took 163.75ms. Allocated memory is still 194.0MB. Free memory was 142.7MB in the beginning and 168.3MB in the end (delta: -25.6MB). Peak memory consumption was 11.9MB. Max. memory is 8.0GB. [2022-04-14 13:18:53,092 INFO L158 Benchmark]: Boogie Preprocessor took 18.39ms. Allocated memory is still 194.0MB. Free memory was 168.3MB in the beginning and 166.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-14 13:18:53,092 INFO L158 Benchmark]: RCFGBuilder took 224.15ms. Allocated memory is still 194.0MB. Free memory was 166.8MB in the beginning and 155.9MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-04-14 13:18:53,093 INFO L158 Benchmark]: TraceAbstraction took 557.16ms. Allocated memory is still 194.0MB. Free memory was 155.3MB in the beginning and 118.1MB in the end (delta: 37.2MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. [2022-04-14 13:18:53,094 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 0.09ms. Allocated memory is still 194.0MB. Free memory is still 159.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 163.75ms. Allocated memory is still 194.0MB. Free memory was 142.7MB in the beginning and 168.3MB in the end (delta: -25.6MB). Peak memory consumption was 11.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.39ms. Allocated memory is still 194.0MB. Free memory was 168.3MB in the beginning and 166.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 224.15ms. Allocated memory is still 194.0MB. Free memory was 166.8MB in the beginning and 155.9MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 557.16ms. Allocated memory is still 194.0MB. Free memory was 155.3MB in the beginning and 118.1MB in the end (delta: 37.2MB). Peak memory consumption was 36.7MB. 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: [L17] unsigned int x1=__VERIFIER_nondet_uint(), x2=__VERIFIER_nondet_uint(), x3=__VERIFIER_nondet_uint(); [L17] unsigned int x1=__VERIFIER_nondet_uint(), x2=__VERIFIER_nondet_uint(), x3=__VERIFIER_nondet_uint(); [L17] unsigned int x1=__VERIFIER_nondet_uint(), x2=__VERIFIER_nondet_uint(), x3=__VERIFIER_nondet_uint(); [L18] unsigned int d1=1, d2=1, d3=1; [L19] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); [L19] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); [L21] COND FALSE !(x1>0 && x2>0 && x3>0) VAL [c1=4294967301, c2=4294967299, d1=1, d2=1, d3=1, x1=0, x2=0, x3=4294967297] [L30] CALL __VERIFIER_assert(x1==0 && x2==0 && x3==0) VAL [\old(cond)=0] [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L7] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 26 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, 23 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=22occurred 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: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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! [2022-04-14 13:18:53,119 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...